Resguardo inicial

linux-7.2.3/drivers/phy/broadcom/Kconfig

@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Phy drivers for Broadcom platforms
+#
+menu "PHY drivers for Broadcom platforms"
+
+config PHY_BCM63XX_USBH
+	tristate "BCM63xx USBH PHY driver"
+	depends on BMIPS_GENERIC || COMPILE_TEST
+	select GENERIC_PHY
+	help
+	  Enable this to support the BCM63xx USBH PHY driver.
+	  If unsure, say N.
+
+config PHY_CYGNUS_PCIE
+	tristate "Broadcom Cygnus PCIe PHY driver"
+	depends on OF && (ARCH_BCM_CYGNUS || COMPILE_TEST)
+	select GENERIC_PHY
+	default ARCH_BCM_CYGNUS
+	help
+	  Enable this to support the Broadcom Cygnus PCIe PHY.
+	  If unsure, say N.
+
+config PHY_BCM_SR_USB
+	tristate "Broadcom Stingray USB PHY driver"
+	depends on OF && (ARCH_BCM_IPROC || COMPILE_TEST)
+	select GENERIC_PHY
+	default ARCH_BCM_IPROC
+	help
+	  Enable this to support the Broadcom Stingray USB PHY
+	  driver. It supports all versions of Superspeed and
+	  Highspeed PHYs.
+	  If unsure, say N.
+
+config BCM_KONA_USB2_PHY
+	tristate "Broadcom Kona USB2 PHY Driver"
+	depends on HAS_IOMEM
+	select GENERIC_PHY
+	help
+	  Enable this to support the Broadcom Kona USB 2.0 PHY.
+
+config PHY_BCM_NS_USB2
+	tristate "Broadcom Northstar USB 2.0 PHY Driver"
+	depends on ARCH_BCM_IPROC || COMPILE_TEST
+	depends on HAS_IOMEM && OF
+	select GENERIC_PHY
+	help
+	  Enable this to support Broadcom USB 2.0 PHY connected to the USB
+	  controller on Northstar family.
+
+config PHY_BCM_NS_USB3
+	tristate "Broadcom Northstar USB 3.0 PHY Driver"
+	depends on ARCH_BCM_IPROC || COMPILE_TEST
+	depends on HAS_IOMEM && OF
+	depends on PHYLIB
+	select GENERIC_PHY
+	help
+	  Enable this to support Broadcom USB 3.0 PHY connected to the USB
+	  controller on Northstar family.
+
+config PHY_NS2_PCIE
+	tristate "Broadcom Northstar2 PCIe PHY driver"
+	depends on (OF && MDIO_BUS_MUX_BCM_IPROC) || (COMPILE_TEST && PHYLIB)
+	select GENERIC_PHY
+	default ARCH_BCM_IPROC
+	help
+	  Enable this to support the Broadcom Northstar2 PCIe PHY.
+	  If unsure, say N.
+
+config PHY_NS2_USB_DRD
+	tristate "Broadcom Northstar2 USB DRD PHY support"
+	depends on OF && (ARCH_BCM_IPROC || COMPILE_TEST)
+	select GENERIC_PHY
+	select EXTCON
+	default ARCH_BCM_IPROC
+	help
+	  Enable this to support the Broadcom Northstar2 USB DRD PHY.
+	  This driver initializes the PHY in either HOST or DEVICE mode.
+	  The host or device configuration is read from device tree.
+
+	  If unsure, say N.
+
+config PHY_BRCM_SATA
+	tristate "Broadcom SATA PHY driver"
+	depends on ARCH_BRCMSTB || ARCH_BCM_IPROC || BMIPS_GENERIC || \
+		   ARCH_BCMBCA || COMPILE_TEST
+	depends on OF
+	select GENERIC_PHY
+	default ARCH_BCM_IPROC
+	help
+	  Enable this to support the Broadcom SATA PHY.
+	  If unsure, say N.
+
+config PHY_BRCM_USB
+	tristate "Broadcom STB USB PHY driver"
+	depends on ARCH_BCMBCA || ARCH_BRCMSTB || COMPILE_TEST
+	depends on OF
+	select GENERIC_PHY
+	select SOC_BRCMSTB if ARCH_BRCMSTB
+	default ARCH_BCMBCA || ARCH_BRCMSTB
+	help
+	  Enable this to support the Broadcom STB USB PHY.
+	  This driver is required by the USB XHCI, EHCI and OHCI
+	  drivers.
+	  If unsure, say N.
+
+config PHY_BCM_SR_PCIE
+	tristate "Broadcom Stingray PCIe PHY driver"
+	depends on OF && (ARCH_BCM_IPROC || COMPILE_TEST)
+	select GENERIC_PHY
+	select MFD_SYSCON
+	default ARCH_BCM_IPROC
+	help
+	  Enable this to support the Broadcom Stingray PCIe PHY
+	  If unsure, say N.
+
+endmenu

linux-7.2.3/drivers/phy/broadcom/Makefile

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PHY_BCM63XX_USBH)		+= phy-bcm63xx-usbh.o
+obj-$(CONFIG_PHY_CYGNUS_PCIE)		+= phy-bcm-cygnus-pcie.o
+obj-$(CONFIG_BCM_KONA_USB2_PHY)		+= phy-bcm-kona-usb2.o
+obj-$(CONFIG_PHY_BCM_NS_USB2)		+= phy-bcm-ns-usb2.o
+obj-$(CONFIG_PHY_BCM_NS_USB3)		+= phy-bcm-ns-usb3.o
+obj-$(CONFIG_PHY_NS2_PCIE)		+= phy-bcm-ns2-pcie.o
+obj-$(CONFIG_PHY_NS2_USB_DRD)		+= phy-bcm-ns2-usbdrd.o
+obj-$(CONFIG_PHY_BRCM_SATA)		+= phy-brcm-sata.o
+obj-$(CONFIG_PHY_BRCM_USB)		+= phy-brcm-usb-dvr.o
+
+phy-brcm-usb-dvr-objs := phy-brcm-usb.o phy-brcm-usb-init.o phy-brcm-usb-init-synopsys.o
+
+obj-$(CONFIG_PHY_BCM_SR_PCIE)		+= phy-bcm-sr-pcie.o
+obj-$(CONFIG_PHY_BCM_SR_USB)		+= phy-bcm-sr-usb.o

linux-7.2.3/drivers/phy/broadcom/phy-bcm-cygnus-pcie.c

@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015 Broadcom Corporation
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+#define PCIE_CFG_OFFSET         0x00
+#define PCIE1_PHY_IDDQ_SHIFT    10
+#define PCIE0_PHY_IDDQ_SHIFT    2
+
+enum cygnus_pcie_phy_id {
+	CYGNUS_PHY_PCIE0 = 0,
+	CYGNUS_PHY_PCIE1,
+	MAX_NUM_PHYS,
+};
+
+struct cygnus_pcie_phy_core;
+
+/**
+ * struct cygnus_pcie_phy - Cygnus PCIe PHY device
+ * @core: pointer to the Cygnus PCIe PHY core control
+ * @id: internal ID to identify the Cygnus PCIe PHY
+ * @phy: pointer to the kernel PHY device
+ */
+struct cygnus_pcie_phy {
+	struct cygnus_pcie_phy_core *core;
+	enum cygnus_pcie_phy_id id;
+	struct phy *phy;
+};
+
+/**
+ * struct cygnus_pcie_phy_core - Cygnus PCIe PHY core control
+ * @dev: pointer to device
+ * @base: base register
+ * @lock: mutex to protect access to individual PHYs
+ * @phys: pointer to Cygnus PHY device
+ */
+struct cygnus_pcie_phy_core {
+	struct device *dev;
+	void __iomem *base;
+	struct mutex lock;
+	struct cygnus_pcie_phy phys[MAX_NUM_PHYS];
+};
+
+static int cygnus_pcie_power_config(struct cygnus_pcie_phy *phy, bool enable)
+{
+	struct cygnus_pcie_phy_core *core = phy->core;
+	unsigned shift;
+	u32 val;
+
+	mutex_lock(&core->lock);
+
+	switch (phy->id) {
+	case CYGNUS_PHY_PCIE0:
+		shift = PCIE0_PHY_IDDQ_SHIFT;
+		break;
+
+	case CYGNUS_PHY_PCIE1:
+		shift = PCIE1_PHY_IDDQ_SHIFT;
+		break;
+
+	default:
+		mutex_unlock(&core->lock);
+		dev_err(core->dev, "PCIe PHY %d invalid\n", phy->id);
+		return -EINVAL;
+	}
+
+	if (enable) {
+		val = readl(core->base + PCIE_CFG_OFFSET);
+		val &= ~BIT(shift);
+		writel(val, core->base + PCIE_CFG_OFFSET);
+		/*
+		 * Wait 50 ms for the PCIe Serdes to stabilize after the analog
+		 * front end is brought up
+		 */
+		msleep(50);
+	} else {
+		val = readl(core->base + PCIE_CFG_OFFSET);
+		val |= BIT(shift);
+		writel(val, core->base + PCIE_CFG_OFFSET);
+	}
+
+	mutex_unlock(&core->lock);
+	dev_dbg(core->dev, "PCIe PHY %d %s\n", phy->id,
+		enable ? "enabled" : "disabled");
+	return 0;
+}
+
+static int cygnus_pcie_phy_power_on(struct phy *p)
+{
+	struct cygnus_pcie_phy *phy = phy_get_drvdata(p);
+
+	return cygnus_pcie_power_config(phy, true);
+}
+
+static int cygnus_pcie_phy_power_off(struct phy *p)
+{
+	struct cygnus_pcie_phy *phy = phy_get_drvdata(p);
+
+	return cygnus_pcie_power_config(phy, false);
+}
+
+static const struct phy_ops cygnus_pcie_phy_ops = {
+	.power_on = cygnus_pcie_phy_power_on,
+	.power_off = cygnus_pcie_phy_power_off,
+	.owner = THIS_MODULE,
+};
+
+static int cygnus_pcie_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct cygnus_pcie_phy_core *core;
+	struct phy_provider *provider;
+	unsigned cnt = 0;
+
+	if (of_get_child_count(node) == 0) {
+		dev_err(dev, "PHY no child node\n");
+		return -ENODEV;
+	}
+
+	core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
+	if (!core)
+		return -ENOMEM;
+
+	core->dev = dev;
+
+	core->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(core->base))
+		return PTR_ERR(core->base);
+
+	mutex_init(&core->lock);
+
+	for_each_available_child_of_node_scoped(node, child) {
+		unsigned int id;
+		struct cygnus_pcie_phy *p;
+
+		if (of_property_read_u32(child, "reg", &id)) {
+			dev_err(dev, "missing reg property for %pOFn\n",
+				child);
+			return -EINVAL;
+		}
+
+		if (id >= MAX_NUM_PHYS) {
+			dev_err(dev, "invalid PHY id: %u\n", id);
+			return -EINVAL;
+		}
+
+		if (core->phys[id].phy) {
+			dev_err(dev, "duplicated PHY id: %u\n", id);
+			return -EINVAL;
+		}
+
+		p = &core->phys[id];
+		p->phy = devm_phy_create(dev, child, &cygnus_pcie_phy_ops);
+		if (IS_ERR(p->phy)) {
+			dev_err(dev, "failed to create PHY\n");
+			return PTR_ERR(p->phy);
+		}
+
+		p->core = core;
+		p->id = id;
+		phy_set_drvdata(p->phy, p);
+		cnt++;
+	}
+
+	dev_set_drvdata(dev, core);
+
+	provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(provider)) {
+		dev_err(dev, "failed to register PHY provider\n");
+		return PTR_ERR(provider);
+	}
+
+	dev_dbg(dev, "registered %u PCIe PHY(s)\n", cnt);
+
+	return 0;
+}
+
+static const struct of_device_id cygnus_pcie_phy_match_table[] = {
+	{ .compatible = "brcm,cygnus-pcie-phy" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, cygnus_pcie_phy_match_table);
+
+static struct platform_driver cygnus_pcie_phy_driver = {
+	.driver = {
+		.name = "cygnus-pcie-phy",
+		.of_match_table = cygnus_pcie_phy_match_table,
+	},
+	.probe = cygnus_pcie_phy_probe,
+};
+module_platform_driver(cygnus_pcie_phy_driver);
+
+MODULE_AUTHOR("Ray Jui <rjui@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom Cygnus PCIe PHY driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-kona-usb2.c

@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * phy-bcm-kona-usb2.c - Broadcom Kona USB2 Phy Driver
+ *
+ * Copyright (C) 2013 Linaro Limited
+ * Matt Porter <mporter@linaro.org>
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+#define OTGCTL			(0)
+#define OTGCTL_OTGSTAT2		BIT(31)
+#define OTGCTL_OTGSTAT1		BIT(30)
+#define OTGCTL_PRST_N_SW	BIT(11)
+#define OTGCTL_HRESET_N		BIT(10)
+#define OTGCTL_UTMI_LINE_STATE1	BIT(9)
+#define OTGCTL_UTMI_LINE_STATE0	BIT(8)
+
+#define P1CTL			(8)
+#define P1CTL_SOFT_RESET	BIT(1)
+#define P1CTL_NON_DRIVING	BIT(0)
+
+struct bcm_kona_usb {
+	void __iomem *regs;
+};
+
+static void bcm_kona_usb_phy_power(struct bcm_kona_usb *phy, int on)
+{
+	u32 val;
+
+	val = readl(phy->regs + OTGCTL);
+	if (on) {
+		/* Configure and power PHY */
+		val &= ~(OTGCTL_OTGSTAT2 | OTGCTL_OTGSTAT1 |
+			 OTGCTL_UTMI_LINE_STATE1 | OTGCTL_UTMI_LINE_STATE0);
+		val |= OTGCTL_PRST_N_SW | OTGCTL_HRESET_N;
+	} else {
+		val &= ~(OTGCTL_PRST_N_SW | OTGCTL_HRESET_N);
+	}
+	writel(val, phy->regs + OTGCTL);
+}
+
+static int bcm_kona_usb_phy_init(struct phy *gphy)
+{
+	struct bcm_kona_usb *phy = phy_get_drvdata(gphy);
+	u32 val;
+
+	/* Soft reset PHY */
+	val = readl(phy->regs + P1CTL);
+	val &= ~P1CTL_NON_DRIVING;
+	val |= P1CTL_SOFT_RESET;
+	writel(val, phy->regs + P1CTL);
+	writel(val & ~P1CTL_SOFT_RESET, phy->regs + P1CTL);
+	/* Reset needs to be asserted for 2ms */
+	mdelay(2);
+	writel(val | P1CTL_SOFT_RESET, phy->regs + P1CTL);
+
+	return 0;
+}
+
+static int bcm_kona_usb_phy_power_on(struct phy *gphy)
+{
+	struct bcm_kona_usb *phy = phy_get_drvdata(gphy);
+
+	bcm_kona_usb_phy_power(phy, 1);
+
+	return 0;
+}
+
+static int bcm_kona_usb_phy_power_off(struct phy *gphy)
+{
+	struct bcm_kona_usb *phy = phy_get_drvdata(gphy);
+
+	bcm_kona_usb_phy_power(phy, 0);
+
+	return 0;
+}
+
+static const struct phy_ops ops = {
+	.init		= bcm_kona_usb_phy_init,
+	.power_on	= bcm_kona_usb_phy_power_on,
+	.power_off	= bcm_kona_usb_phy_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static int bcm_kona_usb2_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcm_kona_usb *phy;
+	struct phy *gphy;
+	struct phy_provider *phy_provider;
+
+	phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy)
+		return -ENOMEM;
+
+	phy->regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(phy->regs))
+		return PTR_ERR(phy->regs);
+
+	platform_set_drvdata(pdev, phy);
+
+	gphy = devm_phy_create(dev, NULL, &ops);
+	if (IS_ERR(gphy))
+		return PTR_ERR(gphy);
+
+	/* The Kona PHY supports an 8-bit wide UTMI interface */
+	phy_set_bus_width(gphy, 8);
+
+	phy_set_drvdata(gphy, phy);
+
+	phy_provider = devm_of_phy_provider_register(dev,
+			of_phy_simple_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct of_device_id bcm_kona_usb2_dt_ids[] = {
+	{ .compatible = "brcm,kona-usb2-phy" },
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, bcm_kona_usb2_dt_ids);
+
+static struct platform_driver bcm_kona_usb2_driver = {
+	.probe		= bcm_kona_usb2_probe,
+	.driver		= {
+		.name	= "bcm-kona-usb2",
+		.of_match_table = bcm_kona_usb2_dt_ids,
+	},
+};
+
+module_platform_driver(bcm_kona_usb2_driver);
+
+MODULE_ALIAS("platform:bcm-kona-usb2");
+MODULE_AUTHOR("Matt Porter <mporter@linaro.org>");
+MODULE_DESCRIPTION("BCM Kona USB 2.0 PHY driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-ns-usb2.c

@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Broadcom Northstar USB 2.0 PHY Driver
+ *
+ * Copyright (C) 2016 Rafał Miłecki <zajec5@gmail.com>
+ */
+
+#include <linux/bcma/bcma.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct bcm_ns_usb2 {
+	struct device *dev;
+	struct clk *ref_clk;
+	struct phy *phy;
+	struct regmap *clkset;
+	void __iomem *base;
+};
+
+static int bcm_ns_usb2_phy_init(struct phy *phy)
+{
+	struct bcm_ns_usb2 *usb2 = phy_get_drvdata(phy);
+	struct device *dev = usb2->dev;
+	u32 ref_clk_rate, usb2ctl, usb_pll_ndiv, usb_pll_pdiv;
+	int err = 0;
+
+	err = clk_prepare_enable(usb2->ref_clk);
+	if (err < 0) {
+		dev_err(dev, "Failed to prepare ref clock: %d\n", err);
+		goto err_out;
+	}
+
+	ref_clk_rate = clk_get_rate(usb2->ref_clk);
+	if (!ref_clk_rate) {
+		dev_err(dev, "Failed to get ref clock rate\n");
+		err = -EINVAL;
+		goto err_clk_off;
+	}
+
+	usb2ctl = readl(usb2->base);
+
+	if (usb2ctl & BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_PDIV_MASK) {
+		usb_pll_pdiv = usb2ctl;
+		usb_pll_pdiv &= BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_PDIV_MASK;
+		usb_pll_pdiv >>= BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_PDIV_SHIFT;
+	} else {
+		usb_pll_pdiv = 1 << 3;
+	}
+
+	/* Calculate ndiv based on a solid 1920 MHz that is for USB2 PHY */
+	usb_pll_ndiv = (1920000000 * usb_pll_pdiv) / ref_clk_rate;
+
+	/* Unlock DMU PLL settings with some magic value */
+	regmap_write(usb2->clkset, 0, 0x0000ea68);
+
+	/* Write USB 2.0 PLL control setting */
+	usb2ctl &= ~BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_NDIV_MASK;
+	usb2ctl |= usb_pll_ndiv << BCMA_DMU_CRU_USB2_CONTROL_USB_PLL_NDIV_SHIFT;
+
+	writel(usb2ctl, usb2->base);
+
+	/* Lock DMU PLL settings */
+	regmap_write(usb2->clkset, 0, 0x00000000);
+
+err_clk_off:
+	clk_disable_unprepare(usb2->ref_clk);
+err_out:
+	return err;
+}
+
+static const struct phy_ops ops = {
+	.init		= bcm_ns_usb2_phy_init,
+	.owner		= THIS_MODULE,
+};
+
+static int bcm_ns_usb2_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcm_ns_usb2 *usb2;
+	struct phy_provider *phy_provider;
+
+	usb2 = devm_kzalloc(&pdev->dev, sizeof(*usb2), GFP_KERNEL);
+	if (!usb2)
+		return -ENOMEM;
+	usb2->dev = dev;
+
+	usb2->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(usb2->base)) {
+		dev_err(dev, "Failed to map control reg\n");
+		return PTR_ERR(usb2->base);
+	}
+
+	usb2->clkset = syscon_regmap_lookup_by_phandle(dev->of_node,
+						       "brcm,syscon-clkset");
+	if (IS_ERR(usb2->clkset)) {
+		dev_err(dev, "Failed to lookup clkset regmap\n");
+		return PTR_ERR(usb2->clkset);
+	}
+
+	usb2->ref_clk = devm_clk_get(dev, "phy-ref-clk");
+	if (IS_ERR(usb2->ref_clk)) {
+		dev_err_probe(dev, PTR_ERR(usb2->ref_clk), "failed to get ref clk\n");
+		return PTR_ERR(usb2->ref_clk);
+	}
+
+	usb2->phy = devm_phy_create(dev, NULL, &ops);
+	if (IS_ERR(usb2->phy))
+		return PTR_ERR(usb2->phy);
+
+	phy_set_drvdata(usb2->phy, usb2);
+	platform_set_drvdata(pdev, usb2);
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static const struct of_device_id bcm_ns_usb2_id_table[] = {
+	{ .compatible = "brcm,ns-usb2-phy", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, bcm_ns_usb2_id_table);
+
+static struct platform_driver bcm_ns_usb2_driver = {
+	.probe		= bcm_ns_usb2_probe,
+	.driver = {
+		.name = "bcm_ns_usb2",
+		.of_match_table = bcm_ns_usb2_id_table,
+	},
+};
+module_platform_driver(bcm_ns_usb2_driver);
+
+MODULE_DESCRIPTION("Broadcom Northstar USB 2.0 PHY Driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-ns-usb3.c

@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Broadcom Northstar USB 3.0 PHY Driver
+ *
+ * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
+ * Copyright (C) 2016 Broadcom
+ *
+ * All magic values used for initialization (and related comments) were obtained
+ * from Broadcom's SDK:
+ * Copyright (c) Broadcom Corp, 2012
+ */
+
+#include <linux/bcma/bcma.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/iopoll.h>
+#include <linux/mdio.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/phy/phy.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+
+#define BCM_NS_USB3_PHY_BASE_ADDR_REG	0x1f
+#define BCM_NS_USB3_PHY_PLL30_BLOCK	0x8000
+#define BCM_NS_USB3_PHY_TX_PMD_BLOCK	0x8040
+#define BCM_NS_USB3_PHY_PIPE_BLOCK	0x8060
+
+/* Registers of PLL30 block */
+#define BCM_NS_USB3_PLL_CONTROL		0x01
+#define BCM_NS_USB3_PLLA_CONTROL0	0x0a
+#define BCM_NS_USB3_PLLA_CONTROL1	0x0b
+
+/* Registers of TX PMD block */
+#define BCM_NS_USB3_TX_PMD_CONTROL1	0x01
+
+/* Registers of PIPE block */
+#define BCM_NS_USB3_LFPS_CMP		0x02
+#define BCM_NS_USB3_LFPS_DEGLITCH	0x03
+
+enum bcm_ns_family {
+	BCM_NS_UNKNOWN,
+	BCM_NS_AX,
+	BCM_NS_BX,
+};
+
+struct bcm_ns_usb3 {
+	struct device *dev;
+	enum bcm_ns_family family;
+	void __iomem *dmp;
+	struct mdio_device *mdiodev;
+	struct phy *phy;
+};
+
+static const struct of_device_id bcm_ns_usb3_id_table[] = {
+	{
+		.compatible = "brcm,ns-ax-usb3-phy",
+		.data = (int *)BCM_NS_AX,
+	},
+	{
+		.compatible = "brcm,ns-bx-usb3-phy",
+		.data = (int *)BCM_NS_BX,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, bcm_ns_usb3_id_table);
+
+static int bcm_ns_usb3_mdio_phy_write(struct bcm_ns_usb3 *usb3, u16 reg,
+				      u16 value);
+
+static int bcm_ns_usb3_phy_init_ns_bx(struct bcm_ns_usb3 *usb3)
+{
+	int err;
+
+	/* USB3 PLL Block */
+	err = bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PHY_BASE_ADDR_REG,
+					 BCM_NS_USB3_PHY_PLL30_BLOCK);
+	if (err < 0)
+		return err;
+
+	/* Assert Ana_Pllseq start */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PLL_CONTROL, 0x1000);
+
+	/* Assert CML Divider ratio to 26 */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PLLA_CONTROL0, 0x6400);
+
+	/* Asserting PLL Reset */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PLLA_CONTROL1, 0xc000);
+
+	/* Deaaserting PLL Reset */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PLLA_CONTROL1, 0x8000);
+
+	/* Deasserting USB3 system reset */
+	writel(0, usb3->dmp + BCMA_RESET_CTL);
+
+	/* PLL frequency monitor enable */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PLL_CONTROL, 0x9000);
+
+	/* PIPE Block */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PHY_BASE_ADDR_REG,
+				   BCM_NS_USB3_PHY_PIPE_BLOCK);
+
+	/* CMPMAX & CMPMINTH setting */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_LFPS_CMP, 0xf30d);
+
+	/* DEGLITCH MIN & MAX setting */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_LFPS_DEGLITCH, 0x6302);
+
+	/* TXPMD block */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PHY_BASE_ADDR_REG,
+				   BCM_NS_USB3_PHY_TX_PMD_BLOCK);
+
+	/* Enabling SSC */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_TX_PMD_CONTROL1, 0x1003);
+
+	return 0;
+}
+
+static int bcm_ns_usb3_phy_init_ns_ax(struct bcm_ns_usb3 *usb3)
+{
+	int err;
+
+	/* PLL30 block */
+	err = bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PHY_BASE_ADDR_REG,
+					 BCM_NS_USB3_PHY_PLL30_BLOCK);
+	if (err < 0)
+		return err;
+
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PLLA_CONTROL0, 0x6400);
+
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PHY_BASE_ADDR_REG, 0x80e0);
+
+	bcm_ns_usb3_mdio_phy_write(usb3, 0x02, 0x009c);
+
+	/* Enable SSC */
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_PHY_BASE_ADDR_REG,
+				   BCM_NS_USB3_PHY_TX_PMD_BLOCK);
+
+	bcm_ns_usb3_mdio_phy_write(usb3, 0x02, 0x21d3);
+
+	bcm_ns_usb3_mdio_phy_write(usb3, BCM_NS_USB3_TX_PMD_CONTROL1, 0x1003);
+
+	/* Deasserting USB3 system reset */
+	writel(0, usb3->dmp + BCMA_RESET_CTL);
+
+	return 0;
+}
+
+static int bcm_ns_usb3_phy_init(struct phy *phy)
+{
+	struct bcm_ns_usb3 *usb3 = phy_get_drvdata(phy);
+	int err;
+
+	/* Perform USB3 system soft reset */
+	writel(BCMA_RESET_CTL_RESET, usb3->dmp + BCMA_RESET_CTL);
+
+	switch (usb3->family) {
+	case BCM_NS_AX:
+		err = bcm_ns_usb3_phy_init_ns_ax(usb3);
+		break;
+	case BCM_NS_BX:
+		err = bcm_ns_usb3_phy_init_ns_bx(usb3);
+		break;
+	default:
+		WARN_ON(1);
+		err = -ENOTSUPP;
+	}
+
+	return err;
+}
+
+static const struct phy_ops ops = {
+	.init		= bcm_ns_usb3_phy_init,
+	.owner		= THIS_MODULE,
+};
+
+/**************************************************
+ * MDIO driver code
+ **************************************************/
+
+static int bcm_ns_usb3_mdio_phy_write(struct bcm_ns_usb3 *usb3, u16 reg,
+				      u16 value)
+{
+	struct mdio_device *mdiodev = usb3->mdiodev;
+
+	return mdiodev_write(mdiodev, reg, value);
+}
+
+static int bcm_ns_usb3_mdio_probe(struct mdio_device *mdiodev)
+{
+	struct device *dev = &mdiodev->dev;
+	struct phy_provider *phy_provider;
+	struct device_node *syscon_np;
+	struct bcm_ns_usb3 *usb3;
+	struct resource res;
+	int err;
+
+	usb3 = devm_kzalloc(dev, sizeof(*usb3), GFP_KERNEL);
+	if (!usb3)
+		return -ENOMEM;
+
+	usb3->dev = dev;
+	usb3->mdiodev = mdiodev;
+
+	usb3->family = (unsigned long)device_get_match_data(dev);
+
+	syscon_np = of_parse_phandle(dev->of_node, "usb3-dmp-syscon", 0);
+	err = of_address_to_resource(syscon_np, 0, &res);
+	of_node_put(syscon_np);
+	if (err)
+		return err;
+
+	usb3->dmp = devm_ioremap_resource(dev, &res);
+	if (IS_ERR(usb3->dmp))
+		return PTR_ERR(usb3->dmp);
+
+	usb3->phy = devm_phy_create(dev, NULL, &ops);
+	if (IS_ERR(usb3->phy)) {
+		dev_err(dev, "Failed to create PHY\n");
+		return PTR_ERR(usb3->phy);
+	}
+
+	phy_set_drvdata(usb3->phy, usb3);
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static struct mdio_driver bcm_ns_usb3_mdio_driver = {
+	.mdiodrv = {
+		.driver = {
+			.name = "bcm_ns_mdio_usb3",
+			.of_match_table = bcm_ns_usb3_id_table,
+		},
+	},
+	.probe = bcm_ns_usb3_mdio_probe,
+};
+
+mdio_module_driver(bcm_ns_usb3_mdio_driver);
+
+MODULE_DESCRIPTION("Broadcom Northstar USB 3.0 PHY Driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-ns2-pcie.c

@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2016 Broadcom
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of_mdio.h>
+#include <linux/mdio.h>
+#include <linux/phy.h>
+#include <linux/phy/phy.h>
+
+#define BLK_ADDR_REG_OFFSET	0x1f
+#define PLL_AFE1_100MHZ_BLK	0x2100
+#define PLL_CLK_AMP_OFFSET	0x03
+#define PLL_CLK_AMP_2P05V	0x2b18
+
+static int ns2_pci_phy_init(struct phy *p)
+{
+	struct mdio_device *mdiodev = phy_get_drvdata(p);
+	int rc;
+
+	/* select the AFE 100MHz block page */
+	rc = mdiodev_write(mdiodev, BLK_ADDR_REG_OFFSET, PLL_AFE1_100MHZ_BLK);
+	if (rc)
+		goto err;
+
+	/* set the 100 MHz reference clock amplitude to 2.05 v */
+	rc = mdiodev_write(mdiodev, PLL_CLK_AMP_OFFSET, PLL_CLK_AMP_2P05V);
+	if (rc)
+		goto err;
+
+	return 0;
+
+err:
+	dev_err(&mdiodev->dev, "Error %d writing to phy\n", rc);
+	return rc;
+}
+
+static const struct phy_ops ns2_pci_phy_ops = {
+	.init = ns2_pci_phy_init,
+	.owner = THIS_MODULE,
+};
+
+static int ns2_pci_phy_probe(struct mdio_device *mdiodev)
+{
+	struct device *dev = &mdiodev->dev;
+	struct phy_provider *provider;
+	struct phy *phy;
+
+	phy = devm_phy_create(dev, dev->of_node, &ns2_pci_phy_ops);
+	if (IS_ERR(phy)) {
+		dev_err(dev, "failed to create Phy\n");
+		return PTR_ERR(phy);
+	}
+
+	phy_set_drvdata(phy, mdiodev);
+
+	provider = devm_of_phy_provider_register(&phy->dev,
+						 of_phy_simple_xlate);
+	if (IS_ERR(provider)) {
+		dev_err(dev, "failed to register Phy provider\n");
+		return PTR_ERR(provider);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id ns2_pci_phy_of_match[] = {
+	{ .compatible = "brcm,ns2-pcie-phy", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ns2_pci_phy_of_match);
+
+static struct mdio_driver ns2_pci_phy_driver = {
+	.mdiodrv = {
+		.driver = {
+			.name = "phy-bcm-ns2-pci",
+			.of_match_table = ns2_pci_phy_of_match,
+		},
+	},
+	.probe = ns2_pci_phy_probe,
+};
+mdio_module_driver(ns2_pci_phy_driver);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("Broadcom Northstar2 PCI Phy driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:phy-bcm-ns2-pci");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c

@@ -0,0 +1,416 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2017 Broadcom
+
+#include <linux/delay.h>
+#include <linux/extcon-provider.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/irq.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#define ICFG_DRD_AFE		0x0
+#define ICFG_MISC_STAT		0x18
+#define ICFG_DRD_P0CTL		0x1C
+#define ICFG_STRAP_CTRL		0x20
+#define ICFG_FSM_CTRL		0x24
+
+#define ICFG_DEV_BIT		BIT(2)
+#define IDM_RST_BIT		BIT(0)
+#define AFE_CORERDY_VDDC	BIT(18)
+#define PHY_PLL_RESETB		BIT(15)
+#define PHY_RESETB		BIT(14)
+#define PHY_PLL_LOCK		BIT(0)
+
+#define DRD_DEV_MODE		BIT(20)
+#define OHCI_OVRCUR_POL		BIT(11)
+#define ICFG_OFF_MODE		BIT(6)
+#define PLL_LOCK_RETRY		1000
+
+#define EVT_DEVICE		0
+#define EVT_HOST		1
+
+#define DRD_HOST_MODE		(BIT(2) | BIT(3))
+#define DRD_DEVICE_MODE		(BIT(4) | BIT(5))
+#define DRD_HOST_VAL		0x803
+#define DRD_DEV_VAL		0x807
+#define GPIO_DELAY		20
+
+struct ns2_phy_data;
+struct ns2_phy_driver {
+	void __iomem *icfgdrd_regs;
+	void __iomem *idmdrd_rst_ctrl;
+	void __iomem *crmu_usb2_ctrl;
+	void __iomem *usb2h_strap_reg;
+	struct ns2_phy_data *data;
+	struct extcon_dev *edev;
+	struct gpio_desc *vbus_gpiod;
+	struct gpio_desc *id_gpiod;
+	int id_irq;
+	int vbus_irq;
+	unsigned long debounce_jiffies;
+	struct delayed_work wq_extcon;
+};
+
+struct ns2_phy_data {
+	struct ns2_phy_driver *driver;
+	struct phy *phy;
+	int new_state;
+};
+
+static const unsigned int usb_extcon_cable[] = {
+	EXTCON_USB,
+	EXTCON_USB_HOST,
+	EXTCON_NONE,
+};
+
+static inline int pll_lock_stat(u32 usb_reg, int reg_mask,
+				struct ns2_phy_driver *driver)
+{
+	u32 val;
+
+	return readl_poll_timeout_atomic(driver->icfgdrd_regs + usb_reg,
+					 val, (val & reg_mask), 1,
+					 PLL_LOCK_RETRY);
+}
+
+static int ns2_drd_phy_init(struct phy *phy)
+{
+	struct ns2_phy_data *data = phy_get_drvdata(phy);
+	struct ns2_phy_driver *driver = data->driver;
+	u32 val;
+
+	val = readl(driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+	if (data->new_state == EVT_HOST) {
+		val &= ~DRD_DEVICE_MODE;
+		val |= DRD_HOST_MODE;
+	} else {
+		val &= ~DRD_HOST_MODE;
+		val |= DRD_DEVICE_MODE;
+	}
+	writel(val, driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+	return 0;
+}
+
+static int ns2_drd_phy_poweroff(struct phy *phy)
+{
+	struct ns2_phy_data *data = phy_get_drvdata(phy);
+	struct ns2_phy_driver *driver = data->driver;
+	u32 val;
+
+	val = readl(driver->crmu_usb2_ctrl);
+	val &= ~AFE_CORERDY_VDDC;
+	writel(val, driver->crmu_usb2_ctrl);
+
+	val = readl(driver->crmu_usb2_ctrl);
+	val &= ~DRD_DEV_MODE;
+	writel(val, driver->crmu_usb2_ctrl);
+
+	/* Disable Host and Device Mode */
+	val = readl(driver->icfgdrd_regs + ICFG_FSM_CTRL);
+	val &= ~(DRD_HOST_MODE | DRD_DEVICE_MODE | ICFG_OFF_MODE);
+	writel(val, driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+	return 0;
+}
+
+static int ns2_drd_phy_poweron(struct phy *phy)
+{
+	struct ns2_phy_data *data = phy_get_drvdata(phy);
+	struct ns2_phy_driver *driver = data->driver;
+	u32 extcon_event = data->new_state;
+	int ret;
+	u32 val;
+
+	if (extcon_event == EVT_DEVICE) {
+		writel(DRD_DEV_VAL, driver->icfgdrd_regs + ICFG_DRD_P0CTL);
+
+		val = readl(driver->idmdrd_rst_ctrl);
+		val &= ~IDM_RST_BIT;
+		writel(val, driver->idmdrd_rst_ctrl);
+
+		val = readl(driver->crmu_usb2_ctrl);
+		val |= (AFE_CORERDY_VDDC | DRD_DEV_MODE);
+		writel(val, driver->crmu_usb2_ctrl);
+
+		/* Bring PHY and PHY_PLL out of Reset */
+		val = readl(driver->crmu_usb2_ctrl);
+		val |= (PHY_PLL_RESETB | PHY_RESETB);
+		writel(val, driver->crmu_usb2_ctrl);
+
+		ret = pll_lock_stat(ICFG_MISC_STAT, PHY_PLL_LOCK, driver);
+		if (ret < 0) {
+			dev_err(&phy->dev, "Phy PLL lock failed\n");
+			return ret;
+		}
+	} else {
+		writel(DRD_HOST_VAL, driver->icfgdrd_regs + ICFG_DRD_P0CTL);
+
+		val = readl(driver->crmu_usb2_ctrl);
+		val |= AFE_CORERDY_VDDC;
+		writel(val, driver->crmu_usb2_ctrl);
+
+		ret = pll_lock_stat(ICFG_MISC_STAT, PHY_PLL_LOCK, driver);
+		if (ret < 0) {
+			dev_err(&phy->dev, "Phy PLL lock failed\n");
+			return ret;
+		}
+
+		val = readl(driver->idmdrd_rst_ctrl);
+		val &= ~IDM_RST_BIT;
+		writel(val, driver->idmdrd_rst_ctrl);
+
+		/* port over current Polarity */
+		val = readl(driver->usb2h_strap_reg);
+		val |= OHCI_OVRCUR_POL;
+		writel(val, driver->usb2h_strap_reg);
+	}
+
+	return 0;
+}
+
+static void connect_change(struct ns2_phy_driver *driver)
+{
+	u32 extcon_event;
+	u32 val;
+
+	extcon_event = driver->data->new_state;
+	val = readl(driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+	switch (extcon_event) {
+	case EVT_DEVICE:
+		val &= ~(DRD_HOST_MODE | DRD_DEVICE_MODE);
+		writel(val, driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+		val = (val & ~DRD_HOST_MODE) | DRD_DEVICE_MODE;
+		writel(val, driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+		val = readl(driver->icfgdrd_regs + ICFG_DRD_P0CTL);
+		val |= ICFG_DEV_BIT;
+		writel(val, driver->icfgdrd_regs + ICFG_DRD_P0CTL);
+		break;
+
+	case EVT_HOST:
+		val &= ~(DRD_HOST_MODE | DRD_DEVICE_MODE);
+		writel(val, driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+		val = (val & ~DRD_DEVICE_MODE) | DRD_HOST_MODE;
+		writel(val, driver->icfgdrd_regs + ICFG_FSM_CTRL);
+
+		val = readl(driver->usb2h_strap_reg);
+		val |= OHCI_OVRCUR_POL;
+		writel(val, driver->usb2h_strap_reg);
+
+		val = readl(driver->icfgdrd_regs + ICFG_DRD_P0CTL);
+		val &= ~ICFG_DEV_BIT;
+		writel(val, driver->icfgdrd_regs + ICFG_DRD_P0CTL);
+		break;
+
+	default:
+		pr_err("Invalid extcon event\n");
+		break;
+	}
+}
+
+static void extcon_work(struct work_struct *work)
+{
+	struct ns2_phy_driver *driver;
+	int vbus;
+	int id;
+
+	driver  = container_of(to_delayed_work(work),
+			       struct ns2_phy_driver, wq_extcon);
+
+	id = gpiod_get_value_cansleep(driver->id_gpiod);
+	vbus = gpiod_get_value_cansleep(driver->vbus_gpiod);
+
+	if (!id && vbus) { /* Host connected */
+		extcon_set_state_sync(driver->edev, EXTCON_USB_HOST, true);
+		pr_debug("Host cable connected\n");
+		driver->data->new_state = EVT_HOST;
+		connect_change(driver);
+	} else if (id && !vbus) { /* Disconnected */
+		extcon_set_state_sync(driver->edev, EXTCON_USB_HOST, false);
+		extcon_set_state_sync(driver->edev, EXTCON_USB, false);
+		pr_debug("Cable disconnected\n");
+	} else if (id && vbus) { /* Device connected */
+		extcon_set_state_sync(driver->edev, EXTCON_USB, true);
+		pr_debug("Device cable connected\n");
+		driver->data->new_state = EVT_DEVICE;
+		connect_change(driver);
+	}
+}
+
+static irqreturn_t gpio_irq_handler(int irq, void *dev_id)
+{
+	struct ns2_phy_driver *driver = dev_id;
+
+	queue_delayed_work(system_power_efficient_wq, &driver->wq_extcon,
+			   driver->debounce_jiffies);
+
+	return IRQ_HANDLED;
+}
+
+static const struct phy_ops ops = {
+	.init		= ns2_drd_phy_init,
+	.power_on	= ns2_drd_phy_poweron,
+	.power_off	= ns2_drd_phy_poweroff,
+	.owner		= THIS_MODULE,
+};
+
+static const struct of_device_id ns2_drd_phy_dt_ids[] = {
+	{ .compatible = "brcm,ns2-drd-phy", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ns2_drd_phy_dt_ids);
+
+static int ns2_drd_phy_probe(struct platform_device *pdev)
+{
+	struct phy_provider *phy_provider;
+	struct device *dev = &pdev->dev;
+	struct ns2_phy_driver *driver;
+	struct ns2_phy_data *data;
+	int ret;
+	u32 val;
+
+	driver = devm_kzalloc(dev, sizeof(struct ns2_phy_driver),
+			      GFP_KERNEL);
+	if (!driver)
+		return -ENOMEM;
+
+	driver->data = devm_kzalloc(dev, sizeof(struct ns2_phy_data),
+				  GFP_KERNEL);
+	if (!driver->data)
+		return -ENOMEM;
+
+	driver->icfgdrd_regs = devm_platform_ioremap_resource_byname(pdev, "icfg");
+	if (IS_ERR(driver->icfgdrd_regs))
+		return PTR_ERR(driver->icfgdrd_regs);
+
+	driver->idmdrd_rst_ctrl = devm_platform_ioremap_resource_byname(pdev, "rst-ctrl");
+	if (IS_ERR(driver->idmdrd_rst_ctrl))
+		return PTR_ERR(driver->idmdrd_rst_ctrl);
+
+	driver->crmu_usb2_ctrl = devm_platform_ioremap_resource_byname(pdev, "crmu-ctrl");
+	if (IS_ERR(driver->crmu_usb2_ctrl))
+		return PTR_ERR(driver->crmu_usb2_ctrl);
+
+	driver->usb2h_strap_reg = devm_platform_ioremap_resource_byname(pdev, "usb2-strap");
+	if (IS_ERR(driver->usb2h_strap_reg))
+		return PTR_ERR(driver->usb2h_strap_reg);
+
+	 /* create extcon */
+	driver->id_gpiod = devm_gpiod_get(&pdev->dev, "id", GPIOD_IN);
+	if (IS_ERR(driver->id_gpiod)) {
+		dev_err(dev, "failed to get ID GPIO\n");
+		return PTR_ERR(driver->id_gpiod);
+	}
+	driver->vbus_gpiod = devm_gpiod_get(&pdev->dev, "vbus", GPIOD_IN);
+	if (IS_ERR(driver->vbus_gpiod)) {
+		dev_err(dev, "failed to get VBUS GPIO\n");
+		return PTR_ERR(driver->vbus_gpiod);
+	}
+
+	driver->edev = devm_extcon_dev_allocate(dev, usb_extcon_cable);
+	if (IS_ERR(driver->edev)) {
+		dev_err(dev, "failed to allocate extcon device\n");
+		return -ENOMEM;
+	}
+
+	ret = devm_extcon_dev_register(dev, driver->edev);
+	if (ret < 0) {
+		dev_err(dev, "failed to register extcon device\n");
+		return ret;
+	}
+
+	ret = gpiod_set_debounce(driver->id_gpiod, GPIO_DELAY * 1000);
+	if (ret < 0)
+		driver->debounce_jiffies = msecs_to_jiffies(GPIO_DELAY);
+
+	INIT_DELAYED_WORK(&driver->wq_extcon, extcon_work);
+
+	driver->id_irq = gpiod_to_irq(driver->id_gpiod);
+	if (driver->id_irq < 0) {
+		dev_err(dev, "failed to get ID IRQ\n");
+		return driver->id_irq;
+	}
+
+	driver->vbus_irq = gpiod_to_irq(driver->vbus_gpiod);
+	if (driver->vbus_irq < 0) {
+		dev_err(dev, "failed to get ID IRQ\n");
+		return driver->vbus_irq;
+	}
+
+	ret = devm_request_irq(dev, driver->id_irq, gpio_irq_handler,
+			       IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+			       "usb_id", driver);
+	if (ret < 0) {
+		dev_err(dev, "failed to request handler for ID IRQ\n");
+		return ret;
+	}
+
+	ret = devm_request_irq(dev, driver->vbus_irq, gpio_irq_handler,
+			       IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+			       "usb_vbus", driver);
+	if (ret < 0) {
+		dev_err(dev, "failed to request handler for VBUS IRQ\n");
+		return ret;
+	}
+
+	dev_set_drvdata(dev, driver);
+
+	/* Shutdown all ports. They can be powered up as required */
+	val = readl(driver->crmu_usb2_ctrl);
+	val &= ~(AFE_CORERDY_VDDC | PHY_RESETB);
+	writel(val, driver->crmu_usb2_ctrl);
+
+	data = driver->data;
+	data->phy = devm_phy_create(dev, dev->of_node, &ops);
+	if (IS_ERR(data->phy)) {
+		dev_err(dev, "Failed to create usb drd phy\n");
+		return PTR_ERR(data->phy);
+	}
+
+	data->driver = driver;
+	phy_set_drvdata(data->phy, data);
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider)) {
+		dev_err(dev, "Failed to register as phy provider\n");
+		return PTR_ERR(phy_provider);
+	}
+
+	platform_set_drvdata(pdev, driver);
+
+	queue_delayed_work(system_power_efficient_wq, &driver->wq_extcon,
+			   driver->debounce_jiffies);
+
+	return 0;
+}
+
+static struct platform_driver ns2_drd_phy_driver = {
+	.probe = ns2_drd_phy_probe,
+	.driver = {
+		.name = "bcm-ns2-usbphy",
+		.of_match_table = of_match_ptr(ns2_drd_phy_dt_ids),
+	},
+};
+module_platform_driver(ns2_drd_phy_driver);
+
+MODULE_ALIAS("platform:bcm-ns2-drd-phy");
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("Broadcom NS2 USB2 PHY driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-sr-pcie.c

@@ -0,0 +1,300 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016-2018 Broadcom
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+/* we have up to 8 PAXB based RC. The 9th one is always PAXC */
+#define SR_NR_PCIE_PHYS               9
+#define SR_PAXC_PHY_IDX               (SR_NR_PCIE_PHYS - 1)
+
+#define PCIE_PIPEMUX_CFG_OFFSET       0x10c
+#define PCIE_PIPEMUX_SELECT_STRAP     0xf
+
+#define CDRU_STRAP_DATA_LSW_OFFSET    0x5c
+#define PCIE_PIPEMUX_SHIFT            19
+#define PCIE_PIPEMUX_MASK             0xf
+
+#define MHB_MEM_PW_PAXC_OFFSET        0x1c0
+#define MHB_PWR_ARR_POWERON           0x8
+#define MHB_PWR_ARR_POWEROK           0x4
+#define MHB_PWR_POWERON               0x2
+#define MHB_PWR_POWEROK               0x1
+#define MHB_PWR_STATUS_MASK           (MHB_PWR_ARR_POWERON | \
+				       MHB_PWR_ARR_POWEROK | \
+				       MHB_PWR_POWERON | \
+				       MHB_PWR_POWEROK)
+
+struct sr_pcie_phy_core;
+
+/**
+ * struct sr_pcie_phy - Stingray PCIe PHY
+ *
+ * @core: pointer to the Stingray PCIe PHY core control
+ * @index: PHY index
+ * @phy: pointer to the kernel PHY device
+ */
+struct sr_pcie_phy {
+	struct sr_pcie_phy_core *core;
+	unsigned int index;
+	struct phy *phy;
+};
+
+/**
+ * struct sr_pcie_phy_core - Stingray PCIe PHY core control
+ *
+ * @dev: pointer to device
+ * @base: base register of PCIe SS
+ * @cdru: regmap to the CDRU device
+ * @mhb: regmap to the MHB device
+ * @pipemux: pipemuex strap
+ * @phys: array of PCIe PHYs
+ */
+struct sr_pcie_phy_core {
+	struct device *dev;
+	void __iomem *base;
+	struct regmap *cdru;
+	struct regmap *mhb;
+	u32 pipemux;
+	struct sr_pcie_phy phys[SR_NR_PCIE_PHYS];
+};
+
+/*
+ * PCIe PIPEMUX lookup table
+ *
+ * Each array index represents a PIPEMUX strap setting
+ * The array element represents a bitmap where a set bit means the PCIe
+ * core and associated serdes has been enabled as RC and is available for use
+ */
+static const u8 pipemux_table[] = {
+	/* PIPEMUX = 0, EP 1x16 */
+	0x00,
+	/* PIPEMUX = 1, EP 1x8 + RC 1x8, core 7 */
+	0x80,
+	/* PIPEMUX = 2, EP 4x4 */
+	0x00,
+	/* PIPEMUX = 3, RC 2x8, cores 0, 7 */
+	0x81,
+	/* PIPEMUX = 4, RC 4x4, cores 0, 1, 6, 7 */
+	0xc3,
+	/* PIPEMUX = 5, RC 8x2, all 8 cores */
+	0xff,
+	/* PIPEMUX = 6, RC 3x4 + 2x2, cores 0, 2, 3, 6, 7 */
+	0xcd,
+	/* PIPEMUX = 7, RC 1x4 + 6x2, cores 0, 2, 3, 4, 5, 6, 7 */
+	0xfd,
+	/* PIPEMUX = 8, EP 1x8 + RC 4x2, cores 4, 5, 6, 7 */
+	0xf0,
+	/* PIPEMUX = 9, EP 1x8 + RC 2x4, cores 6, 7 */
+	0xc0,
+	/* PIPEMUX = 10, EP 2x4 + RC 2x4, cores 1, 6 */
+	0x42,
+	/* PIPEMUX = 11, EP 2x4 + RC 4x2, cores 2, 3, 4, 5 */
+	0x3c,
+	/* PIPEMUX = 12, EP 1x4 + RC 6x2, cores 2, 3, 4, 5, 6, 7 */
+	0xfc,
+	/* PIPEMUX = 13, RC 2x4 + RC 1x4 + 2x2, cores 2, 3, 6 */
+	0x4c,
+};
+
+/*
+ * Return true if the strap setting is valid
+ */
+static bool pipemux_strap_is_valid(u32 pipemux)
+{
+	return !!(pipemux < ARRAY_SIZE(pipemux_table));
+}
+
+/*
+ * Read the PCIe PIPEMUX from strap
+ */
+static u32 pipemux_strap_read(struct sr_pcie_phy_core *core)
+{
+	u32 pipemux;
+
+	/*
+	 * Read PIPEMUX configuration register to determine the pipemux setting
+	 *
+	 * In the case when the value indicates using HW strap, fall back to
+	 * use HW strap
+	 */
+	pipemux = readl(core->base + PCIE_PIPEMUX_CFG_OFFSET);
+	pipemux &= PCIE_PIPEMUX_MASK;
+	if (pipemux == PCIE_PIPEMUX_SELECT_STRAP) {
+		regmap_read(core->cdru, CDRU_STRAP_DATA_LSW_OFFSET, &pipemux);
+		pipemux >>= PCIE_PIPEMUX_SHIFT;
+		pipemux &= PCIE_PIPEMUX_MASK;
+	}
+
+	return pipemux;
+}
+
+/*
+ * Given a PIPEMUX strap and PCIe core index, this function returns true if the
+ * PCIe core needs to be enabled
+ */
+static bool pcie_core_is_for_rc(struct sr_pcie_phy *phy)
+{
+	struct sr_pcie_phy_core *core = phy->core;
+	unsigned int core_idx = phy->index;
+
+	return !!((pipemux_table[core->pipemux] >> core_idx) & 0x1);
+}
+
+static int sr_pcie_phy_init(struct phy *p)
+{
+	struct sr_pcie_phy *phy = phy_get_drvdata(p);
+
+	/*
+	 * Check whether this PHY is for root complex or not. If yes, return
+	 * zero so the host driver can proceed to enumeration. If not, return
+	 * an error and that will force the host driver to bail out
+	 */
+	if (pcie_core_is_for_rc(phy))
+		return 0;
+
+	return -ENODEV;
+}
+
+static int sr_paxc_phy_init(struct phy *p)
+{
+	struct sr_pcie_phy *phy = phy_get_drvdata(p);
+	struct sr_pcie_phy_core *core = phy->core;
+	unsigned int core_idx = phy->index;
+	u32 val;
+
+	if (core_idx != SR_PAXC_PHY_IDX)
+		return -EINVAL;
+
+	regmap_read(core->mhb, MHB_MEM_PW_PAXC_OFFSET, &val);
+	if ((val & MHB_PWR_STATUS_MASK) != MHB_PWR_STATUS_MASK) {
+		dev_err(core->dev, "PAXC is not powered up\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static const struct phy_ops sr_pcie_phy_ops = {
+	.init = sr_pcie_phy_init,
+	.owner = THIS_MODULE,
+};
+
+static const struct phy_ops sr_paxc_phy_ops = {
+	.init = sr_paxc_phy_init,
+	.owner = THIS_MODULE,
+};
+
+static struct phy *sr_pcie_phy_xlate(struct device *dev,
+				     const struct of_phandle_args *args)
+{
+	struct sr_pcie_phy_core *core;
+	int phy_idx;
+
+	core = dev_get_drvdata(dev);
+	if (!core)
+		return ERR_PTR(-EINVAL);
+
+	phy_idx = args->args[0];
+
+	if (WARN_ON(phy_idx >= SR_NR_PCIE_PHYS))
+		return ERR_PTR(-ENODEV);
+
+	return core->phys[phy_idx].phy;
+}
+
+static int sr_pcie_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct sr_pcie_phy_core *core;
+	struct phy_provider *provider;
+	unsigned int phy_idx = 0;
+
+	core = devm_kzalloc(dev, sizeof(*core), GFP_KERNEL);
+	if (!core)
+		return -ENOMEM;
+
+	core->dev = dev;
+	core->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(core->base))
+		return PTR_ERR(core->base);
+
+	core->cdru = syscon_regmap_lookup_by_phandle(node, "brcm,sr-cdru");
+	if (IS_ERR(core->cdru)) {
+		dev_err(core->dev, "unable to find CDRU device\n");
+		return PTR_ERR(core->cdru);
+	}
+
+	core->mhb = syscon_regmap_lookup_by_phandle(node, "brcm,sr-mhb");
+	if (IS_ERR(core->mhb)) {
+		dev_err(core->dev, "unable to find MHB device\n");
+		return PTR_ERR(core->mhb);
+	}
+
+	/* read the PCIe PIPEMUX strap setting */
+	core->pipemux = pipemux_strap_read(core);
+	if (!pipemux_strap_is_valid(core->pipemux)) {
+		dev_err(core->dev, "invalid PCIe PIPEMUX strap %u\n",
+			core->pipemux);
+		return -EIO;
+	}
+
+	for (phy_idx = 0; phy_idx < SR_NR_PCIE_PHYS; phy_idx++) {
+		struct sr_pcie_phy *p = &core->phys[phy_idx];
+		const struct phy_ops *ops;
+
+		if (phy_idx == SR_PAXC_PHY_IDX)
+			ops = &sr_paxc_phy_ops;
+		else
+			ops = &sr_pcie_phy_ops;
+
+		p->phy = devm_phy_create(dev, NULL, ops);
+		if (IS_ERR(p->phy)) {
+			dev_err(dev, "failed to create PCIe PHY\n");
+			return PTR_ERR(p->phy);
+		}
+
+		p->core = core;
+		p->index = phy_idx;
+		phy_set_drvdata(p->phy, p);
+	}
+
+	dev_set_drvdata(dev, core);
+
+	provider = devm_of_phy_provider_register(dev, sr_pcie_phy_xlate);
+	if (IS_ERR(provider)) {
+		dev_err(dev, "failed to register PHY provider\n");
+		return PTR_ERR(provider);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id sr_pcie_phy_match_table[] = {
+	{ .compatible = "brcm,sr-pcie-phy" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sr_pcie_phy_match_table);
+
+static struct platform_driver sr_pcie_phy_driver = {
+	.driver = {
+		.name		= "sr-pcie-phy",
+		.of_match_table	= sr_pcie_phy_match_table,
+	},
+	.probe	= sr_pcie_phy_probe,
+};
+module_platform_driver(sr_pcie_phy_driver);
+
+MODULE_AUTHOR("Ray Jui <ray.jui@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom Stingray PCIe PHY driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm-sr-usb.c

@@ -0,0 +1,338 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016-2018 Broadcom
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+enum bcm_usb_phy_version {
+	BCM_SR_USB_COMBO_PHY,
+	BCM_SR_USB_HS_PHY,
+};
+
+enum bcm_usb_phy_reg {
+	PLL_CTRL,
+	PHY_CTRL,
+	PHY_PLL_CTRL,
+};
+
+/* USB PHY registers */
+
+static const u8 bcm_usb_combo_phy_ss[] = {
+	[PLL_CTRL]		= 0x18,
+	[PHY_CTRL]		= 0x14,
+};
+
+static const u8 bcm_usb_combo_phy_hs[] = {
+	[PLL_CTRL]	= 0x0c,
+	[PHY_CTRL]	= 0x10,
+};
+
+static const u8 bcm_usb_hs_phy[] = {
+	[PLL_CTRL]	= 0x8,
+	[PHY_CTRL]	= 0xc,
+};
+
+enum pll_ctrl_bits {
+	PLL_RESETB,
+	SSPLL_SUSPEND_EN,
+	PLL_SEQ_START,
+	PLL_LOCK,
+};
+
+static const u8 u3pll_ctrl[] = {
+	[PLL_RESETB]		= 0,
+	[SSPLL_SUSPEND_EN]	= 1,
+	[PLL_SEQ_START]		= 2,
+	[PLL_LOCK]		= 3,
+};
+
+#define HSPLL_PDIV_MASK		0xF
+#define HSPLL_PDIV_VAL		0x1
+
+static const u8 u2pll_ctrl[] = {
+	[PLL_RESETB]	= 5,
+	[PLL_LOCK]	= 6,
+};
+
+enum bcm_usb_phy_ctrl_bits {
+	CORERDY,
+	PHY_RESETB,
+	PHY_PCTL,
+};
+
+#define PHY_PCTL_MASK	0xffff
+#define SSPHY_PCTL_VAL	0x0006
+
+static const u8 u3phy_ctrl[] = {
+	[PHY_RESETB]	= 1,
+	[PHY_PCTL]	= 2,
+};
+
+static const u8 u2phy_ctrl[] = {
+	[CORERDY]		= 0,
+	[PHY_RESETB]		= 5,
+	[PHY_PCTL]		= 6,
+};
+
+struct bcm_usb_phy_cfg {
+	uint32_t type;
+	uint32_t version;
+	void __iomem *regs;
+	struct phy *phy;
+	const u8 *offset;
+};
+
+#define PLL_LOCK_RETRY_COUNT	1000
+
+enum bcm_usb_phy_type {
+	USB_HS_PHY,
+	USB_SS_PHY,
+};
+
+#define NUM_BCM_SR_USB_COMBO_PHYS	2
+
+static inline void bcm_usb_reg32_clrbits(void __iomem *addr, uint32_t clear)
+{
+	writel(readl(addr) & ~clear, addr);
+}
+
+static inline void bcm_usb_reg32_setbits(void __iomem *addr, uint32_t set)
+{
+	writel(readl(addr) | set, addr);
+}
+
+static int bcm_usb_pll_lock_check(void __iomem *addr, u32 bit)
+{
+	u32 data;
+	int ret;
+
+	ret = readl_poll_timeout_atomic(addr, data, (data & bit), 1,
+					PLL_LOCK_RETRY_COUNT);
+	if (ret)
+		pr_err("%s: FAIL\n", __func__);
+
+	return ret;
+}
+
+static int bcm_usb_ss_phy_init(struct bcm_usb_phy_cfg *phy_cfg)
+{
+	int ret = 0;
+	void __iomem *regs = phy_cfg->regs;
+	const u8 *offset;
+	u32 rd_data;
+
+	offset = phy_cfg->offset;
+
+	/* Set pctl with mode and soft reset */
+	rd_data = readl(regs + offset[PHY_CTRL]);
+	rd_data &= ~(PHY_PCTL_MASK << u3phy_ctrl[PHY_PCTL]);
+	rd_data |= (SSPHY_PCTL_VAL << u3phy_ctrl[PHY_PCTL]);
+	writel(rd_data, regs + offset[PHY_CTRL]);
+
+	bcm_usb_reg32_clrbits(regs + offset[PLL_CTRL],
+			      BIT(u3pll_ctrl[SSPLL_SUSPEND_EN]));
+	bcm_usb_reg32_setbits(regs + offset[PLL_CTRL],
+			      BIT(u3pll_ctrl[PLL_SEQ_START]));
+	bcm_usb_reg32_setbits(regs + offset[PLL_CTRL],
+			      BIT(u3pll_ctrl[PLL_RESETB]));
+
+	/* Maximum timeout for PLL reset done */
+	msleep(30);
+
+	ret = bcm_usb_pll_lock_check(regs + offset[PLL_CTRL],
+				     BIT(u3pll_ctrl[PLL_LOCK]));
+
+	return ret;
+}
+
+static int bcm_usb_hs_phy_init(struct bcm_usb_phy_cfg *phy_cfg)
+{
+	int ret = 0;
+	void __iomem *regs = phy_cfg->regs;
+	const u8 *offset;
+
+	offset = phy_cfg->offset;
+
+	bcm_usb_reg32_clrbits(regs + offset[PLL_CTRL],
+			      BIT(u2pll_ctrl[PLL_RESETB]));
+	bcm_usb_reg32_setbits(regs + offset[PLL_CTRL],
+			      BIT(u2pll_ctrl[PLL_RESETB]));
+
+	ret = bcm_usb_pll_lock_check(regs + offset[PLL_CTRL],
+				     BIT(u2pll_ctrl[PLL_LOCK]));
+
+	return ret;
+}
+
+static int bcm_usb_phy_reset(struct phy *phy)
+{
+	struct bcm_usb_phy_cfg *phy_cfg = phy_get_drvdata(phy);
+	void __iomem *regs = phy_cfg->regs;
+	const u8 *offset;
+
+	offset = phy_cfg->offset;
+
+	if (phy_cfg->type == USB_HS_PHY) {
+		bcm_usb_reg32_clrbits(regs + offset[PHY_CTRL],
+				      BIT(u2phy_ctrl[CORERDY]));
+		bcm_usb_reg32_setbits(regs + offset[PHY_CTRL],
+				      BIT(u2phy_ctrl[CORERDY]));
+	}
+
+	return 0;
+}
+
+static int bcm_usb_phy_init(struct phy *phy)
+{
+	struct bcm_usb_phy_cfg *phy_cfg = phy_get_drvdata(phy);
+	int ret = -EINVAL;
+
+	if (phy_cfg->type == USB_SS_PHY)
+		ret = bcm_usb_ss_phy_init(phy_cfg);
+	else if (phy_cfg->type == USB_HS_PHY)
+		ret = bcm_usb_hs_phy_init(phy_cfg);
+
+	return ret;
+}
+
+static const struct phy_ops sr_phy_ops = {
+	.init		= bcm_usb_phy_init,
+	.reset		= bcm_usb_phy_reset,
+	.owner		= THIS_MODULE,
+};
+
+static struct phy *bcm_usb_phy_xlate(struct device *dev,
+				     const struct of_phandle_args *args)
+{
+	struct bcm_usb_phy_cfg *phy_cfg;
+	int phy_idx;
+
+	phy_cfg = dev_get_drvdata(dev);
+	if (!phy_cfg)
+		return ERR_PTR(-EINVAL);
+
+	if (phy_cfg->version == BCM_SR_USB_COMBO_PHY) {
+		phy_idx = args->args[0];
+
+		if (WARN_ON(phy_idx > 1))
+			return ERR_PTR(-ENODEV);
+
+		return phy_cfg[phy_idx].phy;
+	} else
+		return phy_cfg->phy;
+}
+
+static int bcm_usb_phy_create(struct device *dev, struct device_node *node,
+			      void __iomem *regs, uint32_t version)
+{
+	struct bcm_usb_phy_cfg *phy_cfg;
+	int idx;
+
+	if (version == BCM_SR_USB_COMBO_PHY) {
+		phy_cfg = devm_kzalloc(dev, NUM_BCM_SR_USB_COMBO_PHYS *
+				       sizeof(struct bcm_usb_phy_cfg),
+				       GFP_KERNEL);
+		if (!phy_cfg)
+			return -ENOMEM;
+
+		for (idx = 0; idx < NUM_BCM_SR_USB_COMBO_PHYS; idx++) {
+			phy_cfg[idx].regs = regs;
+			phy_cfg[idx].version = version;
+			if (idx == 0) {
+				phy_cfg[idx].offset = bcm_usb_combo_phy_hs;
+				phy_cfg[idx].type = USB_HS_PHY;
+			} else {
+				phy_cfg[idx].offset = bcm_usb_combo_phy_ss;
+				phy_cfg[idx].type = USB_SS_PHY;
+			}
+			phy_cfg[idx].phy = devm_phy_create(dev, node,
+							   &sr_phy_ops);
+			if (IS_ERR(phy_cfg[idx].phy))
+				return PTR_ERR(phy_cfg[idx].phy);
+
+			phy_set_drvdata(phy_cfg[idx].phy, &phy_cfg[idx]);
+		}
+	} else if (version == BCM_SR_USB_HS_PHY) {
+		phy_cfg = devm_kzalloc(dev, sizeof(struct bcm_usb_phy_cfg),
+				       GFP_KERNEL);
+		if (!phy_cfg)
+			return -ENOMEM;
+
+		phy_cfg->regs = regs;
+		phy_cfg->version = version;
+		phy_cfg->offset = bcm_usb_hs_phy;
+		phy_cfg->type = USB_HS_PHY;
+		phy_cfg->phy = devm_phy_create(dev, node, &sr_phy_ops);
+		if (IS_ERR(phy_cfg->phy))
+			return PTR_ERR(phy_cfg->phy);
+
+		phy_set_drvdata(phy_cfg->phy, phy_cfg);
+	} else
+		return -ENODEV;
+
+	dev_set_drvdata(dev, phy_cfg);
+
+	return 0;
+}
+
+static const struct of_device_id bcm_usb_phy_of_match[] = {
+	{
+		.compatible = "brcm,sr-usb-combo-phy",
+		.data = (void *)BCM_SR_USB_COMBO_PHY,
+	},
+	{
+		.compatible = "brcm,sr-usb-hs-phy",
+		.data = (void *)BCM_SR_USB_HS_PHY,
+	},
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, bcm_usb_phy_of_match);
+
+static int bcm_usb_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *dn = dev->of_node;
+	const struct of_device_id *of_id;
+	void __iomem *regs;
+	int ret;
+	enum bcm_usb_phy_version version;
+	struct phy_provider *phy_provider;
+
+	regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	of_id = of_match_node(bcm_usb_phy_of_match, dn);
+	if (of_id)
+		version = (uintptr_t)of_id->data;
+	else
+		return -ENODEV;
+
+	ret = bcm_usb_phy_create(dev, dn, regs, version);
+	if (ret)
+		return ret;
+
+	phy_provider = devm_of_phy_provider_register(dev, bcm_usb_phy_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static struct platform_driver bcm_usb_phy_driver = {
+	.driver = {
+		.name = "phy-bcm-sr-usb",
+		.of_match_table = bcm_usb_phy_of_match,
+	},
+	.probe = bcm_usb_phy_probe,
+};
+module_platform_driver(bcm_usb_phy_driver);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("Broadcom stingray USB Phy driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/phy/broadcom/phy-bcm63xx-usbh.c

@@ -0,0 +1,458 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * BCM6328 USBH PHY Controller Driver
+ *
+ * Copyright (C) 2020 Álvaro Fernández Rojas <noltari@gmail.com>
+ * Copyright (C) 2015 Simon Arlott
+ *
+ * Derived from bcm963xx_4.12L.06B_consumer/kernel/linux/arch/mips/bcm963xx/setup.c:
+ * Copyright (C) 2002 Broadcom Corporation
+ *
+ * Derived from OpenWrt patches:
+ * Copyright (C) 2013 Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright (C) 2013 Florian Fainelli <f.fainelli@gmail.com>
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+/* USBH control register offsets */
+enum usbh_regs {
+	USBH_BRT_CONTROL1 = 0,
+	USBH_BRT_CONTROL2,
+	USBH_BRT_STATUS1,
+	USBH_BRT_STATUS2,
+	USBH_UTMI_CONTROL1,
+#define   USBH_UC1_DEV_MODE_SEL		BIT(0)
+	USBH_TEST_PORT_CONTROL,
+	USBH_PLL_CONTROL1,
+#define   USBH_PLLC_REFCLKSEL_SHIFT	0
+#define   USBH_PLLC_REFCLKSEL_MASK	(0x3 << USBH_PLLC_REFCLKSEL_SHIFT)
+#define   USBH_PLLC_CLKSEL_SHIFT	2
+#define   USBH_PLLC_CLKSEL_MASK		(0x3 << USBH_PLLC_CLKSEL_MASK)
+#define   USBH_PLLC_XTAL_PWRDWNB	BIT(4)
+#define   USBH_PLLC_PLL_PWRDWNB		BIT(5)
+#define   USBH_PLLC_PLL_CALEN		BIT(6)
+#define   USBH_PLLC_PHYPLL_BYP		BIT(7)
+#define   USBH_PLLC_PLL_RESET		BIT(8)
+#define   USBH_PLLC_PLL_IDDQ_PWRDN	BIT(9)
+#define   USBH_PLLC_PLL_PWRDN_DELAY	BIT(10)
+#define   USBH_6318_PLLC_PLL_SUSPEND_EN	BIT(27)
+#define   USBH_6318_PLLC_PHYPLL_BYP	BIT(29)
+#define   USBH_6318_PLLC_PLL_RESET	BIT(30)
+#define   USBH_6318_PLLC_PLL_IDDQ_PWRDN	BIT(31)
+	USBH_SWAP_CONTROL,
+#define   USBH_SC_OHCI_DATA_SWAP	BIT(0)
+#define   USBH_SC_OHCI_ENDIAN_SWAP	BIT(1)
+#define   USBH_SC_OHCI_LOGICAL_ADDR_EN	BIT(2)
+#define   USBH_SC_EHCI_DATA_SWAP	BIT(3)
+#define   USBH_SC_EHCI_ENDIAN_SWAP	BIT(4)
+#define   USBH_SC_EHCI_LOGICAL_ADDR_EN	BIT(5)
+#define   USBH_SC_USB_DEVICE_SEL	BIT(6)
+	USBH_GENERIC_CONTROL,
+#define   USBH_GC_PLL_SUSPEND_EN	BIT(1)
+	USBH_FRAME_ADJUST_VALUE,
+	USBH_SETUP,
+#define   USBH_S_IOC			BIT(4)
+#define   USBH_S_IPP			BIT(5)
+	USBH_MDIO,
+	USBH_MDIO32,
+	USBH_USB_SIM_CONTROL,
+#define   USBH_USC_LADDR_SEL		BIT(5)
+
+	__USBH_ENUM_SIZE
+};
+
+struct bcm63xx_usbh_phy_variant {
+	/* Registers */
+	long regs[__USBH_ENUM_SIZE];
+
+	/* PLLC bits to set/clear for power on */
+	u32 power_pllc_clr;
+	u32 power_pllc_set;
+
+	/* Setup bits to set/clear for power on */
+	u32 setup_clr;
+	u32 setup_set;
+
+	/* Swap Control bits to set */
+	u32 swapctl_dev_set;
+
+	/* Test Port Control value to set if non-zero */
+	u32 tpc_val;
+
+	/* USB Sim Control bits to set */
+	u32 usc_set;
+
+	/* UTMI Control 1 bits to set */
+	u32 utmictl1_dev_set;
+};
+
+struct bcm63xx_usbh_phy {
+	void __iomem *base;
+	struct clk *usbh_clk;
+	struct clk *usb_ref_clk;
+	struct reset_control *reset;
+	const struct bcm63xx_usbh_phy_variant *variant;
+	bool device_mode;
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6318 = {
+	.regs = {
+		[USBH_BRT_CONTROL1] = -1,
+		[USBH_BRT_CONTROL2] = -1,
+		[USBH_BRT_STATUS1] = -1,
+		[USBH_BRT_STATUS2] = -1,
+		[USBH_UTMI_CONTROL1] = 0x2c,
+		[USBH_TEST_PORT_CONTROL] = 0x1c,
+		[USBH_PLL_CONTROL1] = 0x04,
+		[USBH_SWAP_CONTROL] = 0x0c,
+		[USBH_GENERIC_CONTROL] = -1,
+		[USBH_FRAME_ADJUST_VALUE] = 0x08,
+		[USBH_SETUP] = 0x00,
+		[USBH_MDIO] = 0x14,
+		[USBH_MDIO32] = 0x18,
+		[USBH_USB_SIM_CONTROL] = 0x20,
+	},
+	.power_pllc_clr = USBH_6318_PLLC_PLL_IDDQ_PWRDN,
+	.power_pllc_set = USBH_6318_PLLC_PLL_SUSPEND_EN,
+	.setup_set = USBH_S_IOC,
+	.swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+	.usc_set = USBH_USC_LADDR_SEL,
+	.utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6328 = {
+	.regs = {
+		[USBH_BRT_CONTROL1] = 0x00,
+		[USBH_BRT_CONTROL2] = 0x04,
+		[USBH_BRT_STATUS1] = 0x08,
+		[USBH_BRT_STATUS2] = 0x0c,
+		[USBH_UTMI_CONTROL1] = 0x10,
+		[USBH_TEST_PORT_CONTROL] = 0x14,
+		[USBH_PLL_CONTROL1] = 0x18,
+		[USBH_SWAP_CONTROL] = 0x1c,
+		[USBH_GENERIC_CONTROL] = 0x20,
+		[USBH_FRAME_ADJUST_VALUE] = 0x24,
+		[USBH_SETUP] = 0x28,
+		[USBH_MDIO] = 0x2c,
+		[USBH_MDIO32] = 0x30,
+		[USBH_USB_SIM_CONTROL] = 0x34,
+	},
+	.setup_set = USBH_S_IOC,
+	.swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+	.utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6358 = {
+	.regs = {
+		[USBH_BRT_CONTROL1] = -1,
+		[USBH_BRT_CONTROL2] = -1,
+		[USBH_BRT_STATUS1] = -1,
+		[USBH_BRT_STATUS2] = -1,
+		[USBH_UTMI_CONTROL1] = -1,
+		[USBH_TEST_PORT_CONTROL] = 0x24,
+		[USBH_PLL_CONTROL1] = -1,
+		[USBH_SWAP_CONTROL] = 0x00,
+		[USBH_GENERIC_CONTROL] = -1,
+		[USBH_FRAME_ADJUST_VALUE] = -1,
+		[USBH_SETUP] = -1,
+		[USBH_MDIO] = -1,
+		[USBH_MDIO32] = -1,
+		[USBH_USB_SIM_CONTROL] = -1,
+	},
+	/*
+	 * The magic value comes for the original vendor BSP
+	 * and is needed for USB to work. Datasheet does not
+	 * help, so the magic value is used as-is.
+	 */
+	.tpc_val = 0x1c0020,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm6368 = {
+	.regs = {
+		[USBH_BRT_CONTROL1] = 0x00,
+		[USBH_BRT_CONTROL2] = 0x04,
+		[USBH_BRT_STATUS1] = 0x08,
+		[USBH_BRT_STATUS2] = 0x0c,
+		[USBH_UTMI_CONTROL1] = 0x10,
+		[USBH_TEST_PORT_CONTROL] = 0x14,
+		[USBH_PLL_CONTROL1] = 0x18,
+		[USBH_SWAP_CONTROL] = 0x1c,
+		[USBH_GENERIC_CONTROL] = -1,
+		[USBH_FRAME_ADJUST_VALUE] = 0x24,
+		[USBH_SETUP] = 0x28,
+		[USBH_MDIO] = 0x2c,
+		[USBH_MDIO32] = 0x30,
+		[USBH_USB_SIM_CONTROL] = 0x34,
+	},
+	.power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY,
+	.setup_set = USBH_S_IOC,
+	.swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+	.utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static const struct bcm63xx_usbh_phy_variant usbh_bcm63268 = {
+	.regs = {
+		[USBH_BRT_CONTROL1] = 0x00,
+		[USBH_BRT_CONTROL2] = 0x04,
+		[USBH_BRT_STATUS1] = 0x08,
+		[USBH_BRT_STATUS2] = 0x0c,
+		[USBH_UTMI_CONTROL1] = 0x10,
+		[USBH_TEST_PORT_CONTROL] = 0x14,
+		[USBH_PLL_CONTROL1] = 0x18,
+		[USBH_SWAP_CONTROL] = 0x1c,
+		[USBH_GENERIC_CONTROL] = 0x20,
+		[USBH_FRAME_ADJUST_VALUE] = 0x24,
+		[USBH_SETUP] = 0x28,
+		[USBH_MDIO] = 0x2c,
+		[USBH_MDIO32] = 0x30,
+		[USBH_USB_SIM_CONTROL] = 0x34,
+	},
+	.power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY,
+	.setup_clr = USBH_S_IPP,
+	.setup_set = USBH_S_IOC,
+	.swapctl_dev_set = USBH_SC_USB_DEVICE_SEL,
+	.utmictl1_dev_set = USBH_UC1_DEV_MODE_SEL,
+};
+
+static inline bool usbh_has_reg(struct bcm63xx_usbh_phy *usbh, int reg)
+{
+	return (usbh->variant->regs[reg] >= 0);
+}
+
+static inline u32 usbh_readl(struct bcm63xx_usbh_phy *usbh, int reg)
+{
+	return __raw_readl(usbh->base + usbh->variant->regs[reg]);
+}
+
+static inline void usbh_writel(struct bcm63xx_usbh_phy *usbh, int reg,
+			       u32 value)
+{
+	__raw_writel(value, usbh->base + usbh->variant->regs[reg]);
+}
+
+static int bcm63xx_usbh_phy_init(struct phy *phy)
+{
+	struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+	int ret;
+
+	ret = clk_prepare_enable(usbh->usbh_clk);
+	if (ret) {
+		dev_err(&phy->dev, "unable to enable usbh clock: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(usbh->usb_ref_clk);
+	if (ret) {
+		dev_err(&phy->dev, "unable to enable usb_ref clock: %d\n", ret);
+		clk_disable_unprepare(usbh->usbh_clk);
+		return ret;
+	}
+
+	ret = reset_control_reset(usbh->reset);
+	if (ret) {
+		dev_err(&phy->dev, "unable to reset device: %d\n", ret);
+		clk_disable_unprepare(usbh->usb_ref_clk);
+		clk_disable_unprepare(usbh->usbh_clk);
+		return ret;
+	}
+
+	/* Configure to work in native CPU endian */
+	if (usbh_has_reg(usbh, USBH_SWAP_CONTROL)) {
+		u32 val = usbh_readl(usbh, USBH_SWAP_CONTROL);
+
+		val |= USBH_SC_EHCI_DATA_SWAP;
+		val &= ~USBH_SC_EHCI_ENDIAN_SWAP;
+
+		val |= USBH_SC_OHCI_DATA_SWAP;
+		val &= ~USBH_SC_OHCI_ENDIAN_SWAP;
+
+		if (usbh->device_mode && usbh->variant->swapctl_dev_set)
+			val |= usbh->variant->swapctl_dev_set;
+
+		usbh_writel(usbh, USBH_SWAP_CONTROL, val);
+	}
+
+	if (usbh_has_reg(usbh, USBH_SETUP)) {
+		u32 val = usbh_readl(usbh, USBH_SETUP);
+
+		val |= usbh->variant->setup_set;
+		val &= ~usbh->variant->setup_clr;
+
+		usbh_writel(usbh, USBH_SETUP, val);
+	}
+
+	if (usbh_has_reg(usbh, USBH_USB_SIM_CONTROL)) {
+		u32 val = usbh_readl(usbh, USBH_USB_SIM_CONTROL);
+
+		val |= usbh->variant->usc_set;
+
+		usbh_writel(usbh, USBH_USB_SIM_CONTROL, val);
+	}
+
+	if (usbh->variant->tpc_val &&
+	    usbh_has_reg(usbh, USBH_TEST_PORT_CONTROL))
+		usbh_writel(usbh, USBH_TEST_PORT_CONTROL,
+			    usbh->variant->tpc_val);
+
+	if (usbh->device_mode &&
+	    usbh_has_reg(usbh, USBH_UTMI_CONTROL1) &&
+	    usbh->variant->utmictl1_dev_set) {
+		u32 val = usbh_readl(usbh, USBH_UTMI_CONTROL1);
+
+		val |= usbh->variant->utmictl1_dev_set;
+
+		usbh_writel(usbh, USBH_UTMI_CONTROL1, val);
+	}
+
+	return 0;
+}
+
+static int bcm63xx_usbh_phy_power_on(struct phy *phy)
+{
+	struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+
+	if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) {
+		u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1);
+
+		val |= usbh->variant->power_pllc_set;
+		val &= ~usbh->variant->power_pllc_clr;
+
+		usbh_writel(usbh, USBH_PLL_CONTROL1, val);
+	}
+
+	return 0;
+}
+
+static int bcm63xx_usbh_phy_power_off(struct phy *phy)
+{
+	struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+
+	if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) {
+		u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1);
+
+		val &= ~usbh->variant->power_pllc_set;
+		val |= usbh->variant->power_pllc_clr;
+
+		usbh_writel(usbh, USBH_PLL_CONTROL1, val);
+	}
+
+	return 0;
+}
+
+static int bcm63xx_usbh_phy_exit(struct phy *phy)
+{
+	struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy);
+
+	clk_disable_unprepare(usbh->usbh_clk);
+	clk_disable_unprepare(usbh->usb_ref_clk);
+
+	return 0;
+}
+
+static const struct phy_ops bcm63xx_usbh_phy_ops = {
+	.exit = bcm63xx_usbh_phy_exit,
+	.init = bcm63xx_usbh_phy_init,
+	.power_off = bcm63xx_usbh_phy_power_off,
+	.power_on = bcm63xx_usbh_phy_power_on,
+	.owner = THIS_MODULE,
+};
+
+static struct phy *bcm63xx_usbh_phy_xlate(struct device *dev,
+					  const struct of_phandle_args *args)
+{
+	struct bcm63xx_usbh_phy *usbh = dev_get_drvdata(dev);
+
+	usbh->device_mode = !!args->args[0];
+
+	return of_phy_simple_xlate(dev, args);
+}
+
+static int bcm63xx_usbh_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcm63xx_usbh_phy	*usbh;
+	const struct bcm63xx_usbh_phy_variant *variant;
+	struct phy *phy;
+	struct phy_provider *phy_provider;
+
+	usbh = devm_kzalloc(dev, sizeof(*usbh), GFP_KERNEL);
+	if (!usbh)
+		return -ENOMEM;
+
+	variant = device_get_match_data(dev);
+	if (!variant)
+		return -EINVAL;
+	usbh->variant = variant;
+
+	usbh->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(usbh->base))
+		return PTR_ERR(usbh->base);
+
+	usbh->reset = devm_reset_control_get_exclusive(dev, NULL);
+	if (IS_ERR(usbh->reset)) {
+		if (PTR_ERR(usbh->reset) != -EPROBE_DEFER)
+			dev_err(dev, "failed to get reset\n");
+		return PTR_ERR(usbh->reset);
+	}
+
+	usbh->usbh_clk = devm_clk_get_optional(dev, "usbh");
+	if (IS_ERR(usbh->usbh_clk))
+		return PTR_ERR(usbh->usbh_clk);
+
+	usbh->usb_ref_clk = devm_clk_get_optional(dev, "usb_ref");
+	if (IS_ERR(usbh->usb_ref_clk))
+		return PTR_ERR(usbh->usb_ref_clk);
+
+	phy = devm_phy_create(dev, NULL, &bcm63xx_usbh_phy_ops);
+	if (IS_ERR(phy)) {
+		dev_err(dev, "failed to create PHY\n");
+		return PTR_ERR(phy);
+	}
+
+	platform_set_drvdata(pdev, usbh);
+	phy_set_drvdata(phy, usbh);
+
+	phy_provider = devm_of_phy_provider_register(dev,
+						     bcm63xx_usbh_phy_xlate);
+	if (IS_ERR(phy_provider)) {
+		dev_err(dev, "failed to register PHY provider\n");
+		return PTR_ERR(phy_provider);
+	}
+
+	dev_dbg(dev, "Registered BCM63xx USB PHY driver\n");
+
+	return 0;
+}
+
+static const struct of_device_id bcm63xx_usbh_phy_ids[] = {
+	{ .compatible = "brcm,bcm6318-usbh-phy", .data = &usbh_bcm6318 },
+	{ .compatible = "brcm,bcm6328-usbh-phy", .data = &usbh_bcm6328 },
+	{ .compatible = "brcm,bcm6358-usbh-phy", .data = &usbh_bcm6358 },
+	{ .compatible = "brcm,bcm6362-usbh-phy", .data = &usbh_bcm6368 },
+	{ .compatible = "brcm,bcm6368-usbh-phy", .data = &usbh_bcm6368 },
+	{ .compatible = "brcm,bcm63268-usbh-phy", .data = &usbh_bcm63268 },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, bcm63xx_usbh_phy_ids);
+
+static struct platform_driver bcm63xx_usbh_phy_driver = {
+	.driver	= {
+		.name = "bcm63xx-usbh-phy",
+		.of_match_table = bcm63xx_usbh_phy_ids,
+	},
+	.probe	= bcm63xx_usbh_phy_probe,
+};
+module_platform_driver(bcm63xx_usbh_phy_driver);
+
+MODULE_DESCRIPTION("BCM63xx USBH PHY driver");
+MODULE_AUTHOR("Álvaro Fernández Rojas <noltari@gmail.com>");
+MODULE_AUTHOR("Simon Arlott");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/phy/broadcom/phy-brcm-sata.c

@@ -0,0 +1,852 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Broadcom SATA3 AHCI Controller PHY Driver
+ *
+ * Copyright (C) 2016 Broadcom
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+#define SATA_PCB_BANK_OFFSET				0x23c
+#define SATA_PCB_REG_OFFSET(ofs)			((ofs) * 4)
+
+#define MAX_PORTS					2
+
+/* Register offset between PHYs in PCB space */
+#define SATA_PCB_REG_28NM_SPACE_SIZE			0x1000
+
+/* The older SATA PHY registers duplicated per port registers within the map,
+ * rather than having a separate map per port.
+ */
+#define SATA_PCB_REG_40NM_SPACE_SIZE			0x10
+
+/* Register offset between PHYs in PHY control space */
+#define SATA_PHY_CTRL_REG_28NM_SPACE_SIZE		0x8
+
+enum brcm_sata_phy_version {
+	BRCM_SATA_PHY_STB_16NM,
+	BRCM_SATA_PHY_STB_28NM,
+	BRCM_SATA_PHY_STB_40NM,
+	BRCM_SATA_PHY_IPROC_NS2,
+	BRCM_SATA_PHY_IPROC_NSP,
+	BRCM_SATA_PHY_IPROC_SR,
+	BRCM_SATA_PHY_DSL_28NM,
+};
+
+enum brcm_sata_phy_rxaeq_mode {
+	RXAEQ_MODE_OFF = 0,
+	RXAEQ_MODE_AUTO,
+	RXAEQ_MODE_MANUAL,
+};
+
+static enum brcm_sata_phy_rxaeq_mode rxaeq_to_val(const char *m)
+{
+	if (!strcmp(m, "auto"))
+		return RXAEQ_MODE_AUTO;
+	else if (!strcmp(m, "manual"))
+		return RXAEQ_MODE_MANUAL;
+	else
+		return RXAEQ_MODE_OFF;
+}
+
+struct brcm_sata_port {
+	int portnum;
+	struct phy *phy;
+	struct brcm_sata_phy *phy_priv;
+	bool ssc_en;
+	enum brcm_sata_phy_rxaeq_mode rxaeq_mode;
+	u32 rxaeq_val;
+	u32 tx_amplitude_val;
+};
+
+struct brcm_sata_phy {
+	struct device *dev;
+	void __iomem *phy_base;
+	void __iomem *ctrl_base;
+	enum brcm_sata_phy_version version;
+
+	struct brcm_sata_port phys[MAX_PORTS];
+};
+
+enum sata_phy_regs {
+	BLOCK0_REG_BANK				= 0x000,
+	BLOCK0_XGXSSTATUS			= 0x81,
+	BLOCK0_XGXSSTATUS_PLL_LOCK		= BIT(12),
+	BLOCK0_SPARE				= 0x8d,
+	BLOCK0_SPARE_OOB_CLK_SEL_MASK		= 0x3,
+	BLOCK0_SPARE_OOB_CLK_SEL_REFBY2		= 0x1,
+
+	BLOCK1_REG_BANK				= 0x10,
+	BLOCK1_TEST_TX				= 0x83,
+	BLOCK1_TEST_TX_AMP_SHIFT		= 12,
+
+	PLL_REG_BANK_0				= 0x050,
+	PLL_REG_BANK_0_PLLCONTROL_0		= 0x81,
+	PLLCONTROL_0_FREQ_DET_RESTART		= BIT(13),
+	PLLCONTROL_0_FREQ_MONITOR		= BIT(12),
+	PLLCONTROL_0_SEQ_START			= BIT(15),
+	PLL_CAP_CHARGE_TIME			= 0x83,
+	PLL_VCO_CAL_THRESH			= 0x84,
+	PLL_CAP_CONTROL				= 0x85,
+	PLL_FREQ_DET_TIME			= 0x86,
+	PLL_ACTRL2				= 0x8b,
+	PLL_ACTRL2_SELDIV_MASK			= 0x1f,
+	PLL_ACTRL2_SELDIV_SHIFT			= 9,
+	PLL_ACTRL6				= 0x86,
+
+	PLL1_REG_BANK				= 0x060,
+	PLL1_ACTRL2				= 0x82,
+	PLL1_ACTRL3				= 0x83,
+	PLL1_ACTRL4				= 0x84,
+	PLL1_ACTRL5				= 0x85,
+	PLL1_ACTRL6				= 0x86,
+	PLL1_ACTRL7				= 0x87,
+	PLL1_ACTRL8				= 0x88,
+
+	TX_REG_BANK				= 0x070,
+	TX_ACTRL0				= 0x80,
+	TX_ACTRL0_TXPOL_FLIP			= BIT(6),
+	TX_ACTRL5				= 0x85,
+	TX_ACTRL5_SSC_EN			= BIT(11),
+
+	AEQRX_REG_BANK_0			= 0xd0,
+	AEQ_CONTROL1				= 0x81,
+	AEQ_CONTROL1_ENABLE			= BIT(2),
+	AEQ_CONTROL1_FREEZE			= BIT(3),
+	AEQ_FRC_EQ				= 0x83,
+	AEQ_FRC_EQ_FORCE			= BIT(0),
+	AEQ_FRC_EQ_FORCE_VAL			= BIT(1),
+	AEQ_RFZ_FRC_VAL				= BIT(8),
+	AEQRX_REG_BANK_1			= 0xe0,
+	AEQRX_SLCAL0_CTRL0			= 0x82,
+	AEQRX_SLCAL1_CTRL0			= 0x86,
+
+	OOB_REG_BANK				= 0x150,
+	OOB1_REG_BANK				= 0x160,
+	OOB_CTRL1				= 0x80,
+	OOB_CTRL1_BURST_MAX_MASK		= 0xf,
+	OOB_CTRL1_BURST_MAX_SHIFT		= 12,
+	OOB_CTRL1_BURST_MIN_MASK		= 0xf,
+	OOB_CTRL1_BURST_MIN_SHIFT		= 8,
+	OOB_CTRL1_WAKE_IDLE_MAX_MASK		= 0xf,
+	OOB_CTRL1_WAKE_IDLE_MAX_SHIFT		= 4,
+	OOB_CTRL1_WAKE_IDLE_MIN_MASK		= 0xf,
+	OOB_CTRL1_WAKE_IDLE_MIN_SHIFT		= 0,
+	OOB_CTRL2				= 0x81,
+	OOB_CTRL2_SEL_ENA_SHIFT			= 15,
+	OOB_CTRL2_SEL_ENA_RC_SHIFT		= 14,
+	OOB_CTRL2_RESET_IDLE_MAX_MASK		= 0x3f,
+	OOB_CTRL2_RESET_IDLE_MAX_SHIFT		= 8,
+	OOB_CTRL2_BURST_CNT_MASK		= 0x3,
+	OOB_CTRL2_BURST_CNT_SHIFT		= 6,
+	OOB_CTRL2_RESET_IDLE_MIN_MASK		= 0x3f,
+	OOB_CTRL2_RESET_IDLE_MIN_SHIFT		= 0,
+
+	TXPMD_REG_BANK				= 0x1a0,
+	TXPMD_CONTROL1				= 0x81,
+	TXPMD_CONTROL1_TX_SSC_EN_FRC		= BIT(0),
+	TXPMD_CONTROL1_TX_SSC_EN_FRC_VAL	= BIT(1),
+	TXPMD_TX_FREQ_CTRL_CONTROL1		= 0x82,
+	TXPMD_TX_FREQ_CTRL_CONTROL2		= 0x83,
+	TXPMD_TX_FREQ_CTRL_CONTROL2_FMIN_MASK	= 0x3ff,
+	TXPMD_TX_FREQ_CTRL_CONTROL3		= 0x84,
+	TXPMD_TX_FREQ_CTRL_CONTROL3_FMAX_MASK	= 0x3ff,
+
+	RXPMD_REG_BANK				= 0x1c0,
+	RXPMD_RX_CDR_CONTROL1			= 0x81,
+	RXPMD_RX_PPM_VAL_MASK			= 0x1ff,
+	RXPMD_RXPMD_EN_FRC			= BIT(12),
+	RXPMD_RXPMD_EN_FRC_VAL			= BIT(13),
+	RXPMD_RX_CDR_CDR_PROP_BW		= 0x82,
+	RXPMD_G_CDR_PROP_BW_MASK		= 0x7,
+	RXPMD_G1_CDR_PROP_BW_SHIFT		= 0,
+	RXPMD_G2_CDR_PROP_BW_SHIFT		= 3,
+	RXPMD_G3_CDR_PROB_BW_SHIFT		= 6,
+	RXPMD_RX_CDR_CDR_ACQ_INTEG_BW		= 0x83,
+	RXPMD_G_CDR_ACQ_INT_BW_MASK		= 0x7,
+	RXPMD_G1_CDR_ACQ_INT_BW_SHIFT		= 0,
+	RXPMD_G2_CDR_ACQ_INT_BW_SHIFT		= 3,
+	RXPMD_G3_CDR_ACQ_INT_BW_SHIFT		= 6,
+	RXPMD_RX_CDR_CDR_LOCK_INTEG_BW		= 0x84,
+	RXPMD_G_CDR_LOCK_INT_BW_MASK		= 0x7,
+	RXPMD_G1_CDR_LOCK_INT_BW_SHIFT		= 0,
+	RXPMD_G2_CDR_LOCK_INT_BW_SHIFT		= 3,
+	RXPMD_G3_CDR_LOCK_INT_BW_SHIFT		= 6,
+	RXPMD_RX_FREQ_MON_CONTROL1		= 0x87,
+	RXPMD_MON_CORRECT_EN			= BIT(8),
+	RXPMD_MON_MARGIN_VAL_MASK		= 0xff,
+};
+
+enum sata_phy_ctrl_regs {
+	PHY_CTRL_1				= 0x0,
+	PHY_CTRL_1_RESET			= BIT(0),
+};
+
+static inline void __iomem *brcm_sata_ctrl_base(struct brcm_sata_port *port)
+{
+	struct brcm_sata_phy *priv = port->phy_priv;
+	u32 size = 0;
+
+	switch (priv->version) {
+	case BRCM_SATA_PHY_IPROC_NS2:
+		size = SATA_PHY_CTRL_REG_28NM_SPACE_SIZE;
+		break;
+	default:
+		dev_err(priv->dev, "invalid phy version\n");
+		break;
+	}
+
+	return priv->ctrl_base + (port->portnum * size);
+}
+
+static void brcm_sata_phy_wr(struct brcm_sata_port *port, u32 bank,
+			     u32 ofs, u32 msk, u32 value)
+{
+	struct brcm_sata_phy *priv = port->phy_priv;
+	void __iomem *pcb_base = priv->phy_base;
+	u32 tmp;
+
+	if (priv->version == BRCM_SATA_PHY_STB_40NM)
+		bank += (port->portnum * SATA_PCB_REG_40NM_SPACE_SIZE);
+	else
+		pcb_base += (port->portnum * SATA_PCB_REG_28NM_SPACE_SIZE);
+
+	writel(bank, pcb_base + SATA_PCB_BANK_OFFSET);
+	tmp = readl(pcb_base + SATA_PCB_REG_OFFSET(ofs));
+	tmp = (tmp & msk) | value;
+	writel(tmp, pcb_base + SATA_PCB_REG_OFFSET(ofs));
+}
+
+static u32 brcm_sata_phy_rd(struct brcm_sata_port *port, u32 bank, u32 ofs)
+{
+	struct brcm_sata_phy *priv = port->phy_priv;
+	void __iomem *pcb_base = priv->phy_base;
+
+	if (priv->version == BRCM_SATA_PHY_STB_40NM)
+		bank += (port->portnum * SATA_PCB_REG_40NM_SPACE_SIZE);
+	else
+		pcb_base += (port->portnum * SATA_PCB_REG_28NM_SPACE_SIZE);
+
+	writel(bank, pcb_base + SATA_PCB_BANK_OFFSET);
+	return readl(pcb_base + SATA_PCB_REG_OFFSET(ofs));
+}
+
+/* These defaults were characterized by H/W group */
+#define STB_FMIN_VAL_DEFAULT	0x3df
+#define STB_FMAX_VAL_DEFAULT	0x3df
+#define STB_FMAX_VAL_SSC	0x83
+
+static void brcm_stb_sata_ssc_init(struct brcm_sata_port *port)
+{
+	struct brcm_sata_phy *priv = port->phy_priv;
+	u32 tmp;
+
+	/* override the TX spread spectrum setting */
+	tmp = TXPMD_CONTROL1_TX_SSC_EN_FRC_VAL | TXPMD_CONTROL1_TX_SSC_EN_FRC;
+	brcm_sata_phy_wr(port, TXPMD_REG_BANK, TXPMD_CONTROL1, ~tmp, tmp);
+
+	/* set fixed min freq */
+	brcm_sata_phy_wr(port, TXPMD_REG_BANK, TXPMD_TX_FREQ_CTRL_CONTROL2,
+			 ~TXPMD_TX_FREQ_CTRL_CONTROL2_FMIN_MASK,
+			 STB_FMIN_VAL_DEFAULT);
+
+	/* set fixed max freq depending on SSC config */
+	if (port->ssc_en) {
+		dev_info(priv->dev, "enabling SSC on port%d\n", port->portnum);
+		tmp = STB_FMAX_VAL_SSC;
+	} else {
+		tmp = STB_FMAX_VAL_DEFAULT;
+	}
+
+	brcm_sata_phy_wr(port, TXPMD_REG_BANK, TXPMD_TX_FREQ_CTRL_CONTROL3,
+			  ~TXPMD_TX_FREQ_CTRL_CONTROL3_FMAX_MASK, tmp);
+}
+
+#define AEQ_FRC_EQ_VAL_SHIFT	2
+#define AEQ_FRC_EQ_VAL_MASK	0x3f
+
+static int brcm_stb_sata_rxaeq_init(struct brcm_sata_port *port)
+{
+	u32 tmp = 0, reg = 0;
+
+	switch (port->rxaeq_mode) {
+	case RXAEQ_MODE_OFF:
+		return 0;
+
+	case RXAEQ_MODE_AUTO:
+		reg = AEQ_CONTROL1;
+		tmp = AEQ_CONTROL1_ENABLE | AEQ_CONTROL1_FREEZE;
+		break;
+
+	case RXAEQ_MODE_MANUAL:
+		reg = AEQ_FRC_EQ;
+		tmp = AEQ_FRC_EQ_FORCE | AEQ_FRC_EQ_FORCE_VAL;
+		if (port->rxaeq_val > AEQ_FRC_EQ_VAL_MASK)
+			return -EINVAL;
+		tmp |= port->rxaeq_val << AEQ_FRC_EQ_VAL_SHIFT;
+		break;
+	}
+
+	brcm_sata_phy_wr(port, AEQRX_REG_BANK_0, reg, ~tmp, tmp);
+	brcm_sata_phy_wr(port, AEQRX_REG_BANK_1, reg, ~tmp, tmp);
+
+	return 0;
+}
+
+static int brcm_stb_sata_init(struct brcm_sata_port *port)
+{
+	brcm_stb_sata_ssc_init(port);
+
+	return brcm_stb_sata_rxaeq_init(port);
+}
+
+static int brcm_stb_sata_16nm_ssc_init(struct brcm_sata_port *port)
+{
+	u32 tmp, value;
+
+	/* Reduce CP tail current to 1/16th of its default value */
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL6, 0, 0x141);
+
+	/* Turn off CP tail current boost */
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL8, 0, 0xc006);
+
+	/* Set a specific AEQ equalizer value */
+	tmp = AEQ_FRC_EQ_FORCE_VAL | AEQ_FRC_EQ_FORCE;
+	brcm_sata_phy_wr(port, AEQRX_REG_BANK_0, AEQ_FRC_EQ,
+			 ~(tmp | AEQ_RFZ_FRC_VAL |
+			   AEQ_FRC_EQ_VAL_MASK << AEQ_FRC_EQ_VAL_SHIFT),
+			 tmp | 32 << AEQ_FRC_EQ_VAL_SHIFT);
+
+	/* Set RX PPM val center frequency */
+	if (port->ssc_en)
+		value = 0x52;
+	else
+		value = 0;
+	brcm_sata_phy_wr(port, RXPMD_REG_BANK, RXPMD_RX_CDR_CONTROL1,
+			 ~RXPMD_RX_PPM_VAL_MASK, value);
+
+	/* Set proportional loop bandwith Gen1/2/3 */
+	tmp = RXPMD_G_CDR_PROP_BW_MASK << RXPMD_G1_CDR_PROP_BW_SHIFT |
+	      RXPMD_G_CDR_PROP_BW_MASK << RXPMD_G2_CDR_PROP_BW_SHIFT |
+	      RXPMD_G_CDR_PROP_BW_MASK << RXPMD_G3_CDR_PROB_BW_SHIFT;
+	if (port->ssc_en)
+		value = 2 << RXPMD_G1_CDR_PROP_BW_SHIFT |
+			2 << RXPMD_G2_CDR_PROP_BW_SHIFT |
+			2 << RXPMD_G3_CDR_PROB_BW_SHIFT;
+	else
+		value = 1 << RXPMD_G1_CDR_PROP_BW_SHIFT |
+			1 << RXPMD_G2_CDR_PROP_BW_SHIFT |
+			1 << RXPMD_G3_CDR_PROB_BW_SHIFT;
+	brcm_sata_phy_wr(port, RXPMD_REG_BANK, RXPMD_RX_CDR_CDR_PROP_BW, ~tmp,
+			 value);
+
+	/* Set CDR integral loop acquisition bandwidth for Gen1/2/3 */
+	tmp = RXPMD_G_CDR_ACQ_INT_BW_MASK << RXPMD_G1_CDR_ACQ_INT_BW_SHIFT |
+	      RXPMD_G_CDR_ACQ_INT_BW_MASK << RXPMD_G2_CDR_ACQ_INT_BW_SHIFT |
+	      RXPMD_G_CDR_ACQ_INT_BW_MASK << RXPMD_G3_CDR_ACQ_INT_BW_SHIFT;
+	if (port->ssc_en)
+		value = 1 << RXPMD_G1_CDR_ACQ_INT_BW_SHIFT |
+			1 << RXPMD_G2_CDR_ACQ_INT_BW_SHIFT |
+			1 << RXPMD_G3_CDR_ACQ_INT_BW_SHIFT;
+	else
+		value = 0;
+	brcm_sata_phy_wr(port, RXPMD_REG_BANK, RXPMD_RX_CDR_CDR_ACQ_INTEG_BW,
+			 ~tmp, value);
+
+	/* Set CDR integral loop locking bandwidth to 1 for Gen 1/2/3 */
+	tmp = RXPMD_G_CDR_LOCK_INT_BW_MASK << RXPMD_G1_CDR_LOCK_INT_BW_SHIFT |
+	      RXPMD_G_CDR_LOCK_INT_BW_MASK << RXPMD_G2_CDR_LOCK_INT_BW_SHIFT |
+	      RXPMD_G_CDR_LOCK_INT_BW_MASK << RXPMD_G3_CDR_LOCK_INT_BW_SHIFT;
+	if (port->ssc_en)
+		value = 1 << RXPMD_G1_CDR_LOCK_INT_BW_SHIFT |
+			1 << RXPMD_G2_CDR_LOCK_INT_BW_SHIFT |
+			1 << RXPMD_G3_CDR_LOCK_INT_BW_SHIFT;
+	else
+		value = 0;
+	brcm_sata_phy_wr(port, RXPMD_REG_BANK, RXPMD_RX_CDR_CDR_LOCK_INTEG_BW,
+			 ~tmp, value);
+
+	/* Set no guard band and clamp CDR */
+	tmp = RXPMD_MON_CORRECT_EN | RXPMD_MON_MARGIN_VAL_MASK;
+	if (port->ssc_en)
+		value = 0x51;
+	else
+		value = 0;
+	brcm_sata_phy_wr(port, RXPMD_REG_BANK, RXPMD_RX_FREQ_MON_CONTROL1,
+			 ~tmp, RXPMD_MON_CORRECT_EN | value);
+
+	tmp = GENMASK(15, 12);
+	switch (port->tx_amplitude_val) {
+	case 400:
+		value = BIT(12) | BIT(13);
+		break;
+	case 500:
+		value = BIT(13);
+		break;
+	case 600:
+		value = BIT(12);
+		break;
+	case 800:
+		value = 0;
+		break;
+	default:
+		value = tmp;
+		break;
+	}
+
+	if (value != tmp)
+		brcm_sata_phy_wr(port, BLOCK1_REG_BANK, BLOCK1_TEST_TX, ~tmp,
+				 value);
+
+	/* Turn on/off SSC */
+	brcm_sata_phy_wr(port, TX_REG_BANK, TX_ACTRL5, ~TX_ACTRL5_SSC_EN,
+			 port->ssc_en ? TX_ACTRL5_SSC_EN : 0);
+
+	return 0;
+}
+
+static int brcm_stb_sata_16nm_init(struct brcm_sata_port *port)
+{
+	return brcm_stb_sata_16nm_ssc_init(port);
+}
+
+/* NS2 SATA PLL1 defaults were characterized by H/W group */
+#define NS2_PLL1_ACTRL2_MAGIC	0x1df8
+#define NS2_PLL1_ACTRL3_MAGIC	0x2b00
+#define NS2_PLL1_ACTRL4_MAGIC	0x8824
+
+static int brcm_ns2_sata_init(struct brcm_sata_port *port)
+{
+	int try;
+	unsigned int val;
+	void __iomem *ctrl_base = brcm_sata_ctrl_base(port);
+	struct device *dev = port->phy_priv->dev;
+
+	/* Configure OOB control */
+	val = 0x0;
+	val |= (0xc << OOB_CTRL1_BURST_MAX_SHIFT);
+	val |= (0x4 << OOB_CTRL1_BURST_MIN_SHIFT);
+	val |= (0x9 << OOB_CTRL1_WAKE_IDLE_MAX_SHIFT);
+	val |= (0x3 << OOB_CTRL1_WAKE_IDLE_MIN_SHIFT);
+	brcm_sata_phy_wr(port, OOB_REG_BANK, OOB_CTRL1, 0x0, val);
+	val = 0x0;
+	val |= (0x1b << OOB_CTRL2_RESET_IDLE_MAX_SHIFT);
+	val |= (0x2 << OOB_CTRL2_BURST_CNT_SHIFT);
+	val |= (0x9 << OOB_CTRL2_RESET_IDLE_MIN_SHIFT);
+	brcm_sata_phy_wr(port, OOB_REG_BANK, OOB_CTRL2, 0x0, val);
+
+	/* Configure PHY PLL register bank 1 */
+	val = NS2_PLL1_ACTRL2_MAGIC;
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL2, 0x0, val);
+	val = NS2_PLL1_ACTRL3_MAGIC;
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL3, 0x0, val);
+	val = NS2_PLL1_ACTRL4_MAGIC;
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL4, 0x0, val);
+
+	/* Configure PHY BLOCK0 register bank */
+	/* Set oob_clk_sel to refclk/2 */
+	brcm_sata_phy_wr(port, BLOCK0_REG_BANK, BLOCK0_SPARE,
+			 ~BLOCK0_SPARE_OOB_CLK_SEL_MASK,
+			 BLOCK0_SPARE_OOB_CLK_SEL_REFBY2);
+
+	/* Strobe PHY reset using PHY control register */
+	writel(PHY_CTRL_1_RESET, ctrl_base + PHY_CTRL_1);
+	mdelay(1);
+	writel(0x0, ctrl_base + PHY_CTRL_1);
+	mdelay(1);
+
+	/* Wait for PHY PLL lock by polling pll_lock bit */
+	try = 50;
+	while (try) {
+		val = brcm_sata_phy_rd(port, BLOCK0_REG_BANK,
+					BLOCK0_XGXSSTATUS);
+		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)
+			break;
+		msleep(20);
+		try--;
+	}
+	if (!try) {
+		/* PLL did not lock; give up */
+		dev_err(dev, "port%d PLL did not lock\n", port->portnum);
+		return -ETIMEDOUT;
+	}
+
+	dev_dbg(dev, "port%d initialized\n", port->portnum);
+
+	return 0;
+}
+
+static int brcm_nsp_sata_init(struct brcm_sata_port *port)
+{
+	struct device *dev = port->phy_priv->dev;
+	unsigned int oob_bank;
+	unsigned int val, try;
+
+	/* Configure OOB control */
+	if (port->portnum == 0)
+		oob_bank = OOB_REG_BANK;
+	else if (port->portnum == 1)
+		oob_bank = OOB1_REG_BANK;
+	else
+		return -EINVAL;
+
+	val = 0x0;
+	val |= (0x0f << OOB_CTRL1_BURST_MAX_SHIFT);
+	val |= (0x06 << OOB_CTRL1_BURST_MIN_SHIFT);
+	val |= (0x0f << OOB_CTRL1_WAKE_IDLE_MAX_SHIFT);
+	val |= (0x06 << OOB_CTRL1_WAKE_IDLE_MIN_SHIFT);
+	brcm_sata_phy_wr(port, oob_bank, OOB_CTRL1, 0x0, val);
+
+	val = 0x0;
+	val |= (0x2e << OOB_CTRL2_RESET_IDLE_MAX_SHIFT);
+	val |= (0x02 << OOB_CTRL2_BURST_CNT_SHIFT);
+	val |= (0x16 << OOB_CTRL2_RESET_IDLE_MIN_SHIFT);
+	brcm_sata_phy_wr(port, oob_bank, OOB_CTRL2, 0x0, val);
+
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_ACTRL2,
+		~(PLL_ACTRL2_SELDIV_MASK << PLL_ACTRL2_SELDIV_SHIFT),
+		0x0c << PLL_ACTRL2_SELDIV_SHIFT);
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_CAP_CONTROL,
+						0xff0, 0x4f0);
+
+	val = PLLCONTROL_0_FREQ_DET_RESTART | PLLCONTROL_0_FREQ_MONITOR;
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_REG_BANK_0_PLLCONTROL_0,
+								~val, val);
+	val = PLLCONTROL_0_SEQ_START;
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_REG_BANK_0_PLLCONTROL_0,
+								~val, 0);
+	mdelay(10);
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_REG_BANK_0_PLLCONTROL_0,
+								~val, val);
+
+	/* Wait for pll_seq_done bit */
+	try = 50;
+	while (--try) {
+		val = brcm_sata_phy_rd(port, BLOCK0_REG_BANK,
+					BLOCK0_XGXSSTATUS);
+		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)
+			break;
+		msleep(20);
+	}
+	if (!try) {
+		/* PLL did not lock; give up */
+		dev_err(dev, "port%d PLL did not lock\n", port->portnum);
+		return -ETIMEDOUT;
+	}
+
+	dev_dbg(dev, "port%d initialized\n", port->portnum);
+
+	return 0;
+}
+
+/* SR PHY PLL0 registers */
+#define SR_PLL0_ACTRL6_MAGIC			0xa
+
+/* SR PHY PLL1 registers */
+#define SR_PLL1_ACTRL2_MAGIC			0x32
+#define SR_PLL1_ACTRL3_MAGIC			0x2
+#define SR_PLL1_ACTRL4_MAGIC			0x3e8
+
+static int brcm_sr_sata_init(struct brcm_sata_port *port)
+{
+	struct device *dev = port->phy_priv->dev;
+	unsigned int val, try;
+
+	/* Configure PHY PLL register bank 1 */
+	val = SR_PLL1_ACTRL2_MAGIC;
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL2, 0x0, val);
+	val = SR_PLL1_ACTRL3_MAGIC;
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL3, 0x0, val);
+	val = SR_PLL1_ACTRL4_MAGIC;
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL4, 0x0, val);
+
+	/* Configure PHY PLL register bank 0 */
+	val = SR_PLL0_ACTRL6_MAGIC;
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_ACTRL6, 0x0, val);
+
+	/* Wait for PHY PLL lock by polling pll_lock bit */
+	try = 50;
+	do {
+		val = brcm_sata_phy_rd(port, BLOCK0_REG_BANK,
+					BLOCK0_XGXSSTATUS);
+		if (val & BLOCK0_XGXSSTATUS_PLL_LOCK)
+			break;
+		msleep(20);
+		try--;
+	} while (try);
+
+	if ((val & BLOCK0_XGXSSTATUS_PLL_LOCK) == 0) {
+		/* PLL did not lock; give up */
+		dev_err(dev, "port%d PLL did not lock\n", port->portnum);
+		return -ETIMEDOUT;
+	}
+
+	/* Invert Tx polarity */
+	brcm_sata_phy_wr(port, TX_REG_BANK, TX_ACTRL0,
+			 ~TX_ACTRL0_TXPOL_FLIP, TX_ACTRL0_TXPOL_FLIP);
+
+	/* Configure OOB control to handle 100MHz reference clock */
+	val = ((0xc << OOB_CTRL1_BURST_MAX_SHIFT) |
+		(0x4 << OOB_CTRL1_BURST_MIN_SHIFT) |
+		(0x8 << OOB_CTRL1_WAKE_IDLE_MAX_SHIFT) |
+		(0x3 << OOB_CTRL1_WAKE_IDLE_MIN_SHIFT));
+	brcm_sata_phy_wr(port, OOB_REG_BANK, OOB_CTRL1, 0x0, val);
+	val = ((0x1b << OOB_CTRL2_RESET_IDLE_MAX_SHIFT) |
+		(0x2 << OOB_CTRL2_BURST_CNT_SHIFT) |
+		(0x9 << OOB_CTRL2_RESET_IDLE_MIN_SHIFT));
+	brcm_sata_phy_wr(port, OOB_REG_BANK, OOB_CTRL2, 0x0, val);
+
+	return 0;
+}
+
+static int brcm_dsl_sata_init(struct brcm_sata_port *port)
+{
+	struct device *dev = port->phy_priv->dev;
+	unsigned int try;
+	u32 tmp;
+
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL7, 0, 0x873);
+
+	brcm_sata_phy_wr(port, PLL1_REG_BANK, PLL1_ACTRL6, 0, 0xc000);
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_REG_BANK_0_PLLCONTROL_0,
+			 0, 0x3089);
+	usleep_range(1000, 2000);
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_REG_BANK_0_PLLCONTROL_0,
+			 0, 0x3088);
+	usleep_range(1000, 2000);
+
+	brcm_sata_phy_wr(port, AEQRX_REG_BANK_1, AEQRX_SLCAL0_CTRL0,
+			 0, 0x3000);
+
+	brcm_sata_phy_wr(port, AEQRX_REG_BANK_1, AEQRX_SLCAL1_CTRL0,
+			 0, 0x3000);
+	usleep_range(1000, 2000);
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_CAP_CHARGE_TIME, 0, 0x32);
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_VCO_CAL_THRESH, 0, 0xa);
+
+	brcm_sata_phy_wr(port, PLL_REG_BANK_0, PLL_FREQ_DET_TIME, 0, 0x64);
+	usleep_range(1000, 2000);
+
+	/* Acquire PLL lock */
+	try = 50;
+	while (try) {
+		tmp = brcm_sata_phy_rd(port, BLOCK0_REG_BANK,
+				       BLOCK0_XGXSSTATUS);
+		if (tmp & BLOCK0_XGXSSTATUS_PLL_LOCK)
+			break;
+		msleep(20);
+		try--;
+	}
+
+	if (!try) {
+		/* PLL did not lock; give up */
+		dev_err(dev, "port%d PLL did not lock\n", port->portnum);
+		return -ETIMEDOUT;
+	}
+
+	dev_dbg(dev, "port%d initialized\n", port->portnum);
+
+	return 0;
+}
+
+static int brcm_sata_phy_init(struct phy *phy)
+{
+	int rc;
+	struct brcm_sata_port *port = phy_get_drvdata(phy);
+
+	switch (port->phy_priv->version) {
+	case BRCM_SATA_PHY_STB_16NM:
+		rc = brcm_stb_sata_16nm_init(port);
+		break;
+	case BRCM_SATA_PHY_STB_28NM:
+	case BRCM_SATA_PHY_STB_40NM:
+		rc = brcm_stb_sata_init(port);
+		break;
+	case BRCM_SATA_PHY_IPROC_NS2:
+		rc = brcm_ns2_sata_init(port);
+		break;
+	case BRCM_SATA_PHY_IPROC_NSP:
+		rc = brcm_nsp_sata_init(port);
+		break;
+	case BRCM_SATA_PHY_IPROC_SR:
+		rc = brcm_sr_sata_init(port);
+		break;
+	case BRCM_SATA_PHY_DSL_28NM:
+		rc = brcm_dsl_sata_init(port);
+		break;
+	default:
+		rc = -ENODEV;
+	}
+
+	return rc;
+}
+
+static void brcm_stb_sata_calibrate(struct brcm_sata_port *port)
+{
+	u32 tmp = BIT(8);
+
+	brcm_sata_phy_wr(port, RXPMD_REG_BANK, RXPMD_RX_FREQ_MON_CONTROL1,
+			 ~tmp, tmp);
+}
+
+static int brcm_sata_phy_calibrate(struct phy *phy)
+{
+	struct brcm_sata_port *port = phy_get_drvdata(phy);
+	int rc = -EOPNOTSUPP;
+
+	switch (port->phy_priv->version) {
+	case BRCM_SATA_PHY_STB_28NM:
+	case BRCM_SATA_PHY_STB_40NM:
+		brcm_stb_sata_calibrate(port);
+		rc = 0;
+		break;
+	default:
+		break;
+	}
+
+	return rc;
+}
+
+static const struct phy_ops phy_ops = {
+	.init		= brcm_sata_phy_init,
+	.calibrate	= brcm_sata_phy_calibrate,
+	.owner		= THIS_MODULE,
+};
+
+static const struct of_device_id brcm_sata_phy_of_match[] = {
+	{ .compatible	= "brcm,bcm7216-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_STB_16NM },
+	{ .compatible	= "brcm,bcm7445-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_STB_28NM },
+	{ .compatible	= "brcm,bcm7425-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_STB_40NM },
+	{ .compatible	= "brcm,iproc-ns2-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_IPROC_NS2 },
+	{ .compatible = "brcm,iproc-nsp-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_IPROC_NSP },
+	{ .compatible	= "brcm,iproc-sr-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_IPROC_SR },
+	{ .compatible	= "brcm,bcm63138-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_DSL_28NM },
+	{},
+};
+MODULE_DEVICE_TABLE(of, brcm_sata_phy_of_match);
+
+static int brcm_sata_phy_probe(struct platform_device *pdev)
+{
+	const char *rxaeq_mode;
+	struct device *dev = &pdev->dev;
+	struct device_node *dn = dev->of_node;
+	const struct of_device_id *of_id;
+	struct brcm_sata_phy *priv;
+	struct phy_provider *provider;
+	int count = 0;
+
+	if (of_get_child_count(dn) == 0)
+		return -ENODEV;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	dev_set_drvdata(dev, priv);
+	priv->dev = dev;
+
+	priv->phy_base = devm_platform_ioremap_resource_byname(pdev, "phy");
+	if (IS_ERR(priv->phy_base))
+		return PTR_ERR(priv->phy_base);
+
+	of_id = of_match_node(brcm_sata_phy_of_match, dn);
+	if (of_id)
+		priv->version = (uintptr_t)of_id->data;
+	else
+		priv->version = BRCM_SATA_PHY_STB_28NM;
+
+	if (priv->version == BRCM_SATA_PHY_IPROC_NS2) {
+		priv->ctrl_base = devm_platform_ioremap_resource_byname(pdev, "phy-ctrl");
+		if (IS_ERR(priv->ctrl_base))
+			return PTR_ERR(priv->ctrl_base);
+	}
+
+	for_each_available_child_of_node_scoped(dn, child) {
+		unsigned int id;
+		struct brcm_sata_port *port;
+
+		if (of_property_read_u32(child, "reg", &id)) {
+			dev_err(dev, "missing reg property in node %pOFn\n",
+					child);
+			return -EINVAL;
+		}
+
+		if (id >= MAX_PORTS) {
+			dev_err(dev, "invalid reg: %u\n", id);
+			return -EINVAL;
+		}
+		if (priv->phys[id].phy) {
+			dev_err(dev, "already registered port %u\n", id);
+			return -EINVAL;
+		}
+
+		port = &priv->phys[id];
+		port->portnum = id;
+		port->phy_priv = priv;
+		port->phy = devm_phy_create(dev, child, &phy_ops);
+		port->rxaeq_mode = RXAEQ_MODE_OFF;
+		if (!of_property_read_string(child, "brcm,rxaeq-mode",
+					     &rxaeq_mode))
+			port->rxaeq_mode = rxaeq_to_val(rxaeq_mode);
+		if (port->rxaeq_mode == RXAEQ_MODE_MANUAL)
+			of_property_read_u32(child, "brcm,rxaeq-value",
+					     &port->rxaeq_val);
+
+		of_property_read_u32(child, "brcm,tx-amplitude-millivolt",
+				     &port->tx_amplitude_val);
+
+		port->ssc_en = of_property_read_bool(child, "brcm,enable-ssc");
+		if (IS_ERR(port->phy)) {
+			dev_err(dev, "failed to create PHY\n");
+			return PTR_ERR(port->phy);
+		}
+
+		phy_set_drvdata(port->phy, port);
+		count++;
+	}
+
+	provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(provider)) {
+		dev_err(dev, "could not register PHY provider\n");
+		return PTR_ERR(provider);
+	}
+
+	dev_dbg(dev, "registered %d port(s)\n", count);
+
+	return 0;
+}
+
+static struct platform_driver brcm_sata_phy_driver = {
+	.probe	= brcm_sata_phy_probe,
+	.driver	= {
+		.of_match_table	= brcm_sata_phy_of_match,
+		.name		= "brcm-sata-phy",
+	}
+};
+module_platform_driver(brcm_sata_phy_driver);
+
+MODULE_DESCRIPTION("Broadcom SATA PHY driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marc Carino");
+MODULE_AUTHOR("Brian Norris");

linux-7.2.3/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c

@@ -0,0 +1,526 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018, Broadcom */
+
+/*
+ * This module contains USB PHY initialization for power up and S3 resume
+ * for newer Synopsys based USB hardware first used on the bcm7216.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include <linux/soc/brcmstb/brcmstb.h>
+#include "phy-brcm-usb-init.h"
+
+#define PHY_LOCK_TIMEOUT_MS 200
+
+/* Register definitions for syscon piarbctl registers */
+#define PIARBCTL_CAM			0x00
+#define PIARBCTL_SPLITTER		0x04
+#define PIARBCTL_MISC			0x08
+#define   PIARBCTL_MISC_SATA_PRIORITY_MASK		GENMASK(3, 0)
+#define   PIARBCTL_MISC_CAM0_MEM_PAGE_MASK		GENMASK(7, 4)
+#define   PIARBCTL_MISC_CAM1_MEM_PAGE_MASK		GENMASK(11, 8)
+#define   PIARBCTL_MISC_USB_MEM_PAGE_MASK		GENMASK(15, 12)
+#define   PIARBCTL_MISC_USB_PRIORITY_MASK		GENMASK(19, 16)
+#define   PIARBCTL_MISC_USB_4G_SDRAM_MASK		BIT(29)
+#define   PIARBCTL_MISC_USB_SELECT_MASK			BIT(30)
+#define   PIARBCTL_MISC_SECURE_MASK			BIT(31)
+
+#define PIARBCTL_MISC_USB_ONLY_MASK		\
+	(PIARBCTL_MISC_USB_SELECT_MASK |	\
+	 PIARBCTL_MISC_USB_4G_SDRAM_MASK |	\
+	 PIARBCTL_MISC_USB_PRIORITY_MASK |	\
+	 PIARBCTL_MISC_USB_MEM_PAGE_MASK)
+
+/* Register definitions for the USB CTRL block */
+#define USB_CTRL_SETUP			0x00
+#define   USB_CTRL_SETUP_IOC_MASK			BIT(4)
+#define   USB_CTRL_SETUP_IPP_MASK			BIT(5)
+#define   USB_CTRL_SETUP_SOFT_SHUTDOWN_MASK		BIT(9)
+#define   USB_CTRL_SETUP_SCB1_EN_MASK			BIT(14)
+#define   USB_CTRL_SETUP_SCB2_EN_MASK			BIT(15)
+#define   USB_CTRL_SETUP_tca_drv_sel_MASK		BIT(24)
+#define   USB_CTRL_SETUP_STRAP_IPP_SEL_MASK		BIT(25)
+#define USB_CTRL_USB_PM			0x04
+#define   USB_CTRL_USB_PM_REF_S2_CLK_SWITCH_EN_MASK	BIT(1)
+#define   USB_CTRL_USB_PM_UTMI_S2_CLK_SWITCH_EN_MASK	BIT(2)
+#define   USB_CTRL_USB_PM_XHC_S2_CLK_SWITCH_EN_MASK	BIT(3)
+#define   USB_CTRL_USB_PM_XHC_PME_EN_MASK		BIT(4)
+#define   USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK		BIT(22)
+#define   USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK		BIT(23)
+#define   USB_CTRL_USB_PM_SOFT_RESET_MASK		BIT(30)
+#define   USB_CTRL_USB_PM_USB_PWRDN_MASK		BIT(31)
+#define USB_CTRL_USB_PM_STATUS		0x08
+#define USB_CTRL_USB_DEVICE_CTL1	0x10
+#define   USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK	GENMASK(1, 0)
+#define USB_CTRL_TEST_PORT_CTL		0x30
+#define   USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_MASK		GENMASK(7, 0)
+#define   USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_PME_GEN_MASK	0x0000002e
+#define USB_CTRL_TP_DIAG1		0x34
+#define   USB_CTLR_TP_DIAG1_wake_MASK			BIT(1)
+#define USB_CTRL_CTLR_CSHCR		0x50
+#define   USB_CTRL_CTLR_CSHCR_ctl_pme_en_MASK		BIT(18)
+#define USB_CTRL_P0_U2PHY_CFG1		0x68
+#define   USB_CTRL_P0_U2PHY_CFG1_COMMONONN_MASK		BIT(10)
+#define USB_CTRL_P0_U2PHY_CFG2		0x6c
+#define   USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_MASK	GENMASK(20, 17)
+#define   USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_SHIFT	17
+#define   USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_MASK	GENMASK(24, 23)
+#define   USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_SHIFT	23
+#define   USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_MASK	GENMASK(26, 25)
+#define   USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_SHIFT	25
+
+/* Register definitions for the USB_PHY block in 7211b0 */
+#define USB_PHY_PLL_CTL			0x00
+#define   USB_PHY_PLL_CTL_PLL_SUSPEND_MASK		BIT(27)
+#define   USB_PHY_PLL_CTL_PLL_RESETB_MASK		BIT(30)
+#define USB_PHY_PLL_LDO_CTL		0x08
+#define   USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK	BIT(0)
+#define   USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK	BIT(1)
+#define   USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK		BIT(2)
+#define USB_PHY_UTMI_CTL_1		0x04
+#define   USB_PHY_UTMI_CTL_1_PHY_MODE_MASK		GENMASK(3, 2)
+#define   USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT		2
+#define   USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK	BIT(11)
+#define USB_PHY_IDDQ			0x1c
+#define   USB_PHY_IDDQ_phy_iddq_MASK			BIT(0)
+#define USB_PHY_STATUS			0x20
+#define   USB_PHY_STATUS_pll_lock_MASK			BIT(0)
+
+/* Register definitions for the MDIO registers in the DWC2 block of
+ * the 7211b0.
+ * NOTE: The PHY's MDIO registers are only accessible through the
+ * legacy DesignWare USB controller even though it's not being used.
+ */
+#define USB_GMDIOCSR	0
+#define USB_GMDIOGEN	4
+
+/* Register definitions for the BDC EC block in 7211b0 */
+#define BDC_EC_AXIRDA			0x0c
+#define   BDC_EC_AXIRDA_RTS_MASK			GENMASK(31, 28)
+#define   BDC_EC_AXIRDA_RTS_SHIFT			28
+
+#define USB_XHCI_GBL_GUSB2PHYCFG	0x100
+#define   USB_XHCI_GBL_GUSB2PHYCFG_U2_FREECLK_EXISTS_MASK	BIT(30)
+
+static void usb_mdio_write_7211b0(struct brcm_usb_init_params *params,
+				  uint8_t addr, uint16_t data)
+{
+	void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO];
+
+	addr &= 0x1f; /* 5-bit address */
+	brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN);
+	while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+		;
+	brcm_usb_writel(0x59020000 | (addr << 18) | data,
+			usb_mdio + USB_GMDIOGEN);
+	while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+		;
+	brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN);
+	while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+		;
+}
+
+static uint16_t __maybe_unused usb_mdio_read_7211b0(
+	struct brcm_usb_init_params *params, uint8_t addr)
+{
+	void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO];
+
+	addr &= 0x1f; /* 5-bit address */
+	brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN);
+	while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+		;
+	brcm_usb_writel(0x69020000 | (addr << 18), usb_mdio + USB_GMDIOGEN);
+	while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+		;
+	brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN);
+	while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+		;
+	return brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & 0xffff;
+}
+
+static void usb2_eye_fix_7211b0(struct brcm_usb_init_params *params)
+{
+	/* select bank */
+	usb_mdio_write_7211b0(params, 0x1f, 0x80a0);
+
+	/* Set the eye */
+	usb_mdio_write_7211b0(params, 0x0a, 0xc6a0);
+}
+
+static void xhci_soft_reset(struct brcm_usb_init_params *params,
+			int on_off)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	void __iomem *xhci_gbl = params->regs[BRCM_REGS_XHCI_GBL];
+
+	/* Assert reset */
+	if (on_off) {
+		USB_CTRL_UNSET(ctrl, USB_PM, XHC_SOFT_RESETB);
+	/* De-assert reset */
+	} else {
+		USB_CTRL_SET(ctrl, USB_PM, XHC_SOFT_RESETB);
+		/* Required for COMMONONN to be set */
+		if (params->supported_port_modes != USB_CTLR_MODE_DRD)
+			USB_XHCI_GBL_UNSET(xhci_gbl, GUSB2PHYCFG,
+					   U2_FREECLK_EXISTS);
+	}
+}
+
+static void usb_init_ipp(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	u32 reg;
+	u32 orig_reg;
+
+	pr_debug("%s\n", __func__);
+
+	orig_reg = reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
+	if (params->ipp != 2)
+		/* override ipp strap pin (if it exits) */
+		reg &= ~(USB_CTRL_MASK(SETUP, STRAP_IPP_SEL));
+
+	/* Override the default OC and PP polarity */
+	reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
+	if (params->ioc)
+		reg |= USB_CTRL_MASK(SETUP, IOC);
+	if (params->ipp == 1)
+		reg |= USB_CTRL_MASK(SETUP, IPP);
+	brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+
+	/*
+	 * If we're changing IPP, make sure power is off long enough
+	 * to turn off any connected devices.
+	 */
+	if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP))
+		msleep(50);
+}
+
+static void syscon_piarbctl_init(struct regmap *rmap)
+{
+	/* Switch from legacy USB OTG controller to new STB USB controller */
+	regmap_update_bits(rmap, PIARBCTL_MISC, PIARBCTL_MISC_USB_ONLY_MASK,
+			   PIARBCTL_MISC_USB_SELECT_MASK |
+			   PIARBCTL_MISC_USB_4G_SDRAM_MASK);
+}
+
+static void usb_init_common(struct brcm_usb_init_params *params)
+{
+	u32 reg;
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+	pr_debug("%s\n", __func__);
+
+	if (USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE)) {
+		reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+		reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
+		reg |= params->port_mode;
+		brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+	}
+	switch (params->supported_port_modes) {
+	case USB_CTLR_MODE_HOST:
+		USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB);
+		break;
+	default:
+		USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB);
+		USB_CTRL_SET(ctrl, USB_PM, BDC_SOFT_RESETB);
+		break;
+	}
+}
+
+static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params,
+				   bool enable)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+	if (enable)
+		USB_CTRL_SET(ctrl, CTLR_CSHCR, ctl_pme_en);
+	else
+		USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en);
+}
+
+static void usb_wake_enable_7216(struct brcm_usb_init_params *params,
+				 bool enable)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+	if (enable)
+		USB_CTRL_SET(ctrl, USB_PM, XHC_PME_EN);
+	else
+		USB_CTRL_UNSET(ctrl, USB_PM, XHC_PME_EN);
+}
+
+static void usb_init_common_7211b0(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY];
+	void __iomem *bdc_ec = params->regs[BRCM_REGS_BDC_EC];
+	int timeout_ms = PHY_LOCK_TIMEOUT_MS;
+	u32 reg;
+
+	if (params->syscon_piarbctl)
+		syscon_piarbctl_init(params->syscon_piarbctl);
+
+	USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
+
+	usb_wake_enable_7211b0(params, false);
+	if (!params->wake_enabled) {
+
+		/* undo possible suspend settings */
+		brcm_usb_writel(0, usb_phy + USB_PHY_IDDQ);
+		reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
+		reg |= USB_PHY_PLL_CTL_PLL_RESETB_MASK;
+		brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
+
+		/* temporarily enable FSM so PHY comes up properly */
+		reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
+		reg |= USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK;
+		brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
+	}
+
+	/* Disable PLL auto suspend */
+	reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
+	reg |= USB_PHY_PLL_CTL_PLL_SUSPEND_MASK;
+	brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
+
+	/* Init the PHY */
+	reg = USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK |
+		USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK |
+		USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK;
+	brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_LDO_CTL);
+
+	/* wait for lock */
+	while (timeout_ms-- > 0) {
+		reg = brcm_usb_readl(usb_phy + USB_PHY_STATUS);
+		if (reg & USB_PHY_STATUS_pll_lock_MASK)
+			break;
+		usleep_range(1000, 2000);
+	}
+
+	/* Set the PHY_MODE */
+	reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
+	reg &= ~USB_PHY_UTMI_CTL_1_PHY_MODE_MASK;
+	reg |= params->supported_port_modes << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT;
+	brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
+
+	usb_init_common(params);
+
+	/*
+	 * The BDC controller will get occasional failures with
+	 * the default "Read Transaction Size" of 6 (1024 bytes).
+	 * Set it to 4 (256 bytes).
+	 */
+	if ((params->supported_port_modes != USB_CTLR_MODE_HOST) && bdc_ec) {
+		reg = brcm_usb_readl(bdc_ec + BDC_EC_AXIRDA);
+		reg &= ~BDC_EC_AXIRDA_RTS_MASK;
+		reg |= (0x4 << BDC_EC_AXIRDA_RTS_SHIFT);
+		brcm_usb_writel(reg, bdc_ec + BDC_EC_AXIRDA);
+	}
+
+	/*
+	 * Disable FSM, otherwise the PHY will auto suspend when no
+	 * device is connected and will be reset on resume.
+	 */
+	reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
+	reg &= ~USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK;
+	brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
+
+	usb2_eye_fix_7211b0(params);
+}
+
+static void usb_init_common_7216(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+	USB_CTRL_UNSET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN);
+
+	/*
+	 * The PHY might be in a bad state if it is already powered
+	 * up. Toggle the power just in case.
+	 */
+	USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
+	USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
+
+	/* 1 millisecond - for USB clocks to settle down */
+	usleep_range(1000, 2000);
+
+	/*
+	 * Disable PHY when port is suspended
+	 * Does not work in DRD mode
+	 */
+	if (params->supported_port_modes != USB_CTLR_MODE_DRD)
+		USB_CTRL_SET(ctrl, P0_U2PHY_CFG1, COMMONONN);
+
+	usb_wake_enable_7216(params, false);
+	usb_init_common(params);
+}
+
+static void usb_init_xhci(struct brcm_usb_init_params *params)
+{
+	pr_debug("%s\n", __func__);
+
+	xhci_soft_reset(params, 0);
+}
+
+static void usb_uninit_common_7216(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+	pr_debug("%s\n", __func__);
+
+	if (params->wake_enabled) {
+		/* Switch to using slower clock during suspend to save power */
+		USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN);
+		usb_wake_enable_7216(params, true);
+	} else {
+		USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
+	}
+}
+
+static void usb_init_common_74110(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	u32 reg;
+
+	reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM));
+	reg &= ~(USB_CTRL_MASK(USB_PM, REF_S2_CLK_SWITCH_EN) |
+		USB_CTRL_MASK(USB_PM, UTMI_S2_CLK_SWITCH_EN));
+	brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM));
+
+	usb_init_common_7216(params);
+
+	reg = brcm_usb_readl(USB_CTRL_REG(ctrl, P0_U2PHY_CFG2));
+	reg &= ~(USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_MASK |
+		 USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_MASK |
+		 USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_MASK);
+	reg |= (0x6 << USB_CTRL_P0_U2PHY_CFG2_TXVREFTUNE0_SHIFT) |
+		(0x3 << USB_CTRL_P0_U2PHY_CFG2_TXRESTUNE0_SHIFT) |
+		(0x2 << USB_CTRL_P0_U2PHY_CFG2_TXPREEMPAMPTUNE0_SHIFT);
+	brcm_usb_writel(reg, USB_CTRL_REG(ctrl, P0_U2PHY_CFG2));
+}
+
+static void usb_uninit_common_74110(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	u32 reg;
+
+	if (params->wake_enabled) {
+		reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM));
+		reg |= (USB_CTRL_MASK(USB_PM, REF_S2_CLK_SWITCH_EN) |
+		       USB_CTRL_MASK(USB_PM, UTMI_S2_CLK_SWITCH_EN));
+		brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM));
+	}
+	usb_uninit_common_7216(params);
+}
+
+static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY];
+	u32 reg;
+
+	pr_debug("%s\n", __func__);
+
+	if (params->wake_enabled) {
+		USB_CTRL_SET(ctrl, TEST_PORT_CTL, TPOUT_SEL_PME_GEN);
+		usb_wake_enable_7211b0(params, true);
+	} else {
+		USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
+		brcm_usb_writel(0, usb_phy + USB_PHY_PLL_LDO_CTL);
+		reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
+		reg &= ~USB_PHY_PLL_CTL_PLL_RESETB_MASK;
+		brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
+		brcm_usb_writel(USB_PHY_IDDQ_phy_iddq_MASK,
+				usb_phy + USB_PHY_IDDQ);
+	}
+
+}
+
+static void usb_uninit_xhci(struct brcm_usb_init_params *params)
+{
+
+	pr_debug("%s\n", __func__);
+
+	if (!params->wake_enabled)
+		xhci_soft_reset(params, 1);
+}
+
+static int usb_get_dual_select(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	u32 reg = 0;
+
+	pr_debug("%s\n", __func__);
+
+	reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+	reg &= USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
+	return reg;
+}
+
+static void usb_set_dual_select(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+	u32 reg;
+
+	pr_debug("%s\n", __func__);
+
+	reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+	reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
+	reg |= params->port_mode;
+	brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+}
+
+static const struct brcm_usb_init_ops bcm74110_ops = {
+	.init_ipp = usb_init_ipp,
+	.init_common = usb_init_common_74110,
+	.init_xhci = usb_init_xhci,
+	.uninit_common = usb_uninit_common_74110,
+	.uninit_xhci = usb_uninit_xhci,
+	.get_dual_select = usb_get_dual_select,
+	.set_dual_select = usb_set_dual_select,
+};
+
+static const struct brcm_usb_init_ops bcm7216_ops = {
+	.init_ipp = usb_init_ipp,
+	.init_common = usb_init_common_7216,
+	.init_xhci = usb_init_xhci,
+	.uninit_common = usb_uninit_common_7216,
+	.uninit_xhci = usb_uninit_xhci,
+	.get_dual_select = usb_get_dual_select,
+	.set_dual_select = usb_set_dual_select,
+};
+
+static const struct brcm_usb_init_ops bcm7211b0_ops = {
+	.init_ipp = usb_init_ipp,
+	.init_common = usb_init_common_7211b0,
+	.init_xhci = usb_init_xhci,
+	.uninit_common = usb_uninit_common_7211b0,
+	.uninit_xhci = usb_uninit_xhci,
+	.get_dual_select = usb_get_dual_select,
+	.set_dual_select = usb_set_dual_select,
+};
+
+void brcm_usb_dvr_init_74110(struct brcm_usb_init_params *params)
+{
+	params->family_name = "74110";
+	params->ops = &bcm74110_ops;
+}
+
+void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params)
+{
+
+	pr_debug("%s\n", __func__);
+
+	params->family_name = "7216";
+	params->ops = &bcm7216_ops;
+}
+
+void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params)
+{
+
+	pr_debug("%s\n", __func__);
+
+	params->family_name = "7211";
+	params->ops = &bcm7211b0_ops;
+}

linux-7.2.3/drivers/phy/broadcom/phy-brcm-usb-init.h

@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2014-2017 Broadcom
+ */
+
+#ifndef _USB_BRCM_COMMON_INIT_H
+#define _USB_BRCM_COMMON_INIT_H
+
+#include <linux/regmap.h>
+
+#define USB_CTLR_MODE_HOST 0
+#define USB_CTLR_MODE_DEVICE 1
+#define USB_CTLR_MODE_DRD 2
+#define USB_CTLR_MODE_TYPEC_PD 3
+
+enum brcmusb_reg_sel {
+	BRCM_REGS_CTRL = 0,
+	BRCM_REGS_XHCI_EC,
+	BRCM_REGS_XHCI_GBL,
+	BRCM_REGS_USB_PHY,
+	BRCM_REGS_USB_MDIO,
+	BRCM_REGS_BDC_EC,
+	BRCM_REGS_MAX
+};
+
+#define USB_CTRL_REG(base, reg)	((void __iomem *)base + USB_CTRL_##reg)
+#define USB_XHCI_EC_REG(base, reg) ((void __iomem *)base + USB_XHCI_EC_##reg)
+#define USB_CTRL_MASK(reg, field) \
+	USB_CTRL_##reg##_##field##_MASK
+#define USB_CTRL_SET(base, reg, field)	\
+	brcm_usb_ctrl_set(USB_CTRL_REG(base, reg),	\
+			  USB_CTRL_##reg##_##field##_MASK)
+#define USB_CTRL_UNSET(base, reg, field)	\
+	brcm_usb_ctrl_unset(USB_CTRL_REG(base, reg),		\
+			    USB_CTRL_##reg##_##field##_MASK)
+
+#define USB_XHCI_GBL_REG(base, reg) ((void __iomem *)base + USB_XHCI_GBL_##reg)
+#define USB_XHCI_GBL_SET(base, reg, field) \
+	brcm_usb_ctrl_set(USB_XHCI_GBL_REG(base, reg), \
+			  USB_XHCI_GBL_##reg##_##field##_MASK)
+#define USB_XHCI_GBL_UNSET(base, reg, field) \
+	brcm_usb_ctrl_unset(USB_XHCI_GBL_REG(base, reg), \
+			    USB_XHCI_GBL_##reg##_##field##_MASK)
+
+struct  brcm_usb_init_params;
+
+struct brcm_usb_init_ops {
+	void (*init_ipp)(struct brcm_usb_init_params *params);
+	void (*init_common)(struct brcm_usb_init_params *params);
+	void (*init_eohci)(struct brcm_usb_init_params *params);
+	void (*init_xhci)(struct brcm_usb_init_params *params);
+	void (*uninit_common)(struct brcm_usb_init_params *params);
+	void (*uninit_eohci)(struct brcm_usb_init_params *params);
+	void (*uninit_xhci)(struct brcm_usb_init_params *params);
+	int  (*get_dual_select)(struct brcm_usb_init_params *params);
+	void (*set_dual_select)(struct brcm_usb_init_params *params);
+};
+
+struct  brcm_usb_init_params {
+	void __iomem *regs[BRCM_REGS_MAX];
+	int ioc;
+	int ipp;
+	int supported_port_modes;
+	int port_mode;
+	u32 family_id;
+	u32 product_id;
+	int selected_family;
+	const char *family_name;
+	const u32 *usb_reg_bits_map;
+	const struct brcm_usb_init_ops *ops;
+	struct regmap *syscon_piarbctl;
+	bool wake_enabled;
+};
+
+void brcm_usb_dvr_init_74110(struct brcm_usb_init_params *params);
+void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params);
+void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params);
+void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params);
+void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params);
+
+static inline u32 brcm_usb_readl(void __iomem *addr)
+{
+	/*
+	 * MIPS endianness is configured by boot strap, which also reverses all
+	 * bus endianness (i.e., big-endian CPU + big endian bus ==> native
+	 * endian I/O).
+	 *
+	 * Other architectures (e.g., ARM) either do not support big endian, or
+	 * else leave I/O in little endian mode.
+	 */
+	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+		return __raw_readl(addr);
+	else
+		return readl_relaxed(addr);
+}
+
+static inline void brcm_usb_writel(u32 val, void __iomem *addr)
+{
+	/* See brcmnand_readl() comments */
+	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+		__raw_writel(val, addr);
+	else
+		writel_relaxed(val, addr);
+}
+
+static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask)
+{
+	brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg);
+};
+
+static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask)
+{
+	brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg);
+};
+
+static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->init_ipp)
+		ini->ops->init_ipp(ini);
+}
+
+static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->init_common)
+		ini->ops->init_common(ini);
+}
+
+static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->init_eohci)
+		ini->ops->init_eohci(ini);
+}
+
+static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->init_xhci)
+		ini->ops->init_xhci(ini);
+}
+
+static inline void brcm_usb_uninit_common(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->uninit_common)
+		ini->ops->uninit_common(ini);
+}
+
+static inline void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->uninit_eohci)
+		ini->ops->uninit_eohci(ini);
+}
+
+static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->uninit_xhci)
+		ini->ops->uninit_xhci(ini);
+}
+
+static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->get_dual_select)
+		return ini->ops->get_dual_select(ini);
+	return 0;
+}
+
+static inline void brcm_usb_set_dual_select(struct brcm_usb_init_params *ini)
+{
+	if (ini->ops->set_dual_select)
+		ini->ops->set_dual_select(ini);
+}
+
+#endif /* _USB_BRCM_COMMON_INIT_H */

linux-7.2.3/drivers/phy/broadcom/phy-brcm-usb.c

@@ -0,0 +1,696 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * phy-brcm-usb.c - Broadcom USB Phy Driver
+ *
+ * Copyright (C) 2015-2017 Broadcom
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/soc/brcmstb/brcmstb.h>
+#include <dt-bindings/phy/phy.h>
+#include <linux/mfd/syscon.h>
+#include <linux/suspend.h>
+
+#include "phy-brcm-usb-init.h"
+
+static DEFINE_MUTEX(sysfs_lock);
+
+enum brcm_usb_phy_id {
+	BRCM_USB_PHY_2_0 = 0,
+	BRCM_USB_PHY_3_0,
+	BRCM_USB_PHY_ID_MAX
+};
+
+struct value_to_name_map {
+	int value;
+	const char *name;
+};
+
+struct match_chip_info {
+	void (*init_func)(struct brcm_usb_init_params *params);
+	u8 required_regs[BRCM_REGS_MAX + 1];
+	u8 optional_reg;
+};
+
+static const struct value_to_name_map brcm_dr_mode_to_name[] = {
+	{ USB_CTLR_MODE_HOST, "host" },
+	{ USB_CTLR_MODE_DEVICE, "peripheral" },
+	{ USB_CTLR_MODE_DRD, "drd" },
+	{ USB_CTLR_MODE_TYPEC_PD, "typec-pd" }
+};
+
+static const struct value_to_name_map brcm_dual_mode_to_name[] = {
+	{ 0, "host" },
+	{ 1, "device" },
+	{ 2, "auto" },
+};
+
+struct brcm_usb_phy {
+	struct phy *phy;
+	unsigned int id;
+	bool inited;
+};
+
+struct brcm_usb_phy_data {
+	struct  brcm_usb_init_params ini;
+	bool			has_eohci;
+	bool			has_xhci;
+	struct clk		*usb_20_clk;
+	struct clk		*usb_30_clk;
+	struct clk		*suspend_clk;
+	struct mutex		mutex;	/* serialize phy init */
+	int			init_count;
+	int			wake_irq;
+	struct brcm_usb_phy	phys[BRCM_USB_PHY_ID_MAX];
+	struct notifier_block	pm_notifier;
+	bool			pm_active;
+};
+
+static s8 *node_reg_names[BRCM_REGS_MAX] = {
+	"crtl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
+};
+
+static int brcm_pm_notifier(struct notifier_block *notifier,
+			    unsigned long pm_event,
+			    void *unused)
+{
+	struct brcm_usb_phy_data *priv =
+		container_of(notifier, struct brcm_usb_phy_data, pm_notifier);
+
+	switch (pm_event) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		priv->pm_active = true;
+		break;
+	case PM_POST_RESTORE:
+	case PM_POST_HIBERNATION:
+	case PM_POST_SUSPEND:
+		priv->pm_active = false;
+		break;
+	}
+	return NOTIFY_DONE;
+}
+
+static irqreturn_t brcm_usb_phy_wake_isr(int irq, void *dev_id)
+{
+	struct device *dev = dev_id;
+
+	pm_wakeup_event(dev, 0);
+
+	return IRQ_HANDLED;
+}
+
+static int brcm_usb_phy_init(struct phy *gphy)
+{
+	struct brcm_usb_phy *phy = phy_get_drvdata(gphy);
+	struct brcm_usb_phy_data *priv =
+		container_of(phy, struct brcm_usb_phy_data, phys[phy->id]);
+
+	if (priv->pm_active)
+		return 0;
+
+	/*
+	 * Use a lock to make sure a second caller waits until
+	 * the base phy is inited before using it.
+	 */
+	mutex_lock(&priv->mutex);
+	if (priv->init_count++ == 0) {
+		clk_prepare_enable(priv->usb_20_clk);
+		clk_prepare_enable(priv->usb_30_clk);
+		clk_prepare_enable(priv->suspend_clk);
+		brcm_usb_init_common(&priv->ini);
+	}
+	mutex_unlock(&priv->mutex);
+	if (phy->id == BRCM_USB_PHY_2_0)
+		brcm_usb_init_eohci(&priv->ini);
+	else if (phy->id == BRCM_USB_PHY_3_0)
+		brcm_usb_init_xhci(&priv->ini);
+	phy->inited = true;
+	dev_dbg(&gphy->dev, "INIT, id: %d, total: %d\n", phy->id,
+		priv->init_count);
+
+	return 0;
+}
+
+static int brcm_usb_phy_exit(struct phy *gphy)
+{
+	struct brcm_usb_phy *phy = phy_get_drvdata(gphy);
+	struct brcm_usb_phy_data *priv =
+		container_of(phy, struct brcm_usb_phy_data, phys[phy->id]);
+
+	if (priv->pm_active)
+		return 0;
+
+	dev_dbg(&gphy->dev, "EXIT\n");
+	if (phy->id == BRCM_USB_PHY_2_0)
+		brcm_usb_uninit_eohci(&priv->ini);
+	if (phy->id == BRCM_USB_PHY_3_0)
+		brcm_usb_uninit_xhci(&priv->ini);
+
+	/* If both xhci and eohci are gone, reset everything else */
+	mutex_lock(&priv->mutex);
+	if (--priv->init_count == 0) {
+		brcm_usb_uninit_common(&priv->ini);
+		clk_disable_unprepare(priv->usb_20_clk);
+		clk_disable_unprepare(priv->usb_30_clk);
+		clk_disable_unprepare(priv->suspend_clk);
+	}
+	mutex_unlock(&priv->mutex);
+	phy->inited = false;
+	return 0;
+}
+
+static const struct phy_ops brcm_usb_phy_ops = {
+	.init		= brcm_usb_phy_init,
+	.exit		= brcm_usb_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static struct phy *brcm_usb_phy_xlate(struct device *dev,
+				      const struct of_phandle_args *args)
+{
+	struct brcm_usb_phy_data *data = dev_get_drvdata(dev);
+
+	/*
+	 * values 0 and 1 are for backward compatibility with
+	 * device tree nodes from older bootloaders.
+	 */
+	switch (args->args[0]) {
+	case 0:
+	case PHY_TYPE_USB2:
+		if (data->phys[BRCM_USB_PHY_2_0].phy)
+			return data->phys[BRCM_USB_PHY_2_0].phy;
+		dev_warn(dev, "Error, 2.0 Phy not found\n");
+		break;
+	case 1:
+	case PHY_TYPE_USB3:
+		if (data->phys[BRCM_USB_PHY_3_0].phy)
+			return data->phys[BRCM_USB_PHY_3_0].phy;
+		dev_warn(dev, "Error, 3.0 Phy not found\n");
+		break;
+	}
+	return ERR_PTR(-ENODEV);
+}
+
+static int name_to_value(const struct value_to_name_map *table, int count,
+			 const char *name, int *value)
+{
+	int x;
+
+	*value = 0;
+	for (x = 0; x < count; x++) {
+		if (sysfs_streq(name, table[x].name)) {
+			*value = x;
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+static const char *value_to_name(const struct value_to_name_map *table, int count,
+				 int value)
+{
+	if (value >= count)
+		return "unknown";
+	return table[value].name;
+}
+
+static ssize_t dr_mode_show(struct device *dev,
+			    struct device_attribute *attr,
+			    char *buf)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n",
+		value_to_name(&brcm_dr_mode_to_name[0],
+			      ARRAY_SIZE(brcm_dr_mode_to_name),
+			      priv->ini.supported_port_modes));
+}
+static DEVICE_ATTR_RO(dr_mode);
+
+static ssize_t dual_select_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t len)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+	int value;
+	int res;
+
+	mutex_lock(&sysfs_lock);
+	res = name_to_value(&brcm_dual_mode_to_name[0],
+			    ARRAY_SIZE(brcm_dual_mode_to_name), buf, &value);
+	if (!res) {
+		priv->ini.port_mode = value;
+		brcm_usb_set_dual_select(&priv->ini);
+		res = len;
+	}
+	mutex_unlock(&sysfs_lock);
+	return res;
+}
+
+static ssize_t dual_select_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+	int value;
+
+	mutex_lock(&sysfs_lock);
+	value = brcm_usb_get_dual_select(&priv->ini);
+	mutex_unlock(&sysfs_lock);
+	return sprintf(buf, "%s\n",
+		value_to_name(&brcm_dual_mode_to_name[0],
+			      ARRAY_SIZE(brcm_dual_mode_to_name),
+			      value));
+}
+static DEVICE_ATTR_RW(dual_select);
+
+static struct attribute *brcm_usb_phy_attrs[] = {
+	&dev_attr_dr_mode.attr,
+	&dev_attr_dual_select.attr,
+	NULL
+};
+
+static const struct attribute_group brcm_usb_phy_group = {
+	.attrs = brcm_usb_phy_attrs,
+};
+
+static const struct match_chip_info chip_info_74110 = {
+	.init_func = &brcm_usb_dvr_init_74110,
+	.required_regs = {
+		BRCM_REGS_CTRL,
+		BRCM_REGS_XHCI_EC,
+		BRCM_REGS_XHCI_GBL,
+		-1,
+	},
+};
+
+static const struct match_chip_info chip_info_4908 = {
+	.init_func = &brcm_usb_dvr_init_4908,
+	.required_regs = {
+		BRCM_REGS_CTRL,
+		BRCM_REGS_XHCI_EC,
+		-1,
+	},
+};
+
+static const struct match_chip_info chip_info_7216 = {
+	.init_func = &brcm_usb_dvr_init_7216,
+	.required_regs = {
+		BRCM_REGS_CTRL,
+		BRCM_REGS_XHCI_EC,
+		BRCM_REGS_XHCI_GBL,
+		-1,
+	},
+};
+
+static const struct match_chip_info chip_info_7211b0 = {
+	.init_func = &brcm_usb_dvr_init_7211b0,
+	.required_regs = {
+		BRCM_REGS_CTRL,
+		BRCM_REGS_XHCI_EC,
+		BRCM_REGS_XHCI_GBL,
+		BRCM_REGS_USB_PHY,
+		BRCM_REGS_USB_MDIO,
+		-1,
+	},
+	.optional_reg = BRCM_REGS_BDC_EC,
+};
+
+static const struct match_chip_info chip_info_7445 = {
+	.init_func = &brcm_usb_dvr_init_7445,
+	.required_regs = {
+		BRCM_REGS_CTRL,
+		BRCM_REGS_XHCI_EC,
+		-1,
+	},
+};
+
+static const struct of_device_id brcm_usb_dt_ids[] = {
+	{
+		.compatible = "brcm,bcm74110-usb-phy",
+		.data = &chip_info_74110,
+	},
+	{
+		.compatible = "brcm,bcm4908-usb-phy",
+		.data = &chip_info_4908,
+	},
+	{
+		.compatible = "brcm,bcm7216-usb-phy",
+		.data = &chip_info_7216,
+	},
+	{
+		.compatible = "brcm,bcm7211-usb-phy",
+		.data = &chip_info_7211b0,
+	},
+	{
+		.compatible = "brcm,brcmstb-usb-phy",
+		.data = &chip_info_7445,
+	},
+	{ /* sentinel */ }
+};
+
+static int brcm_usb_get_regs(struct platform_device *pdev,
+			     enum brcmusb_reg_sel regs,
+			     struct  brcm_usb_init_params *ini,
+			     bool optional)
+{
+	struct resource *res;
+
+	/* Older DT nodes have ctrl and optional xhci_ec by index only */
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+						node_reg_names[regs]);
+	if (res == NULL) {
+		if (regs == BRCM_REGS_CTRL) {
+			res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		} else if (regs == BRCM_REGS_XHCI_EC) {
+			res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+			/* XHCI_EC registers are optional */
+			if (res == NULL)
+				return 0;
+		}
+		if (res == NULL) {
+			if (optional) {
+				dev_dbg(&pdev->dev,
+					"Optional reg %s not found\n",
+					node_reg_names[regs]);
+				return 0;
+			}
+			dev_err(&pdev->dev, "can't get %s base addr\n",
+				node_reg_names[regs]);
+			return 1;
+		}
+	}
+	ini->regs[regs] = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ini->regs[regs])) {
+		dev_err(&pdev->dev, "can't map %s register space\n",
+			node_reg_names[regs]);
+		return 1;
+	}
+	return 0;
+}
+
+static int brcm_usb_phy_dvr_init(struct platform_device *pdev,
+				 struct brcm_usb_phy_data *priv,
+				 struct device_node *dn)
+{
+	struct device *dev = &pdev->dev;
+	struct phy *gphy = NULL;
+	int err;
+
+	priv->usb_20_clk = of_clk_get_by_name(dn, "sw_usb");
+	if (IS_ERR(priv->usb_20_clk)) {
+		if (PTR_ERR(priv->usb_20_clk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		dev_info(dev, "Clock not found in Device Tree\n");
+		priv->usb_20_clk = NULL;
+	}
+	err = clk_prepare_enable(priv->usb_20_clk);
+	if (err)
+		return err;
+
+	if (priv->has_eohci) {
+		gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops);
+		if (IS_ERR(gphy)) {
+			dev_err(dev, "failed to create EHCI/OHCI PHY\n");
+			return PTR_ERR(gphy);
+		}
+		priv->phys[BRCM_USB_PHY_2_0].phy = gphy;
+		priv->phys[BRCM_USB_PHY_2_0].id = BRCM_USB_PHY_2_0;
+		phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_2_0]);
+	}
+
+	if (priv->has_xhci) {
+		gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops);
+		if (IS_ERR(gphy)) {
+			dev_err(dev, "failed to create XHCI PHY\n");
+			return PTR_ERR(gphy);
+		}
+		priv->phys[BRCM_USB_PHY_3_0].phy = gphy;
+		priv->phys[BRCM_USB_PHY_3_0].id = BRCM_USB_PHY_3_0;
+		phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_3_0]);
+
+		priv->usb_30_clk = of_clk_get_by_name(dn, "sw_usb3");
+		if (IS_ERR(priv->usb_30_clk)) {
+			if (PTR_ERR(priv->usb_30_clk) == -EPROBE_DEFER)
+				return -EPROBE_DEFER;
+			dev_info(dev,
+				 "USB3.0 clock not found in Device Tree\n");
+			priv->usb_30_clk = NULL;
+		}
+		err = clk_prepare_enable(priv->usb_30_clk);
+		if (err)
+			return err;
+	}
+
+	priv->suspend_clk = clk_get(dev, "usb0_freerun");
+	if (IS_ERR(priv->suspend_clk)) {
+		if (PTR_ERR(priv->suspend_clk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		dev_err(dev, "Suspend Clock not found in Device Tree\n");
+		priv->suspend_clk = NULL;
+	}
+
+	priv->wake_irq = platform_get_irq_byname_optional(pdev, "wake");
+	if (priv->wake_irq < 0)
+		priv->wake_irq = platform_get_irq_byname_optional(pdev, "wakeup");
+	if (priv->wake_irq >= 0) {
+		err = devm_request_irq(dev, priv->wake_irq,
+				       brcm_usb_phy_wake_isr, 0,
+				       dev_name(dev), dev);
+		if (err < 0)
+			return err;
+		device_set_wakeup_capable(dev, 1);
+	} else {
+		dev_info(dev,
+			 "Wake interrupt missing, system wake not supported\n");
+	}
+
+	return 0;
+}
+
+static int brcm_usb_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct brcm_usb_phy_data *priv;
+	struct phy_provider *phy_provider;
+	struct device_node *dn = pdev->dev.of_node;
+	int err;
+	const char *mode;
+	const struct match_chip_info *info;
+	struct regmap *rmap;
+	int x;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, priv);
+
+	priv->ini.family_id = brcmstb_get_family_id();
+	priv->ini.product_id = brcmstb_get_product_id();
+
+	info = of_device_get_match_data(&pdev->dev);
+	if (!info)
+		return -ENOENT;
+
+	info->init_func(&priv->ini);
+
+	dev_dbg(dev, "Best mapping table is for %s\n",
+		priv->ini.family_name);
+
+	of_property_read_u32(dn, "brcm,ipp", &priv->ini.ipp);
+	of_property_read_u32(dn, "brcm,ioc", &priv->ini.ioc);
+
+	priv->ini.supported_port_modes = USB_CTLR_MODE_HOST;
+	err = of_property_read_string(dn, "dr_mode", &mode);
+	if (err == 0) {
+		name_to_value(&brcm_dr_mode_to_name[0],
+			      ARRAY_SIZE(brcm_dr_mode_to_name),
+			mode, &priv->ini.supported_port_modes);
+	}
+	/* Default port_mode to supported port_modes */
+	priv->ini.port_mode = priv->ini.supported_port_modes;
+
+	if (of_property_read_bool(dn, "brcm,has-xhci"))
+		priv->has_xhci = true;
+	if (of_property_read_bool(dn, "brcm,has-eohci"))
+		priv->has_eohci = true;
+
+	for (x = 0; x < BRCM_REGS_MAX; x++) {
+		if (info->required_regs[x] >= BRCM_REGS_MAX)
+			break;
+
+		err = brcm_usb_get_regs(pdev, info->required_regs[x],
+					&priv->ini, false);
+		if (err)
+			return -EINVAL;
+	}
+	if (info->optional_reg) {
+		err = brcm_usb_get_regs(pdev, info->optional_reg,
+					&priv->ini, true);
+		if (err)
+			return -EINVAL;
+	}
+
+	err = brcm_usb_phy_dvr_init(pdev, priv, dn);
+	if (err)
+		return err;
+
+	priv->pm_notifier.notifier_call = brcm_pm_notifier;
+	register_pm_notifier(&priv->pm_notifier);
+
+	mutex_init(&priv->mutex);
+
+	/* make sure invert settings are correct */
+	brcm_usb_init_ipp(&priv->ini);
+
+	/*
+	 * Create sysfs entries for mode.
+	 * Remove "dual_select" attribute if not in dual mode
+	 */
+	if (priv->ini.supported_port_modes != USB_CTLR_MODE_DRD)
+		brcm_usb_phy_attrs[1] = NULL;
+	err = sysfs_create_group(&dev->kobj, &brcm_usb_phy_group);
+	if (err)
+		dev_warn(dev, "Error creating sysfs attributes\n");
+
+	/* Get piarbctl syscon if it exists */
+	rmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+						 "syscon-piarbctl");
+	if (IS_ERR(rmap))
+		rmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+						       "brcm,syscon-piarbctl");
+	if (!IS_ERR(rmap))
+		priv->ini.syscon_piarbctl = rmap;
+
+	/* start with everything off */
+	if (priv->has_xhci)
+		brcm_usb_uninit_xhci(&priv->ini);
+	if (priv->has_eohci)
+		brcm_usb_uninit_eohci(&priv->ini);
+	brcm_usb_uninit_common(&priv->ini);
+	clk_disable_unprepare(priv->usb_20_clk);
+	clk_disable_unprepare(priv->usb_30_clk);
+
+	phy_provider = devm_of_phy_provider_register(dev, brcm_usb_phy_xlate);
+
+	return PTR_ERR_OR_ZERO(phy_provider);
+}
+
+static void brcm_usb_phy_remove(struct platform_device *pdev)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(&pdev->dev);
+
+	sysfs_remove_group(&pdev->dev.kobj, &brcm_usb_phy_group);
+	unregister_pm_notifier(&priv->pm_notifier);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int brcm_usb_phy_suspend(struct device *dev)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+
+	if (priv->init_count) {
+		dev_dbg(dev, "SUSPEND\n");
+		priv->ini.wake_enabled = device_may_wakeup(dev);
+		if (priv->phys[BRCM_USB_PHY_3_0].inited)
+			brcm_usb_uninit_xhci(&priv->ini);
+		if (priv->phys[BRCM_USB_PHY_2_0].inited)
+			brcm_usb_uninit_eohci(&priv->ini);
+		brcm_usb_uninit_common(&priv->ini);
+
+		/*
+		 * Handle the clocks unless needed for wake. This has
+		 * to work for both older XHCI->3.0-clks, EOHCI->2.0-clks
+		 * and newer XHCI->2.0-clks/3.0-clks.
+		 */
+
+		if (!priv->ini.wake_enabled) {
+			if (priv->phys[BRCM_USB_PHY_3_0].inited)
+				clk_disable_unprepare(priv->usb_30_clk);
+			if (priv->phys[BRCM_USB_PHY_2_0].inited ||
+			    !priv->has_eohci)
+				clk_disable_unprepare(priv->usb_20_clk);
+		}
+		if (priv->wake_irq >= 0)
+			enable_irq_wake(priv->wake_irq);
+	}
+	return 0;
+}
+
+static int brcm_usb_phy_resume(struct device *dev)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+
+	if (!priv->ini.wake_enabled) {
+		clk_prepare_enable(priv->usb_20_clk);
+		clk_prepare_enable(priv->usb_30_clk);
+	}
+	brcm_usb_init_ipp(&priv->ini);
+
+	/*
+	 * Initialize anything that was previously initialized.
+	 * Uninitialize anything that wasn't previously initialized.
+	 */
+	if (priv->init_count) {
+		dev_dbg(dev, "RESUME\n");
+		if (priv->wake_irq >= 0)
+			disable_irq_wake(priv->wake_irq);
+		brcm_usb_init_common(&priv->ini);
+		if (priv->phys[BRCM_USB_PHY_2_0].inited) {
+			brcm_usb_init_eohci(&priv->ini);
+		} else if (priv->has_eohci) {
+			brcm_usb_uninit_eohci(&priv->ini);
+			clk_disable_unprepare(priv->usb_20_clk);
+		}
+		if (priv->phys[BRCM_USB_PHY_3_0].inited) {
+			brcm_usb_init_xhci(&priv->ini);
+		} else if (priv->has_xhci) {
+			brcm_usb_uninit_xhci(&priv->ini);
+			clk_disable_unprepare(priv->usb_30_clk);
+			if (!priv->has_eohci)
+				clk_disable_unprepare(priv->usb_20_clk);
+		}
+	} else {
+		if (priv->has_xhci)
+			brcm_usb_uninit_xhci(&priv->ini);
+		if (priv->has_eohci)
+			brcm_usb_uninit_eohci(&priv->ini);
+		brcm_usb_uninit_common(&priv->ini);
+		clk_disable_unprepare(priv->usb_20_clk);
+		clk_disable_unprepare(priv->usb_30_clk);
+	}
+	priv->ini.wake_enabled = false;
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops brcm_usb_phy_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(brcm_usb_phy_suspend, brcm_usb_phy_resume)
+};
+
+MODULE_DEVICE_TABLE(of, brcm_usb_dt_ids);
+
+static struct platform_driver brcm_usb_driver = {
+	.probe		= brcm_usb_phy_probe,
+	.remove		= brcm_usb_phy_remove,
+	.driver		= {
+		.name	= "brcmstb-usb-phy",
+		.pm = &brcm_usb_phy_pm_ops,
+		.of_match_table = brcm_usb_dt_ids,
+	},
+};
+
+module_platform_driver(brcm_usb_driver);
+
+MODULE_AUTHOR("Al Cooper <acooper@broadcom.com>");
+MODULE_DESCRIPTION("BRCM USB PHY driver");
+MODULE_LICENSE("GPL v2");