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linux-7.2.3/drivers/pcmcia/Kconfig

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+# SPDX-License-Identifier: GPL-2.0-only
+#
+# PCCARD (PCMCIA/CardBus) bus subsystem configuration
+#
+
+menuconfig PCCARD
+	tristate "PCCard (PCMCIA/CardBus) support"
+	help
+	  Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
+	  computer.  These are credit-card size devices such as network cards,
+	  modems or hard drives often used with laptops computers.  There are
+	  actually two varieties of these cards: 16 bit PCMCIA and 32 bit
+	  CardBus cards.
+
+	  To compile this driver as modules, choose M here: the
+	  module will be called pcmcia_core.
+
+if PCCARD
+
+config PCMCIA
+	tristate "16-bit PCMCIA support"
+	depends on HAS_IOMEM
+	select CRC32
+	default y
+	help
+	   This option enables support for 16-bit PCMCIA cards. Most older
+	   PC-cards are such 16-bit PCMCIA cards, so unless you know you're
+	   only using 32-bit CardBus cards, say Y or M here.
+
+	   To use 16-bit PCMCIA cards, you will need supporting software in
+	   most cases. (see the file <file:Documentation/Changes> for
+	   location and details).
+
+	   To compile this driver as modules, choose M here: the
+	   module will be called pcmcia.
+
+	   If unsure, say Y.
+
+config PCMCIA_LOAD_CIS
+	bool "Load CIS updates from userspace"
+	depends on PCMCIA
+	select FW_LOADER
+	default y
+	help
+	  Some PCMCIA cards require an updated Card Information Structure (CIS)
+	  to be loaded from userspace to work correctly. If you say Y here,
+	  and your userspace is arranged correctly, this will be loaded
+	  automatically using the in-kernel firmware loader and the hotplug
+	  subsystem, instead of relying on cardmgr from pcmcia-cs to do so.
+
+	  If unsure, say Y.
+
+config CARDBUS
+	bool "32-bit CardBus support"
+	depends on PCI
+	default y
+	help
+	  CardBus is a bus mastering architecture for PC-cards, which allows
+	  for 32 bit PC-cards (the original PCMCIA standard specifies only
+	  a 16 bit wide bus). Many newer PC-cards are actually CardBus cards.
+
+	  To use 32 bit PC-cards, you also need a CardBus compatible host
+	  bridge. Virtually all modern PCMCIA bridges do this, and most of
+	  them are "yenta-compatible", so say Y or M there, too.
+
+	  If unsure, say Y.
+
+config PCMCIA_MAX1600
+	tristate
+
+comment "PC-card bridges"
+
+config YENTA
+	tristate "CardBus yenta-compatible bridge support"
+	depends on PCI
+	select CARDBUS if !EXPERT
+	select PCCARD_NONSTATIC if PCMCIA != n
+	help
+	  This option enables support for CardBus host bridges.  Virtually
+	  all modern PCMCIA bridges are CardBus compatible.  A "bridge" is
+	  the hardware inside your computer that PCMCIA cards are plugged
+	  into.
+
+	  To compile this driver as modules, choose M here: the
+	  module will be called yenta_socket.
+
+	  If unsure, say Y.
+
+config YENTA_O2
+	default y
+	bool "Special initialization for O2Micro bridges" if EXPERT
+	depends on YENTA
+
+config YENTA_RICOH
+	default y
+	bool "Special initialization for Ricoh bridges" if EXPERT
+	depends on YENTA
+
+config YENTA_TI
+	default y
+	bool "Special initialization for TI and EnE bridges" if EXPERT
+	depends on YENTA
+
+config YENTA_ENE_TUNE
+	default y
+	bool "Auto-tune EnE bridges for CB cards" if EXPERT
+	depends on YENTA_TI && CARDBUS
+
+config YENTA_TOSHIBA
+	default y
+	bool "Special initialization for Toshiba ToPIC bridges" if EXPERT
+	depends on YENTA
+
+config PD6729
+	tristate "Cirrus PD6729 compatible bridge support"
+	depends on PCMCIA && PCI && HAS_IOPORT
+	select PCCARD_NONSTATIC
+	help
+	  This provides support for the Cirrus PD6729 PCI-to-PCMCIA bridge
+	  device, found in some older laptops and PCMCIA card readers.
+
+config PCMCIA_ALCHEMY_DEVBOARD
+	tristate "Alchemy Db/Pb1xxx PCMCIA socket services"
+	depends on MIPS_DB1XXX && PCMCIA
+	help
+	  Enable this driver of you want PCMCIA support on your Alchemy
+	  Db1000, Db/Pb1100, Db/Pb1500, Db/Pb1550, Db/Pb1200, DB1300
+	  board.  NOT suitable for the PB1000!
+
+	  This driver is also available as a module called db1xxx_ss.ko
+
+config PCMCIA_XXS1500
+	tristate "MyCable XXS1500 PCMCIA socket support"
+	depends on PCMCIA && MIPS_XXS1500
+	help
+	  Support for the PCMCIA/CF socket interface on MyCable XXS1500
+	  systems.
+
+	  This driver is also available as a module called xxs1500_ss.ko
+
+config PCMCIA_BCM63XX
+	tristate "bcm63xx pcmcia support"
+	depends on BCM63XX && PCMCIA
+
+config PCMCIA_SOC_COMMON
+	tristate
+
+config PCMCIA_SA11XX_BASE
+	tristate
+
+config PCMCIA_SA1100
+	tristate "SA1100 support"
+	depends on ARM && ARCH_SA1100 && PCMCIA
+	select PCMCIA_SOC_COMMON
+	select PCMCIA_SA11XX_BASE
+	help
+	  Say Y here to include support for SA11x0-based PCMCIA or CF
+	  sockets, found on HP iPAQs, Yopy, and other StrongARM(R)/
+	  Xscale(R) embedded machines.
+
+	  This driver is also available as a module called sa1100_cs.
+
+config PCMCIA_SA1111
+	tristate "SA1111 support"
+	depends on ARM && SA1111 && PCMCIA
+	select PCMCIA_SOC_COMMON
+	select PCMCIA_SA11XX_BASE
+	select PCMCIA_MAX1600 if ASSABET_NEPONSET
+	help
+	  Say Y  here to include support for SA1111-based PCMCIA or CF
+	  sockets, found on the Jornada 720, Graphicsmaster and other
+	  StrongARM(R)/Xscale(R) embedded machines.
+
+	  This driver is also available as a module called sa1111_cs.
+
+config PCMCIA_PXA2XX
+	tristate "PXA2xx support"
+	depends on ARM && ARCH_PXA && PCMCIA && PXA_SHARPSL
+	select PCMCIA_SOC_COMMON
+	help
+	  Say Y here to include support for the PXA2xx PCMCIA controller
+
+config PCMCIA_DEBUG
+	bool "Enable debugging"
+	depends on (PCMCIA_SA1111 || PCMCIA_SA1100 || PCMCIA_PXA2XX)
+	help
+	  Say Y here to enable debugging for the SoC PCMCIA layer.
+	  You will need to choose the debugging level either via the
+	  kernel command line, or module options depending whether
+	  you build the drivers as modules.
+
+	  The kernel command line options are:
+	    sa11xx_core.pc_debug=N
+	    pxa2xx_core.pc_debug=N
+
+	  The module option is called pc_debug=N
+
+	  In all the above examples, N is the debugging verbosity
+	  level.
+
+config PCMCIA_PROBE
+	bool
+	default y if ISA && !ARCH_SA1100 && !PARISC
+
+config OMAP_CF
+	tristate "OMAP CompactFlash Controller"
+	depends on PCMCIA
+	depends on ARCH_OMAP16XX || (ARM && COMPILE_TEST)
+	help
+	  Say Y here to support the CompactFlash controller on OMAP.
+	  Note that this doesn't support "True IDE" mode.
+
+config ELECTRA_CF
+	tristate "Electra CompactFlash Controller"
+	depends on PCMCIA && PPC_PASEMI
+	help
+	  Say Y here to support the CompactFlash controller on the
+	  PA Semi Electra eval board.
+
+config PCCARD_NONSTATIC
+	bool
+
+endif	# PCCARD

linux-7.2.3/drivers/pcmcia/Makefile

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+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the kernel pcmcia subsystem (c/o David Hinds)
+#
+
+pcmcia_core-y					+= cs.o socket_sysfs.o
+pcmcia_core-$(CONFIG_CARDBUS)			+= cardbus.o
+obj-$(CONFIG_PCCARD)				+= pcmcia_core.o
+
+pcmcia-y					+= ds.o pcmcia_resource.o cistpl.o pcmcia_cis.o
+obj-$(CONFIG_PCMCIA)				+= pcmcia.o
+
+pcmcia_rsrc-y					+= rsrc_mgr.o
+pcmcia_rsrc-$(CONFIG_PCCARD_NONSTATIC)		+= rsrc_nonstatic.o
+obj-$(CONFIG_PCCARD)				+= pcmcia_rsrc.o
+
+
+# socket drivers
+
+obj-$(CONFIG_YENTA) 				+= yenta_socket.o
+
+obj-$(CONFIG_PD6729)				+= pd6729.o
+obj-$(CONFIG_PCMCIA_SOC_COMMON)			+= soc_common.o
+obj-$(CONFIG_PCMCIA_SA11XX_BASE)		+= sa11xx_base.o
+obj-$(CONFIG_PCMCIA_SA1100)			+= sa1100_cs.o
+obj-$(CONFIG_PCMCIA_SA1111)			+= sa1111_cs.o
+obj-$(CONFIG_PCMCIA_BCM63XX)			+= bcm63xx_pcmcia.o
+obj-$(CONFIG_OMAP_CF)				+= omap_cf.o
+obj-$(CONFIG_ELECTRA_CF)			+= electra_cf.o
+obj-$(CONFIG_PCMCIA_ALCHEMY_DEVBOARD)		+= db1xxx_ss.o
+obj-$(CONFIG_PCMCIA_MAX1600)			+= max1600.o
+
+sa1111_cs-y					+= sa1111_generic.o
+sa1111_cs-$(CONFIG_ASSABET_NEPONSET)		+= sa1111_neponset.o
+sa1111_cs-$(CONFIG_SA1100_JORNADA720)		+= sa1111_jornada720.o
+
+sa1100_cs-y					+= sa1100_generic.o
+sa1100_cs-$(CONFIG_SA1100_COLLIE)		+= pxa2xx_sharpsl.o
+sa1100_cs-$(CONFIG_SA1100_H3600)		+= sa1100_h3600.o
+
+pxa2xx-obj-$(CONFIG_PXA_SHARPSL)		+= pxa2xx_sharpsl.o
+obj-$(CONFIG_PCMCIA_PXA2XX)			+= pxa2xx_base.o $(pxa2xx-obj-y)
+obj-$(CONFIG_PCMCIA_XXS1500)			+= xxs1500_ss.o

linux-7.2.3/drivers/pcmcia/bcm63xx_pcmcia.c

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+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/timer.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/gpio.h>
+
+#include <bcm63xx_regs.h>
+#include <bcm63xx_io.h>
+#include "bcm63xx_pcmcia.h"
+
+#define PFX	"bcm63xx_pcmcia: "
+
+#ifdef CONFIG_CARDBUS
+/* if cardbus is used, platform device needs reference to actual pci
+ * device */
+static struct pci_dev *bcm63xx_cb_dev;
+#endif
+
+/*
+ * read/write helper for pcmcia regs
+ */
+static inline u32 pcmcia_readl(struct bcm63xx_pcmcia_socket *skt, u32 off)
+{
+	return bcm_readl(skt->base + off);
+}
+
+static inline void pcmcia_writel(struct bcm63xx_pcmcia_socket *skt,
+				 u32 val, u32 off)
+{
+	bcm_writel(val, skt->base + off);
+}
+
+/*
+ * This callback should (re-)initialise the socket, turn on status
+ * interrupts and PCMCIA bus, and wait for power to stabilise so that
+ * the card status signals report correctly.
+ *
+ * Hardware cannot do that.
+ */
+static int bcm63xx_pcmcia_sock_init(struct pcmcia_socket *sock)
+{
+	return 0;
+}
+
+/*
+ * This callback should remove power on the socket, disable IRQs from
+ * the card, turn off status interrupts, and disable the PCMCIA bus.
+ *
+ * Hardware cannot do that.
+ */
+static int bcm63xx_pcmcia_suspend(struct pcmcia_socket *sock)
+{
+	return 0;
+}
+
+/*
+ * Implements the set_socket() operation for the in-kernel PCMCIA
+ * service (formerly SS_SetSocket in Card Services). We more or
+ * less punt all of this work and let the kernel handle the details
+ * of power configuration, reset, &c. We also record the value of
+ * `state' in order to regurgitate it to the PCMCIA core later.
+ */
+static int bcm63xx_pcmcia_set_socket(struct pcmcia_socket *sock,
+				     socket_state_t *state)
+{
+	struct bcm63xx_pcmcia_socket *skt;
+	unsigned long flags;
+	u32 val;
+
+	skt = sock->driver_data;
+
+	spin_lock_irqsave(&skt->lock, flags);
+
+	/* note: hardware cannot control socket power, so we will
+	 * always report SS_POWERON */
+
+	/* apply socket reset */
+	val = pcmcia_readl(skt, PCMCIA_C1_REG);
+	if (state->flags & SS_RESET)
+		val |= PCMCIA_C1_RESET_MASK;
+	else
+		val &= ~PCMCIA_C1_RESET_MASK;
+
+	/* reverse reset logic for cardbus card */
+	if (skt->card_detected && (skt->card_type & CARD_CARDBUS))
+		val ^= PCMCIA_C1_RESET_MASK;
+
+	pcmcia_writel(skt, val, PCMCIA_C1_REG);
+
+	/* keep requested state for event reporting */
+	skt->requested_state = *state;
+
+	spin_unlock_irqrestore(&skt->lock, flags);
+
+	return 0;
+}
+
+/*
+ * identity cardtype from VS[12] input, CD[12] input while only VS2 is
+ * floating, and CD[12] input while only VS1 is floating
+ */
+enum {
+	IN_VS1 = (1 << 0),
+	IN_VS2 = (1 << 1),
+	IN_CD1_VS2H = (1 << 2),
+	IN_CD2_VS2H = (1 << 3),
+	IN_CD1_VS1H = (1 << 4),
+	IN_CD2_VS1H = (1 << 5),
+};
+
+static const u8 vscd_to_cardtype[] = {
+
+	/* VS1 float, VS2 float */
+	[IN_VS1 | IN_VS2] = (CARD_PCCARD | CARD_5V),
+
+	/* VS1 grounded, VS2 float */
+	[IN_VS2] = (CARD_PCCARD | CARD_5V | CARD_3V),
+
+	/* VS1 grounded, VS2 grounded */
+	[0] = (CARD_PCCARD | CARD_5V | CARD_3V | CARD_XV),
+
+	/* VS1 tied to CD1, VS2 float */
+	[IN_VS1 | IN_VS2 | IN_CD1_VS1H] = (CARD_CARDBUS | CARD_3V),
+
+	/* VS1 grounded, VS2 tied to CD2 */
+	[IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V | CARD_XV),
+
+	/* VS1 tied to CD2, VS2 grounded */
+	[IN_VS1 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_3V | CARD_XV | CARD_YV),
+
+	/* VS1 float, VS2 grounded */
+	[IN_VS1] = (CARD_PCCARD | CARD_XV),
+
+	/* VS1 float, VS2 tied to CD2 */
+	[IN_VS1 | IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V),
+
+	/* VS1 float, VS2 tied to CD1 */
+	[IN_VS1 | IN_VS2 | IN_CD1_VS2H] = (CARD_CARDBUS | CARD_XV | CARD_YV),
+
+	/* VS1 tied to CD2, VS2 float */
+	[IN_VS1 | IN_VS2 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_YV),
+
+	/* VS2 grounded, VS1 is tied to CD1, CD2 is grounded */
+	[IN_VS1 | IN_CD1_VS1H] = 0, /* ignore cardbay */
+};
+
+/*
+ * poll hardware to check card insertion status
+ */
+static unsigned int __get_socket_status(struct bcm63xx_pcmcia_socket *skt)
+{
+	unsigned int stat;
+	u32 val;
+
+	stat = 0;
+
+	/* check CD for card presence */
+	val = pcmcia_readl(skt, PCMCIA_C1_REG);
+
+	if (!(val & PCMCIA_C1_CD1_MASK) && !(val & PCMCIA_C1_CD2_MASK))
+		stat |= SS_DETECT;
+
+	/* if new insertion, detect cardtype */
+	if ((stat & SS_DETECT) && !skt->card_detected) {
+		unsigned int stat = 0;
+
+		/* float VS1, float VS2 */
+		val |= PCMCIA_C1_VS1OE_MASK;
+		val |= PCMCIA_C1_VS2OE_MASK;
+		pcmcia_writel(skt, val, PCMCIA_C1_REG);
+
+		/* wait for output to stabilize and read VS[12] */
+		udelay(10);
+		val = pcmcia_readl(skt, PCMCIA_C1_REG);
+		stat |= (val & PCMCIA_C1_VS1_MASK) ? IN_VS1 : 0;
+		stat |= (val & PCMCIA_C1_VS2_MASK) ? IN_VS2 : 0;
+
+		/* drive VS1 low, float VS2 */
+		val &= ~PCMCIA_C1_VS1OE_MASK;
+		val |= PCMCIA_C1_VS2OE_MASK;
+		pcmcia_writel(skt, val, PCMCIA_C1_REG);
+
+		/* wait for output to stabilize and read CD[12] */
+		udelay(10);
+		val = pcmcia_readl(skt, PCMCIA_C1_REG);
+		stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS2H : 0;
+		stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS2H : 0;
+
+		/* float VS1, drive VS2 low */
+		val |= PCMCIA_C1_VS1OE_MASK;
+		val &= ~PCMCIA_C1_VS2OE_MASK;
+		pcmcia_writel(skt, val, PCMCIA_C1_REG);
+
+		/* wait for output to stabilize and read CD[12] */
+		udelay(10);
+		val = pcmcia_readl(skt, PCMCIA_C1_REG);
+		stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS1H : 0;
+		stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS1H : 0;
+
+		/* guess cardtype from all this */
+		skt->card_type = vscd_to_cardtype[stat];
+		if (!skt->card_type)
+			dev_err(&skt->socket.dev, "unsupported card type\n");
+
+		/* drive both VS pin to 0 again */
+		val &= ~(PCMCIA_C1_VS1OE_MASK | PCMCIA_C1_VS2OE_MASK);
+
+		/* enable correct logic */
+		val &= ~(PCMCIA_C1_EN_PCMCIA_MASK | PCMCIA_C1_EN_CARDBUS_MASK);
+		if (skt->card_type & CARD_PCCARD)
+			val |= PCMCIA_C1_EN_PCMCIA_MASK;
+		else
+			val |= PCMCIA_C1_EN_CARDBUS_MASK;
+
+		pcmcia_writel(skt, val, PCMCIA_C1_REG);
+	}
+	skt->card_detected = (stat & SS_DETECT) ? 1 : 0;
+
+	/* report card type/voltage */
+	if (skt->card_type & CARD_CARDBUS)
+		stat |= SS_CARDBUS;
+	if (skt->card_type & CARD_3V)
+		stat |= SS_3VCARD;
+	if (skt->card_type & CARD_XV)
+		stat |= SS_XVCARD;
+	stat |= SS_POWERON;
+
+	if (gpio_get_value(skt->pd->ready_gpio))
+		stat |= SS_READY;
+
+	return stat;
+}
+
+/*
+ * core request to get current socket status
+ */
+static int bcm63xx_pcmcia_get_status(struct pcmcia_socket *sock,
+				     unsigned int *status)
+{
+	struct bcm63xx_pcmcia_socket *skt;
+
+	skt = sock->driver_data;
+
+	spin_lock_bh(&skt->lock);
+	*status = __get_socket_status(skt);
+	spin_unlock_bh(&skt->lock);
+
+	return 0;
+}
+
+/*
+ * socket polling timer callback
+ */
+static void bcm63xx_pcmcia_poll(struct timer_list *t)
+{
+	struct bcm63xx_pcmcia_socket *skt;
+	unsigned int stat, events;
+
+	skt = timer_container_of(skt, t, timer);
+
+	spin_lock_bh(&skt->lock);
+
+	stat = __get_socket_status(skt);
+
+	/* keep only changed bits, and mask with required one from the
+	 * core */
+	events = (stat ^ skt->old_status) & skt->requested_state.csc_mask;
+	skt->old_status = stat;
+	spin_unlock_bh(&skt->lock);
+
+	if (events)
+		pcmcia_parse_events(&skt->socket, events);
+
+	mod_timer(&skt->timer,
+		  jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
+}
+
+static int bcm63xx_pcmcia_set_io_map(struct pcmcia_socket *sock,
+				     struct pccard_io_map *map)
+{
+	/* this doesn't seem to be called by pcmcia layer if static
+	 * mapping is used */
+	return 0;
+}
+
+static int bcm63xx_pcmcia_set_mem_map(struct pcmcia_socket *sock,
+				      struct pccard_mem_map *map)
+{
+	struct bcm63xx_pcmcia_socket *skt;
+	struct resource *res;
+
+	skt = sock->driver_data;
+	if (map->flags & MAP_ATTRIB)
+		res = skt->attr_res;
+	else
+		res = skt->common_res;
+
+	map->static_start = res->start + map->card_start;
+	return 0;
+}
+
+static struct pccard_operations bcm63xx_pcmcia_operations = {
+	.init			= bcm63xx_pcmcia_sock_init,
+	.suspend		= bcm63xx_pcmcia_suspend,
+	.get_status		= bcm63xx_pcmcia_get_status,
+	.set_socket		= bcm63xx_pcmcia_set_socket,
+	.set_io_map		= bcm63xx_pcmcia_set_io_map,
+	.set_mem_map		= bcm63xx_pcmcia_set_mem_map,
+};
+
+/*
+ * register pcmcia socket to core
+ */
+static int bcm63xx_drv_pcmcia_probe(struct platform_device *pdev)
+{
+	struct bcm63xx_pcmcia_socket *skt;
+	struct pcmcia_socket *sock;
+	struct resource *res;
+	unsigned int regmem_size = 0, iomem_size = 0;
+	u32 val;
+	int ret;
+	int irq;
+
+	skt = kzalloc_obj(*skt);
+	if (!skt)
+		return -ENOMEM;
+	spin_lock_init(&skt->lock);
+	sock = &skt->socket;
+	sock->driver_data = skt;
+
+	/* make sure we have all resources we need */
+	skt->common_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	skt->attr_res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+	irq = platform_get_irq(pdev, 0);
+	skt->pd = pdev->dev.platform_data;
+	if (!skt->common_res || !skt->attr_res || (irq < 0) || !skt->pd) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* remap pcmcia registers */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	regmem_size = resource_size(res);
+	if (!request_mem_region(res->start, regmem_size, "bcm63xx_pcmcia")) {
+		ret = -EINVAL;
+		goto err;
+	}
+	skt->reg_res = res;
+
+	skt->base = ioremap(res->start, regmem_size);
+	if (!skt->base) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	/* remap io registers */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
+	iomem_size = resource_size(res);
+	skt->io_base = ioremap(res->start, iomem_size);
+	if (!skt->io_base) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	/* resources are static */
+	sock->resource_ops = &pccard_static_ops;
+	sock->ops = &bcm63xx_pcmcia_operations;
+	sock->owner = THIS_MODULE;
+	sock->dev.parent = &pdev->dev;
+	sock->features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
+	sock->io_offset = (unsigned long)skt->io_base;
+	sock->pci_irq = irq;
+
+#ifdef CONFIG_CARDBUS
+	sock->cb_dev = bcm63xx_cb_dev;
+	if (bcm63xx_cb_dev)
+		sock->features |= SS_CAP_CARDBUS;
+#endif
+
+	/* assume common & attribute memory have the same size */
+	sock->map_size = resource_size(skt->common_res);
+
+	/* initialize polling timer */
+	timer_setup(&skt->timer, bcm63xx_pcmcia_poll, 0);
+
+	/* initialize  pcmcia  control register,  drive  VS[12] to  0,
+	 * leave CB IDSEL to the old  value since it is set by the PCI
+	 * layer */
+	val = pcmcia_readl(skt, PCMCIA_C1_REG);
+	val &= PCMCIA_C1_CBIDSEL_MASK;
+	val |= PCMCIA_C1_EN_PCMCIA_GPIO_MASK;
+	pcmcia_writel(skt, val, PCMCIA_C1_REG);
+
+	/*
+	 * Hardware has only one set of timings registers, not one for
+	 * each memory access type, so we configure them for the
+	 * slowest one: attribute memory.
+	 */
+	val = PCMCIA_C2_DATA16_MASK;
+	val |= 10 << PCMCIA_C2_RWCOUNT_SHIFT;
+	val |= 6 << PCMCIA_C2_INACTIVE_SHIFT;
+	val |= 3 << PCMCIA_C2_SETUP_SHIFT;
+	val |= 3 << PCMCIA_C2_HOLD_SHIFT;
+	pcmcia_writel(skt, val, PCMCIA_C2_REG);
+
+	ret = pcmcia_register_socket(sock);
+	if (ret)
+		goto err;
+
+	/* start polling socket */
+	mod_timer(&skt->timer,
+		  jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
+
+	platform_set_drvdata(pdev, skt);
+	return 0;
+
+err:
+	if (skt->io_base)
+		iounmap(skt->io_base);
+	if (skt->base)
+		iounmap(skt->base);
+	if (skt->reg_res)
+		release_mem_region(skt->reg_res->start, regmem_size);
+	kfree(skt);
+	return ret;
+}
+
+static void bcm63xx_drv_pcmcia_remove(struct platform_device *pdev)
+{
+	struct bcm63xx_pcmcia_socket *skt;
+	struct resource *res;
+
+	skt = platform_get_drvdata(pdev);
+	timer_shutdown_sync(&skt->timer);
+	iounmap(skt->base);
+	iounmap(skt->io_base);
+	res = skt->reg_res;
+	release_mem_region(res->start, resource_size(res));
+	kfree(skt);
+}
+
+struct platform_driver bcm63xx_pcmcia_driver = {
+	.probe	= bcm63xx_drv_pcmcia_probe,
+	.remove = bcm63xx_drv_pcmcia_remove,
+	.driver	= {
+		.name	= "bcm63xx_pcmcia",
+	},
+};
+
+#ifdef CONFIG_CARDBUS
+static int bcm63xx_cb_probe(struct pci_dev *dev,
+				      const struct pci_device_id *id)
+{
+	/* keep pci device */
+	bcm63xx_cb_dev = dev;
+	return platform_driver_register(&bcm63xx_pcmcia_driver);
+}
+
+static void bcm63xx_cb_exit(struct pci_dev *dev)
+{
+	platform_driver_unregister(&bcm63xx_pcmcia_driver);
+	bcm63xx_cb_dev = NULL;
+}
+
+static const struct pci_device_id bcm63xx_cb_table[] = {
+	{
+		.vendor		= PCI_VENDOR_ID_BROADCOM,
+		.device		= BCM6348_CPU_ID,
+		.subvendor	= PCI_VENDOR_ID_BROADCOM,
+		.subdevice	= PCI_ANY_ID,
+		.class		= PCI_CLASS_BRIDGE_CARDBUS << 8,
+		.class_mask	= ~0,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_BROADCOM,
+		.device		= BCM6358_CPU_ID,
+		.subvendor	= PCI_VENDOR_ID_BROADCOM,
+		.subdevice	= PCI_ANY_ID,
+		.class		= PCI_CLASS_BRIDGE_CARDBUS << 8,
+		.class_mask	= ~0,
+	},
+
+	{ },
+};
+
+MODULE_DEVICE_TABLE(pci, bcm63xx_cb_table);
+
+static struct pci_driver bcm63xx_cardbus_driver = {
+	.name		= "bcm63xx_cardbus",
+	.id_table	= bcm63xx_cb_table,
+	.probe		= bcm63xx_cb_probe,
+	.remove		= bcm63xx_cb_exit,
+};
+#endif
+
+/*
+ * if cardbus support is enabled, register our platform device after
+ * our fake cardbus bridge has been registered
+ */
+static int __init bcm63xx_pcmcia_init(void)
+{
+#ifdef CONFIG_CARDBUS
+	return pci_register_driver(&bcm63xx_cardbus_driver);
+#else
+	return platform_driver_register(&bcm63xx_pcmcia_driver);
+#endif
+}
+
+static void __exit bcm63xx_pcmcia_exit(void)
+{
+#ifdef CONFIG_CARDBUS
+	return pci_unregister_driver(&bcm63xx_cardbus_driver);
+#else
+	platform_driver_unregister(&bcm63xx_pcmcia_driver);
+#endif
+}
+
+module_init(bcm63xx_pcmcia_init);
+module_exit(bcm63xx_pcmcia_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: bcm63xx Socket Controller");

linux-7.2.3/drivers/pcmcia/bcm63xx_pcmcia.h

@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BCM63XX_PCMCIA_H_
+#define BCM63XX_PCMCIA_H_
+
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <pcmcia/ss.h>
+#include <bcm63xx_dev_pcmcia.h>
+
+/* socket polling rate in ms */
+#define BCM63XX_PCMCIA_POLL_RATE	500
+
+enum {
+	CARD_CARDBUS = (1 << 0),
+	CARD_PCCARD = (1 << 1),
+	CARD_5V = (1 << 2),
+	CARD_3V = (1 << 3),
+	CARD_XV = (1 << 4),
+	CARD_YV = (1 << 5),
+};
+
+struct bcm63xx_pcmcia_socket {
+	struct pcmcia_socket socket;
+
+	/* platform specific data */
+	struct bcm63xx_pcmcia_platform_data *pd;
+
+	/* all regs access are protected by this spinlock */
+	spinlock_t lock;
+
+	/* pcmcia registers resource */
+	struct resource *reg_res;
+
+	/* base remapped address of registers */
+	void __iomem *base;
+
+	/* whether a card is detected at the moment */
+	int card_detected;
+
+	/* type of detected card (mask of above enum) */
+	u8 card_type;
+
+	/* keep last socket status to implement event reporting */
+	unsigned int old_status;
+
+	/* backup of requested socket state */
+	socket_state_t requested_state;
+
+	/* timer used for socket status polling */
+	struct timer_list timer;
+
+	/* attribute/common memory resources */
+	struct resource *attr_res;
+	struct resource *common_res;
+	struct resource *io_res;
+
+	/* base address of io memory */
+	void __iomem *io_base;
+};
+
+#endif /* BCM63XX_PCMCIA_H_ */

linux-7.2.3/drivers/pcmcia/cardbus.c

@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cardbus.c -- 16-bit PCMCIA core support
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * (C) 1999		David A. Hinds
+ */
+
+/*
+ * Cardbus handling has been re-written to be more of a PCI bridge thing,
+ * and the PCI code basically does all the resource handling.
+ *
+ *		Linus, Jan 2000
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+
+#include "cs_internal.h"
+
+static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
+{
+	struct pci_dev *dev;
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+		u8 irq_pin;
+
+		/*
+		 * Since there is only one interrupt available to
+		 * CardBus devices, all devices downstream of this
+		 * device must be using this IRQ.
+		 */
+		pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq_pin);
+		if (irq_pin) {
+			dev->irq = irq;
+			pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+		}
+
+		/*
+		 * Some controllers transfer very slowly with 0 CLS.
+		 * Configure it.  This may fail as CLS configuration
+		 * is mandatory only for MWI.
+		 */
+		pci_set_cacheline_size(dev);
+
+		if (dev->subordinate)
+			cardbus_config_irq_and_cls(dev->subordinate, irq);
+	}
+}
+
+/**
+ * cb_alloc() - add CardBus device
+ * @s:		the pcmcia_socket where the CardBus device is located
+ *
+ * cb_alloc() allocates the kernel data structures for a Cardbus device
+ * and handles the lowest level PCI device setup issues.
+ */
+int __ref cb_alloc(struct pcmcia_socket *s)
+{
+	struct pci_bus *bus = s->cb_dev->subordinate;
+	struct pci_dev *dev;
+	unsigned int max, pass;
+
+	pci_lock_rescan_remove();
+
+	s->functions = pci_scan_slot(bus, PCI_DEVFN(0, 0));
+
+	max = bus->busn_res.start;
+	for (pass = 0; pass < 2; pass++)
+		for_each_pci_bridge(dev, bus)
+			max = pci_scan_bridge(bus, dev, max, pass);
+
+	/*
+	 * Size all resources below the CardBus controller.
+	 */
+	pci_bus_size_bridges(bus);
+	pci_bus_assign_resources(bus);
+	cardbus_config_irq_and_cls(bus, s->pci_irq);
+
+	/* socket specific tune function */
+	if (s->tune_bridge)
+		s->tune_bridge(s, bus);
+
+	pci_bus_add_devices(bus);
+
+	pci_unlock_rescan_remove();
+	return 0;
+}
+
+/**
+ * cb_free() - remove CardBus device
+ * @s:		the pcmcia_socket where the CardBus device was located
+ *
+ * cb_free() handles the lowest level PCI device cleanup.
+ */
+void cb_free(struct pcmcia_socket *s)
+{
+	struct pci_dev *bridge, *dev, *tmp;
+	struct pci_bus *bus;
+
+	bridge = s->cb_dev;
+	if (!bridge)
+		return;
+
+	bus = bridge->subordinate;
+	if (!bus)
+		return;
+
+	pci_lock_rescan_remove();
+
+	list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list)
+		pci_stop_and_remove_bus_device(dev);
+
+	pci_unlock_rescan_remove();
+}

linux-7.2.3/drivers/pcmcia/cirrus.h

@@ -0,0 +1,147 @@
+/*
+ * cirrus.h 1.4 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_CIRRUS_H
+#define _LINUX_CIRRUS_H
+
+#define PD67_MISC_CTL_1		0x16	/* Misc control 1 */
+#define PD67_FIFO_CTL		0x17	/* FIFO control */
+#define PD67_MISC_CTL_2		0x1E	/* Misc control 2 */
+#define PD67_CHIP_INFO		0x1f	/* Chip information */
+#define PD67_ATA_CTL		0x026	/* 6730: ATA control */
+#define PD67_EXT_INDEX		0x2e	/* Extension index */
+#define PD67_EXT_DATA		0x2f	/* Extension data */
+
+/* PD6722 extension registers -- indexed in PD67_EXT_INDEX */
+#define PD67_DATA_MASK0		0x01	/* Data mask 0 */
+#define PD67_DATA_MASK1		0x02	/* Data mask 1 */
+#define PD67_DMA_CTL		0x03	/* DMA control */
+
+/* PD6730 extension registers -- indexed in PD67_EXT_INDEX */
+#define PD67_EXT_CTL_1		0x03	/* Extension control 1 */
+#define PD67_MEM_PAGE(n)	((n)+5)	/* PCI window bits 31:24 */
+#define PD67_EXTERN_DATA	0x0a
+#define PD67_MISC_CTL_3		0x25
+#define PD67_SMB_PWR_CTL	0x26
+
+/* I/O window address offset */
+#define PD67_IO_OFF(w)		(0x36+((w)<<1))
+
+/* Timing register sets */
+#define PD67_TIME_SETUP(n)	(0x3a + 3*(n))
+#define PD67_TIME_CMD(n)	(0x3b + 3*(n))
+#define PD67_TIME_RECOV(n)	(0x3c + 3*(n))
+
+/* Flags for PD67_MISC_CTL_1 */
+#define PD67_MC1_5V_DET		0x01	/* 5v detect */
+#define PD67_MC1_MEDIA_ENA	0x01	/* 6730: Multimedia enable */
+#define PD67_MC1_VCC_3V		0x02	/* 3.3v Vcc */
+#define PD67_MC1_PULSE_MGMT	0x04
+#define PD67_MC1_PULSE_IRQ	0x08
+#define PD67_MC1_SPKR_ENA	0x10
+#define PD67_MC1_INPACK_ENA	0x80
+
+/* Flags for PD67_FIFO_CTL */
+#define PD67_FIFO_EMPTY		0x80
+
+/* Flags for PD67_MISC_CTL_2 */
+#define PD67_MC2_FREQ_BYPASS	0x01
+#define PD67_MC2_DYNAMIC_MODE	0x02
+#define PD67_MC2_SUSPEND	0x04
+#define PD67_MC2_5V_CORE	0x08
+#define PD67_MC2_LED_ENA	0x10	/* IRQ 12 is LED enable */
+#define PD67_MC2_FAST_PCI	0x10	/* 6729: PCI bus > 25 MHz */
+#define PD67_MC2_3STATE_BIT7	0x20	/* Floppy change bit */
+#define PD67_MC2_DMA_MODE	0x40
+#define PD67_MC2_IRQ15_RI	0x80	/* IRQ 15 is ring enable */
+
+/* Flags for PD67_CHIP_INFO */
+#define PD67_INFO_SLOTS		0x20	/* 0 = 1 slot, 1 = 2 slots */
+#define PD67_INFO_CHIP_ID	0xc0
+#define PD67_INFO_REV		0x1c
+
+/* Fields in PD67_TIME_* registers */
+#define PD67_TIME_SCALE		0xc0
+#define PD67_TIME_SCALE_1	0x00
+#define PD67_TIME_SCALE_16	0x40
+#define PD67_TIME_SCALE_256	0x80
+#define PD67_TIME_SCALE_4096	0xc0
+#define PD67_TIME_MULT		0x3f
+
+/* Fields in PD67_DMA_CTL */
+#define PD67_DMA_MODE		0xc0
+#define PD67_DMA_OFF		0x00
+#define PD67_DMA_DREQ_INPACK	0x40
+#define PD67_DMA_DREQ_WP	0x80
+#define PD67_DMA_DREQ_BVD2	0xc0
+#define PD67_DMA_PULLUP		0x20	/* Disable socket pullups? */
+
+/* Fields in PD67_EXT_CTL_1 */
+#define PD67_EC1_VCC_PWR_LOCK	0x01
+#define PD67_EC1_AUTO_PWR_CLEAR	0x02
+#define PD67_EC1_LED_ENA	0x04
+#define PD67_EC1_INV_CARD_IRQ	0x08
+#define PD67_EC1_INV_MGMT_IRQ	0x10
+#define PD67_EC1_PULLUP_CTL	0x20
+
+/* Fields in PD67_MISC_CTL_3 */
+#define PD67_MC3_IRQ_MASK	0x03
+#define PD67_MC3_IRQ_PCPCI	0x00
+#define PD67_MC3_IRQ_EXTERN	0x01
+#define PD67_MC3_IRQ_PCIWAY	0x02
+#define PD67_MC3_IRQ_PCI	0x03
+#define PD67_MC3_PWR_MASK	0x0c
+#define PD67_MC3_PWR_SERIAL	0x00
+#define PD67_MC3_PWR_TI2202	0x08
+#define PD67_MC3_PWR_SMB	0x0c
+
+/* Register definitions for Cirrus PD6832 PCI-to-CardBus bridge */
+
+/* PD6832 extension registers -- indexed in PD67_EXT_INDEX */
+#define PD68_EXT_CTL_2			0x0b
+#define PD68_PCI_SPACE			0x22
+#define PD68_PCCARD_SPACE		0x23
+#define PD68_WINDOW_TYPE		0x24
+#define PD68_EXT_CSC			0x2e
+#define PD68_MISC_CTL_4			0x2f
+#define PD68_MISC_CTL_5			0x30
+#define PD68_MISC_CTL_6			0x31
+
+/* Extra flags in PD67_MISC_CTL_3 */
+#define PD68_MC3_HW_SUSP		0x10
+#define PD68_MC3_MM_EXPAND		0x40
+#define PD68_MC3_MM_ARM			0x80
+
+/* Bridge Control Register */
+#define  PD6832_BCR_MGMT_IRQ_ENA	0x0800
+
+/* Socket Number Register */
+#define PD6832_SOCKET_NUMBER		0x004c	/* 8 bit */
+
+#endif /* _LINUX_CIRRUS_H */

linux-7.2.3/drivers/pcmcia/cs.c

@@ -0,0 +1,902 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cs.c -- Kernel Card Services - core services
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * (C) 1999		David A. Hinds
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/major.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/device.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <asm/irq.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+#include "cs_internal.h"
+
+
+/* Module parameters */
+
+MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
+MODULE_DESCRIPTION("Linux Kernel Card Services");
+MODULE_LICENSE("GPL");
+
+#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
+
+INT_MODULE_PARM(setup_delay,	10);		/* centiseconds */
+INT_MODULE_PARM(resume_delay,	20);		/* centiseconds */
+INT_MODULE_PARM(shutdown_delay,	3);		/* centiseconds */
+INT_MODULE_PARM(vcc_settle,	40);		/* centiseconds */
+INT_MODULE_PARM(reset_time,	10);		/* usecs */
+INT_MODULE_PARM(unreset_delay,	10);		/* centiseconds */
+INT_MODULE_PARM(unreset_check,	10);		/* centiseconds */
+INT_MODULE_PARM(unreset_limit,	30);		/* unreset_check's */
+
+/* Access speed for attribute memory windows */
+INT_MODULE_PARM(cis_speed,	300);		/* ns */
+
+
+socket_state_t dead_socket = {
+	.csc_mask	= SS_DETECT,
+};
+EXPORT_SYMBOL(dead_socket);
+
+
+/* List of all sockets, protected by a rwsem */
+LIST_HEAD(pcmcia_socket_list);
+EXPORT_SYMBOL(pcmcia_socket_list);
+
+DECLARE_RWSEM(pcmcia_socket_list_rwsem);
+EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
+
+
+struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt)
+{
+	struct device *dev = get_device(&skt->dev);
+	if (!dev)
+		return NULL;
+	return dev_get_drvdata(dev);
+}
+EXPORT_SYMBOL(pcmcia_get_socket);
+
+
+void pcmcia_put_socket(struct pcmcia_socket *skt)
+{
+	put_device(&skt->dev);
+}
+EXPORT_SYMBOL(pcmcia_put_socket);
+
+
+static void pcmcia_release_socket(struct device *dev)
+{
+	struct pcmcia_socket *socket = dev_get_drvdata(dev);
+
+	complete(&socket->socket_released);
+}
+
+static int pccardd(void *__skt);
+
+/**
+ * pcmcia_register_socket - add a new pcmcia socket device
+ * @socket: the &socket to register
+ */
+int pcmcia_register_socket(struct pcmcia_socket *socket)
+{
+	struct task_struct *tsk;
+	int ret;
+
+	if (!socket || !socket->ops || !socket->dev.parent || !socket->resource_ops)
+		return -EINVAL;
+
+	dev_dbg(&socket->dev, "pcmcia_register_socket(0x%p)\n", socket->ops);
+
+	/* try to obtain a socket number [yes, it gets ugly if we
+	 * register more than 2^sizeof(unsigned int) pcmcia
+	 * sockets... but the socket number is deprecated
+	 * anyways, so I don't care] */
+	down_write(&pcmcia_socket_list_rwsem);
+	if (list_empty(&pcmcia_socket_list))
+		socket->sock = 0;
+	else {
+		unsigned int found, i = 1;
+		struct pcmcia_socket *tmp;
+		do {
+			found = 1;
+			list_for_each_entry(tmp, &pcmcia_socket_list, socket_list) {
+				if (tmp->sock == i)
+					found = 0;
+			}
+			i++;
+		} while (!found);
+		socket->sock = i - 1;
+	}
+	list_add_tail(&socket->socket_list, &pcmcia_socket_list);
+	up_write(&pcmcia_socket_list_rwsem);
+
+#ifndef CONFIG_CARDBUS
+	/*
+	 * If we do not support Cardbus, ensure that
+	 * the Cardbus socket capability is disabled.
+	 */
+	socket->features &= ~SS_CAP_CARDBUS;
+#endif
+
+	/* set proper values in socket->dev */
+	dev_set_drvdata(&socket->dev, socket);
+	socket->dev.class = &pcmcia_socket_class;
+	dev_set_name(&socket->dev, "pcmcia_socket%u", socket->sock);
+
+	/* base address = 0, map = 0 */
+	socket->cis_mem.flags = 0;
+	socket->cis_mem.speed = cis_speed;
+
+	INIT_LIST_HEAD(&socket->cis_cache);
+
+	init_completion(&socket->socket_released);
+	init_completion(&socket->thread_done);
+	mutex_init(&socket->skt_mutex);
+	mutex_init(&socket->ops_mutex);
+	spin_lock_init(&socket->thread_lock);
+
+	if (socket->resource_ops->init) {
+		mutex_lock(&socket->ops_mutex);
+		ret = socket->resource_ops->init(socket);
+		mutex_unlock(&socket->ops_mutex);
+		if (ret)
+			goto err;
+	}
+
+	tsk = kthread_run(pccardd, socket, "pccardd");
+	if (IS_ERR(tsk)) {
+		ret = PTR_ERR(tsk);
+		goto err;
+	}
+
+	wait_for_completion(&socket->thread_done);
+	if (!socket->thread) {
+		dev_warn(&socket->dev,
+			 "PCMCIA: warning: socket thread did not start\n");
+		return -EIO;
+	}
+
+	pcmcia_parse_events(socket, SS_DETECT);
+
+	/*
+	 * Let's try to get the PCMCIA module for 16-bit PCMCIA support.
+	 * If it fails, it doesn't matter -- we still have 32-bit CardBus
+	 * support to offer, so this is not a failure mode.
+	 */
+	request_module_nowait("pcmcia");
+
+	return 0;
+
+ err:
+	down_write(&pcmcia_socket_list_rwsem);
+	list_del(&socket->socket_list);
+	up_write(&pcmcia_socket_list_rwsem);
+	return ret;
+} /* pcmcia_register_socket */
+EXPORT_SYMBOL(pcmcia_register_socket);
+
+
+/**
+ * pcmcia_unregister_socket - remove a pcmcia socket device
+ * @socket: the &socket to unregister
+ */
+void pcmcia_unregister_socket(struct pcmcia_socket *socket)
+{
+	if (!socket)
+		return;
+
+	dev_dbg(&socket->dev, "pcmcia_unregister_socket(0x%p)\n", socket->ops);
+
+	if (socket->thread)
+		kthread_stop(socket->thread);
+
+	/* remove from our own list */
+	down_write(&pcmcia_socket_list_rwsem);
+	list_del(&socket->socket_list);
+	up_write(&pcmcia_socket_list_rwsem);
+
+	/* wait for sysfs to drop all references */
+	if (socket->resource_ops->exit) {
+		mutex_lock(&socket->ops_mutex);
+		socket->resource_ops->exit(socket);
+		mutex_unlock(&socket->ops_mutex);
+	}
+	wait_for_completion(&socket->socket_released);
+} /* pcmcia_unregister_socket */
+EXPORT_SYMBOL(pcmcia_unregister_socket);
+
+
+static int socket_reset(struct pcmcia_socket *skt)
+{
+	int status, i;
+
+	dev_dbg(&skt->dev, "reset\n");
+
+	skt->socket.flags |= SS_OUTPUT_ENA | SS_RESET;
+	skt->ops->set_socket(skt, &skt->socket);
+	udelay((long)reset_time);
+
+	skt->socket.flags &= ~SS_RESET;
+	skt->ops->set_socket(skt, &skt->socket);
+
+	msleep(unreset_delay * 10);
+	for (i = 0; i < unreset_limit; i++) {
+		skt->ops->get_status(skt, &status);
+
+		if (!(status & SS_DETECT))
+			return -ENODEV;
+
+		if (status & SS_READY)
+			return 0;
+
+		msleep(unreset_check * 10);
+	}
+
+	dev_err(&skt->dev, "time out after reset\n");
+	return -ETIMEDOUT;
+}
+
+/*
+ * socket_setup() and socket_shutdown() are called by the main event handler
+ * when card insertion and removal events are received.
+ * socket_setup() turns on socket power and resets the socket, in two stages.
+ * socket_shutdown() unconfigures a socket and turns off socket power.
+ */
+static void socket_shutdown(struct pcmcia_socket *s)
+{
+	int status;
+
+	dev_dbg(&s->dev, "shutdown\n");
+
+	if (s->callback)
+		s->callback->remove(s);
+
+	mutex_lock(&s->ops_mutex);
+	s->state &= SOCKET_INUSE | SOCKET_PRESENT;
+	msleep(shutdown_delay * 10);
+	s->state &= SOCKET_INUSE;
+
+	/* Blank out the socket state */
+	s->socket = dead_socket;
+	s->ops->init(s);
+	s->ops->set_socket(s, &s->socket);
+	s->lock_count = 0;
+	kfree(s->fake_cis);
+	s->fake_cis = NULL;
+	s->functions = 0;
+
+	/* From here on we can be sure that only we (that is, the
+	 * pccardd thread) accesses this socket, and all (16-bit)
+	 * PCMCIA interactions are gone. Therefore, release
+	 * ops_mutex so that we don't get a sysfs-related lockdep
+	 * warning.
+	 */
+	mutex_unlock(&s->ops_mutex);
+
+#ifdef CONFIG_CARDBUS
+	cb_free(s);
+#endif
+
+	/* give socket some time to power down */
+	msleep(100);
+
+	s->ops->get_status(s, &status);
+	if (status & SS_POWERON) {
+		dev_err(&s->dev,
+			"*** DANGER *** unable to remove socket power\n");
+	}
+
+	s->state &= ~SOCKET_INUSE;
+}
+
+static int socket_setup(struct pcmcia_socket *skt, int initial_delay)
+{
+	int status, i;
+
+	dev_dbg(&skt->dev, "setup\n");
+
+	skt->ops->get_status(skt, &status);
+	if (!(status & SS_DETECT))
+		return -ENODEV;
+
+	msleep(initial_delay * 10);
+
+	for (i = 0; i < 100; i++) {
+		skt->ops->get_status(skt, &status);
+		if (!(status & SS_DETECT))
+			return -ENODEV;
+
+		if (!(status & SS_PENDING))
+			break;
+
+		msleep(100);
+	}
+
+	if (status & SS_PENDING) {
+		dev_err(&skt->dev, "voltage interrogation timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	if (status & SS_CARDBUS) {
+		if (!(skt->features & SS_CAP_CARDBUS)) {
+			dev_err(&skt->dev, "cardbus cards are not supported\n");
+			return -EINVAL;
+		}
+		skt->state |= SOCKET_CARDBUS;
+	} else
+		skt->state &= ~SOCKET_CARDBUS;
+
+	/*
+	 * Decode the card voltage requirements, and apply power to the card.
+	 */
+	if (status & SS_3VCARD)
+		skt->socket.Vcc = skt->socket.Vpp = 33;
+	else if (!(status & SS_XVCARD))
+		skt->socket.Vcc = skt->socket.Vpp = 50;
+	else {
+		dev_err(&skt->dev, "unsupported voltage key\n");
+		return -EIO;
+	}
+
+	if (skt->power_hook)
+		skt->power_hook(skt, HOOK_POWER_PRE);
+
+	skt->socket.flags = 0;
+	skt->ops->set_socket(skt, &skt->socket);
+
+	/*
+	 * Wait "vcc_settle" for the supply to stabilise.
+	 */
+	msleep(vcc_settle * 10);
+
+	skt->ops->get_status(skt, &status);
+	if (!(status & SS_POWERON)) {
+		dev_err(&skt->dev, "unable to apply power\n");
+		return -EIO;
+	}
+
+	status = socket_reset(skt);
+
+	if (skt->power_hook)
+		skt->power_hook(skt, HOOK_POWER_POST);
+
+	return status;
+}
+
+/*
+ * Handle card insertion.  Setup the socket, reset the card,
+ * and then tell the rest of PCMCIA that a card is present.
+ */
+static int socket_insert(struct pcmcia_socket *skt)
+{
+	int ret;
+
+	dev_dbg(&skt->dev, "insert\n");
+
+	mutex_lock(&skt->ops_mutex);
+	if (skt->state & SOCKET_INUSE) {
+		mutex_unlock(&skt->ops_mutex);
+		return -EINVAL;
+	}
+	skt->state |= SOCKET_INUSE;
+
+	ret = socket_setup(skt, setup_delay);
+	if (ret == 0) {
+		skt->state |= SOCKET_PRESENT;
+
+		dev_notice(&skt->dev, "pccard: %s card inserted into slot %d\n",
+			   (skt->state & SOCKET_CARDBUS) ? "CardBus" : "PCMCIA",
+			   skt->sock);
+
+#ifdef CONFIG_CARDBUS
+		if (skt->state & SOCKET_CARDBUS) {
+			cb_alloc(skt);
+			skt->state |= SOCKET_CARDBUS_CONFIG;
+		}
+#endif
+		dev_dbg(&skt->dev, "insert done\n");
+		mutex_unlock(&skt->ops_mutex);
+
+		if (!(skt->state & SOCKET_CARDBUS) && (skt->callback))
+			skt->callback->add(skt);
+	} else {
+		mutex_unlock(&skt->ops_mutex);
+		socket_shutdown(skt);
+	}
+
+	return ret;
+}
+
+static int socket_suspend(struct pcmcia_socket *skt)
+{
+	if ((skt->state & SOCKET_SUSPEND) && !(skt->state & SOCKET_IN_RESUME))
+		return -EBUSY;
+
+	mutex_lock(&skt->ops_mutex);
+	/* store state on first suspend, but not after spurious wakeups */
+	if (!(skt->state & SOCKET_IN_RESUME))
+		skt->suspended_state = skt->state;
+
+	skt->socket = dead_socket;
+	skt->ops->set_socket(skt, &skt->socket);
+	if (skt->ops->suspend)
+		skt->ops->suspend(skt);
+	skt->state |= SOCKET_SUSPEND;
+	skt->state &= ~SOCKET_IN_RESUME;
+	mutex_unlock(&skt->ops_mutex);
+	return 0;
+}
+
+static int socket_early_resume(struct pcmcia_socket *skt)
+{
+	mutex_lock(&skt->ops_mutex);
+	skt->socket = dead_socket;
+	skt->ops->init(skt);
+	skt->ops->set_socket(skt, &skt->socket);
+	if (skt->state & SOCKET_PRESENT)
+		skt->resume_status = socket_setup(skt, resume_delay);
+	skt->state |= SOCKET_IN_RESUME;
+	mutex_unlock(&skt->ops_mutex);
+	return 0;
+}
+
+static int socket_late_resume(struct pcmcia_socket *skt)
+{
+	int ret = 0;
+
+	mutex_lock(&skt->ops_mutex);
+	skt->state &= ~(SOCKET_SUSPEND | SOCKET_IN_RESUME);
+	mutex_unlock(&skt->ops_mutex);
+
+	if (!(skt->state & SOCKET_PRESENT)) {
+		ret = socket_insert(skt);
+		if (ret == -ENODEV)
+			ret = 0;
+		return ret;
+	}
+
+	if (skt->resume_status) {
+		socket_shutdown(skt);
+		return 0;
+	}
+
+	if (skt->suspended_state != skt->state) {
+		dev_dbg(&skt->dev,
+			"suspend state 0x%x != resume state 0x%x\n",
+			skt->suspended_state, skt->state);
+
+		socket_shutdown(skt);
+		return socket_insert(skt);
+	}
+
+	if (!(skt->state & SOCKET_CARDBUS) && (skt->callback))
+		ret = skt->callback->early_resume(skt);
+	return ret;
+}
+
+/*
+ * Finalize the resume. In case of a cardbus socket, we have
+ * to rebind the devices as we can't be certain that it has been
+ * replaced, or not.
+ */
+static int socket_complete_resume(struct pcmcia_socket *skt)
+{
+	int ret = 0;
+#ifdef CONFIG_CARDBUS
+	if (skt->state & SOCKET_CARDBUS) {
+		/* We can't be sure the CardBus card is the same
+		 * as the one previously inserted. Therefore, remove
+		 * and re-add... */
+		cb_free(skt);
+		ret = cb_alloc(skt);
+		if (ret)
+			cb_free(skt);
+	}
+#endif
+	return ret;
+}
+
+/*
+ * Resume a socket.  If a card is present, verify its CIS against
+ * our cached copy.  If they are different, the card has been
+ * replaced, and we need to tell the drivers.
+ */
+static int socket_resume(struct pcmcia_socket *skt)
+{
+	int err;
+	if (!(skt->state & SOCKET_SUSPEND))
+		return -EBUSY;
+
+	socket_early_resume(skt);
+	err = socket_late_resume(skt);
+	if (!err)
+		err = socket_complete_resume(skt);
+	return err;
+}
+
+static void socket_remove(struct pcmcia_socket *skt)
+{
+	dev_notice(&skt->dev, "pccard: card ejected from slot %d\n", skt->sock);
+	socket_shutdown(skt);
+}
+
+/*
+ * Process a socket card detect status change.
+ *
+ * If we don't have a card already present, delay the detect event for
+ * about 20ms (to be on the safe side) before reading the socket status.
+ *
+ * Some i82365-based systems send multiple SS_DETECT events during card
+ * insertion, and the "card present" status bit seems to bounce.  This
+ * will probably be true with GPIO-based card detection systems after
+ * the product has aged.
+ */
+static void socket_detect_change(struct pcmcia_socket *skt)
+{
+	if (!(skt->state & SOCKET_SUSPEND)) {
+		int status;
+
+		if (!(skt->state & SOCKET_PRESENT))
+			msleep(20);
+
+		skt->ops->get_status(skt, &status);
+		if ((skt->state & SOCKET_PRESENT) &&
+		     !(status & SS_DETECT))
+			socket_remove(skt);
+		if (!(skt->state & SOCKET_PRESENT) &&
+		    (status & SS_DETECT))
+			socket_insert(skt);
+	}
+}
+
+static int pccardd(void *__skt)
+{
+	struct pcmcia_socket *skt = __skt;
+	int ret;
+
+	skt->thread = current;
+	skt->socket = dead_socket;
+	skt->ops->init(skt);
+	skt->ops->set_socket(skt, &skt->socket);
+
+	/* register with the device core */
+	ret = device_register(&skt->dev);
+	if (ret) {
+		dev_warn(&skt->dev, "PCMCIA: unable to register socket\n");
+		skt->thread = NULL;
+		complete(&skt->thread_done);
+		put_device(&skt->dev);
+		return 0;
+	}
+	ret = pccard_sysfs_add_socket(&skt->dev);
+	if (ret)
+		dev_warn(&skt->dev, "err %d adding socket attributes\n", ret);
+
+	complete(&skt->thread_done);
+
+	/* wait for userspace to catch up */
+	msleep(250);
+
+	set_freezable();
+	for (;;) {
+		unsigned long flags;
+		unsigned int events;
+		unsigned int sysfs_events;
+
+		spin_lock_irqsave(&skt->thread_lock, flags);
+		events = skt->thread_events;
+		skt->thread_events = 0;
+		sysfs_events = skt->sysfs_events;
+		skt->sysfs_events = 0;
+		spin_unlock_irqrestore(&skt->thread_lock, flags);
+
+		mutex_lock(&skt->skt_mutex);
+		if (events & SS_DETECT)
+			socket_detect_change(skt);
+
+		if (sysfs_events) {
+			if (sysfs_events & PCMCIA_UEVENT_EJECT)
+				socket_remove(skt);
+			if (sysfs_events & PCMCIA_UEVENT_INSERT)
+				socket_insert(skt);
+			if ((sysfs_events & PCMCIA_UEVENT_SUSPEND) &&
+				!(skt->state & SOCKET_CARDBUS)) {
+				if (skt->callback)
+					ret = skt->callback->suspend(skt);
+				else
+					ret = 0;
+				if (!ret) {
+					socket_suspend(skt);
+					msleep(100);
+				}
+			}
+			if ((sysfs_events & PCMCIA_UEVENT_RESUME) &&
+				!(skt->state & SOCKET_CARDBUS)) {
+				ret = socket_resume(skt);
+				if (!ret && skt->callback)
+					skt->callback->resume(skt);
+			}
+			if ((sysfs_events & PCMCIA_UEVENT_REQUERY) &&
+				!(skt->state & SOCKET_CARDBUS)) {
+				if (!ret && skt->callback)
+					skt->callback->requery(skt);
+			}
+		}
+		mutex_unlock(&skt->skt_mutex);
+
+		if (events || sysfs_events)
+			continue;
+
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (kthread_should_stop())
+			break;
+
+		schedule();
+
+		try_to_freeze();
+	}
+	/* make sure we are running before we exit */
+	__set_current_state(TASK_RUNNING);
+
+	/* shut down socket, if a device is still present */
+	if (skt->state & SOCKET_PRESENT) {
+		mutex_lock(&skt->skt_mutex);
+		socket_remove(skt);
+		mutex_unlock(&skt->skt_mutex);
+	}
+
+	/* remove from the device core */
+	pccard_sysfs_remove_socket(&skt->dev);
+	device_unregister(&skt->dev);
+
+	return 0;
+}
+
+/*
+ * Yenta (at least) probes interrupts before registering the socket and
+ * starting the handler thread.
+ */
+void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
+{
+	unsigned long flags;
+	dev_dbg(&s->dev, "parse_events: events %08x\n", events);
+	if (s->thread) {
+		spin_lock_irqsave(&s->thread_lock, flags);
+		s->thread_events |= events;
+		spin_unlock_irqrestore(&s->thread_lock, flags);
+
+		wake_up_process(s->thread);
+	}
+} /* pcmcia_parse_events */
+EXPORT_SYMBOL(pcmcia_parse_events);
+
+/**
+ * pcmcia_parse_uevents() - tell pccardd to issue manual commands
+ * @s:		the PCMCIA socket we wan't to command
+ * @events:	events to pass to pccardd
+ *
+ * userspace-issued insert, eject, suspend and resume commands must be
+ * handled by pccardd to avoid any sysfs-related deadlocks. Valid events
+ * are PCMCIA_UEVENT_EJECT (for eject), PCMCIA_UEVENT__INSERT (for insert),
+ * PCMCIA_UEVENT_RESUME (for resume), PCMCIA_UEVENT_SUSPEND (for suspend)
+ * and PCMCIA_UEVENT_REQUERY (for re-querying the PCMCIA card).
+ */
+void pcmcia_parse_uevents(struct pcmcia_socket *s, u_int events)
+{
+	unsigned long flags;
+	dev_dbg(&s->dev, "parse_uevents: events %08x\n", events);
+	if (s->thread) {
+		spin_lock_irqsave(&s->thread_lock, flags);
+		s->sysfs_events |= events;
+		spin_unlock_irqrestore(&s->thread_lock, flags);
+
+		wake_up_process(s->thread);
+	}
+}
+EXPORT_SYMBOL(pcmcia_parse_uevents);
+
+
+/* register pcmcia_callback */
+int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c)
+{
+	int ret = 0;
+
+	/* s->skt_mutex also protects s->callback */
+	mutex_lock(&s->skt_mutex);
+
+	if (c) {
+		/* registration */
+		if (s->callback) {
+			ret = -EBUSY;
+			goto err;
+		}
+
+		s->callback = c;
+
+		if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT)
+			s->callback->add(s);
+	} else
+		s->callback = NULL;
+ err:
+	mutex_unlock(&s->skt_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL(pccard_register_pcmcia);
+
+
+/* I'm not sure which "reset" function this is supposed to use,
+ * but for now, it uses the low-level interface's reset, not the
+ * CIS register.
+ */
+
+int pcmcia_reset_card(struct pcmcia_socket *skt)
+{
+	int ret;
+
+	dev_dbg(&skt->dev, "resetting socket\n");
+
+	mutex_lock(&skt->skt_mutex);
+	do {
+		if (!(skt->state & SOCKET_PRESENT)) {
+			dev_dbg(&skt->dev, "can't reset, not present\n");
+			ret = -ENODEV;
+			break;
+		}
+		if (skt->state & SOCKET_SUSPEND) {
+			dev_dbg(&skt->dev, "can't reset, suspended\n");
+			ret = -EBUSY;
+			break;
+		}
+		if (skt->state & SOCKET_CARDBUS) {
+			dev_dbg(&skt->dev, "can't reset, is cardbus\n");
+			ret = -EPERM;
+			break;
+		}
+
+		if (skt->callback)
+			skt->callback->suspend(skt);
+		mutex_lock(&skt->ops_mutex);
+		ret = socket_reset(skt);
+		mutex_unlock(&skt->ops_mutex);
+		if ((ret == 0) && (skt->callback))
+			skt->callback->resume(skt);
+
+		ret = 0;
+	} while (0);
+	mutex_unlock(&skt->skt_mutex);
+
+	return ret;
+} /* reset_card */
+EXPORT_SYMBOL(pcmcia_reset_card);
+
+
+static int pcmcia_socket_uevent(const struct device *dev,
+				struct kobj_uevent_env *env)
+{
+	const struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
+
+	if (add_uevent_var(env, "SOCKET_NO=%u", s->sock))
+		return -ENOMEM;
+
+	return 0;
+}
+
+
+static struct completion pcmcia_unload;
+
+static void pcmcia_release_socket_class(const struct class *data)
+{
+	complete(&pcmcia_unload);
+}
+
+
+#ifdef CONFIG_PM
+
+static int __pcmcia_pm_op(struct device *dev,
+			  int (*callback) (struct pcmcia_socket *skt))
+{
+	struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
+	int ret;
+
+	mutex_lock(&s->skt_mutex);
+	ret = callback(s);
+	mutex_unlock(&s->skt_mutex);
+
+	return ret;
+}
+
+static int pcmcia_socket_dev_suspend_noirq(struct device *dev)
+{
+	return __pcmcia_pm_op(dev, socket_suspend);
+}
+
+static int pcmcia_socket_dev_resume_noirq(struct device *dev)
+{
+	return __pcmcia_pm_op(dev, socket_early_resume);
+}
+
+static int __used pcmcia_socket_dev_resume(struct device *dev)
+{
+	return __pcmcia_pm_op(dev, socket_late_resume);
+}
+
+static void __used pcmcia_socket_dev_complete(struct device *dev)
+{
+	WARN(__pcmcia_pm_op(dev, socket_complete_resume),
+		"failed to complete resume");
+}
+
+static const struct dev_pm_ops pcmcia_socket_pm_ops = {
+	/* dev_resume may be called with IRQs enabled */
+	SET_SYSTEM_SLEEP_PM_OPS(NULL,
+				pcmcia_socket_dev_resume)
+
+	/* late suspend must be called with IRQs disabled */
+	.suspend_noirq = pcmcia_socket_dev_suspend_noirq,
+	.freeze_noirq = pcmcia_socket_dev_suspend_noirq,
+	.poweroff_noirq = pcmcia_socket_dev_suspend_noirq,
+
+	/* early resume must be called with IRQs disabled */
+	.resume_noirq = pcmcia_socket_dev_resume_noirq,
+	.thaw_noirq = pcmcia_socket_dev_resume_noirq,
+	.restore_noirq = pcmcia_socket_dev_resume_noirq,
+	.complete = pcmcia_socket_dev_complete,
+};
+
+#define PCMCIA_SOCKET_CLASS_PM_OPS (&pcmcia_socket_pm_ops)
+
+#else /* CONFIG_PM */
+
+#define PCMCIA_SOCKET_CLASS_PM_OPS NULL
+
+#endif /* CONFIG_PM */
+
+const struct class pcmcia_socket_class = {
+	.name = "pcmcia_socket",
+	.dev_uevent = pcmcia_socket_uevent,
+	.dev_release = pcmcia_release_socket,
+	.class_release = pcmcia_release_socket_class,
+	.pm = PCMCIA_SOCKET_CLASS_PM_OPS,
+};
+EXPORT_SYMBOL(pcmcia_socket_class);
+
+
+static int __init init_pcmcia_cs(void)
+{
+	init_completion(&pcmcia_unload);
+	return class_register(&pcmcia_socket_class);
+}
+
+static void __exit exit_pcmcia_cs(void)
+{
+	class_unregister(&pcmcia_socket_class);
+	wait_for_completion(&pcmcia_unload);
+}
+
+subsys_initcall(init_pcmcia_cs);
+module_exit(exit_pcmcia_cs);
+

linux-7.2.3/drivers/pcmcia/cs_internal.h

@@ -0,0 +1,174 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * cs_internal.h -- definitions internal to the PCMCIA core modules
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * (C) 1999		David A. Hinds
+ * (C) 2003 - 2010	Dominik Brodowski
+ *
+ * This file contains definitions _only_ needed by the PCMCIA core modules.
+ * It must not be included by PCMCIA socket drivers or by PCMCIA device
+ * drivers.
+ */
+
+#ifndef _LINUX_CS_INTERNAL_H
+#define _LINUX_CS_INTERNAL_H
+
+#include <linux/kref.h>
+
+/* Flags in client state */
+#define CLIENT_WIN_REQ(i)	(0x1<<(i))
+
+/* Flag to access all functions */
+#define BIND_FN_ALL	0xff
+
+/* Each card function gets one of these guys */
+typedef struct config_t {
+	struct kref	ref;
+	unsigned int	state;
+
+	struct resource io[MAX_IO_WIN]; /* io ports */
+	struct resource mem[MAX_WIN];   /* mem areas */
+} config_t;
+
+
+struct cis_cache_entry {
+	struct list_head	node;
+	unsigned int		addr;
+	unsigned int		len;
+	unsigned int		attr;
+	unsigned char		cache[];
+};
+
+struct pccard_resource_ops {
+	int	(*validate_mem)		(struct pcmcia_socket *s);
+	int	(*find_io)		(struct pcmcia_socket *s,
+					 unsigned int attr,
+					 unsigned int *base,
+					 unsigned int num,
+					 unsigned int align,
+					 struct resource **parent);
+	struct resource* (*find_mem)	(unsigned long base, unsigned long num,
+					 unsigned long align, int low,
+					 struct pcmcia_socket *s);
+	int	(*init)			(struct pcmcia_socket *s);
+	void	(*exit)			(struct pcmcia_socket *s);
+};
+
+/* Flags in config state */
+#define CONFIG_LOCKED		0x01
+#define CONFIG_IRQ_REQ		0x02
+#define CONFIG_IO_REQ		0x04
+
+/* Flags in socket state */
+#define SOCKET_PRESENT		0x0008
+#define SOCKET_INUSE		0x0010
+#define SOCKET_IN_RESUME	0x0040
+#define SOCKET_SUSPEND		0x0080
+#define SOCKET_WIN_REQ(i)	(0x0100<<(i))
+#define SOCKET_CARDBUS		0x8000
+#define SOCKET_CARDBUS_CONFIG	0x10000
+
+
+/*
+ * Stuff internal to module "pcmcia_rsrc":
+ */
+extern int static_init(struct pcmcia_socket *s);
+extern struct resource *pcmcia_make_resource(resource_size_t start,
+					resource_size_t end,
+					unsigned long flags, const char *name);
+
+/*
+ * Stuff internal to module "pcmcia_core":
+ */
+
+/* socket_sysfs.c */
+extern int pccard_sysfs_add_socket(struct device *dev);
+extern void pccard_sysfs_remove_socket(struct device *dev);
+
+/* cardbus.c */
+int cb_alloc(struct pcmcia_socket *s);
+void cb_free(struct pcmcia_socket *s);
+
+
+
+/*
+ * Stuff exported by module "pcmcia_core" to module "pcmcia"
+ */
+
+struct pcmcia_callback{
+	struct module	*owner;
+	int		(*add) (struct pcmcia_socket *s);
+	int		(*remove) (struct pcmcia_socket *s);
+	void		(*requery) (struct pcmcia_socket *s);
+	int		(*validate) (struct pcmcia_socket *s, unsigned int *i);
+	int		(*suspend) (struct pcmcia_socket *s);
+	int		(*early_resume) (struct pcmcia_socket *s);
+	int		(*resume) (struct pcmcia_socket *s);
+};
+
+/* cs.c */
+extern struct rw_semaphore pcmcia_socket_list_rwsem;
+extern struct list_head pcmcia_socket_list;
+extern const struct class pcmcia_socket_class;
+
+int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c);
+
+void pcmcia_parse_uevents(struct pcmcia_socket *socket, unsigned int events);
+#define PCMCIA_UEVENT_EJECT	0x0001
+#define PCMCIA_UEVENT_INSERT	0x0002
+#define PCMCIA_UEVENT_SUSPEND	0x0004
+#define PCMCIA_UEVENT_RESUME	0x0008
+#define PCMCIA_UEVENT_REQUERY	0x0010
+
+struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt);
+void pcmcia_put_socket(struct pcmcia_socket *skt);
+
+/*
+ * Stuff internal to module "pcmcia".
+ */
+/* ds.c */
+extern const struct bus_type pcmcia_bus_type;
+
+struct pcmcia_device;
+
+/* pcmcia_resource.c */
+extern int pcmcia_release_configuration(struct pcmcia_device *p_dev);
+extern int pcmcia_validate_mem(struct pcmcia_socket *s);
+extern struct resource *pcmcia_find_mem_region(u_long base,
+					       u_long num,
+					       u_long align,
+					       int low,
+					       struct pcmcia_socket *s);
+
+void pcmcia_cleanup_irq(struct pcmcia_socket *s);
+int pcmcia_setup_irq(struct pcmcia_device *p_dev);
+
+/* cistpl.c */
+extern const struct bin_attribute pccard_cis_attr;
+
+int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr,
+			u_int addr, u_int len, void *ptr);
+int pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr,
+			u_int addr, u_int len, void *ptr);
+void release_cis_mem(struct pcmcia_socket *s);
+void destroy_cis_cache(struct pcmcia_socket *s);
+int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
+		      cisdata_t code, void *parse);
+int pcmcia_replace_cis(struct pcmcia_socket *s,
+		       const u8 *data, const size_t len);
+int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count);
+int verify_cis_cache(struct pcmcia_socket *s);
+
+int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function,
+			tuple_t *tuple);
+
+int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
+			tuple_t *tuple);
+
+int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple);
+
+#endif /* _LINUX_CS_INTERNAL_H */

linux-7.2.3/drivers/pcmcia/db1xxx_ss.c

@@ -0,0 +1,602 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards.
+ *
+ * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com>
+ *
+ */
+
+/* This is a fairly generic PCMCIA socket driver suitable for the
+ * following Alchemy Development boards:
+ *  Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200, Db1300
+ *
+ * The Db1000 is used as a reference:  Per-socket card-, carddetect- and
+ *  statuschange IRQs connected to SoC GPIOs, control and status register
+ *  bits arranged in per-socket groups in an external PLD.  All boards
+ *  listed here use this layout, including bit positions and meanings.
+ *  Of course there are exceptions in later boards:
+ *
+ *	- Pb1100/Pb1500:  single socket only; voltage key bits VS are
+ *			  at STATUS[5:4] (instead of STATUS[1:0]).
+ *	- Au1200-based:	  additional card-eject irqs, irqs not gpios!
+ *	- Db1300:	  Db1200-like, no pwr ctrl, single socket (#1).
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/resource.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+#define MEM_MAP_SIZE	0x400000
+#define IO_MAP_SIZE	0x1000
+
+struct db1x_pcmcia_sock {
+	struct pcmcia_socket	socket;
+	int		nr;		/* socket number */
+	void		*virt_io;
+
+	phys_addr_t	phys_io;
+	phys_addr_t	phys_attr;
+	phys_addr_t	phys_mem;
+
+	/* previous flags for set_socket() */
+	unsigned int old_flags;
+
+	/* interrupt sources: linux irq numbers! */
+	int	insert_irq;	/* default carddetect irq */
+	int	stschg_irq;	/* card-status-change irq */
+	int	card_irq;	/* card irq */
+	int	eject_irq;	/* db1200/pb1200 have these */
+	int	insert_gpio;	/* db1000 carddetect gpio */
+
+#define BOARD_TYPE_DEFAULT	0	/* most boards */
+#define BOARD_TYPE_DB1200	1	/* IRQs aren't gpios */
+#define BOARD_TYPE_PB1100	2	/* VS bits slightly different */
+#define BOARD_TYPE_DB1300	3	/* no power control */
+	int	board_type;
+};
+
+#define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket)
+
+static int db1300_card_inserted(struct db1x_pcmcia_sock *sock)
+{
+	return bcsr_read(BCSR_SIGSTAT) & (1 << 8);
+}
+
+/* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */
+static int db1200_card_inserted(struct db1x_pcmcia_sock *sock)
+{
+	unsigned short sigstat;
+
+	sigstat = bcsr_read(BCSR_SIGSTAT);
+	return sigstat & 1 << (8 + 2 * sock->nr);
+}
+
+/* carddetect gpio: low-active */
+static int db1000_card_inserted(struct db1x_pcmcia_sock *sock)
+{
+	return !gpio_get_value(sock->insert_gpio);
+}
+
+static int db1x_card_inserted(struct db1x_pcmcia_sock *sock)
+{
+	switch (sock->board_type) {
+	case BOARD_TYPE_DB1200:
+		return db1200_card_inserted(sock);
+	case BOARD_TYPE_DB1300:
+		return db1300_card_inserted(sock);
+	default:
+		return db1000_card_inserted(sock);
+	}
+}
+
+/* STSCHG tends to bounce heavily when cards are inserted/ejected.
+ * To avoid this, the interrupt is normally disabled and only enabled
+ * after reset to a card has been de-asserted.
+ */
+static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en)
+{
+	if (sock->stschg_irq != -1) {
+		if (en)
+			enable_irq(sock->stschg_irq);
+		else
+			disable_irq(sock->stschg_irq);
+	}
+}
+
+static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data)
+{
+	struct db1x_pcmcia_sock *sock = data;
+
+	pcmcia_parse_events(&sock->socket, SS_DETECT);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data)
+{
+	struct db1x_pcmcia_sock *sock = data;
+
+	pcmcia_parse_events(&sock->socket, SS_STSCHG);
+
+	return IRQ_HANDLED;
+}
+
+/* Db/Pb1200 have separate per-socket insertion and ejection
+ * interrupts which stay asserted as long as the card is
+ * inserted/missing.  The one which caused us to be called
+ * needs to be disabled and the other one enabled.
+ */
+static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data)
+{
+	disable_irq_nosync(irq);
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t db1200_pcmcia_cdirq_fn(int irq, void *data)
+{
+	struct db1x_pcmcia_sock *sock = data;
+
+	/* Wait a bit for the signals to stop bouncing. */
+	msleep(100);
+	if (irq == sock->insert_irq)
+		enable_irq(sock->eject_irq);
+	else
+		enable_irq(sock->insert_irq);
+
+	pcmcia_parse_events(&sock->socket, SS_DETECT);
+
+	return IRQ_HANDLED;
+}
+
+static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
+{
+	int ret;
+
+	if (sock->stschg_irq != -1) {
+		ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq,
+				  0, "pcmcia_stschg", sock);
+		if (ret)
+			return ret;
+	}
+
+	/* Db/Pb1200 have separate per-socket insertion and ejection
+	 * interrupts, which should show edge behaviour but don't.
+	 * So interrupts are disabled until both insertion and
+	 * ejection handler have been registered and the currently
+	 * active one disabled.
+	 */
+	if ((sock->board_type == BOARD_TYPE_DB1200) ||
+	    (sock->board_type == BOARD_TYPE_DB1300)) {
+		ret = request_threaded_irq(sock->insert_irq, db1200_pcmcia_cdirq,
+			db1200_pcmcia_cdirq_fn, 0, "pcmcia_insert", sock);
+		if (ret)
+			goto out1;
+
+		ret = request_threaded_irq(sock->eject_irq, db1200_pcmcia_cdirq,
+			db1200_pcmcia_cdirq_fn, 0, "pcmcia_eject", sock);
+		if (ret) {
+			free_irq(sock->insert_irq, sock);
+			goto out1;
+		}
+
+		/* enable the currently silent one */
+		if (db1x_card_inserted(sock))
+			enable_irq(sock->eject_irq);
+		else
+			enable_irq(sock->insert_irq);
+	} else {
+		/* all other (older) Db1x00 boards use a GPIO to show
+		 * card detection status:  use both-edge triggers.
+		 */
+		irq_set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH);
+		ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq,
+				  0, "pcmcia_carddetect", sock);
+
+		if (ret)
+			goto out1;
+	}
+
+	return 0;	/* all done */
+
+out1:
+	if (sock->stschg_irq != -1)
+		free_irq(sock->stschg_irq, sock);
+
+	return ret;
+}
+
+static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock)
+{
+	if (sock->stschg_irq != -1)
+		free_irq(sock->stschg_irq, sock);
+
+	free_irq(sock->insert_irq, sock);
+	if (sock->eject_irq != -1)
+		free_irq(sock->eject_irq, sock);
+}
+
+/*
+ * configure a PCMCIA socket on the Db1x00 series of boards (and
+ * compatibles).
+ *
+ * 2 external registers are involved:
+ *   pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id
+ *   pcmcia_control(offset 0x10):
+ *	bits[0:1] set vcc for card
+ *	bits[2:3] set vpp for card
+ *	bit 4:	enable data buffers
+ *	bit 7:	reset# for card
+ *	add 8 for second socket.
+ */
+static int db1x_pcmcia_configure(struct pcmcia_socket *skt,
+				 struct socket_state_t *state)
+{
+	struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
+	unsigned short cr_clr, cr_set;
+	unsigned int changed;
+	int v, p, ret;
+
+	/* card voltage setup */
+	cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */
+	cr_set = 0;
+	v = p = ret = 0;
+
+	switch (state->Vcc) {
+	case 50:
+		++v;
+		fallthrough;
+	case 33:
+		++v;
+		fallthrough;
+	case 0:
+		break;
+	default:
+		printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n",
+			sock->nr, state->Vcc);
+	}
+
+	switch (state->Vpp) {
+	case 12:
+		++p;
+		fallthrough;
+	case 33:
+	case 50:
+		++p;
+		fallthrough;
+	case 0:
+		break;
+	default:
+		printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n",
+			sock->nr, state->Vpp);
+	}
+
+	/* sanity check: Vpp must be 0, 12, or Vcc */
+	if (((state->Vcc == 33) && (state->Vpp == 50)) ||
+	    ((state->Vcc == 50) && (state->Vpp == 33))) {
+		printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n",
+			sock->nr, state->Vcc, state->Vpp);
+		v = p = 0;
+		ret = -EINVAL;
+	}
+
+	/* create new voltage code */
+	if (sock->board_type != BOARD_TYPE_DB1300)
+		cr_set |= ((v << 2) | p) << (sock->nr * 8);
+
+	changed = state->flags ^ sock->old_flags;
+
+	if (changed & SS_RESET) {
+		if (state->flags & SS_RESET) {
+			set_stschg(sock, 0);
+			/* assert reset, disable io buffers */
+			cr_clr |= (1 << (7 + (sock->nr * 8)));
+			cr_clr |= (1 << (4 + (sock->nr * 8)));
+		} else {
+			/* de-assert reset, enable io buffers */
+			cr_set |= 1 << (7 + (sock->nr * 8));
+			cr_set |= 1 << (4 + (sock->nr * 8));
+		}
+	}
+
+	/* update PCMCIA configuration */
+	bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set);
+
+	sock->old_flags = state->flags;
+
+	/* reset was taken away: give card time to initialize properly */
+	if ((changed & SS_RESET) && !(state->flags & SS_RESET)) {
+		msleep(500);
+		set_stschg(sock, 1);
+	}
+
+	return ret;
+}
+
+/* VCC bits at [3:2]/[11:10] */
+#define GET_VCC(cr, socknr)		\
+	((((cr) >> 2) >> ((socknr) * 8)) & 3)
+
+/* VS bits at [0:1]/[3:2] */
+#define GET_VS(sr, socknr)		\
+	(((sr) >> (2 * (socknr))) & 3)
+
+/* reset bits at [7]/[15] */
+#define GET_RESET(cr, socknr)		\
+	((cr) & (1 << (7 + (8 * (socknr)))))
+
+static int db1x_pcmcia_get_status(struct pcmcia_socket *skt,
+				  unsigned int *value)
+{
+	struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
+	unsigned short cr, sr;
+	unsigned int status;
+
+	status = db1x_card_inserted(sock) ? SS_DETECT : 0;
+
+	cr = bcsr_read(BCSR_PCMCIA);
+	sr = bcsr_read(BCSR_STATUS);
+
+	/* PB1100/PB1500: voltage key bits are at [5:4] */
+	if (sock->board_type == BOARD_TYPE_PB1100)
+		sr >>= 4;
+
+	/* determine card type */
+	switch (GET_VS(sr, sock->nr)) {
+	case 0:
+	case 2:
+		status |= SS_3VCARD;	/* 3V card */
+		break;
+	case 3:
+		break;			/* 5V card: set nothing */
+	default:
+		status |= SS_XVCARD;	/* treated as unsupported in core */
+	}
+
+	/* if Vcc is not zero, we have applied power to a card */
+	status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0;
+
+	/* DB1300: power always on, but don't tell when no card present */
+	if ((sock->board_type == BOARD_TYPE_DB1300) && (status & SS_DETECT))
+		status = SS_POWERON | SS_3VCARD | SS_DETECT;
+
+	/* reset de-asserted? then we're ready */
+	status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET;
+
+	*value = status;
+
+	return 0;
+}
+
+static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt)
+{
+	return 0;
+}
+
+static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt)
+{
+	return 0;
+}
+
+static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt,
+				    struct pccard_io_map *map)
+{
+	struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
+
+	map->start = (u32)sock->virt_io;
+	map->stop = map->start + IO_MAP_SIZE;
+
+	return 0;
+}
+
+static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt,
+				     struct pccard_mem_map *map)
+{
+	struct db1x_pcmcia_sock *sock = to_db1x_socket(skt);
+
+	if (map->flags & MAP_ATTRIB)
+		map->static_start = sock->phys_attr + map->card_start;
+	else
+		map->static_start = sock->phys_mem + map->card_start;
+
+	return 0;
+}
+
+static struct pccard_operations db1x_pcmcia_operations = {
+	.init			= db1x_pcmcia_sock_init,
+	.suspend		= db1x_pcmcia_sock_suspend,
+	.get_status		= db1x_pcmcia_get_status,
+	.set_socket		= db1x_pcmcia_configure,
+	.set_io_map		= au1x00_pcmcia_set_io_map,
+	.set_mem_map		= au1x00_pcmcia_set_mem_map,
+};
+
+static int db1x_pcmcia_socket_probe(struct platform_device *pdev)
+{
+	struct db1x_pcmcia_sock *sock;
+	struct resource *r;
+	int ret, bid;
+
+	sock = kzalloc_obj(struct db1x_pcmcia_sock);
+	if (!sock)
+		return -ENOMEM;
+
+	sock->nr = pdev->id;
+
+	bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	switch (bid) {
+	case BCSR_WHOAMI_PB1500:
+	case BCSR_WHOAMI_PB1500R2:
+	case BCSR_WHOAMI_PB1100:
+		sock->board_type = BOARD_TYPE_PB1100;
+		break;
+	case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR:
+		sock->board_type = BOARD_TYPE_DEFAULT;
+		break;
+	case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200:
+		sock->board_type = BOARD_TYPE_DB1200;
+		break;
+	case BCSR_WHOAMI_DB1300:
+		sock->board_type = BOARD_TYPE_DB1300;
+		break;
+	default:
+		printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid);
+		ret = -ENODEV;
+		goto out0;
+	}
+
+	/*
+	 * gather resources necessary and optional nice-to-haves to
+	 * operate a socket:
+	 * This includes IRQs for Carddetection/ejection, the card
+	 *  itself and optional status change detection.
+	 * Also, the memory areas covered by a socket.  For these
+	 *  we require the real 36bit addresses (see the au1000.h
+	 *  header for more information).
+	 */
+
+	/* card: irq assigned to the card itself. */
+	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card");
+	sock->card_irq = r ? r->start : 0;
+
+	/* insert: irq which triggers on card insertion/ejection
+	 * BIG FAT NOTE: on DB1000/1100/1500/1550 we pass a GPIO here!
+	 */
+	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert");
+	sock->insert_irq = r ? r->start : -1;
+	if (sock->board_type == BOARD_TYPE_DEFAULT) {
+		sock->insert_gpio = r ? r->start : -1;
+		sock->insert_irq = r ? gpio_to_irq(r->start) : -1;
+	}
+
+	/* stschg: irq which trigger on card status change (optional) */
+	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg");
+	sock->stschg_irq = r ? r->start : -1;
+
+	/* eject: irq which triggers on ejection (DB1200/PB1200 only) */
+	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject");
+	sock->eject_irq = r ? r->start : -1;
+
+	ret = -ENODEV;
+
+	/* 36bit PCMCIA Attribute area address */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr");
+	if (!r) {
+		printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n",
+			sock->nr);
+		goto out0;
+	}
+	sock->phys_attr = r->start;
+
+	/* 36bit PCMCIA Memory area address */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem");
+	if (!r) {
+		printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n",
+			sock->nr);
+		goto out0;
+	}
+	sock->phys_mem = r->start;
+
+	/* 36bit PCMCIA IO area address */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io");
+	if (!r) {
+		printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n",
+			sock->nr);
+		goto out0;
+	}
+	sock->phys_io = r->start;
+
+	/*
+	 * PCMCIA client drivers use the inb/outb macros to access
+	 * the IO registers.  Since mips_io_port_base is added
+	 * to the access address of the mips implementation of
+	 * inb/outb, we need to subtract it here because we want
+	 * to access the I/O or MEM address directly, without
+	 * going through this "mips_io_port_base" mechanism.
+	 */
+	sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) -
+				 mips_io_port_base);
+
+	if (!sock->virt_io) {
+		printk(KERN_ERR "pcmcia%d: cannot remap IO area\n",
+			sock->nr);
+		ret = -ENOMEM;
+		goto out0;
+	}
+
+	sock->socket.ops	= &db1x_pcmcia_operations;
+	sock->socket.owner	= THIS_MODULE;
+	sock->socket.pci_irq	= sock->card_irq;
+	sock->socket.features	= SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
+	sock->socket.map_size	= MEM_MAP_SIZE;
+	sock->socket.io_offset	= (unsigned long)sock->virt_io;
+	sock->socket.dev.parent	= &pdev->dev;
+	sock->socket.resource_ops = &pccard_static_ops;
+
+	platform_set_drvdata(pdev, sock);
+
+	ret = db1x_pcmcia_setup_irqs(sock);
+	if (ret) {
+		printk(KERN_ERR "pcmcia%d cannot setup interrupts\n",
+			sock->nr);
+		goto out1;
+	}
+
+	set_stschg(sock, 0);
+
+	ret = pcmcia_register_socket(&sock->socket);
+	if (ret) {
+		printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr);
+		goto out2;
+	}
+
+	printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx"
+		"(%p) %09llx %09llx  card/insert/stschg/eject irqs @ %d "
+		"%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io,
+		sock->phys_attr, sock->phys_mem, sock->card_irq,
+		sock->insert_irq, sock->stschg_irq, sock->eject_irq);
+
+	return 0;
+
+out2:
+	db1x_pcmcia_free_irqs(sock);
+out1:
+	iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
+out0:
+	kfree(sock);
+	return ret;
+}
+
+static void db1x_pcmcia_socket_remove(struct platform_device *pdev)
+{
+	struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev);
+
+	db1x_pcmcia_free_irqs(sock);
+	pcmcia_unregister_socket(&sock->socket);
+	iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
+	kfree(sock);
+}
+
+static struct platform_driver db1x_pcmcia_socket_driver = {
+	.driver	= {
+		.name	= "db1xxx_pcmcia",
+	},
+	.probe		= db1x_pcmcia_socket_probe,
+	.remove		= db1x_pcmcia_socket_remove,
+};
+
+module_platform_driver(db1x_pcmcia_socket_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards");
+MODULE_AUTHOR("Manuel Lauss");

linux-7.2.3/drivers/pcmcia/electra_cf.c

@@ -0,0 +1,352 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2007 PA Semi, Inc
+ *
+ * Maintained by: Olof Johansson <olof@lixom.net>
+ *
+ * Based on drivers/pcmcia/omap_cf.c
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/platform_device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/slab.h>
+
+#include <pcmcia/ss.h>
+
+static const char driver_name[] = "electra-cf";
+
+struct electra_cf_socket {
+	struct pcmcia_socket	socket;
+
+	struct timer_list	timer;
+	unsigned		present:1;
+	unsigned		active:1;
+
+	struct platform_device	*ofdev;
+	unsigned long		mem_phys;
+	void __iomem		*mem_base;
+	unsigned long		mem_size;
+	void __iomem		*io_virt;
+	unsigned int		io_base;
+	unsigned int		io_size;
+	u_int			irq;
+	struct resource		iomem;
+	void __iomem		*gpio_base;
+	int			gpio_detect;
+	int			gpio_vsense;
+	int			gpio_3v;
+	int			gpio_5v;
+};
+
+#define	POLL_INTERVAL		(2 * HZ)
+
+
+static int electra_cf_present(struct electra_cf_socket *cf)
+{
+	unsigned int gpio;
+
+	gpio = in_le32(cf->gpio_base+0x40);
+	return !(gpio & (1 << cf->gpio_detect));
+}
+
+static int electra_cf_ss_init(struct pcmcia_socket *s)
+{
+	return 0;
+}
+
+/* the timer is primarily to kick this socket's pccardd */
+static void electra_cf_timer(struct timer_list *t)
+{
+	struct electra_cf_socket *cf = timer_container_of(cf, t, timer);
+	int present = electra_cf_present(cf);
+
+	if (present != cf->present) {
+		cf->present = present;
+		pcmcia_parse_events(&cf->socket, SS_DETECT);
+	}
+
+	if (cf->active)
+		mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
+}
+
+static irqreturn_t electra_cf_irq(int irq, void *_cf)
+{
+	struct electra_cf_socket *cf = _cf;
+
+	electra_cf_timer(&cf->timer);
+	return IRQ_HANDLED;
+}
+
+static int electra_cf_get_status(struct pcmcia_socket *s, u_int *sp)
+{
+	struct electra_cf_socket *cf;
+
+	if (!sp)
+		return -EINVAL;
+
+	cf = container_of(s, struct electra_cf_socket, socket);
+
+	/* NOTE CF is always 3VCARD */
+	if (electra_cf_present(cf)) {
+		*sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD;
+
+		s->pci_irq = cf->irq;
+	} else
+		*sp = 0;
+	return 0;
+}
+
+static int electra_cf_set_socket(struct pcmcia_socket *sock,
+				 struct socket_state_t *s)
+{
+	unsigned int gpio;
+	unsigned int vcc;
+	struct electra_cf_socket *cf;
+
+	cf = container_of(sock, struct electra_cf_socket, socket);
+
+	/* "reset" means no power in our case */
+	vcc = (s->flags & SS_RESET) ? 0 : s->Vcc;
+
+	switch (vcc) {
+	case 0:
+		gpio = 0;
+		break;
+	case 33:
+		gpio = (1 << cf->gpio_3v);
+		break;
+	case 5:
+		gpio = (1 << cf->gpio_5v);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	gpio |= 1 << (cf->gpio_3v + 16); /* enwr */
+	gpio |= 1 << (cf->gpio_5v + 16); /* enwr */
+	out_le32(cf->gpio_base+0x90, gpio);
+
+	pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n",
+		driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask);
+
+	return 0;
+}
+
+static int electra_cf_set_io_map(struct pcmcia_socket *s,
+				 struct pccard_io_map *io)
+{
+	return 0;
+}
+
+static int electra_cf_set_mem_map(struct pcmcia_socket *s,
+				  struct pccard_mem_map *map)
+{
+	struct electra_cf_socket *cf;
+
+	if (map->card_start)
+		return -EINVAL;
+	cf = container_of(s, struct electra_cf_socket, socket);
+	map->static_start = cf->mem_phys;
+	map->flags &= MAP_ACTIVE|MAP_ATTRIB;
+	if (!(map->flags & MAP_ATTRIB))
+		map->static_start += 0x800;
+	return 0;
+}
+
+static struct pccard_operations electra_cf_ops = {
+	.init			= electra_cf_ss_init,
+	.get_status		= electra_cf_get_status,
+	.set_socket		= electra_cf_set_socket,
+	.set_io_map		= electra_cf_set_io_map,
+	.set_mem_map		= electra_cf_set_mem_map,
+};
+
+static int electra_cf_probe(struct platform_device *ofdev)
+{
+	struct device *device = &ofdev->dev;
+	struct device_node *np = ofdev->dev.of_node;
+	struct electra_cf_socket   *cf;
+	struct resource mem, io;
+	int status = -ENOMEM;
+	const unsigned int *prop;
+	int err;
+
+	err = of_address_to_resource(np, 0, &mem);
+	if (err)
+		return -EINVAL;
+
+	err = of_address_to_resource(np, 1, &io);
+	if (err)
+		return -EINVAL;
+
+	cf = kzalloc_obj(*cf);
+	if (!cf)
+		return -ENOMEM;
+
+	timer_setup(&cf->timer, electra_cf_timer, 0);
+	cf->irq = 0;
+
+	cf->ofdev = ofdev;
+	cf->mem_phys = mem.start;
+	cf->mem_size = PAGE_ALIGN(resource_size(&mem));
+	cf->mem_base = ioremap(cf->mem_phys, cf->mem_size);
+	if (!cf->mem_base)
+		goto out_free_cf;
+	cf->io_size = PAGE_ALIGN(resource_size(&io));
+	cf->io_virt = ioremap_phb(io.start, cf->io_size);
+	if (!cf->io_virt)
+		goto out_unmap_mem;
+
+	cf->gpio_base = ioremap(0xfc103000, 0x1000);
+	if (!cf->gpio_base)
+		goto out_unmap_virt;
+	dev_set_drvdata(device, cf);
+
+	cf->io_base = (unsigned long)cf->io_virt - VMALLOC_END;
+	cf->iomem.start = (unsigned long)cf->mem_base;
+	cf->iomem.end = (unsigned long)cf->mem_base + (mem.end - mem.start);
+	cf->iomem.flags = IORESOURCE_MEM;
+
+	cf->irq = irq_of_parse_and_map(np, 0);
+
+	status = request_irq(cf->irq, electra_cf_irq, IRQF_SHARED,
+			     driver_name, cf);
+	if (status < 0) {
+		dev_err(device, "request_irq failed\n");
+		goto fail1;
+	}
+
+	cf->socket.pci_irq = cf->irq;
+
+	status = -EINVAL;
+
+	prop = of_get_property(np, "card-detect-gpio", NULL);
+	if (!prop)
+		goto fail1;
+	cf->gpio_detect = *prop;
+
+	prop = of_get_property(np, "card-vsense-gpio", NULL);
+	if (!prop)
+		goto fail1;
+	cf->gpio_vsense = *prop;
+
+	prop = of_get_property(np, "card-3v-gpio", NULL);
+	if (!prop)
+		goto fail1;
+	cf->gpio_3v = *prop;
+
+	prop = of_get_property(np, "card-5v-gpio", NULL);
+	if (!prop)
+		goto fail1;
+	cf->gpio_5v = *prop;
+
+	cf->socket.io_offset = cf->io_base;
+
+	/* reserve chip-select regions */
+	if (!request_mem_region(cf->mem_phys, cf->mem_size, driver_name)) {
+		status = -ENXIO;
+		dev_err(device, "Can't claim memory region\n");
+		goto fail1;
+	}
+
+	if (!request_region(cf->io_base, cf->io_size, driver_name)) {
+		status = -ENXIO;
+		dev_err(device, "Can't claim I/O region\n");
+		goto fail2;
+	}
+
+	cf->socket.owner = THIS_MODULE;
+	cf->socket.dev.parent = &ofdev->dev;
+	cf->socket.ops = &electra_cf_ops;
+	cf->socket.resource_ops = &pccard_static_ops;
+	cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP |
+				SS_CAP_MEM_ALIGN;
+	cf->socket.map_size = 0x800;
+
+	status = pcmcia_register_socket(&cf->socket);
+	if (status < 0) {
+		dev_err(device, "pcmcia_register_socket failed\n");
+		goto fail3;
+	}
+
+	dev_info(device, "at mem 0x%lx io 0x%llx irq %d\n",
+		 cf->mem_phys, io.start, cf->irq);
+
+	cf->active = 1;
+	electra_cf_timer(&cf->timer);
+	return 0;
+
+fail3:
+	release_region(cf->io_base, cf->io_size);
+fail2:
+	release_mem_region(cf->mem_phys, cf->mem_size);
+fail1:
+	if (cf->irq)
+		free_irq(cf->irq, cf);
+
+	iounmap(cf->gpio_base);
+out_unmap_virt:
+	device_init_wakeup(&ofdev->dev, 0);
+	iounmap(cf->io_virt);
+out_unmap_mem:
+	iounmap(cf->mem_base);
+out_free_cf:
+	kfree(cf);
+	return status;
+
+}
+
+static void electra_cf_remove(struct platform_device *ofdev)
+{
+	struct device *device = &ofdev->dev;
+	struct electra_cf_socket *cf;
+
+	cf = dev_get_drvdata(device);
+
+	cf->active = 0;
+	pcmcia_unregister_socket(&cf->socket);
+	free_irq(cf->irq, cf);
+	timer_shutdown_sync(&cf->timer);
+
+	iounmap(cf->io_virt);
+	iounmap(cf->mem_base);
+	iounmap(cf->gpio_base);
+	release_mem_region(cf->mem_phys, cf->mem_size);
+	release_region(cf->io_base, cf->io_size);
+
+	kfree(cf);
+}
+
+static const struct of_device_id electra_cf_match[] = {
+	{
+		.compatible   = "electra-cf",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, electra_cf_match);
+
+static struct platform_driver electra_cf_driver = {
+	.driver = {
+		.name = driver_name,
+		.of_match_table = electra_cf_match,
+	},
+	.probe	  = electra_cf_probe,
+	.remove   = electra_cf_remove,
+};
+
+module_platform_driver(electra_cf_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Olof Johansson <olof@lixom.net>");
+MODULE_DESCRIPTION("PA Semi Electra CF driver");

linux-7.2.3/drivers/pcmcia/i82365.h

@@ -0,0 +1,136 @@
+/*
+ * i82365.h 1.15 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_I82365_H
+#define _LINUX_I82365_H
+
+/* register definitions for the Intel 82365SL PCMCIA controller */
+
+/* Offsets for PCIC registers */
+#define I365_IDENT	0x00	/* Identification and revision */
+#define I365_STATUS	0x01	/* Interface status */
+#define I365_POWER	0x02	/* Power and RESETDRV control */
+#define I365_INTCTL	0x03	/* Interrupt and general control */
+#define I365_CSC	0x04	/* Card status change */
+#define I365_CSCINT	0x05	/* Card status change interrupt control */
+#define I365_ADDRWIN	0x06	/* Address window enable */
+#define I365_IOCTL	0x07	/* I/O control */
+#define I365_GENCTL	0x16	/* Card detect and general control */
+#define I365_GBLCTL	0x1E	/* Global control register */
+
+/* Offsets for I/O and memory window registers */
+#define I365_IO(map)	(0x08+((map)<<2))
+#define I365_MEM(map)	(0x10+((map)<<3))
+#define I365_W_START	0
+#define I365_W_STOP	2
+#define I365_W_OFF	4
+
+/* Flags for I365_STATUS */
+#define I365_CS_BVD1	0x01
+#define I365_CS_STSCHG	0x01
+#define I365_CS_BVD2	0x02
+#define I365_CS_SPKR	0x02
+#define I365_CS_DETECT	0x0C
+#define I365_CS_WRPROT	0x10
+#define I365_CS_READY	0x20	/* Inverted */
+#define I365_CS_POWERON	0x40
+#define I365_CS_GPI	0x80
+
+/* Flags for I365_POWER */
+#define I365_PWR_OFF	0x00	/* Turn off the socket */
+#define I365_PWR_OUT	0x80	/* Output enable */
+#define I365_PWR_NORESET 0x40	/* Disable RESETDRV on resume */
+#define I365_PWR_AUTO	0x20	/* Auto pwr switch enable */
+#define I365_VCC_MASK	0x18	/* Mask for turning off Vcc */
+/* There are different layouts for B-step and DF-step chips: the B
+   step has independent Vpp1/Vpp2 control, and the DF step has only
+   Vpp1 control, plus 3V control */
+#define I365_VCC_5V	0x10	/* Vcc = 5.0v */
+#define I365_VCC_3V	0x18	/* Vcc = 3.3v */
+#define I365_VPP2_MASK	0x0c	/* Mask for turning off Vpp2 */
+#define I365_VPP2_5V	0x04	/* Vpp2 = 5.0v */
+#define I365_VPP2_12V	0x08	/* Vpp2 = 12.0v */
+#define I365_VPP1_MASK	0x03	/* Mask for turning off Vpp1 */
+#define I365_VPP1_5V	0x01	/* Vpp1 = 5.0v */
+#define I365_VPP1_12V	0x02	/* Vpp1 = 12.0v */
+
+/* Flags for I365_INTCTL */
+#define I365_RING_ENA	0x80
+#define I365_PC_RESET	0x40
+#define I365_PC_IOCARD	0x20
+#define I365_INTR_ENA	0x10
+#define I365_IRQ_MASK	0x0F
+
+/* Flags for I365_CSC and I365_CSCINT*/
+#define I365_CSC_BVD1	0x01
+#define I365_CSC_STSCHG	0x01
+#define I365_CSC_BVD2	0x02
+#define I365_CSC_READY	0x04
+#define I365_CSC_DETECT	0x08
+#define I365_CSC_ANY	0x0F
+#define I365_CSC_GPI	0x10
+#define I365_CSC_IRQ_MASK	0xF0
+
+/* Flags for I365_ADDRWIN */
+#define I365_ENA_IO(map)	(0x40 << (map))
+#define I365_ENA_MEM(map)	(0x01 << (map))
+
+/* Flags for I365_IOCTL */
+#define I365_IOCTL_MASK(map)	(0x0F << (map<<2))
+#define I365_IOCTL_WAIT(map)	(0x08 << (map<<2))
+#define I365_IOCTL_0WS(map)	(0x04 << (map<<2))
+#define I365_IOCTL_IOCS16(map)	(0x02 << (map<<2))
+#define I365_IOCTL_16BIT(map)	(0x01 << (map<<2))
+
+/* Flags for I365_GENCTL */
+#define I365_CTL_16DELAY	0x01
+#define I365_CTL_RESET		0x02
+#define I365_CTL_GPI_ENA	0x04
+#define I365_CTL_GPI_CTL	0x08
+#define I365_CTL_RESUME		0x10
+#define I365_CTL_SW_IRQ		0x20
+
+/* Flags for I365_GBLCTL */
+#define I365_GBL_PWRDOWN	0x01
+#define I365_GBL_CSC_LEV	0x02
+#define I365_GBL_WRBACK		0x04
+#define I365_GBL_IRQ_0_LEV	0x08
+#define I365_GBL_IRQ_1_LEV	0x10
+
+/* Flags for memory window registers */
+#define I365_MEM_16BIT	0x8000	/* In memory start high byte */
+#define I365_MEM_0WS	0x4000
+#define I365_MEM_WS1	0x8000	/* In memory stop high byte */
+#define I365_MEM_WS0	0x4000
+#define I365_MEM_WRPROT	0x8000	/* In offset high byte */
+#define I365_MEM_REG	0x4000
+
+#define I365_REG(slot, reg)	(((slot) << 6) + reg)
+
+#endif /* _LINUX_I82365_H */

linux-7.2.3/drivers/pcmcia/max1600.c

@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MAX1600 PCMCIA power switch library
+ *
+ * Copyright (C) 2016 Russell King
+ */
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/slab.h>
+#include "max1600.h"
+
+static const char *max1600_gpio_name[2][MAX1600_GPIO_MAX] = {
+	{ "a0vcc", "a1vcc", "a0vpp", "a1vpp" },
+	{ "b0vcc", "b1vcc", "b0vpp", "b1vpp" },
+};
+
+int max1600_init(struct device *dev, struct max1600 **ptr,
+	unsigned int channel, unsigned int code)
+{
+	struct max1600 *m;
+	int chan;
+	int i;
+
+	switch (channel) {
+	case MAX1600_CHAN_A:
+		chan = 0;
+		break;
+	case MAX1600_CHAN_B:
+		chan = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (code != MAX1600_CODE_LOW && code != MAX1600_CODE_HIGH)
+		return -EINVAL;
+
+	m = devm_kzalloc(dev, sizeof(*m), GFP_KERNEL);
+	if (!m)
+		return -ENOMEM;
+
+	m->dev = dev;
+	m->code = code;
+
+	for (i = 0; i < MAX1600_GPIO_MAX; i++) {
+		const char *name;
+
+		name = max1600_gpio_name[chan][i];
+		if (i != MAX1600_GPIO_0VPP) {
+			m->gpio[i] = devm_gpiod_get(dev, name, GPIOD_OUT_LOW);
+		} else {
+			m->gpio[i] = devm_gpiod_get_optional(dev, name,
+							     GPIOD_OUT_LOW);
+			if (!m->gpio[i])
+				break;
+		}
+		if (IS_ERR(m->gpio[i]))
+			return PTR_ERR(m->gpio[i]);
+	}
+
+	*ptr = m;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(max1600_init);
+
+int max1600_configure(struct max1600 *m, unsigned int vcc, unsigned int vpp)
+{
+	DECLARE_BITMAP(values, MAX1600_GPIO_MAX) = { 0, };
+	int n = MAX1600_GPIO_0VPP;
+
+	if (m->gpio[MAX1600_GPIO_0VPP]) {
+		if (vpp == 0) {
+			__assign_bit(MAX1600_GPIO_0VPP, values, 0);
+			__assign_bit(MAX1600_GPIO_1VPP, values, 0);
+		} else if (vpp == 120) {
+			__assign_bit(MAX1600_GPIO_0VPP, values, 0);
+			__assign_bit(MAX1600_GPIO_1VPP, values, 1);
+		} else if (vpp == vcc) {
+			__assign_bit(MAX1600_GPIO_0VPP, values, 1);
+			__assign_bit(MAX1600_GPIO_1VPP, values, 0);
+		} else {
+			dev_err(m->dev, "unrecognised Vpp %u.%uV\n",
+				vpp / 10, vpp % 10);
+			return -EINVAL;
+		}
+		n = MAX1600_GPIO_MAX;
+	} else if (vpp != vcc && vpp != 0) {
+		dev_err(m->dev, "no VPP control\n");
+		return -EINVAL;
+	}
+
+	if (vcc == 0) {
+		__assign_bit(MAX1600_GPIO_0VCC, values, 0);
+		__assign_bit(MAX1600_GPIO_1VCC, values, 0);
+	} else if (vcc == 33) { /* VY */
+		__assign_bit(MAX1600_GPIO_0VCC, values, 1);
+		__assign_bit(MAX1600_GPIO_1VCC, values, 0);
+	} else if (vcc == 50) { /* VX */
+		__assign_bit(MAX1600_GPIO_0VCC, values, 0);
+		__assign_bit(MAX1600_GPIO_1VCC, values, 1);
+	} else {
+		dev_err(m->dev, "unrecognised Vcc %u.%uV\n",
+			vcc / 10, vcc % 10);
+		return -EINVAL;
+	}
+
+	if (m->code == MAX1600_CODE_HIGH) {
+		/*
+		 * Cirrus mode appears to be the same as Intel mode,
+		 * except the VCC pins are inverted.
+		 */
+		__change_bit(MAX1600_GPIO_0VCC, values);
+		__change_bit(MAX1600_GPIO_1VCC, values);
+	}
+
+	return gpiod_set_array_value_cansleep(n, m->gpio, NULL, values);
+}
+EXPORT_SYMBOL_GPL(max1600_configure);
+
+MODULE_DESCRIPTION("MAX1600 PCMCIA power switch library");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/pcmcia/max1600.h

@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef MAX1600_H
+#define MAX1600_H
+
+struct gpio_desc;
+
+enum {
+	MAX1600_GPIO_0VCC = 0,
+	MAX1600_GPIO_1VCC,
+	MAX1600_GPIO_0VPP,
+	MAX1600_GPIO_1VPP,
+	MAX1600_GPIO_MAX,
+
+	MAX1600_CHAN_A,
+	MAX1600_CHAN_B,
+
+	MAX1600_CODE_LOW,
+	MAX1600_CODE_HIGH,
+};
+
+struct max1600 {
+	struct gpio_desc *gpio[MAX1600_GPIO_MAX];
+	struct device *dev;
+	unsigned int code;
+};
+
+int max1600_init(struct device *dev, struct max1600 **ptr,
+	unsigned int channel, unsigned int code);
+
+int max1600_configure(struct max1600 *, unsigned int vcc, unsigned int vpp);
+
+#endif

linux-7.2.3/drivers/pcmcia/o2micro.h

@@ -0,0 +1,183 @@
+/*
+ * o2micro.h 1.13 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_O2MICRO_H
+#define _LINUX_O2MICRO_H
+
+/* Additional PCI configuration registers */
+
+#define O2_MUX_CONTROL		0x90	/* 32 bit */
+#define  O2_MUX_RING_OUT	0x0000000f
+#define  O2_MUX_SKTB_ACTV	0x000000f0
+#define  O2_MUX_SCTA_ACTV_ENA	0x00000100
+#define  O2_MUX_SCTB_ACTV_ENA	0x00000200
+#define  O2_MUX_SER_IRQ_ROUTE	0x0000e000
+#define  O2_MUX_SER_PCI		0x00010000
+
+#define  O2_MUX_SKTA_TURBO	0x000c0000	/* for 6833, 6860 */
+#define  O2_MUX_SKTB_TURBO	0x00300000
+#define  O2_MUX_AUX_VCC_3V	0x00400000
+#define  O2_MUX_PCI_VCC_5V	0x00800000
+#define  O2_MUX_PME_MUX		0x0f000000
+
+/* Additional ExCA registers */
+
+#define O2_MODE_A		0x38
+#define O2_MODE_A_2		0x26	/* for 6833B, 6860C */
+#define  O2_MODE_A_CD_PULSE	0x04
+#define  O2_MODE_A_SUSP_EDGE	0x08
+#define  O2_MODE_A_HOST_SUSP	0x10
+#define  O2_MODE_A_PWR_MASK	0x60
+#define  O2_MODE_A_QUIET	0x80
+
+#define O2_MODE_B		0x39
+#define O2_MODE_B_2		0x2e	/* for 6833B, 6860C */
+#define  O2_MODE_B_IDENT	0x03
+#define  O2_MODE_B_ID_BSTEP	0x00
+#define  O2_MODE_B_ID_CSTEP	0x01
+#define  O2_MODE_B_ID_O2	0x02
+#define  O2_MODE_B_VS1		0x04
+#define  O2_MODE_B_VS2		0x08
+#define  O2_MODE_B_IRQ15_RI	0x80
+
+#define O2_MODE_C		0x3a
+#define  O2_MODE_C_DREQ_MASK	0x03
+#define  O2_MODE_C_DREQ_INPACK	0x01
+#define  O2_MODE_C_DREQ_WP	0x02
+#define  O2_MODE_C_DREQ_BVD2	0x03
+#define  O2_MODE_C_ZVIDEO	0x08
+#define  O2_MODE_C_IREQ_SEL	0x30
+#define  O2_MODE_C_MGMT_SEL	0xc0
+
+#define O2_MODE_D		0x3b
+#define  O2_MODE_D_IRQ_MODE	0x03
+#define  O2_MODE_D_PCI_CLKRUN	0x04
+#define  O2_MODE_D_CB_CLKRUN	0x08
+#define  O2_MODE_D_SKT_ACTV	0x20
+#define  O2_MODE_D_PCI_FIFO	0x40	/* for OZ6729, OZ6730 */
+#define  O2_MODE_D_W97_IRQ	0x40
+#define  O2_MODE_D_ISA_IRQ	0x80
+
+#define O2_MHPG_DMA		0x3c
+#define  O2_MHPG_CHANNEL	0x07
+#define  O2_MHPG_CINT_ENA	0x08
+#define  O2_MHPG_CSC_ENA	0x10
+
+#define O2_FIFO_ENA		0x3d
+#define  O2_FIFO_ZVIDEO_3	0x08
+#define  O2_FIFO_PCI_FIFO	0x10
+#define  O2_FIFO_POSTWR		0x40
+#define  O2_FIFO_BUFFER		0x80
+
+#define O2_MODE_E		0x3e
+#define  O2_MODE_E_MHPG_DMA	0x01
+#define  O2_MODE_E_SPKR_OUT	0x02
+#define  O2_MODE_E_LED_OUT	0x08
+#define  O2_MODE_E_SKTA_ACTV	0x10
+
+#define O2_RESERVED1		0x94
+#define O2_RESERVED2		0xD4
+#define O2_RES_READ_PREFETCH	0x02
+#define O2_RES_WRITE_BURST	0x08
+
+static int o2micro_override(struct yenta_socket *socket)
+{
+	/*
+	 * 'reserved' register at 0x94/D4. allows setting read prefetch and write
+	 * bursting. read prefetching for example makes the RME Hammerfall DSP
+	 * working. for some bridges it is at 0x94, for others at 0xD4. it's
+	 * ok to write to both registers on all O2 bridges.
+	 * from Eric Still, 02Micro.
+	 */
+	u8 a, b;
+	bool use_speedup;
+
+	if (PCI_FUNC(socket->dev->devfn) == 0) {
+		a = config_readb(socket, O2_RESERVED1);
+		b = config_readb(socket, O2_RESERVED2);
+		dev_dbg(&socket->dev->dev, "O2: 0x94/0xD4: %02x/%02x\n", a, b);
+
+		switch (socket->dev->device) {
+		/*
+		 * older bridges have problems with both read prefetch and write
+		 * bursting depending on the combination of the chipset, bridge
+		 * and the cardbus card. so disable them to be on the safe side.
+		 */
+		case PCI_DEVICE_ID_O2_6729:
+		case PCI_DEVICE_ID_O2_6730:
+		case PCI_DEVICE_ID_O2_6812:
+		case PCI_DEVICE_ID_O2_6832:
+		case PCI_DEVICE_ID_O2_6836:
+		case PCI_DEVICE_ID_O2_6933:
+			use_speedup = false;
+			break;
+		default:
+			use_speedup = true;
+			break;
+		}
+
+		/* the user may override our decision */
+		if (strcasecmp(o2_speedup, "on") == 0)
+			use_speedup = true;
+		else if (strcasecmp(o2_speedup, "off") == 0)
+			use_speedup = false;
+		else if (strcasecmp(o2_speedup, "default") != 0)
+			dev_warn(&socket->dev->dev,
+				"O2: Unknown parameter, using 'default'");
+
+		if (use_speedup) {
+			dev_info(&socket->dev->dev,
+				"O2: enabling read prefetch/write burst. If you experience problems or performance issues, use the yenta_socket parameter 'o2_speedup=off'\n");
+			config_writeb(socket, O2_RESERVED1,
+				      a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+			config_writeb(socket, O2_RESERVED2,
+				      b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST);
+		} else {
+			dev_info(&socket->dev->dev,
+				"O2: disabling read prefetch/write burst. If you experience problems or performance issues, use the yenta_socket parameter 'o2_speedup=on'\n");
+			config_writeb(socket, O2_RESERVED1,
+				      a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
+			config_writeb(socket, O2_RESERVED2,
+				      b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST));
+		}
+	}
+
+	return 0;
+}
+
+static void o2micro_restore_state(struct yenta_socket *socket)
+{
+	/*
+	 * as long as read prefetch is the only thing in
+	 * o2micro_override, it's safe to call it from here
+	 */
+	o2micro_override(socket);
+}
+
+#endif /* _LINUX_O2MICRO_H */

linux-7.2.3/drivers/pcmcia/omap_cf.c

@@ -0,0 +1,338 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * omap_cf.c -- OMAP 16xx CompactFlash controller driver
+ *
+ * Copyright (c) 2005 David Brownell
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/io.h>
+#include <linux/sizes.h>
+
+#include <linux/soc/ti/omap1-io.h>
+#include <linux/soc/ti/omap1-soc.h>
+#include <linux/soc/ti/omap1-mux.h>
+
+/* NOTE:  don't expect this to support many I/O cards.  The 16xx chips have
+ * hard-wired timings to support Compact Flash memory cards; they won't work
+ * with various other devices (like WLAN adapters) without some external
+ * logic to help out.
+ *
+ * NOTE:  CF controller docs disagree with address space docs as to where
+ * CF_BASE really lives; this is a doc erratum.
+ */
+#define	CF_BASE	0xfffe2800
+
+/* status; read after IRQ */
+#define CF_STATUS			(CF_BASE + 0x00)
+#	define	CF_STATUS_BAD_READ	(1 << 2)
+#	define	CF_STATUS_BAD_WRITE	(1 << 1)
+#	define	CF_STATUS_CARD_DETECT	(1 << 0)
+
+/* which chipselect (CS0..CS3) is used for CF (active low) */
+#define CF_CFG				(CF_BASE + 0x02)
+
+/* card reset */
+#define CF_CONTROL			(CF_BASE + 0x04)
+#	define	CF_CONTROL_RESET	(1 << 0)
+
+#define omap_cf_present() (!(omap_readw(CF_STATUS) & CF_STATUS_CARD_DETECT))
+
+/*--------------------------------------------------------------------------*/
+
+static const char driver_name[] = "omap_cf";
+
+struct omap_cf_socket {
+	struct pcmcia_socket	socket;
+
+	struct timer_list	timer;
+	unsigned		present:1;
+	unsigned		active:1;
+
+	struct platform_device	*pdev;
+	unsigned long		phys_cf;
+	u_int			irq;
+	struct resource		iomem;
+};
+
+#define	POLL_INTERVAL		(2 * HZ)
+
+/*--------------------------------------------------------------------------*/
+
+static int omap_cf_ss_init(struct pcmcia_socket *s)
+{
+	return 0;
+}
+
+/* the timer is primarily to kick this socket's pccardd */
+static void omap_cf_timer(struct timer_list *t)
+{
+	struct omap_cf_socket	*cf = timer_container_of(cf, t, timer);
+	unsigned		present = omap_cf_present();
+
+	if (present != cf->present) {
+		cf->present = present;
+		pr_debug("%s: card %s\n", driver_name,
+			present ? "present" : "gone");
+		pcmcia_parse_events(&cf->socket, SS_DETECT);
+	}
+
+	if (cf->active)
+		mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
+}
+
+/* This irq handler prevents "irqNNN: nobody cared" messages as drivers
+ * claim the card's IRQ.  It may also detect some card insertions, but
+ * not removals; it can't always eliminate timer irqs.
+ */
+static irqreturn_t omap_cf_irq(int irq, void *_cf)
+{
+	struct omap_cf_socket *cf = (struct omap_cf_socket *)_cf;
+
+	omap_cf_timer(&cf->timer);
+	return IRQ_HANDLED;
+}
+
+static int omap_cf_get_status(struct pcmcia_socket *s, u_int *sp)
+{
+	if (!sp)
+		return -EINVAL;
+
+	/* NOTE CF is always 3VCARD */
+	if (omap_cf_present()) {
+		struct omap_cf_socket	*cf;
+
+		*sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD;
+		cf = container_of(s, struct omap_cf_socket, socket);
+		s->pcmcia_irq = 0;
+		s->pci_irq = cf->irq;
+	} else
+		*sp = 0;
+	return 0;
+}
+
+static int
+omap_cf_set_socket(struct pcmcia_socket *sock, struct socket_state_t *s)
+{
+	/* REVISIT some non-OSK boards may support power switching */
+	switch (s->Vcc) {
+	case 0:
+	case 33:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	omap_readw(CF_CONTROL);
+	if (s->flags & SS_RESET)
+		omap_writew(CF_CONTROL_RESET, CF_CONTROL);
+	else
+		omap_writew(0, CF_CONTROL);
+
+	pr_debug("%s: Vcc %d, io_irq %d, flags %04x csc %04x\n",
+		driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask);
+
+	return 0;
+}
+
+static int omap_cf_ss_suspend(struct pcmcia_socket *s)
+{
+	pr_debug("%s: %s\n", driver_name, __func__);
+	return omap_cf_set_socket(s, &dead_socket);
+}
+
+/* regions are 2K each:  mem, attrib, io (and reserved-for-ide) */
+
+static int
+omap_cf_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
+{
+	struct omap_cf_socket	*cf;
+
+	cf = container_of(s, struct omap_cf_socket, socket);
+	io->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
+	io->start = cf->phys_cf + SZ_4K;
+	io->stop = io->start + SZ_2K - 1;
+	return 0;
+}
+
+static int
+omap_cf_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *map)
+{
+	struct omap_cf_socket	*cf;
+
+	if (map->card_start)
+		return -EINVAL;
+	cf = container_of(s, struct omap_cf_socket, socket);
+	map->static_start = cf->phys_cf;
+	map->flags &= MAP_ACTIVE|MAP_ATTRIB|MAP_16BIT;
+	if (map->flags & MAP_ATTRIB)
+		map->static_start += SZ_2K;
+	return 0;
+}
+
+static struct pccard_operations omap_cf_ops = {
+	.init			= omap_cf_ss_init,
+	.suspend		= omap_cf_ss_suspend,
+	.get_status		= omap_cf_get_status,
+	.set_socket		= omap_cf_set_socket,
+	.set_io_map		= omap_cf_set_io_map,
+	.set_mem_map		= omap_cf_set_mem_map,
+};
+
+/*--------------------------------------------------------------------------*/
+
+/*
+ * NOTE:  right now the only board-specific platform_data is
+ * "what chipselect is used".  Boards could want more.
+ */
+
+static int __init omap_cf_probe(struct platform_device *pdev)
+{
+	unsigned		seg;
+	struct omap_cf_socket	*cf;
+	int			irq;
+	int			status;
+	struct resource		*res;
+	struct resource		iospace = DEFINE_RES_IO(SZ_64, SZ_4K);
+
+	seg = (int) pdev->dev.platform_data;
+	if (seg == 0 || seg > 3)
+		return -ENODEV;
+
+	/* either CFLASH.IREQ (INT_1610_CF) or some GPIO */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
+	cf = kzalloc_obj(*cf);
+	if (!cf)
+		return -ENOMEM;
+	timer_setup(&cf->timer, omap_cf_timer, 0);
+
+	cf->pdev = pdev;
+	platform_set_drvdata(pdev, cf);
+
+	/* this primarily just shuts up irq handling noise */
+	status = request_irq(irq, omap_cf_irq, IRQF_SHARED,
+			driver_name, cf);
+	if (status < 0)
+		goto fail0;
+	cf->irq = irq;
+	cf->socket.pci_irq = irq;
+	cf->phys_cf = res->start;
+
+	/* pcmcia layer only remaps "real" memory */
+	cf->socket.io_offset = iospace.start;
+	status = pci_remap_iospace(&iospace, cf->phys_cf + SZ_4K);
+	if (status) {
+		status = -ENOMEM;
+		goto fail1;
+	}
+
+	if (!request_mem_region(cf->phys_cf, SZ_8K, driver_name)) {
+		status = -ENXIO;
+		goto fail1;
+	}
+
+	/* NOTE:  CF conflicts with MMC1 */
+	omap_cfg_reg(W11_1610_CF_CD1);
+	omap_cfg_reg(P11_1610_CF_CD2);
+	omap_cfg_reg(R11_1610_CF_IOIS16);
+	omap_cfg_reg(V10_1610_CF_IREQ);
+	omap_cfg_reg(W10_1610_CF_RESET);
+
+	omap_writew(~(1 << seg), CF_CFG);
+
+	pr_info("%s: cs%d on irq %d\n", driver_name, seg, irq);
+
+	/* CF uses armxor_ck, which is "always" available */
+
+	pr_debug("%s: sts %04x cfg %04x control %04x %s\n", driver_name,
+		omap_readw(CF_STATUS), omap_readw(CF_CFG),
+		omap_readw(CF_CONTROL),
+		omap_cf_present() ? "present" : "(not present)");
+
+	cf->socket.owner = THIS_MODULE;
+	cf->socket.dev.parent = &pdev->dev;
+	cf->socket.ops = &omap_cf_ops;
+	cf->socket.resource_ops = &pccard_static_ops;
+	cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP
+				| SS_CAP_MEM_ALIGN;
+	cf->socket.map_size = SZ_2K;
+	cf->socket.io[0].res = &cf->iomem;
+
+	status = pcmcia_register_socket(&cf->socket);
+	if (status < 0)
+		goto fail2;
+
+	cf->active = 1;
+	mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
+	return 0;
+
+fail2:
+	release_mem_region(cf->phys_cf, SZ_8K);
+fail1:
+	free_irq(irq, cf);
+fail0:
+	kfree(cf);
+	return status;
+}
+
+static void __exit omap_cf_remove(struct platform_device *pdev)
+{
+	struct omap_cf_socket *cf = platform_get_drvdata(pdev);
+
+	cf->active = 0;
+	pcmcia_unregister_socket(&cf->socket);
+	timer_shutdown_sync(&cf->timer);
+	release_mem_region(cf->phys_cf, SZ_8K);
+	free_irq(cf->irq, cf);
+	kfree(cf);
+}
+
+/*
+ * omap_cf_remove() lives in .exit.text. For drivers registered via
+ * platform_driver_probe() this is ok because they cannot get unbound at
+ * runtime. So mark the driver struct with __refdata to prevent modpost
+ * triggering a section mismatch warning.
+ */
+static struct platform_driver omap_cf_driver __refdata = {
+	.driver = {
+		.name	= driver_name,
+	},
+	.remove		= __exit_p(omap_cf_remove),
+};
+
+static int __init omap_cf_init(void)
+{
+	if (cpu_is_omap16xx())
+		return platform_driver_probe(&omap_cf_driver, omap_cf_probe);
+	return -ENODEV;
+}
+
+static void __exit omap_cf_exit(void)
+{
+	if (cpu_is_omap16xx())
+		platform_driver_unregister(&omap_cf_driver);
+}
+
+module_init(omap_cf_init);
+module_exit(omap_cf_exit);
+
+MODULE_DESCRIPTION("OMAP CF Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap_cf");

linux-7.2.3/drivers/pcmcia/pcmcia_cis.c

@@ -0,0 +1,434 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PCMCIA high-level CIS access functions
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Copyright (C) 1999	     David A. Hinds
+ * Copyright (C) 2004-2010   Dominik Brodowski
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+#include <pcmcia/cisreg.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ss.h>
+#include <pcmcia/ds.h>
+#include "cs_internal.h"
+
+
+/**
+ * pccard_read_tuple() - internal CIS tuple access
+ * @s:		the struct pcmcia_socket where the card is inserted
+ * @function:	the device function we loop for
+ * @code:	which CIS code shall we look for?
+ * @parse:	buffer where the tuple shall be parsed (or NULL, if no parse)
+ *
+ * pccard_read_tuple() reads out one tuple and attempts to parse it
+ */
+int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
+		cisdata_t code, void *parse)
+{
+	tuple_t tuple;
+	cisdata_t *buf;
+	int ret;
+
+	buf = kmalloc(256, GFP_KERNEL);
+	if (buf == NULL) {
+		dev_warn(&s->dev, "no memory to read tuple\n");
+		return -ENOMEM;
+	}
+	tuple.DesiredTuple = code;
+	tuple.Attributes = 0;
+	if (function == BIND_FN_ALL)
+		tuple.Attributes = TUPLE_RETURN_COMMON;
+	ret = pccard_get_first_tuple(s, function, &tuple);
+	if (ret != 0)
+		goto done;
+	tuple.TupleData = buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	ret = pccard_get_tuple_data(s, &tuple);
+	if (ret != 0)
+		goto done;
+	ret = pcmcia_parse_tuple(&tuple, parse);
+done:
+	kfree(buf);
+	return ret;
+}
+
+
+/**
+ * pccard_loop_tuple() - loop over tuples in the CIS
+ * @s:		the struct pcmcia_socket where the card is inserted
+ * @function:	the device function we loop for
+ * @code:	which CIS code shall we look for?
+ * @parse:	buffer where the tuple shall be parsed (or NULL, if no parse)
+ * @priv_data:	private data to be passed to the loop_tuple function.
+ * @loop_tuple:	function to call for each CIS entry of type @function. IT
+ *		gets passed the raw tuple, the paresed tuple (if @parse is
+ *		set) and @priv_data.
+ *
+ * pccard_loop_tuple() loops over all CIS entries of type @function, and
+ * calls the @loop_tuple function for each entry. If the call to @loop_tuple
+ * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
+ */
+static int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function,
+			     cisdata_t code, cisparse_t *parse, void *priv_data,
+			     int (*loop_tuple) (tuple_t *tuple,
+					 cisparse_t *parse,
+					 void *priv_data))
+{
+	tuple_t tuple;
+	cisdata_t *buf;
+	int ret;
+
+	buf = kzalloc(256, GFP_KERNEL);
+	if (buf == NULL) {
+		dev_warn(&s->dev, "no memory to read tuple\n");
+		return -ENOMEM;
+	}
+
+	tuple.TupleData = buf;
+	tuple.TupleDataMax = 255;
+	tuple.TupleOffset = 0;
+	tuple.DesiredTuple = code;
+	tuple.Attributes = 0;
+
+	ret = pccard_get_first_tuple(s, function, &tuple);
+	while (!ret) {
+		if (pccard_get_tuple_data(s, &tuple))
+			goto next_entry;
+
+		if (parse)
+			if (pcmcia_parse_tuple(&tuple, parse))
+				goto next_entry;
+
+		ret = loop_tuple(&tuple, parse, priv_data);
+		if (!ret)
+			break;
+
+next_entry:
+		ret = pccard_get_next_tuple(s, function, &tuple);
+	}
+
+	kfree(buf);
+	return ret;
+}
+
+
+/*
+ * pcmcia_io_cfg_data_width() - convert cfgtable to data path width parameter
+ */
+static int pcmcia_io_cfg_data_width(unsigned int flags)
+{
+	if (!(flags & CISTPL_IO_8BIT))
+		return IO_DATA_PATH_WIDTH_16;
+	if (!(flags & CISTPL_IO_16BIT))
+		return IO_DATA_PATH_WIDTH_8;
+	return IO_DATA_PATH_WIDTH_AUTO;
+}
+
+
+struct pcmcia_cfg_mem {
+	struct pcmcia_device *p_dev;
+	int (*conf_check) (struct pcmcia_device *p_dev, void *priv_data);
+	void *priv_data;
+	cisparse_t parse;
+	cistpl_cftable_entry_t dflt;
+};
+
+/*
+ * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config()
+ *
+ * pcmcia_do_loop_config() is the internal callback for the call from
+ * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred
+ * by a struct pcmcia_cfg_mem.
+ */
+static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv)
+{
+	struct pcmcia_cfg_mem *cfg_mem = priv;
+	struct pcmcia_device *p_dev = cfg_mem->p_dev;
+	cistpl_cftable_entry_t *cfg = &parse->cftable_entry;
+	cistpl_cftable_entry_t *dflt = &cfg_mem->dflt;
+	unsigned int flags = p_dev->config_flags;
+	unsigned int vcc = p_dev->socket->socket.Vcc;
+
+	dev_dbg(&p_dev->dev, "testing configuration %x, autoconf %x\n",
+		cfg->index, flags);
+
+	/* default values */
+	cfg_mem->p_dev->config_index = cfg->index;
+	if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
+		cfg_mem->dflt = *cfg;
+
+	/* check for matching Vcc? */
+	if (flags & CONF_AUTO_CHECK_VCC) {
+		if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
+			if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
+				return -ENODEV;
+		} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
+			if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
+				return -ENODEV;
+		}
+	}
+
+	/* set Vpp? */
+	if (flags & CONF_AUTO_SET_VPP) {
+		if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
+			p_dev->vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+		else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
+			p_dev->vpp =
+				dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+	}
+
+	/* enable audio? */
+	if ((flags & CONF_AUTO_AUDIO) && (cfg->flags & CISTPL_CFTABLE_AUDIO))
+		p_dev->config_flags |= CONF_ENABLE_SPKR;
+
+
+	/* IO window settings? */
+	if (flags & CONF_AUTO_SET_IO) {
+		cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
+		int i = 0;
+
+		p_dev->resource[0]->start = p_dev->resource[0]->end = 0;
+		p_dev->resource[1]->start = p_dev->resource[1]->end = 0;
+		if (io->nwin == 0)
+			return -ENODEV;
+
+		p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+		p_dev->resource[0]->flags |=
+					pcmcia_io_cfg_data_width(io->flags);
+		if (io->nwin > 1) {
+			/* For multifunction cards, by convention, we
+			 * configure the network function with window 0,
+			 * and serial with window 1 */
+			i = (io->win[1].len > io->win[0].len);
+			p_dev->resource[1]->flags = p_dev->resource[0]->flags;
+			p_dev->resource[1]->start = io->win[1-i].base;
+			p_dev->resource[1]->end = io->win[1-i].len;
+		}
+		p_dev->resource[0]->start = io->win[i].base;
+		p_dev->resource[0]->end = io->win[i].len;
+		p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
+	}
+
+	/* MEM window settings? */
+	if (flags & CONF_AUTO_SET_IOMEM) {
+		/* so far, we only set one memory window */
+		cistpl_mem_t *mem = (cfg->mem.nwin) ? &cfg->mem : &dflt->mem;
+
+		p_dev->resource[2]->start = p_dev->resource[2]->end = 0;
+		if (mem->nwin == 0)
+			return -ENODEV;
+
+		p_dev->resource[2]->start = mem->win[0].host_addr;
+		p_dev->resource[2]->end = mem->win[0].len;
+		if (p_dev->resource[2]->end < 0x1000)
+			p_dev->resource[2]->end = 0x1000;
+		p_dev->card_addr = mem->win[0].card_addr;
+	}
+
+	dev_dbg(&p_dev->dev,
+		"checking configuration %x: %pr %pr %pr (%d lines)\n",
+		p_dev->config_index, p_dev->resource[0], p_dev->resource[1],
+		p_dev->resource[2], p_dev->io_lines);
+
+	return cfg_mem->conf_check(p_dev, cfg_mem->priv_data);
+}
+
+/**
+ * pcmcia_loop_config() - loop over configuration options
+ * @p_dev:	the struct pcmcia_device which we need to loop for.
+ * @conf_check:	function to call for each configuration option.
+ *		It gets passed the struct pcmcia_device and private data
+ *		being passed to pcmcia_loop_config()
+ * @priv_data:	private data to be passed to the conf_check function.
+ *
+ * pcmcia_loop_config() loops over all configuration options, and calls
+ * the driver-specific conf_check() for each one, checking whether
+ * it is a valid one. Returns 0 on success or errorcode otherwise.
+ */
+int pcmcia_loop_config(struct pcmcia_device *p_dev,
+		       int	(*conf_check)	(struct pcmcia_device *p_dev,
+						 void *priv_data),
+		       void *priv_data)
+{
+	struct pcmcia_cfg_mem *cfg_mem;
+	int ret;
+
+	cfg_mem = kzalloc_obj(struct pcmcia_cfg_mem);
+	if (cfg_mem == NULL)
+		return -ENOMEM;
+
+	cfg_mem->p_dev = p_dev;
+	cfg_mem->conf_check = conf_check;
+	cfg_mem->priv_data = priv_data;
+
+	ret = pccard_loop_tuple(p_dev->socket, p_dev->func,
+				CISTPL_CFTABLE_ENTRY, &cfg_mem->parse,
+				cfg_mem, pcmcia_do_loop_config);
+
+	kfree(cfg_mem);
+	return ret;
+}
+EXPORT_SYMBOL(pcmcia_loop_config);
+
+
+struct pcmcia_loop_mem {
+	struct pcmcia_device *p_dev;
+	void *priv_data;
+	int (*loop_tuple) (struct pcmcia_device *p_dev,
+			   tuple_t *tuple,
+			   void *priv_data);
+};
+
+/*
+ * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config()
+ *
+ * pcmcia_do_loop_tuple() is the internal callback for the call from
+ * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred
+ * by a struct pcmcia_cfg_mem.
+ */
+static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv)
+{
+	struct pcmcia_loop_mem *loop = priv;
+
+	return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data);
+};
+
+/**
+ * pcmcia_loop_tuple() - loop over tuples in the CIS
+ * @p_dev:	the struct pcmcia_device which we need to loop for.
+ * @code:	which CIS code shall we look for?
+ * @priv_data:	private data to be passed to the loop_tuple function.
+ * @loop_tuple:	function to call for each CIS entry of type @function. IT
+ *		gets passed the raw tuple and @priv_data.
+ *
+ * pcmcia_loop_tuple() loops over all CIS entries of type @function, and
+ * calls the @loop_tuple function for each entry. If the call to @loop_tuple
+ * returns 0, the loop exits. Returns 0 on success or errorcode otherwise.
+ */
+int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code,
+		      int (*loop_tuple) (struct pcmcia_device *p_dev,
+					 tuple_t *tuple,
+					 void *priv_data),
+		      void *priv_data)
+{
+	struct pcmcia_loop_mem loop = {
+		.p_dev = p_dev,
+		.loop_tuple = loop_tuple,
+		.priv_data = priv_data};
+
+	return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL,
+				 &loop, pcmcia_do_loop_tuple);
+}
+EXPORT_SYMBOL(pcmcia_loop_tuple);
+
+
+struct pcmcia_loop_get {
+	size_t len;
+	cisdata_t **buf;
+};
+
+/*
+ * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple()
+ *
+ * pcmcia_do_get_tuple() is the internal callback for the call from
+ * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in
+ * the first tuple, return 0 unconditionally. Create a memory buffer large
+ * enough to hold the content of the tuple, and fill it with the tuple data.
+ * The caller is responsible to free the buffer.
+ */
+static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple,
+			       void *priv)
+{
+	struct pcmcia_loop_get *get = priv;
+
+	*get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL);
+	if (*get->buf) {
+		get->len = tuple->TupleDataLen;
+		memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen);
+	} else
+		dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n");
+	return 0;
+}
+
+/**
+ * pcmcia_get_tuple() - get first tuple from CIS
+ * @p_dev:	the struct pcmcia_device which we need to loop for.
+ * @code:	which CIS code shall we look for?
+ * @buf:        pointer to store the buffer to.
+ *
+ * pcmcia_get_tuple() gets the content of the first CIS entry of type @code.
+ * It returns the buffer length (or zero). The caller is responsible to free
+ * the buffer passed in @buf.
+ */
+size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code,
+			unsigned char **buf)
+{
+	struct pcmcia_loop_get get = {
+		.len = 0,
+		.buf = buf,
+	};
+
+	*get.buf = NULL;
+	pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get);
+
+	return get.len;
+}
+EXPORT_SYMBOL(pcmcia_get_tuple);
+
+#ifdef CONFIG_NET
+/*
+ * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis()
+ *
+ * pcmcia_do_get_mac() is the internal callback for the call from
+ * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the
+ * tuple contains a proper LAN_NODE_ID of length 6, and copy the data
+ * to struct net_device->dev_addr[i].
+ */
+static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple,
+			     void *priv)
+{
+	struct net_device *dev = priv;
+
+	if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID)
+		return -EINVAL;
+	if (tuple->TupleDataLen < ETH_ALEN + 2) {
+		dev_warn(&p_dev->dev, "Invalid CIS tuple length for "
+			"LAN_NODE_ID\n");
+		return -EINVAL;
+	}
+
+	if (tuple->TupleData[1] != ETH_ALEN) {
+		dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n");
+		return -EINVAL;
+	}
+	eth_hw_addr_set(dev, &tuple->TupleData[2]);
+	return 0;
+}
+
+/**
+ * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE
+ * @p_dev:	the struct pcmcia_device for which we want the address.
+ * @dev:	a properly prepared struct net_device to store the info to.
+ *
+ * pcmcia_get_mac_from_cis() reads out the hardware MAC address from
+ * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which
+ * must be set up properly by the driver (see examples!).
+ */
+int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev)
+{
+	return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev);
+}
+EXPORT_SYMBOL(pcmcia_get_mac_from_cis);
+
+#endif /* CONFIG_NET */

linux-7.2.3/drivers/pcmcia/pcmcia_resource.c

@@ -0,0 +1,955 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PCMCIA 16-bit resource management functions
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Copyright (C) 1999	     David A. Hinds
+ * Copyright (C) 2004-2010   Dominik Brodowski
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+
+#include <asm/irq.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+
+#include "cs_internal.h"
+
+
+/* Access speed for IO windows */
+static int io_speed;
+module_param(io_speed, int, 0444);
+
+
+int pcmcia_validate_mem(struct pcmcia_socket *s)
+{
+	if (s->resource_ops->validate_mem)
+		return s->resource_ops->validate_mem(s);
+	/* if there is no callback, we can assume that everything is OK */
+	return 0;
+}
+
+struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
+				 int low, struct pcmcia_socket *s)
+{
+	if (s->resource_ops->find_mem)
+		return s->resource_ops->find_mem(base, num, align, low, s);
+	return NULL;
+}
+
+
+/**
+ * release_io_space() - release IO ports allocated with alloc_io_space()
+ * @s: pcmcia socket
+ * @res: resource to release
+ *
+ */
+static void release_io_space(struct pcmcia_socket *s, struct resource *res)
+{
+	resource_size_t num = resource_size(res);
+	int i;
+
+	dev_dbg(&s->dev, "release_io_space for %pR\n", res);
+
+	for (i = 0; i < MAX_IO_WIN; i++) {
+		if (!s->io[i].res)
+			continue;
+		if ((s->io[i].res->start <= res->start) &&
+		    (s->io[i].res->end >= res->end)) {
+			s->io[i].InUse -= num;
+			if (res->parent)
+				release_resource(res);
+			res->start = res->end = 0;
+			res->flags = IORESOURCE_IO;
+			/* Free the window if no one else is using it */
+			if (s->io[i].InUse == 0) {
+				release_resource(s->io[i].res);
+				kfree(s->io[i].res);
+				s->io[i].res = NULL;
+			}
+		}
+	}
+}
+
+
+/**
+ * alloc_io_space() - allocate IO ports for use by a PCMCIA device
+ * @s: pcmcia socket
+ * @res: resource to allocate (begin: begin, end: size)
+ * @lines: number of IO lines decoded by the PCMCIA card
+ *
+ * Special stuff for managing IO windows, because they are scarce
+ */
+static int alloc_io_space(struct pcmcia_socket *s, struct resource *res,
+			unsigned int lines)
+{
+	unsigned int align;
+	unsigned int base = res->start;
+	unsigned int num = res->end;
+	int ret;
+
+	res->flags |= IORESOURCE_IO;
+
+	dev_dbg(&s->dev, "alloc_io_space request for %pR, %d lines\n",
+		res, lines);
+
+	align = base ? (lines ? 1<<lines : 0) : 1;
+	if (align && (align < num)) {
+		if (base) {
+			dev_dbg(&s->dev, "odd IO request\n");
+			align = 0;
+		} else
+			while (align && (align < num))
+				align <<= 1;
+	}
+	if (base & ~(align-1)) {
+		dev_dbg(&s->dev, "odd IO request\n");
+		align = 0;
+	}
+
+	ret = s->resource_ops->find_io(s, res->flags, &base, num, align,
+				&res->parent);
+	if (ret) {
+		dev_dbg(&s->dev, "alloc_io_space request failed (%d)\n", ret);
+		return -EINVAL;
+	}
+
+	res->start = base;
+	res->end = res->start + num - 1;
+
+	if (res->parent) {
+		ret = request_resource(res->parent, res);
+		if (ret) {
+			dev_warn(&s->dev,
+				"request_resource %pR failed: %d\n", res, ret);
+			res->parent = NULL;
+			release_io_space(s, res);
+		}
+	}
+	dev_dbg(&s->dev, "alloc_io_space request result %d: %pR\n", ret, res);
+	return ret;
+}
+
+
+/*
+ * pcmcia_access_config() - read or write card configuration registers
+ *
+ * pcmcia_access_config() reads and writes configuration registers in
+ * attribute memory.  Memory window 0 is reserved for this and the tuple
+ * reading services. Drivers must use pcmcia_read_config_byte() or
+ * pcmcia_write_config_byte().
+ */
+static int pcmcia_access_config(struct pcmcia_device *p_dev,
+				off_t where, u8 *val,
+				int (*accessf) (struct pcmcia_socket *s,
+						int attr, unsigned int addr,
+						unsigned int len, void *ptr))
+{
+	struct pcmcia_socket *s;
+	config_t *c;
+	int addr;
+	int ret = 0;
+
+	s = p_dev->socket;
+
+	mutex_lock(&s->ops_mutex);
+	c = p_dev->function_config;
+
+	if (!(c->state & CONFIG_LOCKED)) {
+		dev_dbg(&p_dev->dev, "Configuration isn't locked\n");
+		mutex_unlock(&s->ops_mutex);
+		return -EACCES;
+	}
+
+	addr = (p_dev->config_base + where) >> 1;
+
+	ret = accessf(s, 1, addr, 1, val);
+
+	mutex_unlock(&s->ops_mutex);
+
+	return ret;
+}
+
+
+/*
+ * pcmcia_read_config_byte() - read a byte from a card configuration register
+ *
+ * pcmcia_read_config_byte() reads a byte from a configuration register in
+ * attribute memory.
+ */
+int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val)
+{
+	return pcmcia_access_config(p_dev, where, val, pcmcia_read_cis_mem);
+}
+EXPORT_SYMBOL(pcmcia_read_config_byte);
+
+
+/*
+ * pcmcia_write_config_byte() - write a byte to a card configuration register
+ *
+ * pcmcia_write_config_byte() writes a byte to a configuration register in
+ * attribute memory.
+ */
+int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val)
+{
+	return pcmcia_access_config(p_dev, where, &val, pcmcia_write_cis_mem);
+}
+EXPORT_SYMBOL(pcmcia_write_config_byte);
+
+
+/**
+ * pcmcia_map_mem_page() - modify iomem window to point to a different offset
+ * @p_dev: pcmcia device
+ * @res: iomem resource already enabled by pcmcia_request_window()
+ * @offset: card_offset to map
+ *
+ * pcmcia_map_mem_page() modifies what can be read and written by accessing
+ * an iomem range previously enabled by pcmcia_request_window(), by setting
+ * the card_offset value to @offset.
+ */
+int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res,
+			unsigned int offset)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	unsigned int w;
+	int ret;
+
+	w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1;
+	if (w >= MAX_WIN)
+		return -EINVAL;
+
+	mutex_lock(&s->ops_mutex);
+	s->win[w].card_start = offset;
+	ret = s->ops->set_mem_map(s, &s->win[w]);
+	if (ret)
+		dev_warn(&p_dev->dev, "failed to set_mem_map\n");
+	mutex_unlock(&s->ops_mutex);
+	return ret;
+}
+EXPORT_SYMBOL(pcmcia_map_mem_page);
+
+
+/**
+ * pcmcia_fixup_iowidth() - reduce io width to 8bit
+ * @p_dev: pcmcia device
+ *
+ * pcmcia_fixup_iowidth() allows a PCMCIA device driver to reduce the
+ * IO width to 8bit after having called pcmcia_enable_device()
+ * previously.
+ */
+int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	pccard_io_map io_off = { 0, 0, 0, 0, 1 };
+	pccard_io_map io_on;
+	int i, ret = 0;
+
+	mutex_lock(&s->ops_mutex);
+
+	dev_dbg(&p_dev->dev, "fixup iowidth to 8bit\n");
+
+	if (!(s->state & SOCKET_PRESENT) ||
+		!(p_dev->function_config->state & CONFIG_LOCKED)) {
+		dev_dbg(&p_dev->dev, "No card? Config not locked?\n");
+		ret = -EACCES;
+		goto unlock;
+	}
+
+	io_on.speed = io_speed;
+	for (i = 0; i < MAX_IO_WIN; i++) {
+		if (!s->io[i].res)
+			continue;
+		io_off.map = i;
+		io_on.map = i;
+
+		io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
+		io_on.start = s->io[i].res->start;
+		io_on.stop = s->io[i].res->end;
+
+		s->ops->set_io_map(s, &io_off);
+		msleep(40);
+		s->ops->set_io_map(s, &io_on);
+	}
+unlock:
+	mutex_unlock(&s->ops_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL(pcmcia_fixup_iowidth);
+
+
+/**
+ * pcmcia_fixup_vpp() - set Vpp to a new voltage level
+ * @p_dev: pcmcia device
+ * @new_vpp: new Vpp voltage
+ *
+ * pcmcia_fixup_vpp() allows a PCMCIA device driver to set Vpp to
+ * a new voltage level between calls to pcmcia_enable_device()
+ * and pcmcia_disable_device().
+ */
+int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	int ret = 0;
+
+	mutex_lock(&s->ops_mutex);
+
+	dev_dbg(&p_dev->dev, "fixup Vpp to %d\n", new_vpp);
+
+	if (!(s->state & SOCKET_PRESENT) ||
+		!(p_dev->function_config->state & CONFIG_LOCKED)) {
+		dev_dbg(&p_dev->dev, "No card? Config not locked?\n");
+		ret = -EACCES;
+		goto unlock;
+	}
+
+	s->socket.Vpp = new_vpp;
+	if (s->ops->set_socket(s, &s->socket)) {
+		dev_warn(&p_dev->dev, "Unable to set VPP\n");
+		ret = -EIO;
+		goto unlock;
+	}
+	p_dev->vpp = new_vpp;
+
+unlock:
+	mutex_unlock(&s->ops_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL(pcmcia_fixup_vpp);
+
+
+/**
+ * pcmcia_release_configuration() - physically disable a PCMCIA device
+ * @p_dev: pcmcia device
+ *
+ * pcmcia_release_configuration() is the 1:1 counterpart to
+ * pcmcia_enable_device(): If a PCMCIA device is no longer used by any
+ * driver, the Vpp voltage is set to 0, IRQs will no longer be generated,
+ * and I/O ranges will be disabled. As pcmcia_release_io() and
+ * pcmcia_release_window() still need to be called, device drivers are
+ * expected to call pcmcia_disable_device() instead.
+ */
+int pcmcia_release_configuration(struct pcmcia_device *p_dev)
+{
+	pccard_io_map io = { 0, 0, 0, 0, 1 };
+	struct pcmcia_socket *s = p_dev->socket;
+	config_t *c;
+	int i;
+
+	mutex_lock(&s->ops_mutex);
+	c = p_dev->function_config;
+	if (p_dev->_locked) {
+		p_dev->_locked = 0;
+		if (--(s->lock_count) == 0) {
+			s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
+			s->socket.Vpp = 0;
+			s->socket.io_irq = 0;
+			s->ops->set_socket(s, &s->socket);
+		}
+	}
+	if (c->state & CONFIG_LOCKED) {
+		c->state &= ~CONFIG_LOCKED;
+		if (c->state & CONFIG_IO_REQ)
+			for (i = 0; i < MAX_IO_WIN; i++) {
+				if (!s->io[i].res)
+					continue;
+				s->io[i].Config--;
+				if (s->io[i].Config != 0)
+					continue;
+				io.map = i;
+				s->ops->set_io_map(s, &io);
+			}
+	}
+	mutex_unlock(&s->ops_mutex);
+
+	return 0;
+}
+
+
+/**
+ * pcmcia_release_io() - release I/O allocated by a PCMCIA device
+ * @p_dev: pcmcia device
+ *
+ * pcmcia_release_io() releases the I/O ranges allocated by a PCMCIA
+ * device.  This may be invoked some time after a card ejection has
+ * already dumped the actual socket configuration, so if the client is
+ * "stale", we don't bother checking the port ranges against the
+ * current socket values.
+ */
+static void pcmcia_release_io(struct pcmcia_device *p_dev)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	config_t *c;
+
+	mutex_lock(&s->ops_mutex);
+	if (!p_dev->_io)
+		goto out;
+
+	c = p_dev->function_config;
+
+	release_io_space(s, &c->io[0]);
+
+	if (c->io[1].end)
+		release_io_space(s, &c->io[1]);
+
+	p_dev->_io = 0;
+	c->state &= ~CONFIG_IO_REQ;
+
+out:
+	mutex_unlock(&s->ops_mutex);
+} /* pcmcia_release_io */
+
+
+/**
+ * pcmcia_release_window() - release reserved iomem for PCMCIA devices
+ * @p_dev: pcmcia device
+ * @res: iomem resource to release
+ *
+ * pcmcia_release_window() releases &struct resource *res which was
+ * previously reserved by calling pcmcia_request_window().
+ */
+int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	pccard_mem_map *win;
+	unsigned int w;
+
+	dev_dbg(&p_dev->dev, "releasing window %pR\n", res);
+
+	w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1;
+	if (w >= MAX_WIN)
+		return -EINVAL;
+
+	mutex_lock(&s->ops_mutex);
+	win = &s->win[w];
+
+	if (!(p_dev->_win & CLIENT_WIN_REQ(w))) {
+		dev_dbg(&p_dev->dev, "not releasing unknown window\n");
+		mutex_unlock(&s->ops_mutex);
+		return -EINVAL;
+	}
+
+	/* Shut down memory window */
+	win->flags &= ~MAP_ACTIVE;
+	s->ops->set_mem_map(s, win);
+	s->state &= ~SOCKET_WIN_REQ(w);
+
+	/* Release system memory */
+	if (win->res) {
+		release_resource(res);
+		release_resource(win->res);
+		kfree(win->res);
+		win->res = NULL;
+	}
+	res->start = res->end = 0;
+	res->flags = IORESOURCE_MEM;
+	p_dev->_win &= ~CLIENT_WIN_REQ(w);
+	mutex_unlock(&s->ops_mutex);
+
+	return 0;
+} /* pcmcia_release_window */
+EXPORT_SYMBOL(pcmcia_release_window);
+
+
+/**
+ * pcmcia_enable_device() - set up and activate a PCMCIA device
+ * @p_dev: the associated PCMCIA device
+ *
+ * pcmcia_enable_device() physically enables a PCMCIA device. It parses
+ * the flags passed to in @flags and stored in @p_dev->flags and sets up
+ * the Vpp voltage, enables the speaker line, I/O ports and store proper
+ * values to configuration registers.
+ */
+int pcmcia_enable_device(struct pcmcia_device *p_dev)
+{
+	int i;
+	unsigned int base;
+	struct pcmcia_socket *s = p_dev->socket;
+	config_t *c;
+	pccard_io_map iomap;
+	unsigned char status = 0;
+	unsigned char ext_status = 0;
+	unsigned char option = 0;
+	unsigned int flags = p_dev->config_flags;
+
+	if (!(s->state & SOCKET_PRESENT))
+		return -ENODEV;
+
+	mutex_lock(&s->ops_mutex);
+	c = p_dev->function_config;
+	if (c->state & CONFIG_LOCKED) {
+		mutex_unlock(&s->ops_mutex);
+		dev_dbg(&p_dev->dev, "Configuration is locked\n");
+		return -EACCES;
+	}
+
+	/* Do power control.  We don't allow changes in Vcc. */
+	s->socket.Vpp = p_dev->vpp;
+	if (s->ops->set_socket(s, &s->socket)) {
+		mutex_unlock(&s->ops_mutex);
+		dev_warn(&p_dev->dev, "Unable to set socket state\n");
+		return -EINVAL;
+	}
+
+	/* Pick memory or I/O card, DMA mode, interrupt */
+	if (p_dev->_io || flags & CONF_ENABLE_IRQ)
+		flags |= CONF_ENABLE_IOCARD;
+	if (flags & CONF_ENABLE_IOCARD)
+		s->socket.flags |= SS_IOCARD;
+	if (flags & CONF_ENABLE_ZVCARD)
+		s->socket.flags |= SS_ZVCARD | SS_IOCARD;
+	if (flags & CONF_ENABLE_SPKR) {
+		s->socket.flags |= SS_SPKR_ENA;
+		status = CCSR_AUDIO_ENA;
+		if (!(p_dev->config_regs & PRESENT_STATUS))
+			dev_warn(&p_dev->dev, "speaker requested, but "
+					      "PRESENT_STATUS not set!\n");
+	}
+	if (flags & CONF_ENABLE_IRQ)
+		s->socket.io_irq = s->pcmcia_irq;
+	else
+		s->socket.io_irq = 0;
+	if (flags & CONF_ENABLE_ESR) {
+		p_dev->config_regs |= PRESENT_EXT_STATUS;
+		ext_status = ESR_REQ_ATTN_ENA;
+	}
+	s->ops->set_socket(s, &s->socket);
+	s->lock_count++;
+
+	dev_dbg(&p_dev->dev,
+		"enable_device: V %d, flags %x, base %x, regs %x, idx %x\n",
+		p_dev->vpp, flags, p_dev->config_base, p_dev->config_regs,
+		p_dev->config_index);
+
+	/* Set up CIS configuration registers */
+	base = p_dev->config_base;
+	if (p_dev->config_regs & PRESENT_COPY) {
+		u16 tmp = 0;
+		dev_dbg(&p_dev->dev, "clearing CISREG_SCR\n");
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &tmp);
+	}
+	if (p_dev->config_regs & PRESENT_PIN_REPLACE) {
+		u16 tmp = 0;
+		dev_dbg(&p_dev->dev, "clearing CISREG_PRR\n");
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &tmp);
+	}
+	if (p_dev->config_regs & PRESENT_OPTION) {
+		if (s->functions == 1) {
+			option = p_dev->config_index & COR_CONFIG_MASK;
+		} else {
+			option = p_dev->config_index & COR_MFC_CONFIG_MASK;
+			option |= COR_FUNC_ENA|COR_IREQ_ENA;
+			if (p_dev->config_regs & PRESENT_IOBASE_0)
+				option |= COR_ADDR_DECODE;
+		}
+		if ((flags & CONF_ENABLE_IRQ) &&
+			!(flags & CONF_ENABLE_PULSE_IRQ))
+			option |= COR_LEVEL_REQ;
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &option);
+		msleep(40);
+	}
+	if (p_dev->config_regs & PRESENT_STATUS)
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &status);
+
+	if (p_dev->config_regs & PRESENT_EXT_STATUS)
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1,
+					&ext_status);
+
+	if (p_dev->config_regs & PRESENT_IOBASE_0) {
+		u8 b = c->io[0].start & 0xff;
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
+		b = (c->io[0].start >> 8) & 0xff;
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
+	}
+	if (p_dev->config_regs & PRESENT_IOSIZE) {
+		u8 b = resource_size(&c->io[0]) + resource_size(&c->io[1]) - 1;
+		pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
+	}
+
+	/* Configure I/O windows */
+	if (c->state & CONFIG_IO_REQ) {
+		iomap.speed = io_speed;
+		for (i = 0; i < MAX_IO_WIN; i++)
+			if (s->io[i].res) {
+				iomap.map = i;
+				iomap.flags = MAP_ACTIVE;
+				switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
+				case IO_DATA_PATH_WIDTH_16:
+					iomap.flags |= MAP_16BIT; break;
+				case IO_DATA_PATH_WIDTH_AUTO:
+					iomap.flags |= MAP_AUTOSZ; break;
+				default:
+					break;
+				}
+				iomap.start = s->io[i].res->start;
+				iomap.stop = s->io[i].res->end;
+				s->ops->set_io_map(s, &iomap);
+				s->io[i].Config++;
+			}
+	}
+
+	c->state |= CONFIG_LOCKED;
+	p_dev->_locked = 1;
+	mutex_unlock(&s->ops_mutex);
+	return 0;
+} /* pcmcia_enable_device */
+EXPORT_SYMBOL(pcmcia_enable_device);
+
+
+/**
+ * pcmcia_request_io() - attempt to reserve port ranges for PCMCIA devices
+ * @p_dev: the associated PCMCIA device
+ *
+ * pcmcia_request_io() attempts to reserve the IO port ranges specified in
+ * &struct pcmcia_device @p_dev->resource[0] and @p_dev->resource[1]. The
+ * "start" value is the requested start of the IO port resource; "end"
+ * reflects the number of ports requested. The number of IO lines requested
+ * is specified in &struct pcmcia_device @p_dev->io_lines.
+ */
+int pcmcia_request_io(struct pcmcia_device *p_dev)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	config_t *c = p_dev->function_config;
+	int ret = -EINVAL;
+
+	mutex_lock(&s->ops_mutex);
+	dev_dbg(&p_dev->dev, "pcmcia_request_io: %pR , %pR",
+		&c->io[0], &c->io[1]);
+
+	if (!(s->state & SOCKET_PRESENT)) {
+		dev_dbg(&p_dev->dev, "pcmcia_request_io: No card present\n");
+		goto out;
+	}
+
+	if (c->state & CONFIG_LOCKED) {
+		dev_dbg(&p_dev->dev, "Configuration is locked\n");
+		goto out;
+	}
+	if (c->state & CONFIG_IO_REQ) {
+		dev_dbg(&p_dev->dev, "IO already configured\n");
+		goto out;
+	}
+
+	ret = alloc_io_space(s, &c->io[0], p_dev->io_lines);
+	if (ret)
+		goto out;
+
+	if (c->io[1].end) {
+		ret = alloc_io_space(s, &c->io[1], p_dev->io_lines);
+		if (ret) {
+			struct resource tmp = c->io[0];
+			/* release the previously allocated resource */
+			release_io_space(s, &c->io[0]);
+			/* but preserve the settings, for they worked... */
+			c->io[0].end = resource_size(&tmp);
+			c->io[0].start = tmp.start;
+			c->io[0].flags = tmp.flags;
+			goto out;
+		}
+	} else
+		c->io[1].start = 0;
+
+	c->state |= CONFIG_IO_REQ;
+	p_dev->_io = 1;
+
+	dev_dbg(&p_dev->dev, "pcmcia_request_io succeeded: %pR , %pR",
+		&c->io[0], &c->io[1]);
+out:
+	mutex_unlock(&s->ops_mutex);
+
+	return ret;
+} /* pcmcia_request_io */
+EXPORT_SYMBOL(pcmcia_request_io);
+
+
+/**
+ * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device
+ * @p_dev: the associated PCMCIA device
+ * @handler: IRQ handler to register
+ *
+ * pcmcia_request_irq() is a wrapper around request_irq() which allows
+ * the PCMCIA core to clean up the registration in pcmcia_disable_device().
+ * Drivers are free to use request_irq() directly, but then they need to
+ * call free_irq() themselves, too. Also, only %IRQF_SHARED capable IRQ
+ * handlers are allowed.
+ */
+int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
+				    irq_handler_t handler)
+{
+	int ret;
+
+	if (!p_dev->irq)
+		return -EINVAL;
+
+	ret = request_irq(p_dev->irq, handler, IRQF_SHARED,
+			p_dev->devname, p_dev->priv);
+	if (!ret)
+		p_dev->_irq = 1;
+
+	return ret;
+}
+EXPORT_SYMBOL(pcmcia_request_irq);
+
+
+#ifdef CONFIG_PCMCIA_PROBE
+
+/* mask of IRQs already reserved by other cards, we should avoid using them */
+static u8 pcmcia_used_irq[32];
+
+static irqreturn_t test_action(int cpl, void *dev_id)
+{
+	return IRQ_NONE;
+}
+
+/**
+ * pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used
+ * @p_dev: the associated PCMCIA device
+ * @type:  IRQ type (flags)
+ *
+ * locking note: must be called with ops_mutex locked.
+ */
+static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	unsigned int try, irq;
+	u32 mask = s->irq_mask;
+	int ret = -ENODEV;
+
+	for (try = 0; try < 64; try++) {
+		irq = try % 32;
+
+		if (irq > NR_IRQS)
+			continue;
+
+		/* marked as available by driver, not blocked by userspace? */
+		if (!((mask >> irq) & 1))
+			continue;
+
+		/* avoid an IRQ which is already used by another PCMCIA card */
+		if ((try < 32) && pcmcia_used_irq[irq])
+			continue;
+
+		/* register the correct driver, if possible, to check whether
+		 * registering a dummy handle works, i.e. if the IRQ isn't
+		 * marked as used by the kernel resource management core */
+		ret = request_irq(irq, test_action, type, p_dev->devname,
+				  p_dev);
+		if (!ret) {
+			free_irq(irq, p_dev);
+			p_dev->irq = s->pcmcia_irq = irq;
+			pcmcia_used_irq[irq]++;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+void pcmcia_cleanup_irq(struct pcmcia_socket *s)
+{
+	pcmcia_used_irq[s->pcmcia_irq]--;
+	s->pcmcia_irq = 0;
+}
+
+#else /* CONFIG_PCMCIA_PROBE */
+
+static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
+{
+	return -EINVAL;
+}
+
+void pcmcia_cleanup_irq(struct pcmcia_socket *s)
+{
+	s->pcmcia_irq = 0;
+	return;
+}
+
+#endif  /* CONFIG_PCMCIA_PROBE */
+
+
+/**
+ * pcmcia_setup_irq() - determine IRQ to be used for device
+ * @p_dev: the associated PCMCIA device
+ *
+ * locking note: must be called with ops_mutex locked.
+ */
+int pcmcia_setup_irq(struct pcmcia_device *p_dev)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+
+	if (p_dev->irq)
+		return 0;
+
+	/* already assigned? */
+	if (s->pcmcia_irq) {
+		p_dev->irq = s->pcmcia_irq;
+		return 0;
+	}
+
+	/* prefer an exclusive ISA irq */
+	if (!pcmcia_setup_isa_irq(p_dev, 0))
+		return 0;
+
+	/* but accept a shared ISA irq */
+	if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED))
+		return 0;
+
+	/* but use the PCI irq otherwise */
+	if (s->pci_irq) {
+		p_dev->irq = s->pcmcia_irq = s->pci_irq;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+
+/**
+ * pcmcia_request_window() - attempt to reserve iomem for PCMCIA devices
+ * @p_dev: the associated PCMCIA device
+ * @res: &struct resource pointing to p_dev->resource[2..5]
+ * @speed: access speed
+ *
+ * pcmcia_request_window() attepts to reserve an iomem ranges specified in
+ * &struct resource @res pointing to one of the entries in
+ * &struct pcmcia_device @p_dev->resource[2..5]. The "start" value is the
+ * requested start of the IO mem resource; "end" reflects the size
+ * requested.
+ */
+int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res,
+			unsigned int speed)
+{
+	struct pcmcia_socket *s = p_dev->socket;
+	pccard_mem_map *win;
+	u_long align;
+	int w;
+
+	dev_dbg(&p_dev->dev, "request_window %pR %d\n", res, speed);
+
+	if (!(s->state & SOCKET_PRESENT)) {
+		dev_dbg(&p_dev->dev, "No card present\n");
+		return -ENODEV;
+	}
+
+	/* Window size defaults to smallest available */
+	if (res->end == 0)
+		res->end = s->map_size;
+	align = (s->features & SS_CAP_MEM_ALIGN) ? res->end : s->map_size;
+	if (res->end & (s->map_size-1)) {
+		dev_dbg(&p_dev->dev, "invalid map size\n");
+		return -EINVAL;
+	}
+	if ((res->start && (s->features & SS_CAP_STATIC_MAP)) ||
+	    (res->start & (align-1))) {
+		dev_dbg(&p_dev->dev, "invalid base address\n");
+		return -EINVAL;
+	}
+	if (res->start)
+		align = 0;
+
+	/* Allocate system memory window */
+	mutex_lock(&s->ops_mutex);
+	for (w = 0; w < MAX_WIN; w++)
+		if (!(s->state & SOCKET_WIN_REQ(w)))
+			break;
+	if (w == MAX_WIN) {
+		dev_dbg(&p_dev->dev, "all windows are used already\n");
+		mutex_unlock(&s->ops_mutex);
+		return -EINVAL;
+	}
+
+	win = &s->win[w];
+
+	if (!(s->features & SS_CAP_STATIC_MAP)) {
+		win->res = pcmcia_find_mem_region(res->start, res->end, align,
+						0, s);
+		if (!win->res) {
+			dev_dbg(&p_dev->dev, "allocating mem region failed\n");
+			mutex_unlock(&s->ops_mutex);
+			return -EINVAL;
+		}
+	}
+	p_dev->_win |= CLIENT_WIN_REQ(w);
+
+	/* Configure the socket controller */
+	win->map = w+1;
+	win->flags = res->flags & WIN_FLAGS_MAP;
+	win->speed = speed;
+	win->card_start = 0;
+
+	if (s->ops->set_mem_map(s, win) != 0) {
+		dev_dbg(&p_dev->dev, "failed to set memory mapping\n");
+		mutex_unlock(&s->ops_mutex);
+		return -EIO;
+	}
+	s->state |= SOCKET_WIN_REQ(w);
+
+	/* Return window handle */
+	if (s->features & SS_CAP_STATIC_MAP)
+		res->start = win->static_start;
+	else
+		res->start = win->res->start;
+
+	/* convert to new-style resources */
+	res->end += res->start - 1;
+	res->flags &= ~WIN_FLAGS_REQ;
+	res->flags |= (win->map << 2) | IORESOURCE_MEM;
+	res->parent = win->res;
+	if (win->res)
+		request_resource(&iomem_resource, res);
+
+	dev_dbg(&p_dev->dev, "request_window results in %pR\n", res);
+
+	mutex_unlock(&s->ops_mutex);
+
+	return 0;
+} /* pcmcia_request_window */
+EXPORT_SYMBOL(pcmcia_request_window);
+
+
+/**
+ * pcmcia_disable_device() - disable and clean up a PCMCIA device
+ * @p_dev: the associated PCMCIA device
+ *
+ * pcmcia_disable_device() is the driver-callable counterpart to
+ * pcmcia_enable_device(): If a PCMCIA device is no longer used,
+ * drivers are expected to clean up and disable the device by calling
+ * this function. Any I/O ranges (iomem and ioports) will be released,
+ * the Vpp voltage will be set to 0, and IRQs will no longer be
+ * generated -- at least if there is no other card function (of
+ * multifunction devices) being used.
+ */
+void pcmcia_disable_device(struct pcmcia_device *p_dev)
+{
+	int i;
+
+	dev_dbg(&p_dev->dev, "disabling device\n");
+
+	for (i = 0; i < MAX_WIN; i++) {
+		struct resource *res = p_dev->resource[MAX_IO_WIN + i];
+		if (res->flags & WIN_FLAGS_REQ)
+			pcmcia_release_window(p_dev, res);
+	}
+
+	pcmcia_release_configuration(p_dev);
+	pcmcia_release_io(p_dev);
+	if (p_dev->_irq) {
+		free_irq(p_dev->irq, p_dev->priv);
+		p_dev->_irq = 0;
+	}
+}
+EXPORT_SYMBOL(pcmcia_disable_device);

linux-7.2.3/drivers/pcmcia/pd6729.c

@@ -0,0 +1,777 @@
+/*
+ * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
+ *
+ * Based on the i82092.c driver.
+ *
+ * This software may be used and distributed according to the terms of
+ * the GNU General Public License, incorporated herein by reference.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/io.h>
+
+#include <pcmcia/ss.h>
+
+
+#include "pd6729.h"
+#include "i82365.h"
+#include "cirrus.h"
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
+MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");
+
+#define MAX_SOCKETS 2
+
+/*
+ * simple helper functions
+ * External clock time, in nanoseconds.  120 ns = 8.33 MHz
+ */
+#define to_cycles(ns)	((ns)/120)
+
+#ifndef NO_IRQ
+#define NO_IRQ	((unsigned int)(0))
+#endif
+
+/*
+ * PARAMETERS
+ *  irq_mode=n
+ *     Specifies the interrupt delivery mode.  The default (1) is to use PCI
+ *     interrupts; a value of 0 selects ISA interrupts. This must be set for
+ *     correct operation of PCI card readers.
+ */
+
+static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
+
+module_param(irq_mode, int, 0444);
+MODULE_PARM_DESC(irq_mode,
+		"interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
+
+static DEFINE_SPINLOCK(port_lock);
+
+/* basic value read/write functions */
+
+static unsigned char indirect_read(struct pd6729_socket *socket,
+				   unsigned short reg)
+{
+	unsigned long port;
+	unsigned char val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port_lock, flags);
+	reg += socket->number * 0x40;
+	port = socket->io_base;
+	outb(reg, port);
+	val = inb(port + 1);
+	spin_unlock_irqrestore(&port_lock, flags);
+
+	return val;
+}
+
+static unsigned short indirect_read16(struct pd6729_socket *socket,
+				      unsigned short reg)
+{
+	unsigned long port;
+	unsigned short tmp;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port_lock, flags);
+	reg  = reg + socket->number * 0x40;
+	port = socket->io_base;
+	outb(reg, port);
+	tmp = inb(port + 1);
+	reg++;
+	outb(reg, port);
+	tmp = tmp | (inb(port + 1) << 8);
+	spin_unlock_irqrestore(&port_lock, flags);
+
+	return tmp;
+}
+
+static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
+			   unsigned char value)
+{
+	unsigned long port;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port_lock, flags);
+	reg = reg + socket->number * 0x40;
+	port = socket->io_base;
+	outb(reg, port);
+	outb(value, port + 1);
+	spin_unlock_irqrestore(&port_lock, flags);
+}
+
+static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
+			    unsigned char mask)
+{
+	unsigned long port;
+	unsigned char val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port_lock, flags);
+	reg = reg + socket->number * 0x40;
+	port = socket->io_base;
+	outb(reg, port);
+	val = inb(port + 1);
+	val |= mask;
+	outb(reg, port);
+	outb(val, port + 1);
+	spin_unlock_irqrestore(&port_lock, flags);
+}
+
+static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
+			      unsigned char mask)
+{
+	unsigned long port;
+	unsigned char val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port_lock, flags);
+	reg = reg + socket->number * 0x40;
+	port = socket->io_base;
+	outb(reg, port);
+	val = inb(port + 1);
+	val &= ~mask;
+	outb(reg, port);
+	outb(val, port + 1);
+	spin_unlock_irqrestore(&port_lock, flags);
+}
+
+static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
+			     unsigned short value)
+{
+	unsigned long port;
+	unsigned char val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port_lock, flags);
+	reg = reg + socket->number * 0x40;
+	port = socket->io_base;
+
+	outb(reg, port);
+	val = value & 255;
+	outb(val, port + 1);
+
+	reg++;
+
+	outb(reg, port);
+	val = value >> 8;
+	outb(val, port + 1);
+	spin_unlock_irqrestore(&port_lock, flags);
+}
+
+/* Interrupt handler functionality */
+
+static irqreturn_t pd6729_interrupt(int irq, void *dev)
+{
+	struct pd6729_socket *socket = (struct pd6729_socket *)dev;
+	int i;
+	int loopcount = 0;
+	int handled = 0;
+	unsigned int events, active = 0;
+
+	while (1) {
+		loopcount++;
+		if (loopcount > 20) {
+			printk(KERN_ERR "pd6729: infinite eventloop "
+			       "in interrupt\n");
+			break;
+		}
+
+		active = 0;
+
+		for (i = 0; i < MAX_SOCKETS; i++) {
+			unsigned int csc;
+
+			/* card status change register */
+			csc = indirect_read(&socket[i], I365_CSC);
+			if (csc == 0)  /* no events on this socket */
+				continue;
+
+			handled = 1;
+			events = 0;
+
+			if (csc & I365_CSC_DETECT) {
+				events |= SS_DETECT;
+				dev_vdbg(&socket[i].socket.dev,
+					"Card detected in socket %i!\n", i);
+			}
+
+			if (indirect_read(&socket[i], I365_INTCTL)
+						& I365_PC_IOCARD) {
+				/* For IO/CARDS, bit 0 means "read the card" */
+				events |= (csc & I365_CSC_STSCHG)
+						? SS_STSCHG : 0;
+			} else {
+				/* Check for battery/ready events */
+				events |= (csc & I365_CSC_BVD1)
+						? SS_BATDEAD : 0;
+				events |= (csc & I365_CSC_BVD2)
+						? SS_BATWARN : 0;
+				events |= (csc & I365_CSC_READY)
+						? SS_READY : 0;
+			}
+
+			if (events)
+				pcmcia_parse_events(&socket[i].socket, events);
+
+			active |= events;
+		}
+
+		if (active == 0) /* no more events to handle */
+			break;
+	}
+	return IRQ_RETVAL(handled);
+}
+
+/* socket functions */
+
+static void pd6729_interrupt_wrapper(struct timer_list *t)
+{
+	struct pd6729_socket *socket = timer_container_of(socket, t,
+							  poll_timer);
+
+	pd6729_interrupt(0, (void *)socket);
+	mod_timer(&socket->poll_timer, jiffies + HZ);
+}
+
+static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
+{
+	struct pd6729_socket *socket
+			= container_of(sock, struct pd6729_socket, socket);
+	unsigned int status;
+	unsigned int data;
+	struct pd6729_socket *t;
+
+	/* Interface Status Register */
+	status = indirect_read(socket, I365_STATUS);
+	*value = 0;
+
+	if ((status & I365_CS_DETECT) == I365_CS_DETECT)
+		*value |= SS_DETECT;
+
+	/*
+	 * IO cards have a different meaning of bits 0,1
+	 * Also notice the inverse-logic on the bits
+	 */
+	if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
+		/* IO card */
+		if (!(status & I365_CS_STSCHG))
+			*value |= SS_STSCHG;
+	} else {
+		/* non I/O card */
+		if (!(status & I365_CS_BVD1))
+			*value |= SS_BATDEAD;
+		if (!(status & I365_CS_BVD2))
+			*value |= SS_BATWARN;
+	}
+
+	if (status & I365_CS_WRPROT)
+		*value |= SS_WRPROT;	/* card is write protected */
+
+	if (status & I365_CS_READY)
+		*value |= SS_READY;	/* card is not busy */
+
+	if (status & I365_CS_POWERON)
+		*value |= SS_POWERON;	/* power is applied to the card */
+
+	t = (socket->number) ? socket : socket + 1;
+	indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
+	data = indirect_read16(t, PD67_EXT_DATA);
+	*value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
+
+	return 0;
+}
+
+
+static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
+{
+	struct pd6729_socket *socket
+			= container_of(sock, struct pd6729_socket, socket);
+	unsigned char reg, data;
+
+	/* First, set the global controller options */
+	indirect_write(socket, I365_GBLCTL, 0x00);
+	indirect_write(socket, I365_GENCTL, 0x00);
+
+	/* Values for the IGENC register */
+	socket->card_irq = state->io_irq;
+
+	reg = 0;
+	/* The reset bit has "inverse" logic */
+	if (!(state->flags & SS_RESET))
+		reg |= I365_PC_RESET;
+	if (state->flags & SS_IOCARD)
+		reg |= I365_PC_IOCARD;
+
+	/* IGENC, Interrupt and General Control Register */
+	indirect_write(socket, I365_INTCTL, reg);
+
+	/* Power registers */
+
+	reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
+
+	if (state->flags & SS_PWR_AUTO) {
+		dev_dbg(&sock->dev, "Auto power\n");
+		reg |= I365_PWR_AUTO;	/* automatic power mngmnt */
+	}
+	if (state->flags & SS_OUTPUT_ENA) {
+		dev_dbg(&sock->dev, "Power Enabled\n");
+		reg |= I365_PWR_OUT;	/* enable power */
+	}
+
+	switch (state->Vcc) {
+	case 0:
+		break;
+	case 33:
+		dev_dbg(&sock->dev,
+			"setting voltage to Vcc to 3.3V on socket %i\n",
+			socket->number);
+		reg |= I365_VCC_5V;
+		indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
+		break;
+	case 50:
+		dev_dbg(&sock->dev,
+			"setting voltage to Vcc to 5V on socket %i\n",
+			socket->number);
+		reg |= I365_VCC_5V;
+		indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
+		break;
+	default:
+		dev_dbg(&sock->dev,
+			"pd6729_set_socket called with invalid VCC power "
+			"value: %i\n", state->Vcc);
+		return -EINVAL;
+	}
+
+	switch (state->Vpp) {
+	case 0:
+		dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
+			socket->number);
+		break;
+	case 33:
+	case 50:
+		dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
+			socket->number);
+		reg |= I365_VPP1_5V;
+		break;
+	case 120:
+		dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
+		reg |= I365_VPP1_12V;
+		break;
+	default:
+		dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
+			"invalid VPP power value: %i\n", state->Vpp);
+		return -EINVAL;
+	}
+
+	/* only write if changed */
+	if (reg != indirect_read(socket, I365_POWER))
+		indirect_write(socket, I365_POWER, reg);
+
+	if (irq_mode == 1) {
+		/* all interrupts are to be done as PCI interrupts */
+		data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
+	} else
+		data = 0;
+
+	indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
+	indirect_write(socket, PD67_EXT_DATA, data);
+
+	/* Enable specific interrupt events */
+
+	reg = 0x00;
+	if (state->csc_mask & SS_DETECT)
+		reg |= I365_CSC_DETECT;
+
+	if (state->flags & SS_IOCARD) {
+		if (state->csc_mask & SS_STSCHG)
+			reg |= I365_CSC_STSCHG;
+	} else {
+		if (state->csc_mask & SS_BATDEAD)
+			reg |= I365_CSC_BVD1;
+		if (state->csc_mask & SS_BATWARN)
+			reg |= I365_CSC_BVD2;
+		if (state->csc_mask & SS_READY)
+			reg |= I365_CSC_READY;
+	}
+	if (irq_mode == 1)
+		reg |= 0x30;	/* management IRQ: PCI INTA# = "irq 3" */
+	indirect_write(socket, I365_CSCINT, reg);
+
+	reg = indirect_read(socket, I365_INTCTL);
+	if (irq_mode == 1)
+		reg |= 0x03;	/* card IRQ: PCI INTA# = "irq 3" */
+	else
+		reg |= socket->card_irq;
+	indirect_write(socket, I365_INTCTL, reg);
+
+	/* now clear the (probably bogus) pending stuff by doing a dummy read */
+	(void)indirect_read(socket, I365_CSC);
+
+	return 0;
+}
+
+static int pd6729_set_io_map(struct pcmcia_socket *sock,
+			     struct pccard_io_map *io)
+{
+	struct pd6729_socket *socket
+			= container_of(sock, struct pd6729_socket, socket);
+	unsigned char map, ioctl;
+
+	map = io->map;
+
+	/* Check error conditions */
+	if (map > 1) {
+		dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
+		return -EINVAL;
+	}
+
+	/* Turn off the window before changing anything */
+	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
+		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
+
+	/* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
+	   io->start, io->stop);*/
+
+	/* write the new values */
+	indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
+	indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
+
+	ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
+
+	if (io->flags & MAP_0WS)
+		ioctl |= I365_IOCTL_0WS(map);
+	if (io->flags & MAP_16BIT)
+		ioctl |= I365_IOCTL_16BIT(map);
+	if (io->flags & MAP_AUTOSZ)
+		ioctl |= I365_IOCTL_IOCS16(map);
+
+	indirect_write(socket, I365_IOCTL, ioctl);
+
+	/* Turn the window back on if needed */
+	if (io->flags & MAP_ACTIVE)
+		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
+
+	return 0;
+}
+
+static int pd6729_set_mem_map(struct pcmcia_socket *sock,
+			      struct pccard_mem_map *mem)
+{
+	struct pd6729_socket *socket
+			 = container_of(sock, struct pd6729_socket, socket);
+	unsigned short base, i;
+	unsigned char map;
+
+	map = mem->map;
+	if (map > 4) {
+		dev_warn(&sock->dev, "invalid map requested\n");
+		return -EINVAL;
+	}
+
+	if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
+		dev_warn(&sock->dev, "invalid invalid address / speed\n");
+		return -EINVAL;
+	}
+
+	/* Turn off the window before changing anything */
+	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
+		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
+
+	/* write the start address */
+	base = I365_MEM(map);
+	i = (mem->res->start >> 12) & 0x0fff;
+	if (mem->flags & MAP_16BIT)
+		i |= I365_MEM_16BIT;
+	if (mem->flags & MAP_0WS)
+		i |= I365_MEM_0WS;
+	indirect_write16(socket, base + I365_W_START, i);
+
+	/* write the stop address */
+
+	i = (mem->res->end >> 12) & 0x0fff;
+	switch (to_cycles(mem->speed)) {
+	case 0:
+		break;
+	case 1:
+		i |= I365_MEM_WS0;
+		break;
+	case 2:
+		i |= I365_MEM_WS1;
+		break;
+	default:
+		i |= I365_MEM_WS1 | I365_MEM_WS0;
+		break;
+	}
+
+	indirect_write16(socket, base + I365_W_STOP, i);
+
+	/* Take care of high byte */
+	indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
+	indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
+
+	/* card start */
+
+	i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
+	if (mem->flags & MAP_WRPROT)
+		i |= I365_MEM_WRPROT;
+	if (mem->flags & MAP_ATTRIB) {
+		/* dev_dbg(&sock->dev, "requesting attribute memory for "
+		   "socket %i\n", socket->number);*/
+		i |= I365_MEM_REG;
+	} else {
+		/* dev_dbg(&sock->dev, "requesting normal memory for "
+		   "socket %i\n", socket->number);*/
+	}
+	indirect_write16(socket, base + I365_W_OFF, i);
+
+	/* Enable the window if necessary */
+	if (mem->flags & MAP_ACTIVE)
+		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
+
+	return 0;
+}
+
+static int pd6729_init(struct pcmcia_socket *sock)
+{
+	int i;
+	struct resource res = { .end = 0x0fff };
+	pccard_io_map io = { 0, 0, 0, 0, 1 };
+	pccard_mem_map mem = { .res = &res, };
+
+	pd6729_set_socket(sock, &dead_socket);
+	for (i = 0; i < 2; i++) {
+		io.map = i;
+		pd6729_set_io_map(sock, &io);
+	}
+	for (i = 0; i < 5; i++) {
+		mem.map = i;
+		pd6729_set_mem_map(sock, &mem);
+	}
+
+	return 0;
+}
+
+
+/* the pccard structure and its functions */
+static struct pccard_operations pd6729_operations = {
+	.init			= pd6729_init,
+	.get_status		= pd6729_get_status,
+	.set_socket		= pd6729_set_socket,
+	.set_io_map		= pd6729_set_io_map,
+	.set_mem_map		= pd6729_set_mem_map,
+};
+
+static irqreturn_t pd6729_test(int irq, void *dev)
+{
+	pr_devel("-> hit on irq %d\n", irq);
+	return IRQ_HANDLED;
+}
+
+static int pd6729_check_irq(int irq)
+{
+	int ret;
+
+	ret = request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x",
+			  pd6729_test);
+	if (ret)
+		return -1;
+
+	free_irq(irq, pd6729_test);
+	return 0;
+}
+
+static u_int pd6729_isa_scan(void)
+{
+	u_int mask0, mask = 0;
+	int i;
+
+	if (irq_mode == 1) {
+		printk(KERN_INFO "pd6729: PCI card interrupts, "
+		       "PCI status changes\n");
+		return 0;
+	}
+
+	mask0 = PD67_MASK;
+
+	/* just find interrupts that aren't in use */
+	for (i = 0; i < 16; i++)
+		if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
+			mask |= (1 << i);
+
+	printk(KERN_INFO "pd6729: ISA irqs = ");
+	for (i = 0; i < 16; i++)
+		if (mask & (1<<i))
+			printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
+
+	if (mask == 0)
+		printk("none!");
+	else
+		printk("  polling status changes.\n");
+
+	return mask;
+}
+
+static int pd6729_pci_probe(struct pci_dev *dev,
+				      const struct pci_device_id *id)
+{
+	int i, j, ret;
+	u_int mask;
+	char configbyte;
+	struct pd6729_socket *socket;
+
+	socket = kzalloc_objs(struct pd6729_socket, MAX_SOCKETS);
+	if (!socket) {
+		dev_warn(&dev->dev, "failed to kzalloc socket.\n");
+		return -ENOMEM;
+	}
+
+	ret = pci_enable_device(dev);
+	if (ret) {
+		dev_warn(&dev->dev, "failed to enable pci_device.\n");
+		goto err_out_free_mem;
+	}
+
+	if (!pci_resource_start(dev, 0)) {
+		dev_warn(&dev->dev, "refusing to load the driver as the "
+			"io_base is NULL.\n");
+		ret = -ENOMEM;
+		goto err_out_disable;
+	}
+
+	dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
+		"on irq %d\n",
+		(unsigned long long)pci_resource_start(dev, 0), dev->irq);
+	/*
+	 * Since we have no memory BARs some firmware may not
+	 * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
+	 */
+	pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
+	if (!(configbyte & PCI_COMMAND_MEMORY)) {
+		dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
+		configbyte |= PCI_COMMAND_MEMORY;
+		pci_write_config_byte(dev, PCI_COMMAND, configbyte);
+	}
+
+	ret = pci_request_regions(dev, "pd6729");
+	if (ret) {
+		dev_warn(&dev->dev, "pci request region failed.\n");
+		goto err_out_disable;
+	}
+
+	if (dev->irq == NO_IRQ)
+		irq_mode = 0;	/* fall back to ISA interrupt mode */
+
+	mask = pd6729_isa_scan();
+	if (irq_mode == 0 && mask == 0) {
+		dev_warn(&dev->dev, "no ISA interrupt is available.\n");
+		ret = -ENODEV;
+		goto err_out_free_res;
+	}
+
+	for (i = 0; i < MAX_SOCKETS; i++) {
+		socket[i].io_base = pci_resource_start(dev, 0);
+		socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
+		socket[i].socket.map_size = 0x1000;
+		socket[i].socket.irq_mask = mask;
+		socket[i].socket.pci_irq  = dev->irq;
+		socket[i].socket.cb_dev = dev;
+		socket[i].socket.owner = THIS_MODULE;
+
+		socket[i].number = i;
+
+		socket[i].socket.ops = &pd6729_operations;
+		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
+		socket[i].socket.dev.parent = &dev->dev;
+		socket[i].socket.driver_data = &socket[i];
+	}
+
+	pci_set_drvdata(dev, socket);
+	if (irq_mode == 1) {
+		/* Register the interrupt handler */
+		ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
+				  "pd6729", socket);
+		if (ret) {
+			dev_err(&dev->dev, "Failed to register irq %d\n",
+				dev->irq);
+			goto err_out_free_res;
+		}
+	} else {
+		/* poll Card status change */
+		timer_setup(&socket->poll_timer, pd6729_interrupt_wrapper, 0);
+		mod_timer(&socket->poll_timer, jiffies + HZ);
+	}
+
+	for (i = 0; i < MAX_SOCKETS; i++) {
+		ret = pcmcia_register_socket(&socket[i].socket);
+		if (ret) {
+			dev_warn(&dev->dev, "pcmcia_register_socket failed.\n");
+			for (j = 0; j < i ; j++)
+				pcmcia_unregister_socket(&socket[j].socket);
+			goto err_out_free_res2;
+		}
+	}
+
+	return 0;
+
+err_out_free_res2:
+	if (irq_mode == 1)
+		free_irq(dev->irq, socket);
+	else
+		timer_shutdown_sync(&socket->poll_timer);
+err_out_free_res:
+	pci_release_regions(dev);
+err_out_disable:
+	pci_disable_device(dev);
+
+err_out_free_mem:
+	kfree(socket);
+	return ret;
+}
+
+static void pd6729_pci_remove(struct pci_dev *dev)
+{
+	int i;
+	struct pd6729_socket *socket = pci_get_drvdata(dev);
+
+	for (i = 0; i < MAX_SOCKETS; i++) {
+		/* Turn off all interrupt sources */
+		indirect_write(&socket[i], I365_CSCINT, 0);
+		indirect_write(&socket[i], I365_INTCTL, 0);
+
+		pcmcia_unregister_socket(&socket[i].socket);
+	}
+
+	if (irq_mode == 1)
+		free_irq(dev->irq, socket);
+	else
+		timer_shutdown_sync(&socket->poll_timer);
+	pci_release_regions(dev);
+	pci_disable_device(dev);
+
+	kfree(socket);
+}
+
+static const struct pci_device_id pd6729_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6729) },
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
+
+static struct pci_driver pd6729_pci_driver = {
+	.name		= "pd6729",
+	.id_table	= pd6729_pci_ids,
+	.probe		= pd6729_pci_probe,
+	.remove		= pd6729_pci_remove,
+};
+
+module_pci_driver(pd6729_pci_driver);

linux-7.2.3/drivers/pcmcia/pd6729.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _INCLUDE_GUARD_PD6729_H_
+#define _INCLUDE_GUARD_PD6729_H_
+
+/* Flags for I365_GENCTL */
+#define I365_DF_VS1		0x40	/* DF-step Voltage Sense */
+#define I365_DF_VS2		0x80
+
+/* Fields in PD67_EXTERN_DATA */
+#define PD67_EXD_VS1(s)		(0x01 << ((s) << 1))
+#define PD67_EXD_VS2(s)		(0x02 << ((s) << 1))
+
+/* Default ISA interrupt mask */
+#define PD67_MASK	0x0eb8	/* irq 11,10,9,7,5,4,3 */
+
+struct pd6729_socket {
+	int	number;
+	int	card_irq;
+	unsigned long io_base;	/* base io address of the socket */
+	struct pcmcia_socket socket;
+	struct timer_list poll_timer;
+};
+
+#endif

linux-7.2.3/drivers/pcmcia/pxa2xx_base.c

@@ -0,0 +1,362 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*======================================================================
+
+  Device driver for the PCMCIA control functionality of PXA2xx
+  microprocessors.
+
+
+    (c) Ian Molton (spyro@f2s.com) 2003
+    (c) Stefan Eletzhofer (stefan.eletzhofer@inquant.de) 2003,4
+
+    derived from sa11xx_base.c
+
+     Portions created by John G. Dorsey are
+     Copyright (C) 1999 John G. Dorsey.
+
+  ======================================================================*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/soc/pxa/cpu.h>
+#include <linux/soc/pxa/smemc.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+
+#include "soc_common.h"
+#include "pxa2xx_base.h"
+
+/*
+ * Personal Computer Memory Card International Association (PCMCIA) sockets
+ */
+
+#define PCMCIAPrtSp	0x04000000	/* PCMCIA Partition Space [byte]   */
+#define PCMCIASp	(4*PCMCIAPrtSp)	/* PCMCIA Space [byte]             */
+#define PCMCIAIOSp	PCMCIAPrtSp	/* PCMCIA I/O Space [byte]         */
+#define PCMCIAAttrSp	PCMCIAPrtSp	/* PCMCIA Attribute Space [byte]   */
+#define PCMCIAMemSp	PCMCIAPrtSp	/* PCMCIA Memory Space [byte]      */
+
+#define PCMCIA0Sp	PCMCIASp	/* PCMCIA 0 Space [byte]           */
+#define PCMCIA0IOSp	PCMCIAIOSp	/* PCMCIA 0 I/O Space [byte]       */
+#define PCMCIA0AttrSp	PCMCIAAttrSp	/* PCMCIA 0 Attribute Space [byte] */
+#define PCMCIA0MemSp	PCMCIAMemSp	/* PCMCIA 0 Memory Space [byte]    */
+
+#define PCMCIA1Sp	PCMCIASp	/* PCMCIA 1 Space [byte]           */
+#define PCMCIA1IOSp	PCMCIAIOSp	/* PCMCIA 1 I/O Space [byte]       */
+#define PCMCIA1AttrSp	PCMCIAAttrSp	/* PCMCIA 1 Attribute Space [byte] */
+#define PCMCIA1MemSp	PCMCIAMemSp	/* PCMCIA 1 Memory Space [byte]    */
+
+#define _PCMCIA(Nb)			/* PCMCIA [0..1]                   */ \
+			(0x20000000 + (Nb) * PCMCIASp)
+#define _PCMCIAIO(Nb)	_PCMCIA(Nb)	/* PCMCIA I/O [0..1]               */
+#define _PCMCIAAttr(Nb)			/* PCMCIA Attribute [0..1]         */ \
+			(_PCMCIA(Nb) + 2 * PCMCIAPrtSp)
+#define _PCMCIAMem(Nb)			/* PCMCIA Memory [0..1]            */ \
+			(_PCMCIA(Nb) + 3 * PCMCIAPrtSp)
+
+#define _PCMCIA0	_PCMCIA(0)	/* PCMCIA 0                        */
+#define _PCMCIA0IO	_PCMCIAIO(0)	/* PCMCIA 0 I/O                    */
+#define _PCMCIA0Attr	_PCMCIAAttr(0)	/* PCMCIA 0 Attribute              */
+#define _PCMCIA0Mem	_PCMCIAMem(0)	/* PCMCIA 0 Memory                 */
+
+#define _PCMCIA1	_PCMCIA(1)	/* PCMCIA 1                        */
+#define _PCMCIA1IO	_PCMCIAIO(1)	/* PCMCIA 1 I/O                    */
+#define _PCMCIA1Attr	_PCMCIAAttr(1)	/* PCMCIA 1 Attribute              */
+#define _PCMCIA1Mem	_PCMCIAMem(1)	/* PCMCIA 1 Memory                 */
+
+
+#define MCXX_SETUP_MASK     (0x7f)
+#define MCXX_ASST_MASK      (0x1f)
+#define MCXX_HOLD_MASK      (0x3f)
+#define MCXX_SETUP_SHIFT    (0)
+#define MCXX_ASST_SHIFT     (7)
+#define MCXX_HOLD_SHIFT     (14)
+
+static inline u_int pxa2xx_mcxx_hold(u_int pcmcia_cycle_ns,
+				     u_int mem_clk_10khz)
+{
+	u_int code = pcmcia_cycle_ns * mem_clk_10khz;
+	return (code / 300000) + ((code % 300000) ? 1 : 0) - 1;
+}
+
+static inline u_int pxa2xx_mcxx_asst(u_int pcmcia_cycle_ns,
+				     u_int mem_clk_10khz)
+{
+	u_int code = pcmcia_cycle_ns * mem_clk_10khz;
+	return (code / 300000) + ((code % 300000) ? 1 : 0) + 1;
+}
+
+static inline u_int pxa2xx_mcxx_setup(u_int pcmcia_cycle_ns,
+				      u_int mem_clk_10khz)
+{
+	u_int code = pcmcia_cycle_ns * mem_clk_10khz;
+	return (code / 100000) + ((code % 100000) ? 1 : 0) - 1;
+}
+
+/* This function returns the (approximate) command assertion period, in
+ * nanoseconds, for a given CPU clock frequency and MCXX_ASST value:
+ */
+static inline u_int pxa2xx_pcmcia_cmd_time(u_int mem_clk_10khz,
+					   u_int pcmcia_mcxx_asst)
+{
+	return (300000 * (pcmcia_mcxx_asst + 1) / mem_clk_10khz);
+}
+
+static uint32_t pxa2xx_pcmcia_mcmem(int sock, int speed, int clock)
+{
+	uint32_t val;
+
+	val = ((pxa2xx_mcxx_setup(speed, clock)
+		& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
+		| ((pxa2xx_mcxx_asst(speed, clock)
+		& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
+		| ((pxa2xx_mcxx_hold(speed, clock)
+		& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
+
+	return val;
+}
+
+static int pxa2xx_pcmcia_mcio(int sock, int speed, int clock)
+{
+	uint32_t val;
+
+	val = ((pxa2xx_mcxx_setup(speed, clock)
+		& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
+		| ((pxa2xx_mcxx_asst(speed, clock)
+		& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
+		| ((pxa2xx_mcxx_hold(speed, clock)
+		& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
+
+
+	return val;
+}
+
+static int pxa2xx_pcmcia_mcatt(int sock, int speed, int clock)
+{
+	uint32_t val;
+
+	val = ((pxa2xx_mcxx_setup(speed, clock)
+		& MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT)
+		| ((pxa2xx_mcxx_asst(speed, clock)
+		& MCXX_ASST_MASK) << MCXX_ASST_SHIFT)
+		| ((pxa2xx_mcxx_hold(speed, clock)
+		& MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT);
+
+
+	return val;
+}
+
+static int pxa2xx_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
+{
+	unsigned long clk = clk_get_rate(skt->clk) / 10000;
+	struct soc_pcmcia_timing timing;
+	int sock = skt->nr;
+
+	soc_common_pcmcia_get_timing(skt, &timing);
+
+	pxa_smemc_set_pcmcia_timing(sock,
+		pxa2xx_pcmcia_mcmem(sock, timing.mem, clk),
+		pxa2xx_pcmcia_mcatt(sock, timing.attr, clk),
+		pxa2xx_pcmcia_mcio(sock, timing.io, clk));
+
+	return 0;
+}
+
+#ifdef CONFIG_CPU_FREQ
+
+static int
+pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
+			       unsigned long val,
+			       struct cpufreq_freqs *freqs)
+{
+	switch (val) {
+	case CPUFREQ_PRECHANGE:
+		if (freqs->new > freqs->old) {
+			debug(skt, 2, "new frequency %u.%uMHz > %u.%uMHz, "
+			       "pre-updating\n",
+			       freqs->new / 1000, (freqs->new / 100) % 10,
+			       freqs->old / 1000, (freqs->old / 100) % 10);
+			pxa2xx_pcmcia_set_timing(skt);
+		}
+		break;
+
+	case CPUFREQ_POSTCHANGE:
+		if (freqs->new < freqs->old) {
+			debug(skt, 2, "new frequency %u.%uMHz < %u.%uMHz, "
+			       "post-updating\n",
+			       freqs->new / 1000, (freqs->new / 100) % 10,
+			       freqs->old / 1000, (freqs->old / 100) % 10);
+			pxa2xx_pcmcia_set_timing(skt);
+		}
+		break;
+	}
+	return 0;
+}
+#endif
+
+void pxa2xx_configure_sockets(struct device *dev, struct pcmcia_low_level *ops)
+{
+	pxa_smemc_set_pcmcia_socket(1);
+}
+EXPORT_SYMBOL(pxa2xx_configure_sockets);
+
+static const char *skt_names[] = {
+	"PCMCIA socket 0",
+	"PCMCIA socket 1",
+};
+
+#define SKT_DEV_INFO_SIZE(n) \
+	(sizeof(struct skt_dev_info) + (n)*sizeof(struct soc_pcmcia_socket))
+
+int pxa2xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt)
+{
+	skt->res_skt.start = _PCMCIA(skt->nr);
+	skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
+	skt->res_skt.name = skt_names[skt->nr];
+	skt->res_skt.flags = IORESOURCE_MEM;
+
+	skt->res_io.start = _PCMCIAIO(skt->nr);
+	skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
+	skt->res_io.name = "io";
+	skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+	skt->res_mem.start = _PCMCIAMem(skt->nr);
+	skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
+	skt->res_mem.name = "memory";
+	skt->res_mem.flags = IORESOURCE_MEM;
+
+	skt->res_attr.start = _PCMCIAAttr(skt->nr);
+	skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
+	skt->res_attr.name = "attribute";
+	skt->res_attr.flags = IORESOURCE_MEM;
+
+	return soc_pcmcia_add_one(skt);
+}
+EXPORT_SYMBOL(pxa2xx_drv_pcmcia_add_one);
+
+void pxa2xx_drv_pcmcia_ops(struct pcmcia_low_level *ops)
+{
+	/* Provide our PXA2xx specific timing routines. */
+	ops->set_timing  = pxa2xx_pcmcia_set_timing;
+#ifdef CONFIG_CPU_FREQ
+	ops->frequency_change = pxa2xx_pcmcia_frequency_change;
+#endif
+}
+EXPORT_SYMBOL(pxa2xx_drv_pcmcia_ops);
+
+static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev)
+{
+	int i, ret = 0;
+	struct pcmcia_low_level *ops;
+	struct skt_dev_info *sinfo;
+	struct soc_pcmcia_socket *skt;
+	struct clk *clk;
+
+	ops = (struct pcmcia_low_level *)dev->dev.platform_data;
+	if (!ops) {
+		ret = -ENODEV;
+		goto err0;
+	}
+
+	if (cpu_is_pxa320() && ops->nr > 1) {
+		dev_err(&dev->dev, "pxa320 supports only one pcmcia slot");
+		ret = -EINVAL;
+		goto err0;
+	}
+
+	clk = devm_clk_get(&dev->dev, NULL);
+	if (IS_ERR(clk))
+		return -ENODEV;
+
+	pxa2xx_drv_pcmcia_ops(ops);
+
+	sinfo = devm_kzalloc(&dev->dev, SKT_DEV_INFO_SIZE(ops->nr),
+			     GFP_KERNEL);
+	if (!sinfo)
+		return -ENOMEM;
+
+	sinfo->nskt = ops->nr;
+
+	/* Initialize processor specific parameters */
+	for (i = 0; i < ops->nr; i++) {
+		skt = &sinfo->skt[i];
+
+		skt->nr = ops->first + i;
+		skt->clk = clk;
+		soc_pcmcia_init_one(skt, ops, &dev->dev);
+
+		ret = pxa2xx_drv_pcmcia_add_one(skt);
+		if (ret)
+			goto err1;
+	}
+
+	pxa2xx_configure_sockets(&dev->dev, ops);
+	dev_set_drvdata(&dev->dev, sinfo);
+
+	return 0;
+
+err1:
+	while (--i >= 0)
+		soc_pcmcia_remove_one(&sinfo->skt[i]);
+
+err0:
+	return ret;
+}
+
+static void pxa2xx_drv_pcmcia_remove(struct platform_device *dev)
+{
+	struct skt_dev_info *sinfo = platform_get_drvdata(dev);
+	int i;
+
+	for (i = 0; i < sinfo->nskt; i++)
+		soc_pcmcia_remove_one(&sinfo->skt[i]);
+}
+
+static int pxa2xx_drv_pcmcia_resume(struct device *dev)
+{
+	struct pcmcia_low_level *ops = (struct pcmcia_low_level *)dev->platform_data;
+
+	pxa2xx_configure_sockets(dev, ops);
+	return 0;
+}
+
+static const struct dev_pm_ops pxa2xx_drv_pcmcia_pm_ops = {
+	.resume		= pxa2xx_drv_pcmcia_resume,
+};
+
+static struct platform_driver pxa2xx_pcmcia_driver = {
+	.probe		= pxa2xx_drv_pcmcia_probe,
+	.remove		= pxa2xx_drv_pcmcia_remove,
+	.driver		= {
+		.name	= "pxa2xx-pcmcia",
+		.pm	= &pxa2xx_drv_pcmcia_pm_ops,
+	},
+};
+
+static int __init pxa2xx_pcmcia_init(void)
+{
+	return platform_driver_register(&pxa2xx_pcmcia_driver);
+}
+
+static void __exit pxa2xx_pcmcia_exit(void)
+{
+	platform_driver_unregister(&pxa2xx_pcmcia_driver);
+}
+
+fs_initcall(pxa2xx_pcmcia_init);
+module_exit(pxa2xx_pcmcia_exit);
+
+MODULE_AUTHOR("Stefan Eletzhofer <stefan.eletzhofer@inquant.de> and Ian Molton <spyro@f2s.com>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: PXA2xx core socket driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");

linux-7.2.3/drivers/pcmcia/pxa2xx_base.h

@@ -0,0 +1,4 @@
+int pxa2xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt);
+void pxa2xx_drv_pcmcia_ops(struct pcmcia_low_level *ops);
+void pxa2xx_configure_sockets(struct device *dev, struct pcmcia_low_level *ops);
+

linux-7.2.3/drivers/pcmcia/pxa2xx_sharpsl.c

@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Sharp SL-C7xx Series PCMCIA routines
+ *
+ * Copyright (c) 2004-2005 Richard Purdie
+ *
+ * Based on Sharp's 2.4 kernel patches and pxa2xx_mainstone.c
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/hardware/scoop.h>
+
+#include <pcmcia/soc_common.h>
+
+#define	NO_KEEP_VS 0x0001
+#define SCOOP_DEV platform_scoop_config->devs
+
+static void sharpsl_pcmcia_init_reset(struct soc_pcmcia_socket *skt)
+{
+	struct scoop_pcmcia_dev *scoopdev = &SCOOP_DEV[skt->nr];
+
+	reset_scoop(scoopdev->dev);
+
+	/* Shared power controls need to be handled carefully */
+	if (platform_scoop_config->power_ctrl)
+		platform_scoop_config->power_ctrl(scoopdev->dev, 0x0000, skt->nr);
+	else
+		write_scoop_reg(scoopdev->dev, SCOOP_CPR, 0x0000);
+
+	scoopdev->keep_vs = NO_KEEP_VS;
+	scoopdev->keep_rd = 0;
+}
+
+static int sharpsl_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	if (SCOOP_DEV[skt->nr].cd_irq >= 0) {
+		skt->stat[SOC_STAT_CD].irq = SCOOP_DEV[skt->nr].cd_irq;
+		skt->stat[SOC_STAT_CD].name = SCOOP_DEV[skt->nr].cd_irq_str;
+	}
+
+	skt->socket.pci_irq = SCOOP_DEV[skt->nr].irq;
+
+	return 0;
+}
+
+static void sharpsl_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
+				    struct pcmcia_state *state)
+{
+	unsigned short cpr, csr;
+	struct device *scoop = SCOOP_DEV[skt->nr].dev;
+
+	cpr = read_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_CPR);
+
+	write_scoop_reg(scoop, SCOOP_IRM, 0x00FF);
+	write_scoop_reg(scoop, SCOOP_ISR, 0x0000);
+	write_scoop_reg(scoop, SCOOP_IRM, 0x0000);
+	csr = read_scoop_reg(scoop, SCOOP_CSR);
+	if (csr & 0x0004) {
+		/* card eject */
+		write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+		SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
+	}
+	else if (!(SCOOP_DEV[skt->nr].keep_vs & NO_KEEP_VS)) {
+		/* keep vs1,vs2 */
+		write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+		csr |= SCOOP_DEV[skt->nr].keep_vs;
+	}
+	else if (cpr & 0x0003) {
+		/* power on */
+		write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+		SCOOP_DEV[skt->nr].keep_vs = (csr & 0x00C0);
+	}
+	else {
+		/* card detect */
+	        if ((machine_is_spitz() || machine_is_borzoi()) && skt->nr == 1) {
+	                write_scoop_reg(scoop, SCOOP_CDR, 0x0000);
+	        } else {
+		        write_scoop_reg(scoop, SCOOP_CDR, 0x0002);
+	        }
+	}
+
+	state->detect = (csr & 0x0004) ? 0 : 1;
+	state->ready  = (csr & 0x0002) ? 1 : 0;
+	state->bvd1   = (csr & 0x0010) ? 1 : 0;
+	state->bvd2   = (csr & 0x0020) ? 1 : 0;
+	state->wrprot = (csr & 0x0008) ? 1 : 0;
+	state->vs_3v  = (csr & 0x0040) ? 0 : 1;
+	state->vs_Xv  = (csr & 0x0080) ? 0 : 1;
+
+	if ((cpr & 0x0080) && ((cpr & 0x8040) != 0x8040)) {
+		printk(KERN_ERR "sharpsl_pcmcia_socket_state(): CPR=%04X, Low voltage!\n", cpr);
+	}
+}
+
+
+static int sharpsl_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
+				       const socket_state_t *state)
+{
+	unsigned long flags;
+	struct device *scoop = SCOOP_DEV[skt->nr].dev;
+
+	unsigned short cpr, ncpr, ccr, nccr, mcr, nmcr, imr, nimr;
+
+	switch (state->Vcc) {
+	case	0:  	break;
+	case 	33: 	break;
+	case	50: 	break;
+	default:
+		 printk(KERN_ERR "sharpsl_pcmcia_configure_socket(): bad Vcc %u\n", state->Vcc);
+		 return -1;
+	}
+
+	if ((state->Vpp!=state->Vcc) && (state->Vpp!=0)) {
+		printk(KERN_ERR "CF slot cannot support Vpp %u\n", state->Vpp);
+		return -1;
+	}
+
+	local_irq_save(flags);
+
+	nmcr = (mcr = read_scoop_reg(scoop, SCOOP_MCR)) & ~0x0010;
+	ncpr = (cpr = read_scoop_reg(scoop, SCOOP_CPR)) & ~0x0083;
+	nccr = (ccr = read_scoop_reg(scoop, SCOOP_CCR)) & ~0x0080;
+	nimr = (imr = read_scoop_reg(scoop, SCOOP_IMR)) & ~0x003E;
+
+	if ((machine_is_spitz() || machine_is_borzoi() || machine_is_akita()) && skt->nr == 0) {
+	        ncpr |= (state->Vcc == 33) ? 0x0002 :
+		        (state->Vcc == 50) ? 0x0002 : 0;
+	} else {
+	        ncpr |= (state->Vcc == 33) ? 0x0001 :
+		        (state->Vcc == 50) ? 0x0002 : 0;
+	}
+	nmcr |= (state->flags&SS_IOCARD) ? 0x0010 : 0;
+	ncpr |= (state->flags&SS_OUTPUT_ENA) ? 0x0080 : 0;
+	nccr |= (state->flags&SS_RESET)? 0x0080: 0;
+	nimr |=	((skt->status&SS_DETECT) ? 0x0004 : 0)|
+			((skt->status&SS_READY)  ? 0x0002 : 0)|
+			((skt->status&SS_BATDEAD)? 0x0010 : 0)|
+			((skt->status&SS_BATWARN)? 0x0020 : 0)|
+			((skt->status&SS_STSCHG) ? 0x0010 : 0)|
+			((skt->status&SS_WRPROT) ? 0x0008 : 0);
+
+	if (!(ncpr & 0x0003)) {
+		SCOOP_DEV[skt->nr].keep_rd = 0;
+	} else if (!SCOOP_DEV[skt->nr].keep_rd) {
+		if (nccr & 0x0080)
+			SCOOP_DEV[skt->nr].keep_rd = 1;
+		else
+			nccr |= 0x0080;
+	}
+
+	if (mcr != nmcr)
+		write_scoop_reg(scoop, SCOOP_MCR, nmcr);
+	if (cpr != ncpr) {
+		if (platform_scoop_config->power_ctrl)
+			platform_scoop_config->power_ctrl(scoop, ncpr , skt->nr);
+		else
+		        write_scoop_reg(scoop, SCOOP_CPR, ncpr);
+	}
+	if (ccr != nccr)
+		write_scoop_reg(scoop, SCOOP_CCR, nccr);
+	if (imr != nimr)
+		write_scoop_reg(scoop, SCOOP_IMR, nimr);
+
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void sharpsl_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+	sharpsl_pcmcia_init_reset(skt);
+
+	/* Enable interrupt */
+	write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_IMR, 0x00C0);
+	write_scoop_reg(SCOOP_DEV[skt->nr].dev, SCOOP_MCR, 0x0101);
+	SCOOP_DEV[skt->nr].keep_vs = NO_KEEP_VS;
+}
+
+static void sharpsl_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+	sharpsl_pcmcia_init_reset(skt);
+}
+
+static struct pcmcia_low_level sharpsl_pcmcia_ops = {
+	.owner                  = THIS_MODULE,
+	.hw_init                = sharpsl_pcmcia_hw_init,
+	.socket_state           = sharpsl_pcmcia_socket_state,
+	.configure_socket       = sharpsl_pcmcia_configure_socket,
+	.socket_init            = sharpsl_pcmcia_socket_init,
+	.socket_suspend         = sharpsl_pcmcia_socket_suspend,
+	.first                  = 0,
+	.nr                     = 0,
+};
+
+#ifdef CONFIG_SA1100_COLLIE
+#include "sa11xx_base.h"
+
+int pcmcia_collie_init(struct device *dev)
+{
+       int ret = -ENODEV;
+
+       if (machine_is_collie())
+               ret = sa11xx_drv_pcmcia_probe(dev, &sharpsl_pcmcia_ops, 0, 1);
+
+       return ret;
+}
+
+#else
+
+static struct platform_device *sharpsl_pcmcia_device;
+
+static int __init sharpsl_pcmcia_init(void)
+{
+	int ret;
+
+	if (!platform_scoop_config)
+		return -ENODEV;
+
+	sharpsl_pcmcia_ops.nr = platform_scoop_config->num_devs;
+	sharpsl_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
+
+	if (!sharpsl_pcmcia_device)
+		return -ENOMEM;
+
+	ret = platform_device_add_data(sharpsl_pcmcia_device,
+			&sharpsl_pcmcia_ops, sizeof(sharpsl_pcmcia_ops));
+	if (ret == 0) {
+		sharpsl_pcmcia_device->dev.parent = platform_scoop_config->devs[0].dev;
+		ret = platform_device_add(sharpsl_pcmcia_device);
+	}
+
+	if (ret)
+		platform_device_put(sharpsl_pcmcia_device);
+
+	return ret;
+}
+
+static void __exit sharpsl_pcmcia_exit(void)
+{
+	platform_device_unregister(sharpsl_pcmcia_device);
+}
+
+fs_initcall(sharpsl_pcmcia_init);
+module_exit(sharpsl_pcmcia_exit);
+#endif
+
+MODULE_DESCRIPTION("Sharp SL Series PCMCIA Support");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-pcmcia");

linux-7.2.3/drivers/pcmcia/ricoh.h

@@ -0,0 +1,241 @@
+/*
+ * ricoh.h 1.9 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_RICOH_H
+#define _LINUX_RICOH_H
+
+
+#define RF5C_MODE_CTL		0x1f	/* Mode control */
+#define RF5C_PWR_CTL		0x2f	/* Mixed voltage control */
+#define RF5C_CHIP_ID		0x3a	/* Chip identification */
+#define RF5C_MODE_CTL_3		0x3b	/* Mode control 3 */
+
+/* I/O window address offset */
+#define RF5C_IO_OFF(w)		(0x36+((w)<<1))
+
+/* Flags for RF5C_MODE_CTL */
+#define RF5C_MODE_ATA		0x01	/* ATA mode */
+#define RF5C_MODE_LED_ENA	0x02	/* IRQ 12 is LED */
+#define RF5C_MODE_CA21		0x04
+#define RF5C_MODE_CA22		0x08
+#define RF5C_MODE_CA23		0x10
+#define RF5C_MODE_CA24		0x20
+#define RF5C_MODE_CA25		0x40
+#define RF5C_MODE_3STATE_BIT7	0x80
+
+/* Flags for RF5C_PWR_CTL */
+#define RF5C_PWR_VCC_3V		0x01
+#define RF5C_PWR_IREQ_HIGH	0x02
+#define RF5C_PWR_INPACK_ENA	0x04
+#define RF5C_PWR_5V_DET		0x08
+#define RF5C_PWR_TC_SEL		0x10	/* Terminal Count: irq 11 or 15 */
+#define RF5C_PWR_DREQ_LOW	0x20
+#define RF5C_PWR_DREQ_OFF	0x00	/* DREQ steering control */
+#define RF5C_PWR_DREQ_INPACK	0x40
+#define RF5C_PWR_DREQ_SPKR	0x80
+#define RF5C_PWR_DREQ_IOIS16	0xc0
+
+/* Values for RF5C_CHIP_ID */
+#define RF5C_CHIP_RF5C296	0x32
+#define RF5C_CHIP_RF5C396	0xb2
+
+/* Flags for RF5C_MODE_CTL_3 */
+#define RF5C_MCTL3_DISABLE	0x01	/* Disable PCMCIA interface */
+#define RF5C_MCTL3_DMA_ENA	0x02
+
+/* Register definitions for Ricoh PCI-to-CardBus bridges */
+
+/* Extra bits in CB_BRIDGE_CONTROL */
+#define RL5C46X_BCR_3E0_ENA		0x0800
+#define RL5C46X_BCR_3E2_ENA		0x1000
+
+/* Bridge Configuration Register */
+#define RL5C4XX_CONFIG			0x80	/* 16 bit */
+#define  RL5C4XX_CONFIG_IO_1_MODE	0x0200
+#define  RL5C4XX_CONFIG_IO_0_MODE	0x0100
+#define  RL5C4XX_CONFIG_PREFETCH	0x0001
+
+/* Misc Control Register */
+#define RL5C4XX_MISC			0x0082	/* 16 bit */
+#define  RL5C4XX_MISC_HW_SUSPEND_ENA	0x0002
+#define  RL5C4XX_MISC_VCCEN_POL		0x0100
+#define  RL5C4XX_MISC_VPPEN_POL		0x0200
+#define  RL5C46X_MISC_SUSPEND		0x0001
+#define  RL5C46X_MISC_PWR_SAVE_2	0x0004
+#define  RL5C46X_MISC_IFACE_BUSY	0x0008
+#define  RL5C46X_MISC_B_LOCK		0x0010
+#define  RL5C46X_MISC_A_LOCK		0x0020
+#define  RL5C46X_MISC_PCI_LOCK		0x0040
+#define  RL5C47X_MISC_IFACE_BUSY	0x0004
+#define  RL5C47X_MISC_PCI_INT_MASK	0x0018
+#define  RL5C47X_MISC_PCI_INT_DIS	0x0020
+#define  RL5C47X_MISC_SUBSYS_WR		0x0040
+#define  RL5C47X_MISC_SRIRQ_ENA		0x0080
+#define  RL5C47X_MISC_5V_DISABLE	0x0400
+#define  RL5C47X_MISC_LED_POL		0x0800
+
+/* 16-bit Interface Control Register */
+#define RL5C4XX_16BIT_CTL		0x0084	/* 16 bit */
+#define  RL5C4XX_16CTL_IO_TIMING	0x0100
+#define  RL5C4XX_16CTL_MEM_TIMING	0x0200
+#define  RL5C46X_16CTL_LEVEL_1		0x0010
+#define  RL5C46X_16CTL_LEVEL_2		0x0020
+
+/* 16-bit IO and memory timing registers */
+#define RL5C4XX_16BIT_IO_0		0x0088	/* 16 bit */
+#define RL5C4XX_16BIT_MEM_0		0x008a	/* 16 bit */
+#define  RL5C4XX_SETUP_MASK		0x0007
+#define  RL5C4XX_SETUP_SHIFT		0
+#define  RL5C4XX_CMD_MASK		0x01f0
+#define  RL5C4XX_CMD_SHIFT		4
+#define  RL5C4XX_HOLD_MASK		0x1c00
+#define  RL5C4XX_HOLD_SHIFT		10
+#define  RL5C4XX_MISC_CONTROL           0x2F /* 8 bit */
+#define  RL5C4XX_ZV_ENABLE              0x08
+
+/* Misc Control 3 Register */
+#define RL5C4XX_MISC3			0x00A2 /* 16 bit */
+#define  RL5C47X_MISC3_CB_CLKRUN_DIS	BIT(1)
+
+#ifdef __YENTA_H
+
+#define rl_misc(socket)		((socket)->private[0])
+#define rl_ctl(socket)		((socket)->private[1])
+#define rl_io(socket)		((socket)->private[2])
+#define rl_mem(socket)		((socket)->private[3])
+#define rl_config(socket)	((socket)->private[4])
+
+static void ricoh_zoom_video(struct pcmcia_socket *sock, int onoff)
+{
+        u8 reg;
+	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+
+        reg = config_readb(socket, RL5C4XX_MISC_CONTROL);
+        if (onoff)
+                /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
+                reg |=  RL5C4XX_ZV_ENABLE;
+        else
+                reg &= ~RL5C4XX_ZV_ENABLE;
+	
+        config_writeb(socket, RL5C4XX_MISC_CONTROL, reg);
+}
+
+static void ricoh_set_zv(struct yenta_socket *socket)
+{
+        if(socket->dev->vendor == PCI_VENDOR_ID_RICOH)
+        {
+                switch(socket->dev->device)
+                {
+                        /* There may be more .. */
+		case  PCI_DEVICE_ID_RICOH_RL5C478:
+			socket->socket.zoom_video = ricoh_zoom_video;
+			break;  
+                }
+        }
+}
+
+static void ricoh_set_clkrun(struct yenta_socket *socket, bool quiet)
+{
+	u16 misc3;
+
+	/*
+	 * RL5C475II likely has this setting, too, however no datasheet
+	 * is publicly available for this chip
+	 */
+	if (socket->dev->device != PCI_DEVICE_ID_RICOH_RL5C476 &&
+	    socket->dev->device != PCI_DEVICE_ID_RICOH_RL5C478)
+		return;
+
+	if (socket->dev->revision < 0x80)
+		return;
+
+	misc3 = config_readw(socket, RL5C4XX_MISC3);
+	if (misc3 & RL5C47X_MISC3_CB_CLKRUN_DIS) {
+		if (!quiet)
+			dev_dbg(&socket->dev->dev,
+				"CLKRUN feature already disabled\n");
+	} else if (disable_clkrun) {
+		if (!quiet)
+			dev_info(&socket->dev->dev,
+				 "Disabling CLKRUN feature\n");
+		misc3 |= RL5C47X_MISC3_CB_CLKRUN_DIS;
+		config_writew(socket, RL5C4XX_MISC3, misc3);
+	}
+}
+
+static void ricoh_save_state(struct yenta_socket *socket)
+{
+	rl_misc(socket) = config_readw(socket, RL5C4XX_MISC);
+	rl_ctl(socket) = config_readw(socket, RL5C4XX_16BIT_CTL);
+	rl_io(socket) = config_readw(socket, RL5C4XX_16BIT_IO_0);
+	rl_mem(socket) = config_readw(socket, RL5C4XX_16BIT_MEM_0);
+	rl_config(socket) = config_readw(socket, RL5C4XX_CONFIG);
+}
+
+static void ricoh_restore_state(struct yenta_socket *socket)
+{
+	config_writew(socket, RL5C4XX_MISC, rl_misc(socket));
+	config_writew(socket, RL5C4XX_16BIT_CTL, rl_ctl(socket));
+	config_writew(socket, RL5C4XX_16BIT_IO_0, rl_io(socket));
+	config_writew(socket, RL5C4XX_16BIT_MEM_0, rl_mem(socket));
+	config_writew(socket, RL5C4XX_CONFIG, rl_config(socket));
+	ricoh_set_clkrun(socket, true);
+}
+
+
+/*
+ * Magic Ricoh initialization code..
+ */
+static int ricoh_override(struct yenta_socket *socket)
+{
+	u16 config, ctl;
+
+	config = config_readw(socket, RL5C4XX_CONFIG);
+
+	/* Set the default timings, don't trust the original values */
+	ctl = RL5C4XX_16CTL_IO_TIMING | RL5C4XX_16CTL_MEM_TIMING;
+
+	if(socket->dev->device < PCI_DEVICE_ID_RICOH_RL5C475) {
+		ctl |= RL5C46X_16CTL_LEVEL_1 | RL5C46X_16CTL_LEVEL_2;
+	} else {
+		config |= RL5C4XX_CONFIG_PREFETCH;
+	}
+
+	config_writew(socket, RL5C4XX_16BIT_CTL, ctl);
+	config_writew(socket, RL5C4XX_CONFIG, config);
+
+	ricoh_set_zv(socket);
+	ricoh_set_clkrun(socket, false);
+
+	return 0;
+}
+
+#endif /* CONFIG_CARDBUS */
+
+#endif /* _LINUX_RICOH_H */

linux-7.2.3/drivers/pcmcia/rsrc_mgr.c

@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * rsrc_mgr.c -- Resource management routines and/or wrappers
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * (C) 1999		David A. Hinds
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+#include "cs_internal.h"
+
+int static_init(struct pcmcia_socket *s)
+{
+	/* the good thing about SS_CAP_STATIC_MAP sockets is
+	 * that they don't need a resource database */
+
+	s->resource_setup_done = 1;
+
+	return 0;
+}
+
+struct resource *pcmcia_make_resource(resource_size_t start,
+					resource_size_t end,
+					unsigned long flags, const char *name)
+{
+	struct resource *res = kzalloc_obj(*res);
+
+	if (res) {
+		res->name = name;
+		res->start = start;
+		res->end = start + end - 1;
+		res->flags = flags;
+	}
+	return res;
+}
+
+static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
+			unsigned int *base, unsigned int num,
+			unsigned int align, struct resource **parent)
+{
+	if (!s->io_offset)
+		return -EINVAL;
+	*base = s->io_offset | (*base & 0x0fff);
+	*parent = NULL;
+
+	return 0;
+}
+
+
+struct pccard_resource_ops pccard_static_ops = {
+	.validate_mem = NULL,
+	.find_io = static_find_io,
+	.find_mem = NULL,
+	.init = static_init,
+	.exit = NULL,
+};
+EXPORT_SYMBOL(pccard_static_ops);
+
+
+MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
+MODULE_DESCRIPTION("PCMCIA resource management routines");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("rsrc_nonstatic");

linux-7.2.3/drivers/pcmcia/sa1100_generic.c

@@ -0,0 +1,211 @@
+/*======================================================================
+
+    Device driver for the PCMCIA control functionality of StrongARM
+    SA-1100 microprocessors.
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is John G. Dorsey
+    <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
+    Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+    
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/hardware/scoop.h>
+
+#include "sa1100_generic.h"
+
+static const char *sa11x0_cf_gpio_names[] = {
+	[SOC_STAT_CD] = "detect",
+	[SOC_STAT_BVD1] = "bvd1",
+	[SOC_STAT_BVD2] = "bvd2",
+	[SOC_STAT_RDY] = "ready",
+};
+
+static int sa11x0_cf_hw_init(struct soc_pcmcia_socket *skt)
+{
+	struct device *dev = skt->socket.dev.parent;
+	int i;
+
+	skt->gpio_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(skt->gpio_reset))
+		return PTR_ERR(skt->gpio_reset);
+
+	skt->gpio_bus_enable = devm_gpiod_get_optional(dev, "bus-enable",
+						       GPIOD_OUT_HIGH);
+	if (IS_ERR(skt->gpio_bus_enable))
+		return PTR_ERR(skt->gpio_bus_enable);
+
+	skt->vcc.reg = devm_regulator_get_optional(dev, "vcc");
+	if (IS_ERR(skt->vcc.reg))
+		return PTR_ERR(skt->vcc.reg);
+
+	if (!skt->vcc.reg)
+		dev_warn(dev,
+			 "no Vcc regulator provided, ignoring Vcc controls\n");
+
+	for (i = 0; i < ARRAY_SIZE(sa11x0_cf_gpio_names); i++) {
+		skt->stat[i].name = sa11x0_cf_gpio_names[i];
+		skt->stat[i].desc = devm_gpiod_get_optional(dev,
+					sa11x0_cf_gpio_names[i], GPIOD_IN);
+		if (IS_ERR(skt->stat[i].desc))
+			return PTR_ERR(skt->stat[i].desc);
+	}
+	return 0;
+}
+
+static int sa11x0_cf_configure_socket(struct soc_pcmcia_socket *skt,
+	const socket_state_t *state)
+{
+	return soc_pcmcia_regulator_set(skt, &skt->vcc, state->Vcc);
+}
+
+static struct pcmcia_low_level sa11x0_cf_ops = {
+	.owner = THIS_MODULE,
+	.hw_init = sa11x0_cf_hw_init,
+	.socket_state = soc_common_cf_socket_state,
+	.configure_socket = sa11x0_cf_configure_socket,
+};
+
+int __init pcmcia_collie_init(struct device *dev);
+
+static int (*sa11x0_pcmcia_legacy_hw_init[])(struct device *dev) = {
+#ifdef CONFIG_SA1100_H3600
+	pcmcia_h3600_init,
+#endif
+#ifdef CONFIG_SA1100_COLLIE
+       pcmcia_collie_init,
+#endif
+};
+
+static int sa11x0_drv_pcmcia_legacy_probe(struct platform_device *dev)
+{
+	int i, ret = -ENODEV;
+
+	/*
+	 * Initialise any "on-board" PCMCIA sockets.
+	 */
+	for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_legacy_hw_init); i++) {
+		ret = sa11x0_pcmcia_legacy_hw_init[i](&dev->dev);
+		if (ret == 0)
+			break;
+	}
+
+	return ret;
+}
+
+static void sa11x0_drv_pcmcia_legacy_remove(struct platform_device *dev)
+{
+	struct skt_dev_info *sinfo = platform_get_drvdata(dev);
+	int i;
+
+	platform_set_drvdata(dev, NULL);
+
+	for (i = 0; i < sinfo->nskt; i++)
+		soc_pcmcia_remove_one(&sinfo->skt[i]);
+}
+
+static int sa11x0_drv_pcmcia_probe(struct platform_device *pdev)
+{
+	struct soc_pcmcia_socket *skt;
+	struct device *dev = &pdev->dev;
+
+	if (pdev->id == -1)
+		return sa11x0_drv_pcmcia_legacy_probe(pdev);
+
+	skt = devm_kzalloc(dev, sizeof(*skt), GFP_KERNEL);
+	if (!skt)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, skt);
+
+	skt->nr = pdev->id;
+	skt->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(skt->clk))
+		return PTR_ERR(skt->clk);
+
+	sa11xx_drv_pcmcia_ops(&sa11x0_cf_ops);
+	soc_pcmcia_init_one(skt, &sa11x0_cf_ops, dev);
+
+	return sa11xx_drv_pcmcia_add_one(skt);
+}
+
+static void sa11x0_drv_pcmcia_remove(struct platform_device *dev)
+{
+	struct soc_pcmcia_socket *skt;
+
+	if (dev->id == -1) {
+		sa11x0_drv_pcmcia_legacy_remove(dev);
+		return;
+	}
+
+	skt = platform_get_drvdata(dev);
+
+	soc_pcmcia_remove_one(skt);
+}
+
+static struct platform_driver sa11x0_pcmcia_driver = {
+	.driver = {
+		.name		= "sa11x0-pcmcia",
+	},
+	.probe		= sa11x0_drv_pcmcia_probe,
+	.remove		= sa11x0_drv_pcmcia_remove,
+};
+
+/* sa11x0_pcmcia_init()
+ * ^^^^^^^^^^^^^^^^^^^^
+ *
+ * This routine performs low-level PCMCIA initialization and then
+ * registers this socket driver with Card Services.
+ *
+ * Returns: 0 on success, -ve error code on failure
+ */
+static int __init sa11x0_pcmcia_init(void)
+{
+	return platform_driver_register(&sa11x0_pcmcia_driver);
+}
+
+/* sa11x0_pcmcia_exit()
+ * ^^^^^^^^^^^^^^^^^^^^
+ * Invokes the low-level kernel service to free IRQs associated with this
+ * socket controller and reset GPIO edge detection.
+ */
+static void __exit sa11x0_pcmcia_exit(void)
+{
+	platform_driver_unregister(&sa11x0_pcmcia_driver);
+}
+
+MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11x0 Socket Controller");
+MODULE_LICENSE("Dual MPL/GPL");
+
+fs_initcall(sa11x0_pcmcia_init);
+module_exit(sa11x0_pcmcia_exit);

linux-7.2.3/drivers/pcmcia/sa1100_generic.h

@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include "soc_common.h"
+#include "sa11xx_base.h"
+
+/*
+ * Declaration for all machine specific init/exit functions.
+ */
+extern int pcmcia_adsbitsy_init(struct device *);
+extern int pcmcia_badge4_init(struct device *);
+extern int pcmcia_flexanet_init(struct device *);
+extern int pcmcia_freebird_init(struct device *);
+extern int pcmcia_gcplus_init(struct device *);
+extern int pcmcia_graphicsmaster_init(struct device *);
+extern int pcmcia_h3600_init(struct device *);
+extern int pcmcia_pangolin_init(struct device *);
+extern int pcmcia_pfs168_init(struct device *);
+extern int pcmcia_simpad_init(struct device *);
+extern int pcmcia_stork_init(struct device *);
+extern int pcmcia_system3_init(struct device *);
+extern int pcmcia_trizeps_init(struct device *);
+extern int pcmcia_xp860_init(struct device *);
+extern int pcmcia_yopy_init(struct device *);

linux-7.2.3/drivers/pcmcia/sa1100_h3600.c

@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * drivers/pcmcia/sa1100_h3600.c
+ *
+ * PCMCIA implementation routines for H3600
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <mach/h3xxx.h>
+
+#include "sa1100_generic.h"
+
+static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	int err;
+
+	skt->stat[SOC_STAT_CD].name = skt->nr ? "pcmcia1-detect" : "pcmcia0-detect";
+	skt->stat[SOC_STAT_RDY].name = skt->nr ? "pcmcia1-ready" : "pcmcia0-ready";
+
+	err = soc_pcmcia_request_gpiods(skt);
+	if (err)
+		return err;
+
+	switch (skt->nr) {
+	case 0:
+		err = gpio_request(H3XXX_EGPIO_OPT_NVRAM_ON, "OPT NVRAM ON");
+		if (err)
+			goto err01;
+		err = gpio_direction_output(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
+		if (err)
+			goto err03;
+		err = gpio_request(H3XXX_EGPIO_OPT_ON, "OPT ON");
+		if (err)
+			goto err03;
+		err = gpio_direction_output(H3XXX_EGPIO_OPT_ON, 0);
+		if (err)
+			goto err04;
+		err = gpio_request(H3XXX_EGPIO_OPT_RESET, "OPT RESET");
+		if (err)
+			goto err04;
+		err = gpio_direction_output(H3XXX_EGPIO_OPT_RESET, 0);
+		if (err)
+			goto err05;
+		err = gpio_request(H3XXX_EGPIO_CARD_RESET, "PCMCIA CARD RESET");
+		if (err)
+			goto err05;
+		err = gpio_direction_output(H3XXX_EGPIO_CARD_RESET, 0);
+		if (err)
+			goto err06;
+		break;
+	case 1:
+		break;
+	}
+	return 0;
+
+err06:	gpio_free(H3XXX_EGPIO_CARD_RESET);
+err05:	gpio_free(H3XXX_EGPIO_OPT_RESET);
+err04:	gpio_free(H3XXX_EGPIO_OPT_ON);
+err03:	gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
+err01:	gpio_free(H3XXX_GPIO_PCMCIA_IRQ0);
+	return err;
+}
+
+static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	switch (skt->nr) {
+	case 0:
+		/* Disable CF bus: */
+		gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
+		gpio_set_value(H3XXX_EGPIO_OPT_ON, 0);
+		gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1);
+
+		gpio_free(H3XXX_EGPIO_CARD_RESET);
+		gpio_free(H3XXX_EGPIO_OPT_RESET);
+		gpio_free(H3XXX_EGPIO_OPT_ON);
+		gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON);
+		break;
+	case 1:
+		break;
+	}
+}
+
+static void
+h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+	state->bvd1 = 0;
+	state->bvd2 = 0;
+	state->vs_3v = 0;
+	state->vs_Xv = 0;
+}
+
+static int
+h3600_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+	if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) {
+		printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n",
+		       state->Vcc / 10, state->Vcc % 10);
+		return -1;
+	}
+
+	gpio_set_value(H3XXX_EGPIO_CARD_RESET, !!(state->flags & SS_RESET));
+
+	/* Silently ignore Vpp, output enable, speaker enable. */
+
+	return 0;
+}
+
+static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt)
+{
+	/* Enable CF bus: */
+	gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 1);
+	gpio_set_value(H3XXX_EGPIO_OPT_ON, 1);
+	gpio_set_value(H3XXX_EGPIO_OPT_RESET, 0);
+
+	msleep(10);
+}
+
+static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+	/*
+	 * FIXME:  This doesn't fit well.  We don't have the mechanism in
+	 * the generic PCMCIA layer to deal with the idea of two sockets
+	 * on one bus.  We rely on the cs.c behaviour shutting down
+	 * socket 0 then socket 1.
+	 */
+	if (skt->nr == 1) {
+		gpio_set_value(H3XXX_EGPIO_OPT_ON, 0);
+		gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0);
+		/* hmm, does this suck power? */
+		gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1);
+	}
+}
+
+struct pcmcia_low_level h3600_pcmcia_ops = { 
+	.owner			= THIS_MODULE,
+	.hw_init		= h3600_pcmcia_hw_init,
+	.hw_shutdown		= h3600_pcmcia_hw_shutdown,
+	.socket_state		= h3600_pcmcia_socket_state,
+	.configure_socket	= h3600_pcmcia_configure_socket,
+
+	.socket_init		= h3600_pcmcia_socket_init,
+	.socket_suspend		= h3600_pcmcia_socket_suspend,
+};
+
+int pcmcia_h3600_init(struct device *dev)
+{
+	int ret = -ENODEV;
+
+	if (machine_is_h3600())
+		ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2);
+
+	return ret;
+}

linux-7.2.3/drivers/pcmcia/sa1111_generic.c

@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/drivers/pcmcia/sa1111_generic.c
+ *
+ * We implement the generic parts of a SA1111 PCMCIA driver.  This
+ * basically means we handle everything except controlling the
+ * power.  Power is machine specific...
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <pcmcia/ss.h>
+
+#include <asm/hardware/sa1111.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include "sa1111_generic.h"
+
+/*
+ * These are offsets from the above base.
+ */
+#define PCCR	0x0000
+#define PCSSR	0x0004
+#define PCSR	0x0008
+
+#define PCSR_S0_READY	(1<<0)
+#define PCSR_S1_READY	(1<<1)
+#define PCSR_S0_DETECT	(1<<2)
+#define PCSR_S1_DETECT	(1<<3)
+#define PCSR_S0_VS1	(1<<4)
+#define PCSR_S0_VS2	(1<<5)
+#define PCSR_S1_VS1	(1<<6)
+#define PCSR_S1_VS2	(1<<7)
+#define PCSR_S0_WP	(1<<8)
+#define PCSR_S1_WP	(1<<9)
+#define PCSR_S0_BVD1	(1<<10)
+#define PCSR_S0_BVD2	(1<<11)
+#define PCSR_S1_BVD1	(1<<12)
+#define PCSR_S1_BVD2	(1<<13)
+
+#define PCCR_S0_RST	(1<<0)
+#define PCCR_S1_RST	(1<<1)
+#define PCCR_S0_FLT	(1<<2)
+#define PCCR_S1_FLT	(1<<3)
+#define PCCR_S0_PWAITEN	(1<<4)
+#define PCCR_S1_PWAITEN	(1<<5)
+#define PCCR_S0_PSE	(1<<6)
+#define PCCR_S1_PSE	(1<<7)
+
+#define PCSSR_S0_SLEEP	(1<<0)
+#define PCSSR_S1_SLEEP	(1<<1)
+
+#define IDX_IRQ_S0_READY_NINT	(0)
+#define IDX_IRQ_S0_CD_VALID	(1)
+#define IDX_IRQ_S0_BVD1_STSCHG	(2)
+#define IDX_IRQ_S1_READY_NINT	(3)
+#define IDX_IRQ_S1_CD_VALID	(4)
+#define IDX_IRQ_S1_BVD1_STSCHG	(5)
+#define NUM_IRQS		(6)
+
+void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state)
+{
+	struct sa1111_pcmcia_socket *s = to_skt(skt);
+	u32 status = readl_relaxed(s->dev->mapbase + PCSR);
+
+	switch (skt->nr) {
+	case 0:
+		state->detect = status & PCSR_S0_DETECT ? 0 : 1;
+		state->ready  = status & PCSR_S0_READY  ? 1 : 0;
+		state->bvd1   = status & PCSR_S0_BVD1   ? 1 : 0;
+		state->bvd2   = status & PCSR_S0_BVD2   ? 1 : 0;
+		state->wrprot = status & PCSR_S0_WP     ? 1 : 0;
+		state->vs_3v  = status & PCSR_S0_VS1    ? 0 : 1;
+		state->vs_Xv  = status & PCSR_S0_VS2    ? 0 : 1;
+		break;
+
+	case 1:
+		state->detect = status & PCSR_S1_DETECT ? 0 : 1;
+		state->ready  = status & PCSR_S1_READY  ? 1 : 0;
+		state->bvd1   = status & PCSR_S1_BVD1   ? 1 : 0;
+		state->bvd2   = status & PCSR_S1_BVD2   ? 1 : 0;
+		state->wrprot = status & PCSR_S1_WP     ? 1 : 0;
+		state->vs_3v  = status & PCSR_S1_VS1    ? 0 : 1;
+		state->vs_Xv  = status & PCSR_S1_VS2    ? 0 : 1;
+		break;
+	}
+}
+
+int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+	struct sa1111_pcmcia_socket *s = to_skt(skt);
+	u32 pccr_skt_mask, pccr_set_mask, val;
+	unsigned long flags;
+
+	switch (skt->nr) {
+	case 0:
+		pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE;
+		break;
+
+	case 1:
+		pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE;
+		break;
+
+	default:
+		return -1;
+	}
+
+	pccr_set_mask = 0;
+
+	if (state->Vcc != 0)
+		pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN;
+	if (state->Vcc == 50)
+		pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE;
+	if (state->flags & SS_RESET)
+		pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST;
+	if (state->flags & SS_OUTPUT_ENA)
+		pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT;
+
+	local_irq_save(flags);
+	val = readl_relaxed(s->dev->mapbase + PCCR);
+	val &= ~pccr_skt_mask;
+	val |= pccr_set_mask & pccr_skt_mask;
+	writel_relaxed(val, s->dev->mapbase + PCCR);
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
+	int (*add)(struct soc_pcmcia_socket *))
+{
+	struct sa1111_pcmcia_socket *s;
+	struct clk *clk;
+	int i, ret = 0, irqs[NUM_IRQS];
+
+	clk = devm_clk_get(&dev->dev, NULL);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	for (i = 0; i < NUM_IRQS; i++) {
+		irqs[i] = sa1111_get_irq(dev, i);
+		if (irqs[i] <= 0)
+			return irqs[i] ? : -ENXIO;
+	}
+
+	ops->socket_state = sa1111_pcmcia_socket_state;
+
+	for (i = 0; i < ops->nr; i++) {
+		s = kzalloc_obj(*s);
+		if (!s)
+			return -ENOMEM;
+
+		s->soc.nr = ops->first + i;
+		s->soc.clk = clk;
+
+		soc_pcmcia_init_one(&s->soc, ops, &dev->dev);
+		s->dev = dev;
+		if (s->soc.nr) {
+			s->soc.socket.pci_irq = irqs[IDX_IRQ_S1_READY_NINT];
+			s->soc.stat[SOC_STAT_CD].irq = irqs[IDX_IRQ_S1_CD_VALID];
+			s->soc.stat[SOC_STAT_CD].name = "SA1111 CF card detect";
+			s->soc.stat[SOC_STAT_BVD1].irq = irqs[IDX_IRQ_S1_BVD1_STSCHG];
+			s->soc.stat[SOC_STAT_BVD1].name = "SA1111 CF BVD1";
+		} else {
+			s->soc.socket.pci_irq = irqs[IDX_IRQ_S0_READY_NINT];
+			s->soc.stat[SOC_STAT_CD].irq = irqs[IDX_IRQ_S0_CD_VALID];
+			s->soc.stat[SOC_STAT_CD].name = "SA1111 PCMCIA card detect";
+			s->soc.stat[SOC_STAT_BVD1].irq = irqs[IDX_IRQ_S0_BVD1_STSCHG];
+			s->soc.stat[SOC_STAT_BVD1].name = "SA1111 PCMCIA BVD1";
+		}
+
+		ret = add(&s->soc);
+		if (ret == 0) {
+			s->next = dev_get_drvdata(&dev->dev);
+			dev_set_drvdata(&dev->dev, s);
+		} else
+			kfree(s);
+	}
+
+	return ret;
+}
+
+static int pcmcia_probe(struct sa1111_dev *dev)
+{
+	void __iomem *base;
+	int ret;
+
+	ret = sa1111_enable_device(dev);
+	if (ret)
+		return ret;
+
+	dev_set_drvdata(&dev->dev, NULL);
+
+	if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) {
+		sa1111_disable_device(dev);
+		return -EBUSY;
+	}
+
+	base = dev->mapbase;
+
+	/*
+	 * Initialise the suspend state.
+	 */
+	writel_relaxed(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + PCSSR);
+	writel_relaxed(PCCR_S0_FLT | PCCR_S1_FLT, base + PCCR);
+
+	ret = -ENODEV;
+#ifdef CONFIG_SA1100_JORNADA720
+	if (machine_is_jornada720())
+		ret = pcmcia_jornada720_init(dev);
+#endif
+#ifdef CONFIG_ASSABET_NEPONSET
+	if (machine_is_assabet())
+		ret = pcmcia_neponset_init(dev);
+#endif
+
+	if (ret) {
+		release_mem_region(dev->res.start, 512);
+		sa1111_disable_device(dev);
+	}
+
+	return ret;
+}
+
+static void pcmcia_remove(struct sa1111_dev *dev)
+{
+	struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev);
+
+	dev_set_drvdata(&dev->dev, NULL);
+
+	for (; s; s = next) {
+		next = s->next;
+		soc_pcmcia_remove_one(&s->soc);
+		kfree(s);
+	}
+
+	release_mem_region(dev->res.start, 512);
+	sa1111_disable_device(dev);
+}
+
+static struct sa1111_driver pcmcia_driver = {
+	.drv = {
+		.name	= "sa1111-pcmcia",
+	},
+	.devid		= SA1111_DEVID_PCMCIA,
+	.probe		= pcmcia_probe,
+	.remove		= pcmcia_remove,
+};
+
+static int __init sa1111_drv_pcmcia_init(void)
+{
+	return sa1111_driver_register(&pcmcia_driver);
+}
+
+static void __exit sa1111_drv_pcmcia_exit(void)
+{
+	sa1111_driver_unregister(&pcmcia_driver);
+}
+
+fs_initcall(sa1111_drv_pcmcia_init);
+module_exit(sa1111_drv_pcmcia_exit);
+
+MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/pcmcia/sa1111_generic.h

@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include "soc_common.h"
+#include "sa11xx_base.h"
+
+struct sa1111_pcmcia_socket {
+	struct soc_pcmcia_socket soc;
+	struct sa1111_dev *dev;
+	struct sa1111_pcmcia_socket *next;
+};
+
+static inline struct sa1111_pcmcia_socket *to_skt(struct soc_pcmcia_socket *s)
+{
+	return container_of(s, struct sa1111_pcmcia_socket, soc);
+}
+
+int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops,
+	int (*add)(struct soc_pcmcia_socket *));
+
+extern void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *, struct pcmcia_state *);
+extern int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *, const socket_state_t *);
+
+extern int pcmcia_badge4_init(struct sa1111_dev *);
+extern int pcmcia_jornada720_init(struct sa1111_dev *);
+extern int pcmcia_lubbock_init(struct sa1111_dev *);
+extern int pcmcia_neponset_init(struct sa1111_dev *);
+

linux-7.2.3/drivers/pcmcia/sa1111_jornada720.c

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * drivers/pcmcia/sa1100_jornada720.c
+ *
+ * Jornada720 PCMCIA specific routines
+ *
+ */
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+
+#include "sa1111_generic.h"
+
+/*
+ * Socket 0 power: GPIO A0
+ * Socket 0 3V: GPIO A2
+ * Socket 1 power: GPIO A1 & GPIO A3
+ * Socket 1 3V: GPIO A3
+ * Does Socket 1 3V actually do anything?
+ */
+enum {
+	J720_GPIO_PWR,
+	J720_GPIO_3V,
+	J720_GPIO_MAX,
+};
+struct jornada720_data {
+	struct gpio_desc *gpio[J720_GPIO_MAX];
+};
+
+static int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	struct device *dev = skt->socket.dev.parent;
+	struct jornada720_data *j;
+
+	j = devm_kzalloc(dev, sizeof(*j), GFP_KERNEL);
+	if (!j)
+		return -ENOMEM;
+
+	j->gpio[J720_GPIO_PWR] = devm_gpiod_get(dev, skt->nr ? "s1-power" :
+						"s0-power", GPIOD_OUT_LOW);
+	if (IS_ERR(j->gpio[J720_GPIO_PWR]))
+		return PTR_ERR(j->gpio[J720_GPIO_PWR]);
+
+	j->gpio[J720_GPIO_3V] = devm_gpiod_get(dev, skt->nr ? "s1-3v" :
+					       "s0-3v", GPIOD_OUT_LOW);
+	if (IS_ERR(j->gpio[J720_GPIO_3V]))
+		return PTR_ERR(j->gpio[J720_GPIO_3V]);
+
+	skt->driver_data = j;
+
+	return 0;
+}
+
+static int
+jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+	struct jornada720_data *j = skt->driver_data;
+	DECLARE_BITMAP(values, J720_GPIO_MAX) = { 0, };
+	int ret;
+
+	printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
+		skt->nr, state->Vcc, state->Vpp);
+
+	switch (skt->nr) {
+	case 0:
+		switch (state->Vcc) {
+		default:
+		case  0:
+			__assign_bit(J720_GPIO_PWR, values, 0);
+			__assign_bit(J720_GPIO_3V, values, 0);
+			break;
+		case 33:
+			__assign_bit(J720_GPIO_PWR, values, 1);
+			__assign_bit(J720_GPIO_3V, values, 1);
+			break;
+		case 50:
+			__assign_bit(J720_GPIO_PWR, values, 1);
+			__assign_bit(J720_GPIO_3V, values, 0);
+			break;
+		}
+		break;
+
+	case 1:
+		switch (state->Vcc) {
+		default:
+		case 0:
+			__assign_bit(J720_GPIO_PWR, values, 0);
+			__assign_bit(J720_GPIO_3V, values, 0);
+			break;
+		case 33:
+		case 50:
+			__assign_bit(J720_GPIO_PWR, values, 1);
+			__assign_bit(J720_GPIO_3V, values, 1);
+			break;
+		}
+		break;
+
+	default:
+		return -1;
+	}
+
+	if (state->Vpp != state->Vcc && state->Vpp != 0) {
+		printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
+			__func__, state->Vpp);
+		return -EPERM;
+	}
+
+	ret = sa1111_pcmcia_configure_socket(skt, state);
+	if (ret == 0)
+		ret = gpiod_set_array_value_cansleep(J720_GPIO_MAX, j->gpio,
+						     NULL, values);
+
+	return ret;
+}
+
+static struct pcmcia_low_level jornada720_pcmcia_ops = {
+	.owner			= THIS_MODULE,
+	.hw_init		= jornada720_pcmcia_hw_init,
+	.configure_socket	= jornada720_pcmcia_configure_socket,
+	.first			= 0,
+	.nr			= 2,
+};
+
+int pcmcia_jornada720_init(struct sa1111_dev *sadev)
+{
+	/* Fixme: why messing around with SA11x0's GPIO1? */
+	GRER |= 0x00000002;
+
+	sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
+	return sa1111_pcmcia_add(sadev, &jornada720_pcmcia_ops,
+				 sa11xx_drv_pcmcia_add_one);
+}

linux-7.2.3/drivers/pcmcia/sa1111_neponset.c

@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/drivers/pcmcia/sa1100_neponset.c
+ *
+ * Neponset PCMCIA specific routines
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+
+#include "sa1111_generic.h"
+#include "max1600.h"
+
+/*
+ * Neponset uses the Maxim MAX1600, with the following connections:
+ *
+ *   MAX1600      Neponset
+ *
+ *    A0VCC        SA-1111 GPIO A<1>
+ *    A1VCC        SA-1111 GPIO A<0>
+ *    A0VPP        CPLD NCR A0VPP
+ *    A1VPP        CPLD NCR A1VPP
+ *    B0VCC        SA-1111 GPIO A<2>
+ *    B1VCC        SA-1111 GPIO A<3>
+ *    B0VPP        ground (slot B is CF)
+ *    B1VPP        ground (slot B is CF)
+ *
+ *     VX          VCC (5V)
+ *     VY          VCC3_3 (3.3V)
+ *     12INA       12V
+ *     12INB       ground (slot B is CF)
+ *
+ * The MAX1600 CODE pin is tied to ground, placing the device in 
+ * "Standard Intel code" mode. Refer to the Maxim data sheet for
+ * the corresponding truth table.
+ */
+static int neponset_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	struct max1600 *m;
+	int ret;
+
+	ret = max1600_init(skt->socket.dev.parent, &m,
+			   skt->nr ? MAX1600_CHAN_B : MAX1600_CHAN_A,
+			   MAX1600_CODE_LOW);
+	if (ret == 0)
+		skt->driver_data = m;
+
+	return ret;
+}
+
+static int
+neponset_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
+{
+	struct max1600 *m = skt->driver_data;
+	int ret;
+
+	ret = sa1111_pcmcia_configure_socket(skt, state);
+	if (ret == 0)
+		ret = max1600_configure(m, state->Vcc, state->Vpp);
+
+	return ret;
+}
+
+static struct pcmcia_low_level neponset_pcmcia_ops = {
+	.owner			= THIS_MODULE,
+	.hw_init		= neponset_pcmcia_hw_init,
+	.configure_socket	= neponset_pcmcia_configure_socket,
+	.first			= 0,
+	.nr			= 2,
+};
+
+int pcmcia_neponset_init(struct sa1111_dev *sadev)
+{
+	sa11xx_drv_pcmcia_ops(&neponset_pcmcia_ops);
+	return sa1111_pcmcia_add(sadev, &neponset_pcmcia_ops,
+				 sa11xx_drv_pcmcia_add_one);
+}

linux-7.2.3/drivers/pcmcia/sa11xx_base.c

@@ -0,0 +1,263 @@
+/*======================================================================
+
+    Device driver for the PCMCIA control functionality of StrongARM
+    SA-1100 microprocessors.
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is John G. Dorsey
+    <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
+    Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include "soc_common.h"
+#include "sa11xx_base.h"
+
+
+/*
+ * sa1100_pcmcia_default_mecr_timing
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * Calculate MECR clock wait states for given CPU clock
+ * speed and command wait state. This function can be over-
+ * written by a board specific version.
+ *
+ * The default is to simply calculate the BS values as specified in
+ * the INTEL SA1100 development manual
+ * "Expansion Memory (PCMCIA) Configuration Register (MECR)"
+ * that's section 10.2.5 in _my_ version of the manual ;)
+ */
+static unsigned int
+sa1100_pcmcia_default_mecr_timing(struct soc_pcmcia_socket *skt,
+				  unsigned int cpu_speed,
+				  unsigned int cmd_time)
+{
+	return sa1100_pcmcia_mecr_bs(cmd_time, cpu_speed);
+}
+
+/* sa1100_pcmcia_set_mecr()
+ * ^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * set MECR value for socket <sock> based on this sockets
+ * io, mem and attribute space access speed.
+ * Call board specific BS value calculation to allow boards
+ * to tweak the BS values.
+ */
+static int
+sa1100_pcmcia_set_mecr(struct soc_pcmcia_socket *skt, unsigned int cpu_clock)
+{
+	struct soc_pcmcia_timing timing;
+	u32 mecr, old_mecr;
+	unsigned long flags;
+	unsigned int bs_io, bs_mem, bs_attr;
+
+	soc_common_pcmcia_get_timing(skt, &timing);
+
+	bs_io = skt->ops->get_timing(skt, cpu_clock, timing.io);
+	bs_mem = skt->ops->get_timing(skt, cpu_clock, timing.mem);
+	bs_attr = skt->ops->get_timing(skt, cpu_clock, timing.attr);
+
+	local_irq_save(flags);
+
+	old_mecr = mecr = MECR;
+	MECR_FAST_SET(mecr, skt->nr, 0);
+	MECR_BSIO_SET(mecr, skt->nr, bs_io);
+	MECR_BSA_SET(mecr, skt->nr, bs_attr);
+	MECR_BSM_SET(mecr, skt->nr, bs_mem);
+	if (old_mecr != mecr)
+		MECR = mecr;
+
+	local_irq_restore(flags);
+
+	debug(skt, 2, "FAST %X  BSM %X  BSA %X  BSIO %X\n",
+	      MECR_FAST_GET(mecr, skt->nr),
+	      MECR_BSM_GET(mecr, skt->nr), MECR_BSA_GET(mecr, skt->nr),
+	      MECR_BSIO_GET(mecr, skt->nr));
+
+	return 0;
+}
+
+#ifdef CONFIG_CPU_FREQ
+static int
+sa1100_pcmcia_frequency_change(struct soc_pcmcia_socket *skt,
+			       unsigned long val,
+			       struct cpufreq_freqs *freqs)
+{
+	switch (val) {
+	case CPUFREQ_PRECHANGE:
+		if (freqs->new > freqs->old)
+			sa1100_pcmcia_set_mecr(skt, freqs->new);
+		break;
+
+	case CPUFREQ_POSTCHANGE:
+		if (freqs->new < freqs->old)
+			sa1100_pcmcia_set_mecr(skt, freqs->new);
+		break;
+	}
+
+	return 0;
+}
+
+#endif
+
+static int
+sa1100_pcmcia_set_timing(struct soc_pcmcia_socket *skt)
+{
+	unsigned long clk = clk_get_rate(skt->clk);
+
+	return sa1100_pcmcia_set_mecr(skt, clk / 1000);
+}
+
+static int
+sa1100_pcmcia_show_timing(struct soc_pcmcia_socket *skt, char *buf)
+{
+	struct soc_pcmcia_timing timing;
+	unsigned int clock = clk_get_rate(skt->clk) / 1000;
+	unsigned long mecr = MECR;
+	char *p = buf;
+
+	soc_common_pcmcia_get_timing(skt, &timing);
+
+	p+=sprintf(p, "I/O      : %uns (%uns)\n", timing.io,
+		   sa1100_pcmcia_cmd_time(clock, MECR_BSIO_GET(mecr, skt->nr)));
+
+	p+=sprintf(p, "attribute: %uns (%uns)\n", timing.attr,
+		   sa1100_pcmcia_cmd_time(clock, MECR_BSA_GET(mecr, skt->nr)));
+
+	p+=sprintf(p, "common   : %uns (%uns)\n", timing.mem,
+		   sa1100_pcmcia_cmd_time(clock, MECR_BSM_GET(mecr, skt->nr)));
+
+	return p - buf;
+}
+
+static const char *skt_names[] = {
+	"PCMCIA socket 0",
+	"PCMCIA socket 1",
+};
+
+#define SKT_DEV_INFO_SIZE(n) \
+	(sizeof(struct skt_dev_info) + (n)*sizeof(struct soc_pcmcia_socket))
+
+int sa11xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt)
+{
+	skt->res_skt.start = _PCMCIA(skt->nr);
+	skt->res_skt.end = _PCMCIA(skt->nr) + PCMCIASp - 1;
+	skt->res_skt.name = skt_names[skt->nr];
+	skt->res_skt.flags = IORESOURCE_MEM;
+
+	skt->res_io.start = _PCMCIAIO(skt->nr);
+	skt->res_io.end = _PCMCIAIO(skt->nr) + PCMCIAIOSp - 1;
+	skt->res_io.name = "io";
+	skt->res_io.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+	skt->res_mem.start = _PCMCIAMem(skt->nr);
+	skt->res_mem.end = _PCMCIAMem(skt->nr) + PCMCIAMemSp - 1;
+	skt->res_mem.name = "memory";
+	skt->res_mem.flags = IORESOURCE_MEM;
+
+	skt->res_attr.start = _PCMCIAAttr(skt->nr);
+	skt->res_attr.end = _PCMCIAAttr(skt->nr) + PCMCIAAttrSp - 1;
+	skt->res_attr.name = "attribute";
+	skt->res_attr.flags = IORESOURCE_MEM;
+
+	return soc_pcmcia_add_one(skt);
+}
+EXPORT_SYMBOL(sa11xx_drv_pcmcia_add_one);
+
+void sa11xx_drv_pcmcia_ops(struct pcmcia_low_level *ops)
+{
+	/*
+	 * set default MECR calculation if the board specific
+	 * code did not specify one...
+	 */
+	if (!ops->get_timing)
+		ops->get_timing = sa1100_pcmcia_default_mecr_timing;
+
+	/* Provide our SA11x0 specific timing routines. */
+	ops->set_timing  = sa1100_pcmcia_set_timing;
+	ops->show_timing = sa1100_pcmcia_show_timing;
+#ifdef CONFIG_CPU_FREQ
+	ops->frequency_change = sa1100_pcmcia_frequency_change;
+#endif
+}
+EXPORT_SYMBOL(sa11xx_drv_pcmcia_ops);
+
+int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops,
+			    int first, int nr)
+{
+	struct skt_dev_info *sinfo;
+	struct soc_pcmcia_socket *skt;
+	int i, ret = 0;
+	struct clk *clk;
+
+	clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	sa11xx_drv_pcmcia_ops(ops);
+
+	sinfo = devm_kzalloc(dev, SKT_DEV_INFO_SIZE(nr), GFP_KERNEL);
+	if (!sinfo)
+		return -ENOMEM;
+
+	sinfo->nskt = nr;
+
+	/* Initialize processor specific parameters */
+	for (i = 0; i < nr; i++) {
+		skt = &sinfo->skt[i];
+
+		skt->nr = first + i;
+		skt->clk = clk;
+		soc_pcmcia_init_one(skt, ops, dev);
+
+		ret = sa11xx_drv_pcmcia_add_one(skt);
+		if (ret)
+			break;
+	}
+
+	if (ret) {
+		while (--i >= 0)
+			soc_pcmcia_remove_one(&sinfo->skt[i]);
+	} else {
+		dev_set_drvdata(dev, sinfo);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(sa11xx_drv_pcmcia_probe);
+
+MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11xx core socket driver");
+MODULE_LICENSE("Dual MPL/GPL");

linux-7.2.3/drivers/pcmcia/sa11xx_base.h

@@ -0,0 +1,125 @@
+/*======================================================================
+
+    Device driver for the PCMCIA control functionality of StrongARM
+    SA-1100 microprocessors.
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is John G. Dorsey
+    <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
+    Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+
+======================================================================*/
+
+#if !defined(_PCMCIA_SA1100_H)
+# define _PCMCIA_SA1100_H
+
+/* SA-1100 PCMCIA Memory and I/O timing
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ * The SA-1110 Developer's Manual, section 10.2.5, says the following:
+ *
+ *  "To calculate the recommended BS_xx value for each address space:
+ *   divide the command width time (the greater of twIOWR and twIORD,
+ *   or the greater of twWE and twOE) by processor cycle time; divide
+ *   by 2; divide again by 3 (number of BCLK's per command assertion);
+ *   round up to the next whole number; and subtract 1."
+ */
+
+/* MECR: Expansion Memory Configuration Register
+ * (SA-1100 Developers Manual, p.10-13; SA-1110 Developers Manual, p.10-24)
+ *
+ * MECR layout is:
+ *
+ *   FAST1 BSM1<4:0> BSA1<4:0> BSIO1<4:0> FAST0 BSM0<4:0> BSA0<4:0> BSIO0<4:0>
+ *
+ * (This layout is actually true only for the SA-1110; the FASTn bits are
+ * reserved on the SA-1100.)
+ */
+
+#define MECR_SOCKET_0_SHIFT (0)
+#define MECR_SOCKET_1_SHIFT (16)
+
+#define MECR_BS_MASK        (0x1f)
+#define MECR_FAST_MODE_MASK (0x01)
+
+#define MECR_BSIO_SHIFT (0)
+#define MECR_BSA_SHIFT  (5)
+#define MECR_BSM_SHIFT  (10)
+#define MECR_FAST_SHIFT (15)
+
+#define MECR_SET(mecr, sock, shift, mask, bs) \
+((mecr)=((mecr)&~(((mask)<<(shift))<<\
+                  ((sock)==0?MECR_SOCKET_0_SHIFT:MECR_SOCKET_1_SHIFT)))|\
+        (((bs)<<(shift))<<((sock)==0?MECR_SOCKET_0_SHIFT:MECR_SOCKET_1_SHIFT)))
+
+#define MECR_GET(mecr, sock, shift, mask) \
+((((mecr)>>(((sock)==0)?MECR_SOCKET_0_SHIFT:MECR_SOCKET_1_SHIFT))>>\
+ (shift))&(mask))
+
+#define MECR_BSIO_SET(mecr, sock, bs) \
+MECR_SET((mecr), (sock), MECR_BSIO_SHIFT, MECR_BS_MASK, (bs))
+
+#define MECR_BSIO_GET(mecr, sock) \
+MECR_GET((mecr), (sock), MECR_BSIO_SHIFT, MECR_BS_MASK)
+
+#define MECR_BSA_SET(mecr, sock, bs) \
+MECR_SET((mecr), (sock), MECR_BSA_SHIFT, MECR_BS_MASK, (bs))
+
+#define MECR_BSA_GET(mecr, sock) \
+MECR_GET((mecr), (sock), MECR_BSA_SHIFT, MECR_BS_MASK)
+
+#define MECR_BSM_SET(mecr, sock, bs) \
+MECR_SET((mecr), (sock), MECR_BSM_SHIFT, MECR_BS_MASK, (bs))
+
+#define MECR_BSM_GET(mecr, sock) \
+MECR_GET((mecr), (sock), MECR_BSM_SHIFT, MECR_BS_MASK)
+
+#define MECR_FAST_SET(mecr, sock, fast) \
+MECR_SET((mecr), (sock), MECR_FAST_SHIFT, MECR_FAST_MODE_MASK, (fast))
+
+#define MECR_FAST_GET(mecr, sock) \
+MECR_GET((mecr), (sock), MECR_FAST_SHIFT, MECR_FAST_MODE_MASK)
+
+
+/* This function implements the BS value calculation for setting the MECR
+ * using integer arithmetic:
+ */
+static inline unsigned int sa1100_pcmcia_mecr_bs(unsigned int pcmcia_cycle_ns,
+						 unsigned int cpu_clock_khz){
+  unsigned int t = ((pcmcia_cycle_ns * cpu_clock_khz) / 6) - 1000000;
+  return (t / 1000000) + (((t % 1000000) == 0) ? 0 : 1);
+}
+
+/* This function returns the (approximate) command assertion period, in
+ * nanoseconds, for a given CPU clock frequency and MECR BS value:
+ */
+static inline unsigned int sa1100_pcmcia_cmd_time(unsigned int cpu_clock_khz,
+						  unsigned int pcmcia_mecr_bs){
+  return (((10000000 * 2) / cpu_clock_khz) * (3 * (pcmcia_mecr_bs + 1))) / 10;
+}
+
+
+int sa11xx_drv_pcmcia_add_one(struct soc_pcmcia_socket *skt);
+void sa11xx_drv_pcmcia_ops(struct pcmcia_low_level *ops);
+extern int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr);
+
+#endif  /* !defined(_PCMCIA_SA1100_H) */

linux-7.2.3/drivers/pcmcia/soc_common.c

@@ -0,0 +1,891 @@
+/*======================================================================
+
+    Common support code for the PCMCIA control functionality of
+    integrated SOCs like the SA-11x0 and PXA2xx microprocessors.
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is John G. Dorsey
+    <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
+    Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+
+======================================================================*/
+
+
+#include <linux/cpufreq.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/mutex.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/pci.h>
+
+#include "soc_common.h"
+
+static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev);
+
+#ifdef CONFIG_PCMCIA_DEBUG
+
+static int pc_debug;
+module_param(pc_debug, int, 0644);
+
+void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
+		      int lvl, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	if (pc_debug > lvl) {
+		va_start(args, fmt);
+
+		vaf.fmt = fmt;
+		vaf.va = &args;
+
+		printk(KERN_DEBUG "skt%u: %s: %pV", skt->nr, func, &vaf);
+
+		va_end(args);
+	}
+}
+EXPORT_SYMBOL(soc_pcmcia_debug);
+
+#endif
+
+#define to_soc_pcmcia_socket(x)	\
+	container_of(x, struct soc_pcmcia_socket, socket)
+
+int soc_pcmcia_regulator_set(struct soc_pcmcia_socket *skt,
+	struct soc_pcmcia_regulator *r, int v)
+{
+	bool on;
+	int ret;
+
+	if (!r->reg)
+		return 0;
+
+	on = v != 0;
+	if (r->on == on)
+		return 0;
+
+	if (on) {
+		ret = regulator_set_voltage(r->reg, v * 100000, v * 100000);
+		if (ret) {
+			int vout = regulator_get_voltage(r->reg) / 100000;
+
+			dev_warn(&skt->socket.dev,
+				 "CS requested %s=%u.%uV, applying %u.%uV\n",
+				 r == &skt->vcc ? "Vcc" : "Vpp",
+				 v / 10, v % 10, vout / 10, vout % 10);
+		}
+
+		ret = regulator_enable(r->reg);
+	} else {
+		ret = regulator_disable(r->reg);
+	}
+	if (ret == 0)
+		r->on = on;
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(soc_pcmcia_regulator_set);
+
+static unsigned short
+calc_speed(unsigned short *spds, int num, unsigned short dflt)
+{
+	unsigned short speed = 0;
+	int i;
+
+	for (i = 0; i < num; i++)
+		if (speed < spds[i])
+			speed = spds[i];
+	if (speed == 0)
+		speed = dflt;
+
+	return speed;
+}
+
+void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *skt,
+	struct soc_pcmcia_timing *timing)
+{
+	timing->io =
+		calc_speed(skt->spd_io, MAX_IO_WIN, SOC_PCMCIA_IO_ACCESS);
+	timing->mem =
+		calc_speed(skt->spd_mem, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
+	timing->attr =
+		calc_speed(skt->spd_attr, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
+}
+EXPORT_SYMBOL(soc_common_pcmcia_get_timing);
+
+static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt,
+	unsigned int nr)
+{
+	unsigned int i;
+
+	for (i = 0; i < nr; i++)
+		if (skt->stat[i].irq)
+			free_irq(skt->stat[i].irq, skt);
+
+	if (skt->ops->hw_shutdown)
+		skt->ops->hw_shutdown(skt);
+
+	clk_disable_unprepare(skt->clk);
+}
+
+static void soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
+{
+	__soc_pcmcia_hw_shutdown(skt, ARRAY_SIZE(skt->stat));
+}
+
+int soc_pcmcia_request_gpiods(struct soc_pcmcia_socket *skt)
+{
+	struct device *dev = skt->socket.dev.parent;
+	struct gpio_desc *desc;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
+		if (!skt->stat[i].name)
+			continue;
+
+		desc = devm_gpiod_get(dev, skt->stat[i].name, GPIOD_IN);
+		if (IS_ERR(desc)) {
+			dev_err(dev, "Failed to get GPIO for %s: %ld\n",
+				skt->stat[i].name, PTR_ERR(desc));
+			return PTR_ERR(desc);
+		}
+
+		skt->stat[i].desc = desc;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(soc_pcmcia_request_gpiods);
+
+static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+	int ret = 0, i;
+
+	ret = clk_prepare_enable(skt->clk);
+	if (ret)
+		return ret;
+
+	if (skt->ops->hw_init) {
+		ret = skt->ops->hw_init(skt);
+		if (ret) {
+			clk_disable_unprepare(skt->clk);
+			return ret;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
+		if (gpio_is_valid(skt->stat[i].gpio)) {
+			ret = devm_gpio_request_one(skt->socket.dev.parent,
+						    skt->stat[i].gpio, GPIOF_IN,
+						    skt->stat[i].name);
+			if (ret) {
+				__soc_pcmcia_hw_shutdown(skt, i);
+				return ret;
+			}
+
+			skt->stat[i].desc = gpio_to_desc(skt->stat[i].gpio);
+
+			/* CD is active low by default */
+			if ((i == SOC_STAT_CD) ^ gpiod_is_active_low(skt->stat[i].desc))
+				gpiod_toggle_active_low(skt->stat[i].desc);
+		}
+
+		if (i < SOC_STAT_VS1 && skt->stat[i].desc) {
+			int irq = gpiod_to_irq(skt->stat[i].desc);
+
+			if (irq > 0) {
+				if (i == SOC_STAT_RDY)
+					skt->socket.pci_irq = irq;
+				else
+					skt->stat[i].irq = irq;
+			}
+		}
+
+		if (skt->stat[i].irq) {
+			ret = request_irq(skt->stat[i].irq,
+					  soc_common_pcmcia_interrupt,
+					  IRQF_TRIGGER_NONE,
+					  skt->stat[i].name, skt);
+			if (ret) {
+				__soc_pcmcia_hw_shutdown(skt, i);
+				return ret;
+			}
+		}
+	}
+
+	return ret;
+}
+
+static void soc_pcmcia_hw_enable(struct soc_pcmcia_socket *skt)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
+		if (skt->stat[i].irq) {
+			irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_RISING);
+			irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_BOTH);
+		}
+}
+
+static void soc_pcmcia_hw_disable(struct soc_pcmcia_socket *skt)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
+		if (skt->stat[i].irq)
+			irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_NONE);
+}
+
+/*
+ * The CF 3.0 specification says that cards tie VS1 to ground and leave
+ * VS2 open.  Many implementations do not wire up the VS signals, so we
+ * provide hard-coded values as per the CF 3.0 spec.
+ */
+void soc_common_cf_socket_state(struct soc_pcmcia_socket *skt,
+	struct pcmcia_state *state)
+{
+	state->vs_3v = 1;
+}
+EXPORT_SYMBOL_GPL(soc_common_cf_socket_state);
+
+static unsigned int soc_common_pcmcia_skt_state(struct soc_pcmcia_socket *skt)
+{
+	struct pcmcia_state state;
+	unsigned int stat;
+
+	memset(&state, 0, sizeof(struct pcmcia_state));
+
+	/* Make battery voltage state report 'good' */
+	state.bvd1 = 1;
+	state.bvd2 = 1;
+
+	if (skt->stat[SOC_STAT_CD].desc)
+		state.detect = !!gpiod_get_value(skt->stat[SOC_STAT_CD].desc);
+	if (skt->stat[SOC_STAT_RDY].desc)
+		state.ready = !!gpiod_get_value(skt->stat[SOC_STAT_RDY].desc);
+	if (skt->stat[SOC_STAT_BVD1].desc)
+		state.bvd1 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD1].desc);
+	if (skt->stat[SOC_STAT_BVD2].desc)
+		state.bvd2 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD2].desc);
+	if (skt->stat[SOC_STAT_VS1].desc)
+		state.vs_3v = !!gpiod_get_value(skt->stat[SOC_STAT_VS1].desc);
+	if (skt->stat[SOC_STAT_VS2].desc)
+		state.vs_Xv = !!gpiod_get_value(skt->stat[SOC_STAT_VS2].desc);
+
+	skt->ops->socket_state(skt, &state);
+
+	stat = state.detect  ? SS_DETECT : 0;
+	stat |= state.ready  ? SS_READY  : 0;
+	stat |= state.wrprot ? SS_WRPROT : 0;
+	stat |= state.vs_3v  ? SS_3VCARD : 0;
+	stat |= state.vs_Xv  ? SS_XVCARD : 0;
+
+	/* The power status of individual sockets is not available
+	 * explicitly from the hardware, so we just remember the state
+	 * and regurgitate it upon request:
+	 */
+	stat |= skt->cs_state.Vcc ? SS_POWERON : 0;
+
+	if (skt->cs_state.flags & SS_IOCARD)
+		stat |= state.bvd1 ? 0 : SS_STSCHG;
+	else {
+		if (state.bvd1 == 0)
+			stat |= SS_BATDEAD;
+		else if (state.bvd2 == 0)
+			stat |= SS_BATWARN;
+	}
+	return stat;
+}
+
+/*
+ * soc_common_pcmcia_config_skt
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * Convert PCMCIA socket state to our socket configure structure.
+ */
+static int soc_common_pcmcia_config_skt(
+	struct soc_pcmcia_socket *skt, socket_state_t *state)
+{
+	int ret;
+
+	ret = skt->ops->configure_socket(skt, state);
+	if (ret < 0) {
+		pr_err("soc_common_pcmcia: unable to configure socket %d\n",
+		       skt->nr);
+		/* restore the previous state */
+		WARN_ON(skt->ops->configure_socket(skt, &skt->cs_state));
+		return ret;
+	}
+
+	if (ret == 0) {
+		struct gpio_desc *descs[2];
+		DECLARE_BITMAP(values, 2);
+		int n = 0;
+
+		if (skt->gpio_reset) {
+			descs[n] = skt->gpio_reset;
+			__assign_bit(n++, values, state->flags & SS_RESET);
+		}
+		if (skt->gpio_bus_enable) {
+			descs[n] = skt->gpio_bus_enable;
+			__assign_bit(n++, values, state->flags & SS_OUTPUT_ENA);
+		}
+
+		if (n)
+			gpiod_set_array_value_cansleep(n, descs, NULL, values);
+
+		/*
+		 * This really needs a better solution.  The IRQ
+		 * may or may not be claimed by the driver.
+		 */
+		if (skt->irq_state != 1 && state->io_irq) {
+			skt->irq_state = 1;
+			irq_set_irq_type(skt->socket.pci_irq,
+					 IRQ_TYPE_EDGE_FALLING);
+		} else if (skt->irq_state == 1 && state->io_irq == 0) {
+			skt->irq_state = 0;
+			irq_set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
+		}
+
+		skt->cs_state = *state;
+	}
+
+	return ret;
+}
+
+/* soc_common_pcmcia_sock_init()
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * (Re-)Initialise the socket, turning on status interrupts
+ * and PCMCIA bus.  This must wait for power to stabilise
+ * so that the card status signals report correctly.
+ *
+ * Returns: 0
+ */
+static int soc_common_pcmcia_sock_init(struct pcmcia_socket *sock)
+{
+	struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
+
+	debug(skt, 2, "initializing socket\n");
+	if (skt->ops->socket_init)
+		skt->ops->socket_init(skt);
+	soc_pcmcia_hw_enable(skt);
+	return 0;
+}
+
+
+/*
+ * soc_common_pcmcia_suspend()
+ * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ *
+ * Remove power on the socket, disable IRQs from the card.
+ * Turn off status interrupts, and disable the PCMCIA bus.
+ *
+ * Returns: 0
+ */
+static int soc_common_pcmcia_suspend(struct pcmcia_socket *sock)
+{
+	struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
+
+	debug(skt, 2, "suspending socket\n");
+
+	soc_pcmcia_hw_disable(skt);
+	if (skt->ops->socket_suspend)
+		skt->ops->socket_suspend(skt);
+
+	return 0;
+}
+
+static DEFINE_SPINLOCK(status_lock);
+
+static void soc_common_check_status(struct soc_pcmcia_socket *skt)
+{
+	unsigned int events;
+
+	debug(skt, 4, "entering PCMCIA monitoring thread\n");
+
+	do {
+		unsigned int status;
+		unsigned long flags;
+
+		status = soc_common_pcmcia_skt_state(skt);
+
+		spin_lock_irqsave(&status_lock, flags);
+		events = (status ^ skt->status) & skt->cs_state.csc_mask;
+		skt->status = status;
+		spin_unlock_irqrestore(&status_lock, flags);
+
+		debug(skt, 4, "events: %s%s%s%s%s%s\n",
+			events == 0         ? "<NONE>"   : "",
+			events & SS_DETECT  ? "DETECT "  : "",
+			events & SS_READY   ? "READY "   : "",
+			events & SS_BATDEAD ? "BATDEAD " : "",
+			events & SS_BATWARN ? "BATWARN " : "",
+			events & SS_STSCHG  ? "STSCHG "  : "");
+
+		if (events)
+			pcmcia_parse_events(&skt->socket, events);
+	} while (events);
+}
+
+/* Let's poll for events in addition to IRQs since IRQ only is unreliable... */
+static void soc_common_pcmcia_poll_event(struct timer_list *t)
+{
+	struct soc_pcmcia_socket *skt = timer_container_of(skt, t, poll_timer);
+	debug(skt, 4, "polling for events\n");
+
+	mod_timer(&skt->poll_timer, jiffies + SOC_PCMCIA_POLL_PERIOD);
+
+	soc_common_check_status(skt);
+}
+
+
+/*
+ * Service routine for socket driver interrupts (requested by the
+ * low-level PCMCIA init() operation via soc_common_pcmcia_thread()).
+ * The actual interrupt-servicing work is performed by
+ * soc_common_pcmcia_thread(), largely because the Card Services event-
+ * handling code performs scheduling operations which cannot be
+ * executed from within an interrupt context.
+ */
+static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev)
+{
+	struct soc_pcmcia_socket *skt = dev;
+
+	debug(skt, 3, "servicing IRQ %d\n", irq);
+
+	soc_common_check_status(skt);
+
+	return IRQ_HANDLED;
+}
+
+
+/*
+ *  Implements the get_status() operation for the in-kernel PCMCIA
+ * service (formerly SS_GetStatus in Card Services). Essentially just
+ * fills in bits in `status' according to internal driver state or
+ * the value of the voltage detect chipselect register.
+ *
+ * As a debugging note, during card startup, the PCMCIA core issues
+ * three set_socket() commands in a row the first with RESET deasserted,
+ * the second with RESET asserted, and the last with RESET deasserted
+ * again. Following the third set_socket(), a get_status() command will
+ * be issued. The kernel is looking for the SS_READY flag (see
+ * setup_socket(), reset_socket(), and unreset_socket() in cs.c).
+ *
+ * Returns: 0
+ */
+static int
+soc_common_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
+{
+	struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
+
+	skt->status = soc_common_pcmcia_skt_state(skt);
+	*status = skt->status;
+
+	return 0;
+}
+
+
+/*
+ * Implements the set_socket() operation for the in-kernel PCMCIA
+ * service (formerly SS_SetSocket in Card Services). We more or
+ * less punt all of this work and let the kernel handle the details
+ * of power configuration, reset, &c. We also record the value of
+ * `state' in order to regurgitate it to the PCMCIA core later.
+ */
+static int soc_common_pcmcia_set_socket(
+	struct pcmcia_socket *sock, socket_state_t *state)
+{
+	struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
+
+	debug(skt, 2, "mask: %s%s%s%s%s%s flags: %s%s%s%s%s%s Vcc %d Vpp %d irq %d\n",
+			(state->csc_mask == 0)		? "<NONE> " :	"",
+			(state->csc_mask & SS_DETECT)	? "DETECT " :	"",
+			(state->csc_mask & SS_READY)	? "READY " :	"",
+			(state->csc_mask & SS_BATDEAD)	? "BATDEAD " :	"",
+			(state->csc_mask & SS_BATWARN)	? "BATWARN " :	"",
+			(state->csc_mask & SS_STSCHG)	? "STSCHG " :	"",
+			(state->flags == 0)		? "<NONE> " :	"",
+			(state->flags & SS_PWR_AUTO)	? "PWR_AUTO " :	"",
+			(state->flags & SS_IOCARD)	? "IOCARD " :	"",
+			(state->flags & SS_RESET)	? "RESET " :	"",
+			(state->flags & SS_SPKR_ENA)	? "SPKR_ENA " :	"",
+			(state->flags & SS_OUTPUT_ENA)	? "OUTPUT_ENA " : "",
+			state->Vcc, state->Vpp, state->io_irq);
+
+	return soc_common_pcmcia_config_skt(skt, state);
+}
+
+
+/*
+ * Implements the set_io_map() operation for the in-kernel PCMCIA
+ * service (formerly SS_SetIOMap in Card Services). We configure
+ * the map speed as requested, but override the address ranges
+ * supplied by Card Services.
+ *
+ * Returns: 0 on success, -1 on error
+ */
+static int soc_common_pcmcia_set_io_map(
+	struct pcmcia_socket *sock, struct pccard_io_map *map)
+{
+	struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
+	unsigned short speed = map->speed;
+
+	debug(skt, 2, "map %u  speed %u start 0x%08llx stop 0x%08llx\n",
+		map->map, map->speed, (unsigned long long)map->start,
+		(unsigned long long)map->stop);
+	debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
+		(map->flags == 0)		? "<NONE>"	: "",
+		(map->flags & MAP_ACTIVE)	? "ACTIVE "	: "",
+		(map->flags & MAP_16BIT)	? "16BIT "	: "",
+		(map->flags & MAP_AUTOSZ)	? "AUTOSZ "	: "",
+		(map->flags & MAP_0WS)		? "0WS "	: "",
+		(map->flags & MAP_WRPROT)	? "WRPROT "	: "",
+		(map->flags & MAP_USE_WAIT)	? "USE_WAIT "	: "",
+		(map->flags & MAP_PREFETCH)	? "PREFETCH "	: "");
+
+	if (map->map >= MAX_IO_WIN) {
+		printk(KERN_ERR "%s(): map (%d) out of range\n", __func__,
+		       map->map);
+		return -1;
+	}
+
+	if (map->flags & MAP_ACTIVE) {
+		if (speed == 0)
+			speed = SOC_PCMCIA_IO_ACCESS;
+	} else {
+		speed = 0;
+	}
+
+	skt->spd_io[map->map] = speed;
+	skt->ops->set_timing(skt);
+
+	if (map->stop == 1)
+		map->stop = PAGE_SIZE-1;
+
+	map->stop -= map->start;
+	map->stop += skt->socket.io_offset;
+	map->start = skt->socket.io_offset;
+
+	return 0;
+}
+
+
+/*
+ * Implements the set_mem_map() operation for the in-kernel PCMCIA
+ * service (formerly SS_SetMemMap in Card Services). We configure
+ * the map speed as requested, but override the address ranges
+ * supplied by Card Services.
+ *
+ * Returns: 0 on success, -ERRNO on error
+ */
+static int soc_common_pcmcia_set_mem_map(
+	struct pcmcia_socket *sock, struct pccard_mem_map *map)
+{
+	struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
+	struct resource *res;
+	unsigned short speed = map->speed;
+
+	debug(skt, 2, "map %u speed %u card_start %08x\n",
+		map->map, map->speed, map->card_start);
+	debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
+		(map->flags == 0)		? "<NONE>"	: "",
+		(map->flags & MAP_ACTIVE)	? "ACTIVE "	: "",
+		(map->flags & MAP_16BIT)	? "16BIT "	: "",
+		(map->flags & MAP_AUTOSZ)	? "AUTOSZ "	: "",
+		(map->flags & MAP_0WS)		? "0WS "	: "",
+		(map->flags & MAP_WRPROT)	? "WRPROT "	: "",
+		(map->flags & MAP_ATTRIB)	? "ATTRIB "	: "",
+		(map->flags & MAP_USE_WAIT)	? "USE_WAIT "	: "");
+
+	if (map->map >= MAX_WIN)
+		return -EINVAL;
+
+	if (map->flags & MAP_ACTIVE) {
+		if (speed == 0)
+			speed = 300;
+	} else {
+		speed = 0;
+	}
+
+	if (map->flags & MAP_ATTRIB) {
+		res = &skt->res_attr;
+		skt->spd_attr[map->map] = speed;
+		skt->spd_mem[map->map] = 0;
+	} else {
+		res = &skt->res_mem;
+		skt->spd_attr[map->map] = 0;
+		skt->spd_mem[map->map] = speed;
+	}
+
+	skt->ops->set_timing(skt);
+
+	map->static_start = res->start + map->card_start;
+
+	return 0;
+}
+
+struct bittbl {
+	unsigned int mask;
+	const char *name;
+};
+
+static struct bittbl status_bits[] = {
+	{ SS_WRPROT,		"SS_WRPROT"	},
+	{ SS_BATDEAD,		"SS_BATDEAD"	},
+	{ SS_BATWARN,		"SS_BATWARN"	},
+	{ SS_READY,		"SS_READY"	},
+	{ SS_DETECT,		"SS_DETECT"	},
+	{ SS_POWERON,		"SS_POWERON"	},
+	{ SS_STSCHG,		"SS_STSCHG"	},
+	{ SS_3VCARD,		"SS_3VCARD"	},
+	{ SS_XVCARD,		"SS_XVCARD"	},
+};
+
+static struct bittbl conf_bits[] = {
+	{ SS_PWR_AUTO,		"SS_PWR_AUTO"	},
+	{ SS_IOCARD,		"SS_IOCARD"	},
+	{ SS_RESET,		"SS_RESET"	},
+	{ SS_DMA_MODE,		"SS_DMA_MODE"	},
+	{ SS_SPKR_ENA,		"SS_SPKR_ENA"	},
+	{ SS_OUTPUT_ENA,	"SS_OUTPUT_ENA"	},
+};
+
+static void dump_bits(char **p, const char *prefix,
+	unsigned int val, struct bittbl *bits, int sz)
+{
+	char *b = *p;
+	int i;
+
+	b += sprintf(b, "%-9s:", prefix);
+	for (i = 0; i < sz; i++)
+		if (val & bits[i].mask)
+			b += sprintf(b, " %s", bits[i].name);
+	*b++ = '\n';
+	*p = b;
+}
+
+/*
+ * Implements the /sys/class/pcmcia_socket/??/status file.
+ *
+ * Returns: the number of characters added to the buffer
+ */
+static ssize_t show_status(
+	struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct soc_pcmcia_socket *skt =
+		container_of(dev, struct soc_pcmcia_socket, socket.dev);
+	char *p = buf;
+
+	p += sprintf(p, "slot     : %d\n", skt->nr);
+
+	dump_bits(&p, "status", skt->status,
+		  status_bits, ARRAY_SIZE(status_bits));
+	dump_bits(&p, "csc_mask", skt->cs_state.csc_mask,
+		  status_bits, ARRAY_SIZE(status_bits));
+	dump_bits(&p, "cs_flags", skt->cs_state.flags,
+		  conf_bits, ARRAY_SIZE(conf_bits));
+
+	p += sprintf(p, "Vcc      : %d\n", skt->cs_state.Vcc);
+	p += sprintf(p, "Vpp      : %d\n", skt->cs_state.Vpp);
+	p += sprintf(p, "IRQ      : %d (%d)\n", skt->cs_state.io_irq,
+		skt->socket.pci_irq);
+	if (skt->ops->show_timing)
+		p += skt->ops->show_timing(skt, p);
+
+	return p-buf;
+}
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+
+static struct pccard_operations soc_common_pcmcia_operations = {
+	.init			= soc_common_pcmcia_sock_init,
+	.suspend		= soc_common_pcmcia_suspend,
+	.get_status		= soc_common_pcmcia_get_status,
+	.set_socket		= soc_common_pcmcia_set_socket,
+	.set_io_map		= soc_common_pcmcia_set_io_map,
+	.set_mem_map		= soc_common_pcmcia_set_mem_map,
+};
+
+
+#ifdef CONFIG_CPU_FREQ
+static int soc_common_pcmcia_cpufreq_nb(struct notifier_block *nb,
+	unsigned long val, void *data)
+{
+	struct soc_pcmcia_socket *skt = container_of(nb, struct soc_pcmcia_socket, cpufreq_nb);
+	struct cpufreq_freqs *freqs = data;
+
+	return skt->ops->frequency_change(skt, val, freqs);
+}
+#endif
+
+void soc_pcmcia_init_one(struct soc_pcmcia_socket *skt,
+	const struct pcmcia_low_level *ops, struct device *dev)
+{
+	int i;
+
+	skt->ops = ops;
+	skt->socket.owner = ops->owner;
+	skt->socket.dev.parent = dev;
+	skt->socket.pci_irq = NO_IRQ;
+
+	for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
+		skt->stat[i].gpio = -EINVAL;
+}
+EXPORT_SYMBOL(soc_pcmcia_init_one);
+
+void soc_pcmcia_remove_one(struct soc_pcmcia_socket *skt)
+{
+	timer_delete_sync(&skt->poll_timer);
+
+	pcmcia_unregister_socket(&skt->socket);
+
+#ifdef CONFIG_CPU_FREQ
+	if (skt->ops->frequency_change)
+		cpufreq_unregister_notifier(&skt->cpufreq_nb,
+					    CPUFREQ_TRANSITION_NOTIFIER);
+#endif
+
+	soc_pcmcia_hw_shutdown(skt);
+
+	/* should not be required; violates some lowlevel drivers */
+	soc_common_pcmcia_config_skt(skt, &dead_socket);
+
+	iounmap(PCI_IOBASE + skt->res_io_io.start);
+	release_resource(&skt->res_attr);
+	release_resource(&skt->res_mem);
+	release_resource(&skt->res_io);
+	release_resource(&skt->res_skt);
+}
+EXPORT_SYMBOL(soc_pcmcia_remove_one);
+
+int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt)
+{
+	int ret;
+
+	skt->cs_state = dead_socket;
+
+	timer_setup(&skt->poll_timer, soc_common_pcmcia_poll_event, 0);
+	skt->poll_timer.expires = jiffies + SOC_PCMCIA_POLL_PERIOD;
+
+	ret = request_resource(&iomem_resource, &skt->res_skt);
+	if (ret)
+		goto out_err_1;
+
+	ret = request_resource(&skt->res_skt, &skt->res_io);
+	if (ret)
+		goto out_err_2;
+
+	ret = request_resource(&skt->res_skt, &skt->res_mem);
+	if (ret)
+		goto out_err_3;
+
+	ret = request_resource(&skt->res_skt, &skt->res_attr);
+	if (ret)
+		goto out_err_4;
+
+	skt->res_io_io = (struct resource)
+		 DEFINE_RES_IO_NAMED(skt->nr * 0x1000 + 0x10000, 0x1000,
+				     "PCMCIA I/O");
+	ret = pci_remap_iospace(&skt->res_io_io, skt->res_io.start);
+	if (ret)
+		goto out_err_5;
+
+	/*
+	 * We initialize default socket timing here, because
+	 * we are not guaranteed to see a SetIOMap operation at
+	 * runtime.
+	 */
+	skt->ops->set_timing(skt);
+
+	ret = soc_pcmcia_hw_init(skt);
+	if (ret)
+		goto out_err_6;
+
+	skt->socket.ops = &soc_common_pcmcia_operations;
+	skt->socket.features = SS_CAP_STATIC_MAP|SS_CAP_PCCARD;
+	skt->socket.resource_ops = &pccard_static_ops;
+	skt->socket.irq_mask = 0;
+	skt->socket.map_size = PAGE_SIZE;
+	skt->socket.io_offset = (unsigned long)skt->res_io_io.start;
+
+	skt->status = soc_common_pcmcia_skt_state(skt);
+
+#ifdef CONFIG_CPU_FREQ
+	if (skt->ops->frequency_change) {
+		skt->cpufreq_nb.notifier_call = soc_common_pcmcia_cpufreq_nb;
+
+		ret = cpufreq_register_notifier(&skt->cpufreq_nb,
+						CPUFREQ_TRANSITION_NOTIFIER);
+		if (ret < 0)
+			dev_err(skt->socket.dev.parent,
+				"unable to register CPU frequency change notifier for PCMCIA (%d)\n",
+				ret);
+	}
+#endif
+
+	ret = pcmcia_register_socket(&skt->socket);
+	if (ret)
+		goto out_err_7;
+
+	ret = device_create_file(&skt->socket.dev, &dev_attr_status);
+	if (ret)
+		goto out_err_8;
+
+	return ret;
+
+ out_err_8:
+	timer_delete_sync(&skt->poll_timer);
+	pcmcia_unregister_socket(&skt->socket);
+
+ out_err_7:
+	soc_pcmcia_hw_shutdown(skt);
+ out_err_6:
+	iounmap(PCI_IOBASE + skt->res_io_io.start);
+ out_err_5:
+	release_resource(&skt->res_attr);
+ out_err_4:
+	release_resource(&skt->res_mem);
+ out_err_3:
+	release_resource(&skt->res_io);
+ out_err_2:
+	release_resource(&skt->res_skt);
+ out_err_1:
+
+	return ret;
+}
+EXPORT_SYMBOL(soc_pcmcia_add_one);
+
+MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
+MODULE_DESCRIPTION("Linux PCMCIA Card Services: Common SoC support");
+MODULE_LICENSE("Dual MPL/GPL");

linux-7.2.3/drivers/pcmcia/soc_common.h

@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/drivers/pcmcia/soc_common.h
+ *
+ * Copyright (C) 2000 John G Dorsey <john+@cs.cmu.edu>
+ *
+ * This file contains definitions for the PCMCIA support code common to
+ * integrated SOCs like the SA-11x0 and PXA2xx microprocessors.
+ */
+#ifndef _ASM_ARCH_PCMCIA
+#define _ASM_ARCH_PCMCIA
+
+/* include the world */
+#include <linux/clk.h>
+#include <linux/cpufreq.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/soc_common.h>
+
+struct device;
+struct gpio_desc;
+struct pcmcia_low_level;
+struct regulator;
+
+struct skt_dev_info {
+	int nskt;
+	struct soc_pcmcia_socket skt[];
+};
+
+struct soc_pcmcia_timing {
+	unsigned short io;
+	unsigned short mem;
+	unsigned short attr;
+};
+
+extern void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *, struct soc_pcmcia_timing *);
+
+void soc_pcmcia_init_one(struct soc_pcmcia_socket *skt,
+	const struct pcmcia_low_level *ops, struct device *dev);
+void soc_pcmcia_remove_one(struct soc_pcmcia_socket *skt);
+int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt);
+int soc_pcmcia_request_gpiods(struct soc_pcmcia_socket *skt);
+
+void soc_common_cf_socket_state(struct soc_pcmcia_socket *skt,
+	struct pcmcia_state *state);
+
+int soc_pcmcia_regulator_set(struct soc_pcmcia_socket *skt,
+	struct soc_pcmcia_regulator *r, int v);
+
+#ifdef CONFIG_PCMCIA_DEBUG
+
+extern void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
+			     int lvl, const char *fmt, ...);
+
+#define debug(skt, lvl, fmt, arg...) \
+	soc_pcmcia_debug(skt, __func__, lvl, fmt , ## arg)
+
+#else
+#define debug(skt, lvl, fmt, arg...) do { } while (0)
+#endif
+
+
+/*
+ * The PC Card Standard, Release 7, section 4.13.4, says that twIORD
+ * has a minimum value of 165ns. Section 4.13.5 says that twIOWR has
+ * a minimum value of 165ns, as well. Section 4.7.2 (describing
+ * common and attribute memory write timing) says that twWE has a
+ * minimum value of 150ns for a 250ns cycle time (for 5V operation;
+ * see section 4.7.4), or 300ns for a 600ns cycle time (for 3.3V
+ * operation, also section 4.7.4). Section 4.7.3 says that taOE
+ * has a maximum value of 150ns for a 300ns cycle time (for 5V
+ * operation), or 300ns for a 600ns cycle time (for 3.3V operation).
+ *
+ * When configuring memory maps, Card Services appears to adopt the policy
+ * that a memory access time of "0" means "use the default." The default
+ * PCMCIA I/O command width time is 165ns. The default PCMCIA 5V attribute
+ * and memory command width time is 150ns; the PCMCIA 3.3V attribute and
+ * memory command width time is 300ns.
+ */
+#define SOC_PCMCIA_IO_ACCESS		(165)
+#define SOC_PCMCIA_5V_MEM_ACCESS	(150)
+#define SOC_PCMCIA_3V_MEM_ACCESS	(300)
+#define SOC_PCMCIA_ATTR_MEM_ACCESS	(300)
+
+/*
+ * The socket driver actually works nicely in interrupt-driven form,
+ * so the (relatively infrequent) polling is "just to be sure."
+ */
+#define SOC_PCMCIA_POLL_PERIOD    (2*HZ)
+
+
+/* I/O pins replacing memory pins
+ * (PCMCIA System Architecture, 2nd ed., by Don Anderson, p.75)
+ *
+ * These signals change meaning when going from memory-only to
+ * memory-or-I/O interface:
+ */
+#define iostschg bvd1
+#define iospkr   bvd2
+
+#endif

linux-7.2.3/drivers/pcmcia/socket_sysfs.c

@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * socket_sysfs.c -- most of socket-related sysfs output
+ *
+ * (C) 2003 - 2004		Dominik Brodowski
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/string_choices.h>
+#include <linux/major.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <asm/irq.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+#include "cs_internal.h"
+
+#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
+
+static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
+				char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+
+	if (!(s->state & SOCKET_PRESENT))
+		return -ENODEV;
+	if (s->state & SOCKET_CARDBUS)
+		return sysfs_emit(buf, "32-bit\n");
+	return sysfs_emit(buf, "16-bit\n");
+}
+static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
+
+static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
+				   char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+
+	if (!(s->state & SOCKET_PRESENT))
+		return -ENODEV;
+	if (s->socket.Vcc)
+		return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10,
+			       s->socket.Vcc % 10);
+	return sysfs_emit(buf, "X.XV\n");
+}
+static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
+
+static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
+			       char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+	if (!(s->state & SOCKET_PRESENT))
+		return -ENODEV;
+	return sysfs_emit(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
+}
+static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
+
+static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
+			       char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+	if (!(s->state & SOCKET_PRESENT))
+		return -ENODEV;
+	return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
+}
+static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
+
+
+static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
+				   const char *buf, size_t count)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+
+	if (!count)
+		return -EINVAL;
+
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
+
+	return count;
+}
+static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
+
+
+static ssize_t pccard_show_card_pm_state(struct device *dev,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+	return sysfs_emit(buf, "%s\n", str_off_on(s->state & SOCKET_SUSPEND));
+}
+
+static ssize_t pccard_store_card_pm_state(struct device *dev,
+					  struct device_attribute *attr,
+					  const char *buf, size_t count)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+	ssize_t ret = count;
+
+	if (!count)
+		return -EINVAL;
+
+	if (!strncmp(buf, "off", 3))
+		pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
+	else {
+		if (!strncmp(buf, "on", 2))
+			pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
+		else
+			ret = -EINVAL;
+	}
+
+	return ret;
+}
+static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
+
+static ssize_t pccard_store_eject(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+
+	if (!count)
+		return -EINVAL;
+
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
+
+	return count;
+}
+static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
+
+
+static ssize_t pccard_show_irq_mask(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+	return sysfs_emit(buf, "0x%04x\n", s->irq_mask);
+}
+
+static ssize_t pccard_store_irq_mask(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	ssize_t ret;
+	struct pcmcia_socket *s = to_socket(dev);
+	u32 mask;
+
+	if (!count)
+		return -EINVAL;
+
+	ret = sscanf(buf, "0x%x\n", &mask);
+
+	if (ret == 1) {
+		mutex_lock(&s->ops_mutex);
+		s->irq_mask &= mask;
+		mutex_unlock(&s->ops_mutex);
+		ret = 0;
+	}
+
+	return ret ? ret : count;
+}
+static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
+
+
+static ssize_t pccard_show_resource(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+	return sysfs_emit(buf, "%s\n", str_yes_no(s->resource_setup_done));
+}
+
+static ssize_t pccard_store_resource(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, size_t count)
+{
+	struct pcmcia_socket *s = to_socket(dev);
+
+	if (!count)
+		return -EINVAL;
+
+	mutex_lock(&s->ops_mutex);
+	if (!s->resource_setup_done)
+		s->resource_setup_done = 1;
+	mutex_unlock(&s->ops_mutex);
+
+	pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
+
+	return count;
+}
+static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
+
+static struct attribute *pccard_socket_attributes[] = {
+	&dev_attr_card_type.attr,
+	&dev_attr_card_voltage.attr,
+	&dev_attr_card_vpp.attr,
+	&dev_attr_card_vcc.attr,
+	&dev_attr_card_insert.attr,
+	&dev_attr_card_pm_state.attr,
+	&dev_attr_card_eject.attr,
+	&dev_attr_card_irq_mask.attr,
+	&dev_attr_available_resources_setup_done.attr,
+	NULL,
+};
+
+static const struct attribute_group socket_attrs = {
+	.attrs = pccard_socket_attributes,
+};
+
+int pccard_sysfs_add_socket(struct device *dev)
+{
+	return sysfs_create_group(&dev->kobj, &socket_attrs);
+}
+
+void pccard_sysfs_remove_socket(struct device *dev)
+{
+	sysfs_remove_group(&dev->kobj, &socket_attrs);
+}

linux-7.2.3/drivers/pcmcia/ti113x.h

@@ -0,0 +1,978 @@
+/*
+ * ti113x.h 1.16 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_TI113X_H
+#define _LINUX_TI113X_H
+
+
+/* Register definitions for TI 113X PCI-to-CardBus bridges */
+
+/* System Control Register */
+#define TI113X_SYSTEM_CONTROL		0x0080	/* 32 bit */
+#define  TI113X_SCR_SMIROUTE		0x04000000
+#define  TI113X_SCR_SMISTATUS		0x02000000
+#define  TI113X_SCR_SMIENB		0x01000000
+#define  TI113X_SCR_VCCPROT		0x00200000
+#define  TI113X_SCR_REDUCEZV		0x00100000
+#define  TI113X_SCR_CDREQEN		0x00080000
+#define  TI113X_SCR_CDMACHAN		0x00070000
+#define  TI113X_SCR_SOCACTIVE		0x00002000
+#define  TI113X_SCR_PWRSTREAM		0x00000800
+#define  TI113X_SCR_DELAYUP		0x00000400
+#define  TI113X_SCR_DELAYDOWN		0x00000200
+#define  TI113X_SCR_INTERROGATE		0x00000100
+#define  TI113X_SCR_CLKRUN_SEL		0x00000080
+#define  TI113X_SCR_PWRSAVINGS		0x00000040
+#define  TI113X_SCR_SUBSYSRW		0x00000020
+#define  TI113X_SCR_CB_DPAR		0x00000010
+#define  TI113X_SCR_CDMA_EN		0x00000008
+#define  TI113X_SCR_ASYNC_IRQ		0x00000004
+#define  TI113X_SCR_KEEPCLK		0x00000002
+#define  TI113X_SCR_CLKRUN_ENA		0x00000001  
+
+#define  TI122X_SCR_SER_STEP		0xc0000000
+#define  TI122X_SCR_INTRTIE		0x20000000
+#define  TIXX21_SCR_TIEALL		0x10000000
+#define  TI122X_SCR_CBRSVD		0x00400000
+#define  TI122X_SCR_MRBURSTDN		0x00008000
+#define  TI122X_SCR_MRBURSTUP		0x00004000
+#define  TI122X_SCR_RIMUX		0x00000001
+
+/* Multimedia Control Register */
+#define TI1250_MULTIMEDIA_CTL		0x0084	/* 8 bit */
+#define  TI1250_MMC_ZVOUTEN		0x80
+#define  TI1250_MMC_PORTSEL		0x40
+#define  TI1250_MMC_ZVEN1		0x02
+#define  TI1250_MMC_ZVEN0		0x01
+
+#define TI1250_GENERAL_STATUS		0x0085	/* 8 bit */
+#define TI1250_GPIO0_CONTROL		0x0088	/* 8 bit */
+#define TI1250_GPIO1_CONTROL		0x0089	/* 8 bit */
+#define TI1250_GPIO2_CONTROL		0x008a	/* 8 bit */
+#define TI1250_GPIO3_CONTROL		0x008b	/* 8 bit */
+#define TI1250_GPIO_MODE_MASK		0xc0
+
+/* IRQMUX/MFUNC Register */
+#define TI122X_MFUNC			0x008c	/* 32 bit */
+#define TI122X_MFUNC0_MASK		0x0000000f
+#define TI122X_MFUNC1_MASK		0x000000f0
+#define TI122X_MFUNC2_MASK		0x00000f00
+#define TI122X_MFUNC3_MASK		0x0000f000
+#define TI122X_MFUNC4_MASK		0x000f0000
+#define TI122X_MFUNC5_MASK		0x00f00000
+#define TI122X_MFUNC6_MASK		0x0f000000
+
+#define TI122X_MFUNC0_INTA		0x00000002
+#define TI125X_MFUNC0_INTB		0x00000001
+#define TI122X_MFUNC1_INTB		0x00000020
+#define TI122X_MFUNC3_IRQSER		0x00001000
+
+
+/* Retry Status Register */
+#define TI113X_RETRY_STATUS		0x0090	/* 8 bit */
+#define  TI113X_RSR_PCIRETRY		0x80
+#define  TI113X_RSR_CBRETRY		0x40
+#define  TI113X_RSR_TEXP_CBB		0x20
+#define  TI113X_RSR_MEXP_CBB		0x10
+#define  TI113X_RSR_TEXP_CBA		0x08
+#define  TI113X_RSR_MEXP_CBA		0x04
+#define  TI113X_RSR_TEXP_PCI		0x02
+#define  TI113X_RSR_MEXP_PCI		0x01
+
+/* Card Control Register */
+#define TI113X_CARD_CONTROL		0x0091	/* 8 bit */
+#define  TI113X_CCR_RIENB		0x80
+#define  TI113X_CCR_ZVENABLE		0x40
+#define  TI113X_CCR_PCI_IRQ_ENA		0x20
+#define  TI113X_CCR_PCI_IREQ		0x10
+#define  TI113X_CCR_PCI_CSC		0x08
+#define  TI113X_CCR_SPKROUTEN		0x02
+#define  TI113X_CCR_IFG			0x01
+
+#define  TI1220_CCR_PORT_SEL		0x20
+#define  TI122X_CCR_AUD2MUX		0x04
+
+/* Device Control Register */
+#define TI113X_DEVICE_CONTROL		0x0092	/* 8 bit */
+#define  TI113X_DCR_5V_FORCE		0x40
+#define  TI113X_DCR_3V_FORCE		0x20
+#define  TI113X_DCR_IMODE_MASK		0x06
+#define  TI113X_DCR_IMODE_ISA		0x02
+#define  TI113X_DCR_IMODE_SERIAL	0x04
+
+#define  TI12XX_DCR_IMODE_PCI_ONLY	0x00
+#define  TI12XX_DCR_IMODE_ALL_SERIAL	0x06
+
+/* Buffer Control Register */
+#define TI113X_BUFFER_CONTROL		0x0093	/* 8 bit */
+#define  TI113X_BCR_CB_READ_DEPTH	0x08
+#define  TI113X_BCR_CB_WRITE_DEPTH	0x04
+#define  TI113X_BCR_PCI_READ_DEPTH	0x02
+#define  TI113X_BCR_PCI_WRITE_DEPTH	0x01
+
+/* Diagnostic Register */
+#define TI1250_DIAGNOSTIC		0x0093	/* 8 bit */
+#define  TI1250_DIAG_TRUE_VALUE		0x80
+#define  TI1250_DIAG_PCI_IREQ		0x40
+#define  TI1250_DIAG_PCI_CSC		0x20
+#define  TI1250_DIAG_ASYNC_CSC		0x01
+
+/* DMA Registers */
+#define TI113X_DMA_0			0x0094	/* 32 bit */
+#define TI113X_DMA_1			0x0098	/* 32 bit */
+
+/* ExCA IO offset registers */
+#define TI113X_IO_OFFSET(map)		(0x36+((map)<<1))
+
+/* EnE test register */
+#define ENE_TEST_C9			0xc9	/* 8bit */
+#define ENE_TEST_C9_TLTENABLE		0x02
+#define ENE_TEST_C9_PFENABLE_F0		0x04
+#define ENE_TEST_C9_PFENABLE_F1		0x08
+#define ENE_TEST_C9_PFENABLE		(ENE_TEST_C9_PFENABLE_F0 | ENE_TEST_C9_PFENABLE_F1)
+#define ENE_TEST_C9_WPDISALBLE_F0	0x40
+#define ENE_TEST_C9_WPDISALBLE_F1	0x80
+#define ENE_TEST_C9_WPDISALBLE		(ENE_TEST_C9_WPDISALBLE_F0 | ENE_TEST_C9_WPDISALBLE_F1)
+
+/*
+ * Texas Instruments CardBus controller overrides.
+ */
+#define ti_sysctl(socket)	((socket)->private[0])
+#define ti_cardctl(socket)	((socket)->private[1])
+#define ti_devctl(socket)	((socket)->private[2])
+#define ti_diag(socket)		((socket)->private[3])
+#define ti_mfunc(socket)	((socket)->private[4])
+#define ene_test_c9(socket)	((socket)->private[5])
+
+/*
+ * These are the TI specific power management handlers.
+ */
+static void ti_save_state(struct yenta_socket *socket)
+{
+	ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC);
+	ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL);
+	ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL);
+	ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC);
+
+	if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
+		ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9);
+}
+
+static void ti_restore_state(struct yenta_socket *socket)
+{
+	config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
+	config_writel(socket, TI122X_MFUNC, ti_mfunc(socket));
+	config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket));
+	config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket));
+	config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket));
+
+	if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
+		config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket));
+}
+
+/*
+ *	Zoom video control for TI122x/113x chips
+ */
+
+static void ti_zoom_video(struct pcmcia_socket *sock, int onoff)
+{
+	u8 reg;
+	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+
+	/* If we don't have a Zoom Video switch this is harmless,
+	   we just tristate the unused (ZV) lines */
+	reg = config_readb(socket, TI113X_CARD_CONTROL);
+	if (onoff)
+		/* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
+		reg |= TI113X_CCR_ZVENABLE;
+	else
+		reg &= ~TI113X_CCR_ZVENABLE;
+	config_writeb(socket, TI113X_CARD_CONTROL, reg);
+}
+
+/*
+ *	The 145x series can also use this. They have an additional
+ *	ZV autodetect mode we don't use but don't actually need.
+ *	FIXME: manual says its in func0 and func1 but disagrees with
+ *	itself about this - do we need to force func0, if so we need
+ *	to know a lot more about socket pairings in pcmcia_socket than
+ *	we do now.. uggh.
+ */
+ 
+static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff)
+{	
+	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+	int shift = 0;
+	u8 reg;
+
+	ti_zoom_video(sock, onoff);
+
+	reg = config_readb(socket, TI1250_MULTIMEDIA_CTL);
+	reg |= TI1250_MMC_ZVOUTEN;	/* ZV bus enable */
+
+	if(PCI_FUNC(socket->dev->devfn)==1)
+		shift = 1;
+	
+	if(onoff)
+	{
+		reg &= ~(1<<6); 	/* Clear select bit */
+		reg |= shift<<6;	/* Favour our socket */
+		reg |= 1<<shift;	/* Socket zoom video on */
+	}
+	else
+	{
+		reg &= ~(1<<6); 	/* Clear select bit */
+		reg |= (1^shift)<<6;	/* Favour other socket */
+		reg &= ~(1<<shift);	/* Socket zoon video off */
+	}
+
+	config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg);
+}
+
+static void ti_set_zv(struct yenta_socket *socket)
+{
+	if(socket->dev->vendor == PCI_VENDOR_ID_TI)
+	{
+		switch(socket->dev->device)
+		{
+			/* There may be more .. */
+			case PCI_DEVICE_ID_TI_1220:
+			case PCI_DEVICE_ID_TI_1221:
+			case PCI_DEVICE_ID_TI_1225:
+			case PCI_DEVICE_ID_TI_4510:
+				socket->socket.zoom_video = ti_zoom_video;
+				break;	
+			case PCI_DEVICE_ID_TI_1250:
+			case PCI_DEVICE_ID_TI_1251A:
+			case PCI_DEVICE_ID_TI_1251B:
+			case PCI_DEVICE_ID_TI_1450:
+				socket->socket.zoom_video = ti1250_zoom_video;
+		}
+	}
+}
+
+
+/*
+ * Generic TI init - TI has an extension for the
+ * INTCTL register that sets the PCI CSC interrupt.
+ * Make sure we set it correctly at open and init
+ * time
+ * - override: disable the PCI CSC interrupt. This makes
+ *   it possible to use the CSC interrupt to probe the
+ *   ISA interrupts.
+ * - init: set the interrupt to match our PCI state.
+ *   This makes us correctly get PCI CSC interrupt
+ *   events.
+ */
+static int ti_init(struct yenta_socket *socket)
+{
+	u8 new, reg = exca_readb(socket, I365_INTCTL);
+
+	new = reg & ~I365_INTR_ENA;
+	if (socket->dev->irq)
+		new |= I365_INTR_ENA;
+	if (new != reg)
+		exca_writeb(socket, I365_INTCTL, new);
+	return 0;
+}
+
+static int ti_override(struct yenta_socket *socket)
+{
+	u8 new, reg = exca_readb(socket, I365_INTCTL);
+
+	new = reg & ~I365_INTR_ENA;
+	if (new != reg)
+		exca_writeb(socket, I365_INTCTL, new);
+
+	ti_set_zv(socket);
+
+	return 0;
+}
+
+static void ti113x_use_isa_irq(struct yenta_socket *socket)
+{
+	int isa_irq = -1;
+	u8 intctl;
+	u32 isa_irq_mask = 0;
+
+	if (!isa_probe)
+		return;
+
+	/* get a free isa int */
+	isa_irq_mask = yenta_probe_irq(socket, isa_interrupts);
+	if (!isa_irq_mask)
+		return; /* no useable isa irq found */
+
+	/* choose highest available */
+	for (; isa_irq_mask; isa_irq++)
+		isa_irq_mask >>= 1;
+	socket->cb_irq = isa_irq;
+
+	exca_writeb(socket, I365_CSCINT, (isa_irq << 4));
+
+	intctl = exca_readb(socket, I365_INTCTL);
+	intctl &= ~(I365_INTR_ENA | I365_IRQ_MASK);     /* CSC Enable */
+	exca_writeb(socket, I365_INTCTL, intctl);
+
+	dev_info(&socket->dev->dev,
+		"Yenta TI113x: using isa irq %d for CardBus\n", isa_irq);
+}
+
+
+static int ti113x_override(struct yenta_socket *socket)
+{
+	u8 cardctl;
+
+	cardctl = config_readb(socket, TI113X_CARD_CONTROL);
+	cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC);
+	if (socket->dev->irq)
+		cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ;
+	else
+		ti113x_use_isa_irq(socket);
+
+	config_writeb(socket, TI113X_CARD_CONTROL, cardctl);
+
+	return ti_override(socket);
+}
+
+
+/* irqrouting for func0, probes PCI interrupt and ISA interrupts */
+static void ti12xx_irqroute_func0(struct yenta_socket *socket)
+{
+	u32 mfunc, mfunc_old, devctl;
+	u8 gpio3, gpio3_old;
+	int pci_irq_status;
+
+	mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
+	devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
+	dev_info(&socket->dev->dev, "TI: mfunc 0x%08x, devctl 0x%02x\n",
+		 mfunc, devctl);
+
+	/* make sure PCI interrupts are enabled before probing */
+	ti_init(socket);
+
+	/* test PCI interrupts first. only try fixing if return value is 0! */
+	pci_irq_status = yenta_probe_cb_irq(socket);
+	if (pci_irq_status)
+		goto out;
+
+	/*
+	 * We're here which means PCI interrupts are _not_ delivered. try to
+	 * find the right setting (all serial or parallel)
+	 */
+	dev_info(&socket->dev->dev,
+		 "TI: probing PCI interrupt failed, trying to fix\n");
+
+	/* for serial PCI make sure MFUNC3 is set to IRQSER */
+	if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
+		switch (socket->dev->device) {
+		case PCI_DEVICE_ID_TI_1250:
+		case PCI_DEVICE_ID_TI_1251A:
+		case PCI_DEVICE_ID_TI_1251B:
+		case PCI_DEVICE_ID_TI_1450:
+		case PCI_DEVICE_ID_TI_1451A:
+		case PCI_DEVICE_ID_TI_4450:
+		case PCI_DEVICE_ID_TI_4451:
+			/* these chips have no IRQSER setting in MFUNC3  */
+			break;
+
+		default:
+			mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
+
+			/* write down if changed, probe */
+			if (mfunc != mfunc_old) {
+				config_writel(socket, TI122X_MFUNC, mfunc);
+
+				pci_irq_status = yenta_probe_cb_irq(socket);
+				if (pci_irq_status == 1) {
+					dev_info(&socket->dev->dev,
+						 "TI: all-serial interrupts ok\n");
+					mfunc_old = mfunc;
+					goto out;
+				}
+
+				/* not working, back to old value */
+				mfunc = mfunc_old;
+				config_writel(socket, TI122X_MFUNC, mfunc);
+
+				if (pci_irq_status == -1)
+					goto out;
+			}
+		}
+
+		/* serial PCI interrupts not working fall back to parallel */
+		dev_info(&socket->dev->dev,
+			 "TI: falling back to parallel PCI interrupts\n");
+		devctl &= ~TI113X_DCR_IMODE_MASK;
+		devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */
+		config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
+	}
+
+	/* parallel PCI interrupts: route INTA */
+	switch (socket->dev->device) {
+	case PCI_DEVICE_ID_TI_1250:
+	case PCI_DEVICE_ID_TI_1251A:
+	case PCI_DEVICE_ID_TI_1251B:
+	case PCI_DEVICE_ID_TI_1450:
+		/* make sure GPIO3 is set to INTA */
+		gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL);
+		gpio3 &= ~TI1250_GPIO_MODE_MASK;
+		if (gpio3 != gpio3_old)
+			config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
+		break;
+
+	default:
+		gpio3 = gpio3_old = 0;
+
+		mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA;
+		if (mfunc != mfunc_old)
+			config_writel(socket, TI122X_MFUNC, mfunc);
+	}
+
+	/* time to probe again */
+	pci_irq_status = yenta_probe_cb_irq(socket);
+	if (pci_irq_status == 1) {
+		mfunc_old = mfunc;
+		dev_info(&socket->dev->dev, "TI: parallel PCI interrupts ok\n");
+	} else {
+		/* not working, back to old value */
+		mfunc = mfunc_old;
+		config_writel(socket, TI122X_MFUNC, mfunc);
+		if (gpio3 != gpio3_old)
+			config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old);
+	}
+
+out:
+	if (pci_irq_status < 1) {
+		socket->cb_irq = 0;
+		dev_info(&socket->dev->dev,
+			 "Yenta TI: no PCI interrupts. Fish. Please report.\n");
+	}
+}
+
+
+/* changes the irq of func1 to match that of func0 */
+static int ti12xx_align_irqs(struct yenta_socket *socket, int *old_irq)
+{
+	struct pci_dev *func0;
+
+	/* find func0 device */
+	func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07);
+	if (!func0)
+		return 0;
+
+	if (old_irq)
+		*old_irq = socket->cb_irq;
+	socket->cb_irq = socket->dev->irq = func0->irq;
+
+	pci_dev_put(func0);
+
+	return 1;
+}
+
+/*
+ * ties INTA and INTB together. also changes the devices irq to that of
+ * the function 0 device. call from func1 only.
+ * returns 1 if INTRTIE changed, 0 otherwise.
+ */
+static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq)
+{
+	u32 sysctl;
+	int ret;
+
+	sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	if (sysctl & TI122X_SCR_INTRTIE)
+		return 0;
+
+	/* align */
+	ret = ti12xx_align_irqs(socket, old_irq);
+	if (!ret)
+		return 0;
+
+	/* tie */
+	sysctl |= TI122X_SCR_INTRTIE;
+	config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
+
+	return 1;
+}
+
+/* undo what ti12xx_tie_interrupts() did */
+static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq)
+{
+	u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	sysctl &= ~TI122X_SCR_INTRTIE;
+	config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
+
+	socket->cb_irq = socket->dev->irq = old_irq;
+}
+
+/* 
+ * irqrouting for func1, plays with INTB routing
+ * only touches MFUNC for INTB routing. all other bits are taken
+ * care of in func0 already.
+ */
+static void ti12xx_irqroute_func1(struct yenta_socket *socket)
+{
+	u32 mfunc, mfunc_old, devctl, sysctl;
+	int pci_irq_status;
+
+	mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
+	devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
+	dev_info(&socket->dev->dev, "TI: mfunc 0x%08x, devctl 0x%02x\n",
+		 mfunc, devctl);
+
+	/* if IRQs are configured as tied, align irq of func1 with func0 */
+	sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	if (sysctl & TI122X_SCR_INTRTIE)
+		ti12xx_align_irqs(socket, NULL);
+
+	/* make sure PCI interrupts are enabled before probing */
+	ti_init(socket);
+
+	/* test PCI interrupts first. only try fixing if return value is 0! */
+	pci_irq_status = yenta_probe_cb_irq(socket);
+	if (pci_irq_status)
+		goto out;
+
+	/*
+	 * We're here which means PCI interrupts are _not_ delivered. try to
+	 * find the right setting
+	 */
+	dev_info(&socket->dev->dev,
+		 "TI: probing PCI interrupt failed, trying to fix\n");
+
+	/* if all serial: set INTRTIE, probe again */
+	if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
+		int old_irq;
+
+		if (ti12xx_tie_interrupts(socket, &old_irq)) {
+			pci_irq_status = yenta_probe_cb_irq(socket);
+			if (pci_irq_status == 1) {
+				dev_info(&socket->dev->dev,
+					 "TI: all-serial interrupts, tied ok\n");
+				goto out;
+			}
+
+			ti12xx_untie_interrupts(socket, old_irq);
+		}
+	}
+	/* parallel PCI: route INTB, probe again */
+	else {
+		int old_irq;
+
+		switch (socket->dev->device) {
+		case PCI_DEVICE_ID_TI_1250:
+			/* the 1250 has one pin for IRQSER/INTB depending on devctl */
+			break;
+
+		case PCI_DEVICE_ID_TI_1251A:
+		case PCI_DEVICE_ID_TI_1251B:
+		case PCI_DEVICE_ID_TI_1450:
+			/*
+			 *  those have a pin for IRQSER/INTB plus INTB in MFUNC0
+			 *  we alread probed the shared pin, now go for MFUNC0
+			 */
+			mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB;
+			break;
+
+		default:
+			mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB;
+			break;
+		}
+
+		/* write, probe */
+		if (mfunc != mfunc_old) {
+			config_writel(socket, TI122X_MFUNC, mfunc);
+
+			pci_irq_status = yenta_probe_cb_irq(socket);
+			if (pci_irq_status == 1) {
+				dev_info(&socket->dev->dev,
+					 "TI: parallel PCI interrupts ok\n");
+				goto out;
+			}
+
+			mfunc = mfunc_old;
+			config_writel(socket, TI122X_MFUNC, mfunc);
+
+			if (pci_irq_status == -1)
+				goto out;
+		}
+
+		/* still nothing: set INTRTIE */
+		if (ti12xx_tie_interrupts(socket, &old_irq)) {
+			pci_irq_status = yenta_probe_cb_irq(socket);
+			if (pci_irq_status == 1) {
+				dev_info(&socket->dev->dev,
+					 "TI: parallel PCI interrupts, tied ok\n");
+				goto out;
+			}
+
+			ti12xx_untie_interrupts(socket, old_irq);
+		}
+	}
+
+out:
+	if (pci_irq_status < 1) {
+		socket->cb_irq = 0;
+		dev_info(&socket->dev->dev,
+			 "TI: no PCI interrupts. Fish. Please report.\n");
+	}
+}
+
+
+/* Returns true value if the second slot of a two-slot controller is empty */
+static int ti12xx_2nd_slot_empty(struct yenta_socket *socket)
+{
+	struct pci_dev *func;
+	struct yenta_socket *slot2;
+	int devfn;
+	unsigned int state;
+	int ret = 1;
+	u32 sysctl;
+
+	/* catch the two-slot controllers */
+	switch (socket->dev->device) {
+	case PCI_DEVICE_ID_TI_1220:
+	case PCI_DEVICE_ID_TI_1221:
+	case PCI_DEVICE_ID_TI_1225:
+	case PCI_DEVICE_ID_TI_1251A:
+	case PCI_DEVICE_ID_TI_1251B:
+	case PCI_DEVICE_ID_TI_1420:
+	case PCI_DEVICE_ID_TI_1450:
+	case PCI_DEVICE_ID_TI_1451A:
+	case PCI_DEVICE_ID_TI_1520:
+	case PCI_DEVICE_ID_TI_1620:
+	case PCI_DEVICE_ID_TI_4520:
+	case PCI_DEVICE_ID_TI_4450:
+	case PCI_DEVICE_ID_TI_4451:
+		/*
+		 * there are way more, but they need to be added in yenta_socket.c
+		 * and pci_ids.h first anyway.
+		 */
+		break;
+
+	case PCI_DEVICE_ID_TI_XX12:
+	case PCI_DEVICE_ID_TI_X515:
+	case PCI_DEVICE_ID_TI_X420:
+	case PCI_DEVICE_ID_TI_X620:
+	case PCI_DEVICE_ID_TI_XX21_XX11:
+	case PCI_DEVICE_ID_TI_7410:
+	case PCI_DEVICE_ID_TI_7610:
+		/*
+		 * those are either single or dual slot CB with additional functions
+		 * like 1394, smartcard reader, etc. check the TIEALL flag for them
+		 * the TIEALL flag binds the IRQ of all functions together.
+		 * we catch the single slot variants later.
+		 */
+		sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
+		if (sysctl & TIXX21_SCR_TIEALL)
+			return 0;
+
+		break;
+
+	/* single-slot controllers have the 2nd slot empty always :) */
+	default:
+		return 1;
+	}
+
+	/* get other slot */
+	devfn = socket->dev->devfn & ~0x07;
+	func = pci_get_slot(socket->dev->bus,
+	                    (socket->dev->devfn & 0x07) ? devfn : devfn | 0x01);
+	if (!func)
+		return 1;
+
+	/*
+	 * check that the device id of both slots match. this is needed for the
+	 * XX21 and the XX11 controller that share the same device id for single
+	 * and dual slot controllers. return '2nd slot empty'. we already checked
+	 * if the interrupt is tied to another function.
+	 */
+	if (socket->dev->device != func->device)
+		goto out;
+
+	slot2 = pci_get_drvdata(func);
+	if (!slot2)
+		goto out;
+
+	/* check state */
+	yenta_get_status(&slot2->socket, &state);
+	if (state & SS_DETECT) {
+		ret = 0;
+		goto out;
+	}
+
+out:
+	pci_dev_put(func);
+	return ret;
+}
+
+/*
+ * TI specifiy parts for the power hook.
+ *
+ * some TI's with some CB's produces interrupt storm on power on. it has been
+ * seen with atheros wlan cards on TI1225 and TI1410. solution is simply to
+ * disable any CB interrupts during this time.
+ */
+static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation)
+{
+	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+	u32 mfunc, devctl, sysctl;
+	u8 gpio3;
+
+	/* only POWER_PRE and POWER_POST are interesting */
+	if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST))
+		return 0;
+
+	devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
+	sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	mfunc = config_readl(socket, TI122X_MFUNC);
+
+	/*
+	 * all serial/tied: only disable when modparm set. always doing it
+	 * would mean a regression for working setups 'cos it disables the
+	 * interrupts for both both slots on 2-slot controllers
+	 * (and users of single slot controllers where it's save have to
+	 * live with setting the modparm, most don't have to anyway)
+	 */
+	if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) &&
+	    (pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) {
+		switch (socket->dev->device) {
+		case PCI_DEVICE_ID_TI_1250:
+		case PCI_DEVICE_ID_TI_1251A:
+		case PCI_DEVICE_ID_TI_1251B:
+		case PCI_DEVICE_ID_TI_1450:
+		case PCI_DEVICE_ID_TI_1451A:
+		case PCI_DEVICE_ID_TI_4450:
+		case PCI_DEVICE_ID_TI_4451:
+			/* these chips have no IRQSER setting in MFUNC3  */
+			break;
+
+		default:
+			if (operation == HOOK_POWER_PRE)
+				mfunc = (mfunc & ~TI122X_MFUNC3_MASK);
+			else
+				mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
+		}
+
+		return 0;
+	}
+
+	/* do the job differently for func0/1 */
+	if ((PCI_FUNC(socket->dev->devfn) == 0) ||
+	    ((sysctl & TI122X_SCR_INTRTIE) &&
+	     (pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) {
+		/* some bridges are different */
+		switch (socket->dev->device) {
+		case PCI_DEVICE_ID_TI_1250:
+		case PCI_DEVICE_ID_TI_1251A:
+		case PCI_DEVICE_ID_TI_1251B:
+		case PCI_DEVICE_ID_TI_1450:
+			/* those oldies use gpio3 for INTA */
+			gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL);
+			if (operation == HOOK_POWER_PRE)
+				gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40;
+			else
+				gpio3 &= ~TI1250_GPIO_MODE_MASK;
+			config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
+			break;
+
+		default:
+			/* all new bridges are the same */
+			if (operation == HOOK_POWER_PRE)
+				mfunc &= ~TI122X_MFUNC0_MASK;
+			else
+				mfunc |= TI122X_MFUNC0_INTA;
+			config_writel(socket, TI122X_MFUNC, mfunc);
+		}
+	} else {
+		switch (socket->dev->device) {
+		case PCI_DEVICE_ID_TI_1251A:
+		case PCI_DEVICE_ID_TI_1251B:
+		case PCI_DEVICE_ID_TI_1450:
+			/* those have INTA elsewhere and INTB in MFUNC0 */
+			if (operation == HOOK_POWER_PRE)
+				mfunc &= ~TI122X_MFUNC0_MASK;
+			else
+				mfunc |= TI125X_MFUNC0_INTB;
+			config_writel(socket, TI122X_MFUNC, mfunc);
+
+			break;
+
+		default:
+			/* all new bridges are the same */
+			if (operation == HOOK_POWER_PRE)
+				mfunc &= ~TI122X_MFUNC1_MASK;
+			else
+				mfunc |= TI122X_MFUNC1_INTB;
+			config_writel(socket, TI122X_MFUNC, mfunc);
+		}
+	}
+
+	return 0;
+}
+
+static int ti12xx_override(struct yenta_socket *socket)
+{
+	u32 val, val_orig;
+
+	/* make sure that memory burst is active */
+	val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL);
+	if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) {
+		dev_info(&socket->dev->dev, "Disabling CLKRUN feature\n");
+		val |= TI113X_SCR_KEEPCLK;
+	}
+	if (!(val & TI122X_SCR_MRBURSTUP)) {
+		dev_info(&socket->dev->dev,
+			 "Enabling burst memory read transactions\n");
+		val |= TI122X_SCR_MRBURSTUP;
+	}
+	if (val_orig != val)
+		config_writel(socket, TI113X_SYSTEM_CONTROL, val);
+
+	/*
+	 * Yenta expects controllers to use CSCINT to route
+	 * CSC interrupts to PCI rather than INTVAL.
+	 */
+	val = config_readb(socket, TI1250_DIAGNOSTIC);
+	dev_info(&socket->dev->dev, "Using %s to route CSC interrupts to PCI\n",
+		 (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL");
+	dev_info(&socket->dev->dev, "Routing CardBus interrupts to %s\n",
+		 (val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA");
+
+	/* do irqrouting, depending on function */
+	if (PCI_FUNC(socket->dev->devfn) == 0)
+		ti12xx_irqroute_func0(socket);
+	else
+		ti12xx_irqroute_func1(socket);
+
+	/* install power hook */
+	socket->socket.power_hook = ti12xx_power_hook;
+
+	return ti_override(socket);
+}
+
+
+static int ti1250_override(struct yenta_socket *socket)
+{
+	u8 old, diag;
+
+	old = config_readb(socket, TI1250_DIAGNOSTIC);
+	diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ);
+	if (socket->cb_irq)
+		diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ;
+
+	if (diag != old) {
+		dev_info(&socket->dev->dev,
+			 "adjusting diagnostic: %02x -> %02x\n",
+			 old, diag);
+		config_writeb(socket, TI1250_DIAGNOSTIC, diag);
+	}
+
+	return ti12xx_override(socket);
+}
+
+
+/**
+ * EnE specific part. EnE bridges are register compatible with TI bridges but
+ * have their own test registers and more important their own little problems.
+ * Some fixup code to make everybody happy (TM).
+ */
+
+#ifdef CONFIG_YENTA_ENE_TUNE
+/*
+ * set/clear various test bits:
+ * Defaults to clear the bit.
+ * - mask (u8) defines what bits to change
+ * - bits (u8) is the values to change them to
+ * -> it's
+ * 	current = (current & ~mask) | bits
+ */
+/* pci ids of devices that wants to have the bit set */
+#define DEVID(_vend,_dev,_subvend,_subdev,mask,bits) {		\
+		.vendor		= _vend,			\
+		.device		= _dev,				\
+		.subvendor	= _subvend,			\
+		.subdevice	= _subdev,			\
+		.driver_data	= ((mask) << 8 | (bits)),	\
+	}
+static struct pci_device_id ene_tune_tbl[] = {
+	/* Echo Audio products based on motorola DSP56301 and DSP56361 */
+	DEVID(PCI_VENDOR_ID_MOTOROLA, 0x1801, 0xECC0, PCI_ANY_ID,
+		ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE),
+	DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID,
+		ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE),
+
+	{}
+};
+
+static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus)
+{
+	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+	struct pci_dev *dev;
+	struct pci_device_id *id = NULL;
+	u8 test_c9, old_c9, mask, bits;
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+		id = (struct pci_device_id *) pci_match_id(ene_tune_tbl, dev);
+		if (id)
+			break;
+	}
+
+	test_c9 = old_c9 = config_readb(socket, ENE_TEST_C9);
+	if (id) {
+		mask = (id->driver_data >> 8) & 0xFF;
+		bits = id->driver_data & 0xFF;
+
+		test_c9 = (test_c9 & ~mask) | bits;
+	}
+	else
+		/* default to clear TLTEnable bit, old behaviour */
+		test_c9 &= ~ENE_TEST_C9_TLTENABLE;
+
+	dev_info(&socket->dev->dev,
+		 "EnE: changing testregister 0xC9, %02x -> %02x\n",
+		 old_c9, test_c9);
+	config_writeb(socket, ENE_TEST_C9, test_c9);
+}
+
+static int ene_override(struct yenta_socket *socket)
+{
+	/* install tune_bridge() function */
+	socket->socket.tune_bridge = ene_tune_bridge;
+
+	return ti1250_override(socket);
+}
+#else
+#  define ene_override ti1250_override
+#endif /* !CONFIG_YENTA_ENE_TUNE */
+
+#endif /* _LINUX_TI113X_H */
+

linux-7.2.3/drivers/pcmcia/topic.h

@@ -0,0 +1,168 @@
+/*
+ * topic.h 1.8 1999/08/28 04:01:47
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ * topic.h $Release$ 1999/08/28 04:01:47
+ */
+
+#ifndef _LINUX_TOPIC_H
+#define _LINUX_TOPIC_H
+
+/* Register definitions for Toshiba ToPIC95/97/100 controllers */
+
+#define TOPIC_SOCKET_CONTROL		0x0090	/* 32 bit */
+#define  TOPIC_SCR_IRQSEL		0x00000001
+
+#define TOPIC_SLOT_CONTROL		0x00a0	/* 8 bit */
+#define  TOPIC_SLOT_SLOTON		0x80
+#define  TOPIC_SLOT_SLOTEN		0x40
+#define  TOPIC_SLOT_ID_LOCK		0x20
+#define  TOPIC_SLOT_ID_WP		0x10
+#define  TOPIC_SLOT_PORT_MASK		0x0c
+#define  TOPIC_SLOT_PORT_SHIFT		2
+#define  TOPIC_SLOT_OFS_MASK		0x03
+
+#define TOPIC_CARD_CONTROL		0x00a1	/* 8 bit */
+#define  TOPIC_CCR_INTB			0x20
+#define  TOPIC_CCR_INTA			0x10
+#define  TOPIC_CCR_CLOCK		0x0c
+#define  TOPIC_CCR_PCICLK		0x0c
+#define  TOPIC_CCR_PCICLK_2		0x08
+#define  TOPIC_CCR_CCLK			0x04
+
+#define TOPIC97_INT_CONTROL		0x00a1	/* 8 bit */
+#define  TOPIC97_ICR_INTB		0x20
+#define  TOPIC97_ICR_INTA		0x10
+#define  TOPIC97_ICR_STSIRQNP		0x04
+#define  TOPIC97_ICR_IRQNP		0x02
+#define  TOPIC97_ICR_IRQSEL		0x01
+
+#define TOPIC_CARD_DETECT		0x00a3	/* 8 bit */
+#define  TOPIC_CDR_MODE_PC32		0x80
+#define  TOPIC_CDR_VS1			0x04
+#define  TOPIC_CDR_VS2			0x02
+#define  TOPIC_CDR_SW_DETECT		0x01
+
+#define TOPIC_REGISTER_CONTROL		0x00a4	/* 32 bit */
+#define  TOPIC_RCR_RESUME_RESET		0x80000000
+#define  TOPIC_RCR_REMOVE_RESET		0x40000000
+#define  TOPIC97_RCR_CLKRUN_ENA		0x20000000
+#define  TOPIC97_RCR_TESTMODE		0x10000000
+#define  TOPIC97_RCR_IOPLUP		0x08000000
+#define  TOPIC_RCR_BUFOFF_PWROFF	0x02000000
+#define  TOPIC_RCR_BUFOFF_SIGOFF	0x01000000
+#define  TOPIC97_RCR_CB_DEV_MASK	0x0000f800
+#define  TOPIC97_RCR_CB_DEV_SHIFT	11
+#define  TOPIC97_RCR_RI_DISABLE		0x00000004
+#define  TOPIC97_RCR_CAUDIO_OFF		0x00000002
+#define  TOPIC_RCR_CAUDIO_INVERT	0x00000001
+
+#define TOPIC97_MISC1			0x00ad  /* 8bit */
+#define  TOPIC97_MISC1_CLOCKRUN_ENABLE	0x80
+#define  TOPIC97_MISC1_CLOCKRUN_MODE	0x40
+#define  TOPIC97_MISC1_DETECT_REQ_ENA	0x10
+#define  TOPIC97_MISC1_SCK_CLEAR_DIS	0x04
+#define  TOPIC97_MISC1_R2_LOW_ENABLE	0x10
+
+#define TOPIC97_MISC2			0x00ae  /* 8 bit */
+#define  TOPIC97_MISC2_SPWRCLK_MASK	0x70
+#define  TOPIC97_MISC2_SPWRMOD		0x08
+#define  TOPIC97_MISC2_SPWR_ENABLE	0x04
+#define  TOPIC97_MISC2_ZV_MODE		0x02
+#define  TOPIC97_MISC2_ZV_ENABLE	0x01
+
+#define TOPIC97_ZOOM_VIDEO_CONTROL	0x009c  /* 8 bit */
+#define  TOPIC97_ZV_CONTROL_ENABLE	0x01
+
+#define TOPIC97_AUDIO_VIDEO_SWITCH	0x003c  /* 8 bit */
+#define  TOPIC97_AVS_AUDIO_CONTROL	0x02
+#define  TOPIC97_AVS_VIDEO_CONTROL	0x01
+
+#define TOPIC_EXCA_IF_CONTROL		0x3e	/* 8 bit */
+#define TOPIC_EXCA_IFC_33V_ENA		0x01
+
+#define TOPIC_PCI_CFG_PPBCN		0x3e	/* 16-bit */
+#define TOPIC_PCI_CFG_PPBCN_WBEN	0x0400
+
+static void topic97_zoom_video(struct pcmcia_socket *sock, int onoff)
+{
+	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
+	u8 reg_zv, reg;
+
+	reg_zv = config_readb(socket, TOPIC97_ZOOM_VIDEO_CONTROL);
+	if (onoff) {
+		reg_zv |= TOPIC97_ZV_CONTROL_ENABLE;
+		config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
+
+		reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
+		reg |= TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL;
+		config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
+	} else {
+		reg_zv &= ~TOPIC97_ZV_CONTROL_ENABLE;
+		config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
+
+		reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
+		reg &= ~(TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL);
+		config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
+	}
+}
+
+static int topic97_override(struct yenta_socket *socket)
+{
+	/* ToPIC97/100 support ZV */
+	socket->socket.zoom_video = topic97_zoom_video;
+	return 0;
+}
+
+
+static int topic95_override(struct yenta_socket *socket)
+{
+	u8 fctrl;
+	u16 ppbcn;
+
+	/* enable 3.3V support for 16bit cards */
+	fctrl = exca_readb(socket, TOPIC_EXCA_IF_CONTROL);
+	exca_writeb(socket, TOPIC_EXCA_IF_CONTROL, fctrl | TOPIC_EXCA_IFC_33V_ENA);
+
+	/* tell yenta to use exca registers to power 16bit cards */
+	socket->flags |= YENTA_16BIT_POWER_EXCA | YENTA_16BIT_POWER_DF;
+
+	/* Disable write buffers to prevent lockups under load with numerous
+	   Cardbus cards, observed on Tecra 500CDT and reported elsewhere on the
+	   net.  This is not a power-on default according to the datasheet
+	   but some BIOSes seem to set it. */
+	if (pci_read_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, &ppbcn) == 0
+	    && socket->dev->revision <= 7
+	    && (ppbcn & TOPIC_PCI_CFG_PPBCN_WBEN)) {
+		ppbcn &= ~TOPIC_PCI_CFG_PPBCN_WBEN;
+		pci_write_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, ppbcn);
+		dev_info(&socket->dev->dev, "Disabled ToPIC95 Cardbus write buffers.\n");
+	}
+
+	return 0;
+}
+
+#endif /* _LINUX_TOPIC_H */

linux-7.2.3/drivers/pcmcia/vg468.h

@@ -0,0 +1,106 @@
+/*
+ * vg468.h 1.11 1999/10/25 20:03:34
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License. 
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of the
+ * above.  If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_VG468_H
+#define _LINUX_VG468_H
+
+/* Special bit in I365_IDENT used for Vadem chip detection */
+#define I365_IDENT_VADEM	0x08
+
+/* Special definitions in I365_POWER */
+#define VG468_VPP2_MASK		0x0c
+#define VG468_VPP2_5V		0x04
+#define VG468_VPP2_12V		0x08
+
+/* Unique Vadem registers */
+#define VG469_VSENSE		0x1f	/* Card voltage sense */
+#define VG469_VSELECT		0x2f	/* Card voltage select */
+#define VG468_CTL		0x38	/* Control register */
+#define VG468_TIMER		0x39	/* Timer control */
+#define VG468_MISC		0x3a	/* Miscellaneous */
+#define VG468_GPIO_CFG		0x3b	/* GPIO configuration */
+#define VG469_EXT_MODE		0x3c	/* Extended mode register */
+#define VG468_SELECT		0x3d	/* Programmable chip select */
+#define VG468_SELECT_CFG	0x3e	/* Chip select configuration */
+#define VG468_ATA		0x3f	/* ATA control */
+
+/* Flags for VG469_VSENSE */
+#define VG469_VSENSE_A_VS1	0x01
+#define VG469_VSENSE_A_VS2	0x02
+#define VG469_VSENSE_B_VS1	0x04
+#define VG469_VSENSE_B_VS2	0x08
+
+/* Flags for VG469_VSELECT */
+#define VG469_VSEL_VCC		0x03
+#define VG469_VSEL_5V		0x00
+#define VG469_VSEL_3V		0x03
+#define VG469_VSEL_MAX		0x0c
+#define VG469_VSEL_EXT_STAT	0x10
+#define VG469_VSEL_EXT_BUS	0x20
+#define VG469_VSEL_MIXED	0x40
+#define VG469_VSEL_ISA		0x80
+
+/* Flags for VG468_CTL */
+#define VG468_CTL_SLOW		0x01	/* 600ns memory timing */
+#define VG468_CTL_ASYNC		0x02	/* Asynchronous bus clocking */
+#define VG468_CTL_TSSI		0x08	/* Tri-state some outputs */
+#define VG468_CTL_DELAY		0x10	/* Card detect debounce */
+#define VG468_CTL_INPACK	0x20	/* Obey INPACK signal? */
+#define VG468_CTL_POLARITY	0x40	/* VCCEN polarity */
+#define VG468_CTL_COMPAT	0x80	/* Compatibility stuff */
+
+#define VG469_CTL_WS_COMPAT	0x04	/* Wait state compatibility */
+#define VG469_CTL_STRETCH	0x10	/* LED stretch */
+
+/* Flags for VG468_TIMER */
+#define VG468_TIMER_ZEROPWR	0x10	/* Zero power control */
+#define VG468_TIMER_SIGEN	0x20	/* Power up */
+#define VG468_TIMER_STATUS	0x40	/* Activity timer status */
+#define VG468_TIMER_RES		0x80	/* Timer resolution */
+#define VG468_TIMER_MASK	0x0f	/* Activity timer timeout */
+
+/* Flags for VG468_MISC */
+#define VG468_MISC_GPIO		0x04	/* General-purpose IO */
+#define VG468_MISC_DMAWSB	0x08	/* DMA wait state control */
+#define VG469_MISC_LEDENA	0x10	/* LED enable */
+#define VG468_MISC_VADEMREV	0x40	/* Vadem revision control */
+#define VG468_MISC_UNLOCK	0x80	/* Unique register lock */
+
+/* Flags for VG469_EXT_MODE_A */
+#define VG469_MODE_VPPST	0x03	/* Vpp steering control */
+#define VG469_MODE_INT_SENSE	0x04	/* Internal voltage sense */
+#define VG469_MODE_CABLE	0x08
+#define VG469_MODE_COMPAT	0x10	/* i82365sl B or DF step */
+#define VG469_MODE_TEST		0x20
+#define VG469_MODE_RIO		0x40	/* Steer RIO to INTR? */
+
+/* Flags for VG469_EXT_MODE_B */
+#define VG469_MODE_B_3V		0x01	/* 3.3v for socket B */
+
+#endif /* _LINUX_VG468_H */

linux-7.2.3/drivers/pcmcia/xxs1500_ss.c

@@ -0,0 +1,326 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PCMCIA socket code for the MyCable XXS1500 system.
+ *
+ * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com>
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/resource.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <pcmcia/ss.h>
+#include <pcmcia/cistpl.h>
+
+#include <asm/irq.h>
+#include <asm/mach-au1x00/au1000.h>
+
+#define MEM_MAP_SIZE	0x400000
+#define IO_MAP_SIZE	0x1000
+
+
+/*
+ * 3.3V cards only; all interfacing is done via gpios:
+ *
+ * 0/1:  carddetect (00 = card present, xx = huh)
+ * 4:	 card irq
+ * 204:  reset (high-act)
+ * 205:  buffer enable (low-act)
+ * 208/209: card voltage key (00,01,10,11)
+ * 210:  battwarn
+ * 211:  batdead
+ * 214:  power (low-act)
+ */
+#define GPIO_CDA	0
+#define GPIO_CDB	1
+#define GPIO_CARDIRQ	4
+#define GPIO_RESET	204
+#define GPIO_OUTEN	205
+#define GPIO_VSL	208
+#define GPIO_VSH	209
+#define GPIO_BATTDEAD	210
+#define GPIO_BATTWARN	211
+#define GPIO_POWER	214
+
+struct xxs1500_pcmcia_sock {
+	struct pcmcia_socket	socket;
+	void		*virt_io;
+
+	phys_addr_t	phys_io;
+	phys_addr_t	phys_attr;
+	phys_addr_t	phys_mem;
+
+	/* previous flags for set_socket() */
+	unsigned int old_flags;
+};
+
+#define to_xxs_socket(x) container_of(x, struct xxs1500_pcmcia_sock, socket)
+
+static irqreturn_t cdirq(int irq, void *data)
+{
+	struct xxs1500_pcmcia_sock *sock = data;
+
+	pcmcia_parse_events(&sock->socket, SS_DETECT);
+
+	return IRQ_HANDLED;
+}
+
+static int xxs1500_pcmcia_configure(struct pcmcia_socket *skt,
+				    struct socket_state_t *state)
+{
+	struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt);
+	unsigned int changed;
+
+	/* power control */
+	switch (state->Vcc) {
+	case 0:
+		gpio_set_value(GPIO_POWER, 1);	/* power off */
+		break;
+	case 33:
+		gpio_set_value(GPIO_POWER, 0);	/* power on */
+		break;
+	case 50:
+	default:
+		return -EINVAL;
+	}
+
+	changed = state->flags ^ sock->old_flags;
+
+	if (changed & SS_RESET) {
+		if (state->flags & SS_RESET) {
+			gpio_set_value(GPIO_RESET, 1);	/* assert reset */
+			gpio_set_value(GPIO_OUTEN, 1);	/* buffers off */
+		} else {
+			gpio_set_value(GPIO_RESET, 0);	/* deassert reset */
+			gpio_set_value(GPIO_OUTEN, 0);	/* buffers on */
+			msleep(500);
+		}
+	}
+
+	sock->old_flags = state->flags;
+
+	return 0;
+}
+
+static int xxs1500_pcmcia_get_status(struct pcmcia_socket *skt,
+				     unsigned int *value)
+{
+	unsigned int status;
+	int i;
+
+	status = 0;
+
+	/* check carddetects: GPIO[0:1] must both be low */
+	if (!gpio_get_value(GPIO_CDA) && !gpio_get_value(GPIO_CDB))
+		status |= SS_DETECT;
+
+	/* determine card voltage: GPIO[208:209] binary value */
+	i = (!!gpio_get_value(GPIO_VSL)) | ((!!gpio_get_value(GPIO_VSH)) << 1);
+
+	switch (i) {
+	case 0:
+	case 1:
+	case 2:
+		status |= SS_3VCARD;	/* 3V card */
+		break;
+	case 3:				/* 5V card, unsupported */
+	default:
+		status |= SS_XVCARD;	/* treated as unsupported in core */
+	}
+
+	/* GPIO214: low active power switch */
+	status |= gpio_get_value(GPIO_POWER) ? 0 : SS_POWERON;
+
+	/* GPIO204: high-active reset line */
+	status |= gpio_get_value(GPIO_RESET) ? SS_RESET : SS_READY;
+
+	/* other stuff */
+	status |= gpio_get_value(GPIO_BATTDEAD) ? 0 : SS_BATDEAD;
+	status |= gpio_get_value(GPIO_BATTWARN) ? 0 : SS_BATWARN;
+
+	*value = status;
+
+	return 0;
+}
+
+static int xxs1500_pcmcia_sock_init(struct pcmcia_socket *skt)
+{
+	gpio_direction_input(GPIO_CDA);
+	gpio_direction_input(GPIO_CDB);
+	gpio_direction_input(GPIO_VSL);
+	gpio_direction_input(GPIO_VSH);
+	gpio_direction_input(GPIO_BATTDEAD);
+	gpio_direction_input(GPIO_BATTWARN);
+	gpio_direction_output(GPIO_RESET, 1);	/* assert reset */
+	gpio_direction_output(GPIO_OUTEN, 1);	/* disable buffers */
+	gpio_direction_output(GPIO_POWER, 1);	/* power off */
+
+	return 0;
+}
+
+static int xxs1500_pcmcia_sock_suspend(struct pcmcia_socket *skt)
+{
+	return 0;
+}
+
+static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt,
+				    struct pccard_io_map *map)
+{
+	struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt);
+
+	map->start = (u32)sock->virt_io;
+	map->stop = map->start + IO_MAP_SIZE;
+
+	return 0;
+}
+
+static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt,
+				     struct pccard_mem_map *map)
+{
+	struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt);
+
+	if (map->flags & MAP_ATTRIB)
+		map->static_start = sock->phys_attr + map->card_start;
+	else
+		map->static_start = sock->phys_mem + map->card_start;
+
+	return 0;
+}
+
+static struct pccard_operations xxs1500_pcmcia_operations = {
+	.init			= xxs1500_pcmcia_sock_init,
+	.suspend		= xxs1500_pcmcia_sock_suspend,
+	.get_status		= xxs1500_pcmcia_get_status,
+	.set_socket		= xxs1500_pcmcia_configure,
+	.set_io_map		= au1x00_pcmcia_set_io_map,
+	.set_mem_map		= au1x00_pcmcia_set_mem_map,
+};
+
+static int xxs1500_pcmcia_probe(struct platform_device *pdev)
+{
+	struct xxs1500_pcmcia_sock *sock;
+	struct resource *r;
+	int ret, irq;
+
+	sock = kzalloc_obj(struct xxs1500_pcmcia_sock);
+	if (!sock)
+		return -ENOMEM;
+
+	ret = -ENODEV;
+
+	/* 36bit PCMCIA Attribute area address */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr");
+	if (!r) {
+		dev_err(&pdev->dev, "missing 'pcmcia-attr' resource!\n");
+		goto out0;
+	}
+	sock->phys_attr = r->start;
+
+	/* 36bit PCMCIA Memory area address */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem");
+	if (!r) {
+		dev_err(&pdev->dev, "missing 'pcmcia-mem' resource!\n");
+		goto out0;
+	}
+	sock->phys_mem = r->start;
+
+	/* 36bit PCMCIA IO area address */
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io");
+	if (!r) {
+		dev_err(&pdev->dev, "missing 'pcmcia-io' resource!\n");
+		goto out0;
+	}
+	sock->phys_io = r->start;
+
+
+	/*
+	 * PCMCIA client drivers use the inb/outb macros to access
+	 * the IO registers.  Since mips_io_port_base is added
+	 * to the access address of the mips implementation of
+	 * inb/outb, we need to subtract it here because we want
+	 * to access the I/O or MEM address directly, without
+	 * going through this "mips_io_port_base" mechanism.
+	 */
+	sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) -
+				 mips_io_port_base);
+
+	if (!sock->virt_io) {
+		dev_err(&pdev->dev, "cannot remap IO area\n");
+		ret = -ENOMEM;
+		goto out0;
+	}
+
+	sock->socket.ops	= &xxs1500_pcmcia_operations;
+	sock->socket.owner	= THIS_MODULE;
+	sock->socket.pci_irq	= gpio_to_irq(GPIO_CARDIRQ);
+	sock->socket.features	= SS_CAP_STATIC_MAP | SS_CAP_PCCARD;
+	sock->socket.map_size	= MEM_MAP_SIZE;
+	sock->socket.io_offset	= (unsigned long)sock->virt_io;
+	sock->socket.dev.parent	= &pdev->dev;
+	sock->socket.resource_ops = &pccard_static_ops;
+
+	platform_set_drvdata(pdev, sock);
+
+	/* setup carddetect irq: use one of the 2 GPIOs as an
+	 * edge detector.
+	 */
+	irq = gpio_to_irq(GPIO_CDA);
+	irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
+	ret = request_irq(irq, cdirq, 0, "pcmcia_carddetect", sock);
+	if (ret) {
+		dev_err(&pdev->dev, "cannot setup cd irq\n");
+		goto out1;
+	}
+
+	ret = pcmcia_register_socket(&sock->socket);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register\n");
+		goto out2;
+	}
+
+	printk(KERN_INFO "MyCable XXS1500 PCMCIA socket services\n");
+
+	return 0;
+
+out2:
+	free_irq(gpio_to_irq(GPIO_CDA), sock);
+out1:
+	iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
+out0:
+	kfree(sock);
+	return ret;
+}
+
+static void xxs1500_pcmcia_remove(struct platform_device *pdev)
+{
+	struct xxs1500_pcmcia_sock *sock = platform_get_drvdata(pdev);
+
+	pcmcia_unregister_socket(&sock->socket);
+	free_irq(gpio_to_irq(GPIO_CDA), sock);
+	iounmap((void *)(sock->virt_io + (u32)mips_io_port_base));
+	kfree(sock);
+}
+
+static struct platform_driver xxs1500_pcmcia_socket_driver = {
+	.driver	= {
+		.name	= "xxs1500_pcmcia",
+	},
+	.probe		= xxs1500_pcmcia_probe,
+	.remove		= xxs1500_pcmcia_remove,
+};
+
+module_platform_driver(xxs1500_pcmcia_socket_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("PCMCIA Socket Services for MyCable XXS1500 systems");
+MODULE_AUTHOR("Manuel Lauss");

linux-7.2.3/drivers/pcmcia/yenta_socket.h

@@ -0,0 +1,136 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __YENTA_H
+#define __YENTA_H
+
+#include <asm/io.h>
+
+#define CB_SOCKET_EVENT		0x00
+#define    CB_CSTSEVENT		0x00000001	/* Card status event */
+#define    CB_CD1EVENT		0x00000002	/* Card detect 1 change event */
+#define    CB_CD2EVENT		0x00000004	/* Card detect 2 change event */
+#define    CB_PWREVENT		0x00000008	/* PWRCYCLE change event */
+
+#define CB_SOCKET_MASK		0x04
+#define    CB_CSTSMASK		0x00000001	/* Card status mask */
+#define    CB_CDMASK		0x00000006	/* Card detect 1&2 mask */
+#define    CB_PWRMASK		0x00000008	/* PWRCYCLE change mask */
+
+#define CB_SOCKET_STATE		0x08
+#define    CB_CARDSTS		0x00000001	/* CSTSCHG status */
+#define    CB_CDETECT1		0x00000002	/* Card detect status 1 */
+#define    CB_CDETECT2		0x00000004	/* Card detect status 2 */
+#define    CB_PWRCYCLE		0x00000008	/* Socket powered */
+#define    CB_16BITCARD		0x00000010	/* 16-bit card detected */
+#define    CB_CBCARD		0x00000020	/* CardBus card detected */
+#define    CB_IREQCINT		0x00000040	/* READY(xIRQ)/xCINT high */
+#define    CB_NOTACARD		0x00000080	/* Unrecognizable PC card detected */
+#define    CB_DATALOST		0x00000100	/* Potential data loss due to card removal */
+#define    CB_BADVCCREQ		0x00000200	/* Invalid Vcc request by host software */
+#define    CB_5VCARD		0x00000400	/* Card Vcc at 5.0 volts? */
+#define    CB_3VCARD		0x00000800	/* Card Vcc at 3.3 volts? */
+#define    CB_XVCARD		0x00001000	/* Card Vcc at X.X volts? */
+#define    CB_YVCARD		0x00002000	/* Card Vcc at Y.Y volts? */
+#define    CB_5VSOCKET		0x10000000	/* Socket Vcc at 5.0 volts? */
+#define    CB_3VSOCKET		0x20000000	/* Socket Vcc at 3.3 volts? */
+#define    CB_XVSOCKET		0x40000000	/* Socket Vcc at X.X volts? */
+#define    CB_YVSOCKET		0x80000000	/* Socket Vcc at Y.Y volts? */
+
+#define CB_SOCKET_FORCE		0x0C
+#define    CB_FCARDSTS		0x00000001	/* Force CSTSCHG */
+#define    CB_FCDETECT1		0x00000002	/* Force CD1EVENT */
+#define    CB_FCDETECT2		0x00000004	/* Force CD2EVENT */
+#define    CB_FPWRCYCLE		0x00000008	/* Force PWREVENT */
+#define    CB_F16BITCARD	0x00000010	/* Force 16-bit PCMCIA card */
+#define    CB_FCBCARD		0x00000020	/* Force CardBus line */
+#define    CB_FNOTACARD		0x00000080	/* Force NOTACARD */
+#define    CB_FDATALOST		0x00000100	/* Force data lost */
+#define    CB_FBADVCCREQ	0x00000200	/* Force bad Vcc request */
+#define    CB_F5VCARD		0x00000400	/* Force 5.0 volt card */
+#define    CB_F3VCARD		0x00000800	/* Force 3.3 volt card */
+#define    CB_FXVCARD		0x00001000	/* Force X.X volt card */
+#define    CB_FYVCARD		0x00002000	/* Force Y.Y volt card */
+#define    CB_CVSTEST		0x00004000	/* Card VS test */
+
+#define CB_SOCKET_CONTROL	0x10
+#define  CB_SC_VPP_MASK		0x00000007
+#define   CB_SC_VPP_OFF		0x00000000
+#define   CB_SC_VPP_12V		0x00000001
+#define   CB_SC_VPP_5V		0x00000002
+#define   CB_SC_VPP_3V		0x00000003
+#define   CB_SC_VPP_XV		0x00000004
+#define   CB_SC_VPP_YV		0x00000005
+#define  CB_SC_VCC_MASK		0x00000070
+#define   CB_SC_VCC_OFF		0x00000000
+#define   CB_SC_VCC_5V		0x00000020
+#define   CB_SC_VCC_3V		0x00000030
+#define   CB_SC_VCC_XV		0x00000040
+#define   CB_SC_VCC_YV		0x00000050
+#define  CB_SC_CCLK_STOP	0x00000080
+
+#define CB_SOCKET_POWER		0x20
+#define    CB_SKTACCES		0x02000000	/* A PC card access has occurred (clear on read) */
+#define    CB_SKTMODE		0x01000000	/* Clock frequency has changed (clear on read) */
+#define    CB_CLKCTRLEN		0x00010000	/* Clock control enabled (RW) */
+#define    CB_CLKCTRL		0x00000001	/* Stop(0) or slow(1) CB clock (RW) */
+
+/*
+ * Cardbus configuration space
+ */
+#define CB_BRIDGE_BASE(m)	(0x1c + 8*(m))
+#define CB_BRIDGE_LIMIT(m)	(0x20 + 8*(m))
+#define CB_BRIDGE_CONTROL	0x3e
+#define   CB_BRIDGE_CPERREN	0x00000001
+#define   CB_BRIDGE_CSERREN	0x00000002
+#define   CB_BRIDGE_ISAEN	0x00000004
+#define   CB_BRIDGE_VGAEN	0x00000008
+#define   CB_BRIDGE_MABTMODE	0x00000020
+#define   CB_BRIDGE_CRST	0x00000040
+#define   CB_BRIDGE_INTR	0x00000080
+#define   CB_BRIDGE_PREFETCH0	0x00000100
+#define   CB_BRIDGE_PREFETCH1	0x00000200
+#define   CB_BRIDGE_POSTEN	0x00000400
+#define CB_LEGACY_MODE_BASE	0x44
+
+/*
+ * ExCA area extensions in Yenta
+ */
+#define CB_MEM_PAGE(map)	(0x40 + (map))
+
+
+/* control how 16bit cards are powered */
+#define YENTA_16BIT_POWER_EXCA	0x00000001
+#define YENTA_16BIT_POWER_DF	0x00000002
+
+
+struct yenta_socket;
+
+struct cardbus_type {
+	int	(*override)(struct yenta_socket *);
+	void	(*save_state)(struct yenta_socket *);
+	void	(*restore_state)(struct yenta_socket *);
+	int	(*sock_init)(struct yenta_socket *);
+};
+
+struct yenta_socket {
+	struct pci_dev *dev;
+	int cb_irq, io_irq;
+	void __iomem *base;
+	struct timer_list poll_timer;
+
+	struct pcmcia_socket socket;
+	struct cardbus_type *type;
+
+	u32 flags;
+
+	/* for PCI interrupt probing */
+	unsigned int probe_status;
+
+	/* A few words of private data for special stuff of overrides... */
+	unsigned int private[8];
+
+	/* PCI saved state */
+	u32 saved_state[2];
+};
+
+
+#endif