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linux-7.2.3/drivers/clk/ux500/Makefile

@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for ux500 clocks
+#
+
+# Clock types
+obj-y += clk-prcc.o
+obj-y += clk-prcmu.o
+obj-y += clk-sysctrl.o
+
+# Reset control
+obj-y += reset-prcc.o
+
+# Clock definitions
+obj-y += u8500_of_clk.o
+
+# ABX500 clock driver
+obj-y += abx500-clk.o

linux-7.2.3/drivers/clk/ux500/abx500-clk.c

@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * abx500 clock implementation for ux500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ */
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-sysctrl.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <dt-bindings/clock/ste-ab8500.h>
+#include "clk.h"
+
+#define AB8500_NUM_CLKS 6
+
+static struct clk *ab8500_clks[AB8500_NUM_CLKS];
+static struct clk_onecell_data ab8500_clk_data;
+
+/* Clock definitions for ab8500 */
+static int ab8500_reg_clks(struct device *dev)
+{
+	int ret;
+	struct clk *clk;
+	struct device_node *np = dev->of_node;
+	const char *intclk_parents[] = {"ab8500_sysclk", "ulpclk"};
+	u16 intclk_reg_sel[] = {0 , AB8500_SYSULPCLKCTRL1};
+	u8 intclk_reg_mask[] = {0 , AB8500_SYSULPCLKCTRL1_SYSULPCLKINTSEL_MASK};
+	u8 intclk_reg_bits[] = {
+		0 ,
+		(1 << AB8500_SYSULPCLKCTRL1_SYSULPCLKINTSEL_SHIFT)
+	};
+
+	/* Enable SWAT */
+	ret = ab8500_sysctrl_set(AB8500_SWATCTRL, AB8500_SWATCTRL_SWATENABLE);
+	if (ret)
+		return ret;
+
+	/* ab8500_sysclk2 */
+	clk = clk_reg_sysctrl_gate(dev , "ab8500_sysclk2", "ab8500_sysclk",
+		AB8500_SYSULPCLKCTRL1, AB8500_SYSULPCLKCTRL1_SYSCLKBUF2REQ,
+		AB8500_SYSULPCLKCTRL1_SYSCLKBUF2REQ, 0, 0);
+	ab8500_clks[AB8500_SYSCLK_BUF2] = clk;
+
+	/* ab8500_sysclk3 */
+	clk = clk_reg_sysctrl_gate(dev , "ab8500_sysclk3", "ab8500_sysclk",
+		AB8500_SYSULPCLKCTRL1, AB8500_SYSULPCLKCTRL1_SYSCLKBUF3REQ,
+		AB8500_SYSULPCLKCTRL1_SYSCLKBUF3REQ, 0, 0);
+	ab8500_clks[AB8500_SYSCLK_BUF3] = clk;
+
+	/* ab8500_sysclk4 */
+	clk = clk_reg_sysctrl_gate(dev , "ab8500_sysclk4", "ab8500_sysclk",
+		AB8500_SYSULPCLKCTRL1, AB8500_SYSULPCLKCTRL1_SYSCLKBUF4REQ,
+		AB8500_SYSULPCLKCTRL1_SYSCLKBUF4REQ, 0, 0);
+	ab8500_clks[AB8500_SYSCLK_BUF4] = clk;
+
+	/* ab_ulpclk */
+	clk = clk_reg_sysctrl_gate_fixed_rate(dev, "ulpclk", NULL,
+		AB8500_SYSULPCLKCTRL1, AB8500_SYSULPCLKCTRL1_ULPCLKREQ,
+		AB8500_SYSULPCLKCTRL1_ULPCLKREQ,
+		38400000, 9000, 0);
+	ab8500_clks[AB8500_SYSCLK_ULP] = clk;
+
+	/* ab8500_intclk */
+	clk = clk_reg_sysctrl_set_parent(dev , "intclk", intclk_parents, 2,
+		intclk_reg_sel, intclk_reg_mask, intclk_reg_bits, 0);
+	ab8500_clks[AB8500_SYSCLK_INT] = clk;
+
+	/* ab8500_audioclk */
+	clk = clk_reg_sysctrl_gate(dev , "audioclk", "intclk",
+		AB8500_SYSULPCLKCTRL1, AB8500_SYSULPCLKCTRL1_AUDIOCLKENA,
+		AB8500_SYSULPCLKCTRL1_AUDIOCLKENA, 0, 0);
+	ab8500_clks[AB8500_SYSCLK_AUDIO] = clk;
+
+	ab8500_clk_data.clks = ab8500_clks;
+	ab8500_clk_data.clk_num = ARRAY_SIZE(ab8500_clks);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &ab8500_clk_data);
+
+	dev_info(dev, "registered clocks for ab850x\n");
+
+	return 0;
+}
+
+static int abx500_clk_probe(struct platform_device *pdev)
+{
+	struct ab8500 *parent = dev_get_drvdata(pdev->dev.parent);
+	int ret;
+
+	if (is_ab8500(parent) || is_ab8505(parent)) {
+		ret = ab8500_reg_clks(&pdev->dev);
+	} else {
+		dev_err(&pdev->dev, "non supported plf id\n");
+		return -ENODEV;
+	}
+
+	return ret;
+}
+
+static const struct of_device_id abx500_clk_match[] = {
+	{ .compatible = "stericsson,ab8500-clk", },
+	{}
+};
+
+static struct platform_driver abx500_clk_driver = {
+	.driver = {
+		.name = "abx500-clk",
+		.of_match_table = abx500_clk_match,
+	},
+	.probe	= abx500_clk_probe,
+};
+
+static int __init abx500_clk_init(void)
+{
+	return platform_driver_register(&abx500_clk_driver);
+}
+arch_initcall(abx500_clk_init);
+
+MODULE_AUTHOR("Ulf Hansson <ulf.hansson@linaro.org");
+MODULE_DESCRIPTION("ABX500 clk driver");
+MODULE_LICENSE("GPL v2");

linux-7.2.3/drivers/clk/ux500/clk-prcc.c

@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PRCC clock implementation for ux500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/types.h>
+
+#include "clk.h"
+
+#define PRCC_PCKEN			0x000
+#define PRCC_PCKDIS			0x004
+#define PRCC_KCKEN			0x008
+#define PRCC_KCKDIS			0x00C
+#define PRCC_PCKSR			0x010
+#define PRCC_KCKSR			0x014
+
+#define to_clk_prcc(_hw) container_of(_hw, struct clk_prcc, hw)
+
+struct clk_prcc {
+	struct clk_hw hw;
+	void __iomem *base;
+	u32 cg_sel;
+	int is_enabled;
+};
+
+/* PRCC clock operations. */
+
+static int clk_prcc_pclk_enable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_PCKEN));
+	while (!(readl(clk->base + PRCC_PCKSR) & clk->cg_sel))
+		cpu_relax();
+
+	clk->is_enabled = 1;
+	return 0;
+}
+
+static void clk_prcc_pclk_disable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_PCKDIS));
+	clk->is_enabled = 0;
+}
+
+static int clk_prcc_kclk_enable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_KCKEN));
+	while (!(readl(clk->base + PRCC_KCKSR) & clk->cg_sel))
+		cpu_relax();
+
+	clk->is_enabled = 1;
+	return 0;
+}
+
+static void clk_prcc_kclk_disable(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+
+	writel(clk->cg_sel, (clk->base + PRCC_KCKDIS));
+	clk->is_enabled = 0;
+}
+
+static int clk_prcc_is_enabled(struct clk_hw *hw)
+{
+	struct clk_prcc *clk = to_clk_prcc(hw);
+	return clk->is_enabled;
+}
+
+static const struct clk_ops clk_prcc_pclk_ops = {
+	.enable = clk_prcc_pclk_enable,
+	.disable = clk_prcc_pclk_disable,
+	.is_enabled = clk_prcc_is_enabled,
+};
+
+static const struct clk_ops clk_prcc_kclk_ops = {
+	.enable = clk_prcc_kclk_enable,
+	.disable = clk_prcc_kclk_disable,
+	.is_enabled = clk_prcc_is_enabled,
+};
+
+static struct clk *clk_reg_prcc(const char *name,
+				const char *parent_name,
+				resource_size_t phy_base,
+				u32 cg_sel,
+				unsigned long flags,
+				const struct clk_ops *clk_prcc_ops)
+{
+	struct clk_prcc *clk;
+	struct clk_init_data clk_prcc_init;
+	struct clk *clk_reg;
+
+	if (!name) {
+		pr_err("clk_prcc: %s invalid arguments passed\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk = kzalloc_obj(*clk);
+	if (!clk)
+		return ERR_PTR(-ENOMEM);
+
+	clk->base = ioremap(phy_base, SZ_4K);
+	if (!clk->base)
+		goto free_clk;
+
+	clk->cg_sel = cg_sel;
+	clk->is_enabled = 1;
+
+	clk_prcc_init.name = name;
+	clk_prcc_init.ops = clk_prcc_ops;
+	clk_prcc_init.flags = flags;
+	clk_prcc_init.parent_names = (parent_name ? &parent_name : NULL);
+	clk_prcc_init.num_parents = (parent_name ? 1 : 0);
+	clk->hw.init = &clk_prcc_init;
+
+	clk_reg = clk_register(NULL, &clk->hw);
+	if (IS_ERR_OR_NULL(clk_reg))
+		goto unmap_clk;
+
+	return clk_reg;
+
+unmap_clk:
+	iounmap(clk->base);
+free_clk:
+	kfree(clk);
+	pr_err("clk_prcc: %s failed to register clk\n", __func__);
+	return ERR_PTR(-ENOMEM);
+}
+
+struct clk *clk_reg_prcc_pclk(const char *name,
+			      const char *parent_name,
+			      resource_size_t phy_base,
+			      u32 cg_sel,
+			      unsigned long flags)
+{
+	return clk_reg_prcc(name, parent_name, phy_base, cg_sel, flags,
+			&clk_prcc_pclk_ops);
+}
+
+struct clk *clk_reg_prcc_kclk(const char *name,
+			      const char *parent_name,
+			      resource_size_t phy_base,
+			      u32 cg_sel,
+			      unsigned long flags)
+{
+	return clk_reg_prcc(name, parent_name, phy_base, cg_sel, flags,
+			&clk_prcc_kclk_ops);
+}

linux-7.2.3/drivers/clk/ux500/clk-prcmu.c

@@ -0,0 +1,403 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PRCMU clock implementation for ux500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include "clk.h"
+
+#define to_clk_prcmu(_hw) container_of(_hw, struct clk_prcmu, hw)
+#define to_clk_prcmu_clkout(_hw) container_of(_hw, struct clk_prcmu_clkout, hw)
+
+struct clk_prcmu {
+	struct clk_hw hw;
+	u8 cg_sel;
+	int opp_requested;
+};
+
+struct clk_prcmu_clkout {
+	struct clk_hw hw;
+	u8 clkout_id;
+	u8 source;
+	u8 divider;
+};
+
+/* PRCMU clock operations. */
+
+static int clk_prcmu_prepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	return prcmu_request_clock(clk->cg_sel, true);
+}
+
+static void clk_prcmu_unprepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	if (prcmu_request_clock(clk->cg_sel, false))
+		pr_err("clk_prcmu: %s failed to disable %s.\n", __func__,
+		       clk_hw_get_name(hw));
+}
+
+static unsigned long clk_prcmu_recalc_rate(struct clk_hw *hw,
+					   unsigned long parent_rate)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return prcmu_clock_rate(clk->cg_sel);
+}
+
+static int clk_prcmu_determine_rate(struct clk_hw *hw,
+				    struct clk_rate_request *req)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	req->rate = prcmu_round_clock_rate(clk->cg_sel, req->rate);
+
+	return 0;
+}
+
+static int clk_prcmu_set_rate(struct clk_hw *hw, unsigned long rate,
+			      unsigned long parent_rate)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+	return prcmu_set_clock_rate(clk->cg_sel, rate);
+}
+
+static int clk_prcmu_opp_prepare(struct clk_hw *hw)
+{
+	int err;
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	if (!clk->opp_requested) {
+		err = prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP,
+						(char *)clk_hw_get_name(hw),
+						100);
+		if (err) {
+			pr_err("clk_prcmu: %s fail req APE OPP for %s.\n",
+				__func__, clk_hw_get_name(hw));
+			return err;
+		}
+		clk->opp_requested = 1;
+	}
+
+	err = prcmu_request_clock(clk->cg_sel, true);
+	if (err) {
+		prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP,
+					(char *)clk_hw_get_name(hw));
+		clk->opp_requested = 0;
+		return err;
+	}
+
+	return 0;
+}
+
+static void clk_prcmu_opp_unprepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	if (prcmu_request_clock(clk->cg_sel, false)) {
+		pr_err("clk_prcmu: %s failed to disable %s.\n", __func__,
+			clk_hw_get_name(hw));
+		return;
+	}
+
+	if (clk->opp_requested) {
+		prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP,
+					(char *)clk_hw_get_name(hw));
+		clk->opp_requested = 0;
+	}
+}
+
+static int clk_prcmu_opp_volt_prepare(struct clk_hw *hw)
+{
+	int err;
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	if (!clk->opp_requested) {
+		err = prcmu_request_ape_opp_100_voltage(true);
+		if (err) {
+			pr_err("clk_prcmu: %s fail req APE OPP VOLT for %s.\n",
+				__func__, clk_hw_get_name(hw));
+			return err;
+		}
+		clk->opp_requested = 1;
+	}
+
+	err = prcmu_request_clock(clk->cg_sel, true);
+	if (err) {
+		prcmu_request_ape_opp_100_voltage(false);
+		clk->opp_requested = 0;
+		return err;
+	}
+
+	return 0;
+}
+
+static void clk_prcmu_opp_volt_unprepare(struct clk_hw *hw)
+{
+	struct clk_prcmu *clk = to_clk_prcmu(hw);
+
+	if (prcmu_request_clock(clk->cg_sel, false)) {
+		pr_err("clk_prcmu: %s failed to disable %s.\n", __func__,
+			clk_hw_get_name(hw));
+		return;
+	}
+
+	if (clk->opp_requested) {
+		prcmu_request_ape_opp_100_voltage(false);
+		clk->opp_requested = 0;
+	}
+}
+
+static const struct clk_ops clk_prcmu_scalable_ops = {
+	.prepare = clk_prcmu_prepare,
+	.unprepare = clk_prcmu_unprepare,
+	.recalc_rate = clk_prcmu_recalc_rate,
+	.determine_rate = clk_prcmu_determine_rate,
+	.set_rate = clk_prcmu_set_rate,
+};
+
+static const struct clk_ops clk_prcmu_gate_ops = {
+	.prepare = clk_prcmu_prepare,
+	.unprepare = clk_prcmu_unprepare,
+	.recalc_rate = clk_prcmu_recalc_rate,
+};
+
+static const struct clk_ops clk_prcmu_scalable_rate_ops = {
+	.recalc_rate = clk_prcmu_recalc_rate,
+	.determine_rate = clk_prcmu_determine_rate,
+	.set_rate = clk_prcmu_set_rate,
+};
+
+static const struct clk_ops clk_prcmu_rate_ops = {
+	.recalc_rate = clk_prcmu_recalc_rate,
+};
+
+static const struct clk_ops clk_prcmu_opp_gate_ops = {
+	.prepare = clk_prcmu_opp_prepare,
+	.unprepare = clk_prcmu_opp_unprepare,
+	.recalc_rate = clk_prcmu_recalc_rate,
+};
+
+static const struct clk_ops clk_prcmu_opp_volt_scalable_ops = {
+	.prepare = clk_prcmu_opp_volt_prepare,
+	.unprepare = clk_prcmu_opp_volt_unprepare,
+	.recalc_rate = clk_prcmu_recalc_rate,
+	.determine_rate = clk_prcmu_determine_rate,
+	.set_rate = clk_prcmu_set_rate,
+};
+
+static struct clk_hw *clk_reg_prcmu(const char *name,
+				    const char *parent_name,
+				    u8 cg_sel,
+				    unsigned long rate,
+				    unsigned long flags,
+				    const struct clk_ops *clk_prcmu_ops)
+{
+	struct clk_prcmu *clk;
+	struct clk_init_data clk_prcmu_init;
+	int ret;
+
+	if (!name) {
+		pr_err("clk_prcmu: %s invalid arguments passed\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk = kzalloc_obj(*clk);
+	if (!clk)
+		return ERR_PTR(-ENOMEM);
+
+	clk->cg_sel = cg_sel;
+	clk->opp_requested = 0;
+	/* "rate" can be used for changing the initial frequency */
+	if (rate)
+		prcmu_set_clock_rate(cg_sel, rate);
+
+	clk_prcmu_init.name = name;
+	clk_prcmu_init.ops = clk_prcmu_ops;
+	clk_prcmu_init.flags = flags;
+	clk_prcmu_init.parent_names = (parent_name ? &parent_name : NULL);
+	clk_prcmu_init.num_parents = (parent_name ? 1 : 0);
+	clk->hw.init = &clk_prcmu_init;
+
+	ret = clk_hw_register(NULL, &clk->hw);
+	if (ret)
+		goto free_clk;
+
+	return &clk->hw;
+
+free_clk:
+	kfree(clk);
+	pr_err("clk_prcmu: %s failed to register clk\n", __func__);
+	return ERR_PTR(-ENOMEM);
+}
+
+struct clk_hw *clk_reg_prcmu_scalable(const char *name,
+				      const char *parent_name,
+				      u8 cg_sel,
+				      unsigned long rate,
+				      unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, rate, flags,
+			&clk_prcmu_scalable_ops);
+}
+
+struct clk_hw *clk_reg_prcmu_gate(const char *name,
+				  const char *parent_name,
+				  u8 cg_sel,
+				  unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, 0, flags,
+			&clk_prcmu_gate_ops);
+}
+
+struct clk_hw *clk_reg_prcmu_scalable_rate(const char *name,
+					   const char *parent_name,
+					   u8 cg_sel,
+					   unsigned long rate,
+					   unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, rate, flags,
+			&clk_prcmu_scalable_rate_ops);
+}
+
+struct clk_hw *clk_reg_prcmu_rate(const char *name,
+				  const char *parent_name,
+				  u8 cg_sel,
+				  unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, 0, flags,
+			&clk_prcmu_rate_ops);
+}
+
+struct clk_hw *clk_reg_prcmu_opp_gate(const char *name,
+				      const char *parent_name,
+				      u8 cg_sel,
+				      unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, 0, flags,
+			&clk_prcmu_opp_gate_ops);
+}
+
+struct clk_hw *clk_reg_prcmu_opp_volt_scalable(const char *name,
+					       const char *parent_name,
+					       u8 cg_sel,
+					       unsigned long rate,
+					       unsigned long flags)
+{
+	return clk_reg_prcmu(name, parent_name, cg_sel, rate, flags,
+			&clk_prcmu_opp_volt_scalable_ops);
+}
+
+/* The clkout (external) clock is special and need special ops */
+
+static int clk_prcmu_clkout_prepare(struct clk_hw *hw)
+{
+	struct clk_prcmu_clkout *clk = to_clk_prcmu_clkout(hw);
+
+	return prcmu_config_clkout(clk->clkout_id, clk->source, clk->divider);
+}
+
+static void clk_prcmu_clkout_unprepare(struct clk_hw *hw)
+{
+	struct clk_prcmu_clkout *clk = to_clk_prcmu_clkout(hw);
+	int ret;
+
+	/* The clkout clock is disabled by dividing by 0 */
+	ret = prcmu_config_clkout(clk->clkout_id, clk->source, 0);
+	if (ret)
+		pr_err("clk_prcmu: %s failed to disable %s\n", __func__,
+		       clk_hw_get_name(hw));
+}
+
+static unsigned long clk_prcmu_clkout_recalc_rate(struct clk_hw *hw,
+						  unsigned long parent_rate)
+{
+	struct clk_prcmu_clkout *clk = to_clk_prcmu_clkout(hw);
+
+	return (parent_rate / clk->divider);
+}
+
+static u8 clk_prcmu_clkout_get_parent(struct clk_hw *hw)
+{
+	struct clk_prcmu_clkout *clk = to_clk_prcmu_clkout(hw);
+
+	return clk->source;
+}
+
+static int clk_prcmu_clkout_set_parent(struct clk_hw *hw, u8 index)
+{
+	struct clk_prcmu_clkout *clk = to_clk_prcmu_clkout(hw);
+
+	clk->source = index;
+	/* Make sure the change reaches the hardware immediately */
+	if (clk_hw_is_prepared(hw))
+		return clk_prcmu_clkout_prepare(hw);
+	return 0;
+}
+
+static const struct clk_ops clk_prcmu_clkout_ops = {
+	.prepare = clk_prcmu_clkout_prepare,
+	.unprepare = clk_prcmu_clkout_unprepare,
+	.recalc_rate = clk_prcmu_clkout_recalc_rate,
+	.determine_rate = clk_hw_determine_rate_no_reparent,
+	.get_parent = clk_prcmu_clkout_get_parent,
+	.set_parent = clk_prcmu_clkout_set_parent,
+};
+
+struct clk_hw *clk_reg_prcmu_clkout(const char *name,
+				    const char * const *parent_names,
+				    int num_parents,
+				    u8 source, u8 divider)
+
+{
+	struct clk_prcmu_clkout *clk;
+	struct clk_init_data clk_prcmu_clkout_init;
+	u8 clkout_id;
+	int ret;
+
+	if (!name) {
+		pr_err("clk_prcmu_clkout: %s invalid arguments passed\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (!strcmp(name, "clkout1"))
+		clkout_id = 0;
+	else if (!strcmp(name, "clkout2"))
+		clkout_id = 1;
+	else {
+		pr_err("clk_prcmu_clkout: %s bad clock name\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk = kzalloc_obj(*clk);
+	if (!clk)
+		return ERR_PTR(-ENOMEM);
+
+	clk->clkout_id = clkout_id;
+	clk->source = source;
+	clk->divider = divider;
+
+	clk_prcmu_clkout_init.name = name;
+	clk_prcmu_clkout_init.ops = &clk_prcmu_clkout_ops;
+	clk_prcmu_clkout_init.flags = CLK_GET_RATE_NOCACHE;
+	clk_prcmu_clkout_init.parent_names = parent_names;
+	clk_prcmu_clkout_init.num_parents = num_parents;
+	clk->hw.init = &clk_prcmu_clkout_init;
+
+	ret = clk_hw_register(NULL, &clk->hw);
+	if (ret)
+		goto free_clkout;
+
+	return &clk->hw;
+free_clkout:
+	kfree(clk);
+	pr_err("clk_prcmu_clkout: %s failed to register clk\n", __func__);
+	return ERR_PTR(-ENOMEM);
+}

linux-7.2.3/drivers/clk/ux500/clk-sysctrl.c

@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Sysctrl clock implementation for ux500 platform.
+ *
+ * Copyright (C) 2013 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/mfd/abx500/ab8500-sysctrl.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include "clk.h"
+
+#define SYSCTRL_MAX_NUM_PARENTS 4
+
+#define to_clk_sysctrl(_hw) container_of(_hw, struct clk_sysctrl, hw)
+
+struct clk_sysctrl {
+	struct clk_hw hw;
+	struct device *dev;
+	u8 parent_index;
+	u16 reg_sel[SYSCTRL_MAX_NUM_PARENTS];
+	u8 reg_mask[SYSCTRL_MAX_NUM_PARENTS];
+	u8 reg_bits[SYSCTRL_MAX_NUM_PARENTS];
+	unsigned long rate;
+	unsigned long enable_delay_us;
+};
+
+/* Sysctrl clock operations. */
+
+static int clk_sysctrl_prepare(struct clk_hw *hw)
+{
+	int ret;
+	struct clk_sysctrl *clk = to_clk_sysctrl(hw);
+
+	ret = ab8500_sysctrl_write(clk->reg_sel[0], clk->reg_mask[0],
+				clk->reg_bits[0]);
+
+	if (!ret && clk->enable_delay_us)
+		usleep_range(clk->enable_delay_us, clk->enable_delay_us +
+			     (clk->enable_delay_us >> 2));
+
+	return ret;
+}
+
+static void clk_sysctrl_unprepare(struct clk_hw *hw)
+{
+	struct clk_sysctrl *clk = to_clk_sysctrl(hw);
+	if (ab8500_sysctrl_clear(clk->reg_sel[0], clk->reg_mask[0]))
+		dev_err(clk->dev, "clk_sysctrl: %s fail to clear %s.\n",
+			__func__, clk_hw_get_name(hw));
+}
+
+static unsigned long clk_sysctrl_recalc_rate(struct clk_hw *hw,
+					unsigned long parent_rate)
+{
+	struct clk_sysctrl *clk = to_clk_sysctrl(hw);
+	return clk->rate;
+}
+
+static int clk_sysctrl_set_parent(struct clk_hw *hw, u8 index)
+{
+	struct clk_sysctrl *clk = to_clk_sysctrl(hw);
+	u8 old_index = clk->parent_index;
+	int ret = 0;
+
+	if (clk->reg_sel[old_index]) {
+		ret = ab8500_sysctrl_clear(clk->reg_sel[old_index],
+					clk->reg_mask[old_index]);
+		if (ret)
+			return ret;
+	}
+
+	if (clk->reg_sel[index]) {
+		ret = ab8500_sysctrl_write(clk->reg_sel[index],
+					clk->reg_mask[index],
+					clk->reg_bits[index]);
+		if (ret) {
+			if (clk->reg_sel[old_index])
+				ab8500_sysctrl_write(clk->reg_sel[old_index],
+						clk->reg_mask[old_index],
+						clk->reg_bits[old_index]);
+			return ret;
+		}
+	}
+	clk->parent_index = index;
+
+	return ret;
+}
+
+static u8 clk_sysctrl_get_parent(struct clk_hw *hw)
+{
+	struct clk_sysctrl *clk = to_clk_sysctrl(hw);
+	return clk->parent_index;
+}
+
+static const struct clk_ops clk_sysctrl_gate_ops = {
+	.prepare = clk_sysctrl_prepare,
+	.unprepare = clk_sysctrl_unprepare,
+};
+
+static const struct clk_ops clk_sysctrl_gate_fixed_rate_ops = {
+	.prepare = clk_sysctrl_prepare,
+	.unprepare = clk_sysctrl_unprepare,
+	.recalc_rate = clk_sysctrl_recalc_rate,
+};
+
+static const struct clk_ops clk_sysctrl_set_parent_ops = {
+	.determine_rate = clk_hw_determine_rate_no_reparent,
+	.set_parent = clk_sysctrl_set_parent,
+	.get_parent = clk_sysctrl_get_parent,
+};
+
+static struct clk *clk_reg_sysctrl(struct device *dev,
+				const char *name,
+				const char **parent_names,
+				u8 num_parents,
+				u16 *reg_sel,
+				u8 *reg_mask,
+				u8 *reg_bits,
+				unsigned long rate,
+				unsigned long enable_delay_us,
+				unsigned long flags,
+				const struct clk_ops *clk_sysctrl_ops)
+{
+	struct clk_sysctrl *clk;
+	struct clk_init_data clk_sysctrl_init;
+	struct clk *clk_reg;
+	int i;
+
+	if (!dev)
+		return ERR_PTR(-EINVAL);
+
+	if (!name || (num_parents > SYSCTRL_MAX_NUM_PARENTS)) {
+		dev_err(dev, "clk_sysctrl: invalid arguments passed\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	clk = devm_kzalloc(dev, sizeof(*clk), GFP_KERNEL);
+	if (!clk)
+		return ERR_PTR(-ENOMEM);
+
+	/* set main clock registers */
+	clk->reg_sel[0] = reg_sel[0];
+	clk->reg_bits[0] = reg_bits[0];
+	clk->reg_mask[0] = reg_mask[0];
+
+	/* handle clocks with more than one parent */
+	for (i = 1; i < num_parents; i++) {
+		clk->reg_sel[i] = reg_sel[i];
+		clk->reg_bits[i] = reg_bits[i];
+		clk->reg_mask[i] = reg_mask[i];
+	}
+
+	clk->parent_index = 0;
+	clk->rate = rate;
+	clk->enable_delay_us = enable_delay_us;
+	clk->dev = dev;
+
+	clk_sysctrl_init.name = name;
+	clk_sysctrl_init.ops = clk_sysctrl_ops;
+	clk_sysctrl_init.flags = flags;
+	clk_sysctrl_init.parent_names = parent_names;
+	clk_sysctrl_init.num_parents = num_parents;
+	clk->hw.init = &clk_sysctrl_init;
+
+	clk_reg = devm_clk_register(clk->dev, &clk->hw);
+	if (IS_ERR(clk_reg))
+		dev_err(dev, "clk_sysctrl: clk_register failed\n");
+
+	return clk_reg;
+}
+
+struct clk *clk_reg_sysctrl_gate(struct device *dev,
+				const char *name,
+				const char *parent_name,
+				u16 reg_sel,
+				u8 reg_mask,
+				u8 reg_bits,
+				unsigned long enable_delay_us,
+				unsigned long flags)
+{
+	const char **parent_names = (parent_name ? &parent_name : NULL);
+	u8 num_parents = (parent_name ? 1 : 0);
+
+	return clk_reg_sysctrl(dev, name, parent_names, num_parents,
+			&reg_sel, &reg_mask, &reg_bits, 0, enable_delay_us,
+			flags, &clk_sysctrl_gate_ops);
+}
+
+struct clk *clk_reg_sysctrl_gate_fixed_rate(struct device *dev,
+					const char *name,
+					const char *parent_name,
+					u16 reg_sel,
+					u8 reg_mask,
+					u8 reg_bits,
+					unsigned long rate,
+					unsigned long enable_delay_us,
+					unsigned long flags)
+{
+	const char **parent_names = (parent_name ? &parent_name : NULL);
+	u8 num_parents = (parent_name ? 1 : 0);
+
+	return clk_reg_sysctrl(dev, name, parent_names, num_parents,
+			&reg_sel, &reg_mask, &reg_bits,
+			rate, enable_delay_us, flags,
+			&clk_sysctrl_gate_fixed_rate_ops);
+}
+
+struct clk *clk_reg_sysctrl_set_parent(struct device *dev,
+				const char *name,
+				const char **parent_names,
+				u8 num_parents,
+				u16 *reg_sel,
+				u8 *reg_mask,
+				u8 *reg_bits,
+				unsigned long flags)
+{
+	return clk_reg_sysctrl(dev, name, parent_names, num_parents,
+			reg_sel, reg_mask, reg_bits, 0, 0, flags,
+			&clk_sysctrl_set_parent_ops);
+}

linux-7.2.3/drivers/clk/ux500/clk.h

@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Clocks for ux500 platforms
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ */
+
+#ifndef __UX500_CLK_H
+#define __UX500_CLK_H
+
+#include <linux/device.h>
+#include <linux/types.h>
+
+struct clk;
+struct clk_hw;
+
+struct clk *clk_reg_prcc_pclk(const char *name,
+			      const char *parent_name,
+			      resource_size_t phy_base,
+			      u32 cg_sel,
+			      unsigned long flags);
+
+struct clk *clk_reg_prcc_kclk(const char *name,
+			      const char *parent_name,
+			      resource_size_t phy_base,
+			      u32 cg_sel,
+			      unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_scalable(const char *name,
+				      const char *parent_name,
+				      u8 cg_sel,
+				      unsigned long rate,
+				      unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_gate(const char *name,
+				  const char *parent_name,
+				  u8 cg_sel,
+				  unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_scalable_rate(const char *name,
+					   const char *parent_name,
+					   u8 cg_sel,
+					   unsigned long rate,
+					   unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_rate(const char *name,
+				  const char *parent_name,
+				  u8 cg_sel,
+				  unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_opp_gate(const char *name,
+				      const char *parent_name,
+				      u8 cg_sel,
+				      unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_opp_volt_scalable(const char *name,
+					       const char *parent_name,
+					       u8 cg_sel,
+					       unsigned long rate,
+					       unsigned long flags);
+
+struct clk_hw *clk_reg_prcmu_clkout(const char *name,
+				    const char * const *parent_names,
+				    int num_parents,
+				    u8 source, u8 divider);
+
+struct clk *clk_reg_sysctrl_gate(struct device *dev,
+				 const char *name,
+				 const char *parent_name,
+				 u16 reg_sel,
+				 u8 reg_mask,
+				 u8 reg_bits,
+				 unsigned long enable_delay_us,
+				 unsigned long flags);
+
+struct clk *clk_reg_sysctrl_gate_fixed_rate(struct device *dev,
+					    const char *name,
+					    const char *parent_name,
+					    u16 reg_sel,
+					    u8 reg_mask,
+					    u8 reg_bits,
+					    unsigned long rate,
+					    unsigned long enable_delay_us,
+					    unsigned long flags);
+
+struct clk *clk_reg_sysctrl_set_parent(struct device *dev,
+				       const char *name,
+				       const char **parent_names,
+				       u8 num_parents,
+				       u16 *reg_sel,
+				       u8 *reg_mask,
+				       u8 *reg_bits,
+				       unsigned long flags);
+
+#endif /* __UX500_CLK_H */

linux-7.2.3/drivers/clk/ux500/prcc.h

@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __PRCC_H
+#define __PRCC_H
+
+#define PRCC_NUM_PERIPH_CLUSTERS 6
+#define PRCC_PERIPHS_PER_CLUSTER 32
+
+/* CLKRST4 is missing making it hard to index things */
+enum clkrst_index {
+	CLKRST1_INDEX = 0,
+	CLKRST2_INDEX,
+	CLKRST3_INDEX,
+	CLKRST5_INDEX,
+	CLKRST6_INDEX,
+	CLKRST_MAX,
+};
+
+#endif

linux-7.2.3/drivers/clk/ux500/reset-prcc.c

@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Reset controller portions for the U8500 PRCC
+ * Copyright (C) 2021 Linus Walleij <linus.walleij@linaro.org>
+ */
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/types.h>
+#include <linux/reset-controller.h>
+#include <linux/bits.h>
+#include <linux/delay.h>
+
+#include "prcc.h"
+#include "reset-prcc.h"
+
+#define to_u8500_prcc_reset(p) container_of((p), struct u8500_prcc_reset, rcdev)
+
+/* This macro flattens the 2-dimensional PRCC numberspace */
+#define PRCC_RESET_LINE(prcc_num, bit) \
+	(((prcc_num) * PRCC_PERIPHS_PER_CLUSTER) + (bit))
+
+/*
+ * Reset registers in each PRCC - the reset lines are active low
+ * so what you need to do is write a bit for the peripheral you
+ * want to put into reset into the CLEAR register, this will assert
+ * the reset by pulling the line low. SET take the device out of
+ * reset. The status reflects the actual state of the line.
+ */
+#define PRCC_K_SOFTRST_SET		0x018
+#define PRCC_K_SOFTRST_CLEAR		0x01c
+#define PRCC_K_RST_STATUS		0x020
+
+static int prcc_num_to_index(unsigned int num)
+{
+	switch (num) {
+	case 1:
+		return CLKRST1_INDEX;
+	case 2:
+		return CLKRST2_INDEX;
+	case 3:
+		return CLKRST3_INDEX;
+	case 5:
+		return CLKRST5_INDEX;
+	case 6:
+		return CLKRST6_INDEX;
+	}
+	return -EINVAL;
+}
+
+static void __iomem *u8500_prcc_reset_base(struct u8500_prcc_reset *ur,
+					   unsigned long id)
+{
+	unsigned int prcc_num, index;
+
+	prcc_num = id / PRCC_PERIPHS_PER_CLUSTER;
+	index = prcc_num_to_index(prcc_num);
+
+	if (index >= ARRAY_SIZE(ur->base))
+		return NULL;
+
+	return ur->base[index];
+}
+
+static int u8500_prcc_reset(struct reset_controller_dev *rcdev,
+			    unsigned long id)
+{
+	struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
+	void __iomem *base = u8500_prcc_reset_base(ur, id);
+	unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
+
+	pr_debug("PRCC cycle reset id %lu, bit %u\n", id, bit);
+
+	/*
+	 * Assert reset and then release it. The one microsecond
+	 * delay is found in the vendor reference code.
+	 */
+	writel(BIT(bit), base + PRCC_K_SOFTRST_CLEAR);
+	udelay(1);
+	writel(BIT(bit), base + PRCC_K_SOFTRST_SET);
+	udelay(1);
+
+	return 0;
+}
+
+static int u8500_prcc_reset_assert(struct reset_controller_dev *rcdev,
+				   unsigned long id)
+{
+	struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
+	void __iomem *base = u8500_prcc_reset_base(ur, id);
+	unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
+
+	pr_debug("PRCC assert reset id %lu, bit %u\n", id, bit);
+	writel(BIT(bit), base + PRCC_K_SOFTRST_CLEAR);
+
+	return 0;
+}
+
+static int u8500_prcc_reset_deassert(struct reset_controller_dev *rcdev,
+				     unsigned long id)
+{
+	struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
+	void __iomem *base = u8500_prcc_reset_base(ur, id);
+	unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
+
+	pr_debug("PRCC deassert reset id %lu, bit %u\n", id, bit);
+	writel(BIT(bit), base + PRCC_K_SOFTRST_SET);
+
+	return 0;
+}
+
+static int u8500_prcc_reset_status(struct reset_controller_dev *rcdev,
+				   unsigned long id)
+{
+	struct u8500_prcc_reset *ur = to_u8500_prcc_reset(rcdev);
+	void __iomem *base = u8500_prcc_reset_base(ur, id);
+	unsigned int bit = id % PRCC_PERIPHS_PER_CLUSTER;
+	u32 val;
+
+	pr_debug("PRCC check status on reset line id %lu, bit %u\n", id, bit);
+	val = readl(base + PRCC_K_RST_STATUS);
+
+	/* Active low so return the inverse value of the bit */
+	return !(val & BIT(bit));
+}
+
+static const struct reset_control_ops u8500_prcc_reset_ops = {
+	.reset = u8500_prcc_reset,
+	.assert = u8500_prcc_reset_assert,
+	.deassert = u8500_prcc_reset_deassert,
+	.status = u8500_prcc_reset_status,
+};
+
+static int u8500_prcc_reset_xlate(struct reset_controller_dev *rcdev,
+				  const struct of_phandle_args *reset_spec)
+{
+	unsigned int prcc_num, bit;
+
+	if (reset_spec->args_count != 2)
+		return -EINVAL;
+
+	prcc_num = reset_spec->args[0];
+	bit = reset_spec->args[1];
+
+	if (prcc_num != 1 && prcc_num != 2 && prcc_num != 3 &&
+	    prcc_num != 5 && prcc_num != 6) {
+		pr_err("%s: invalid PRCC %d\n", __func__, prcc_num);
+		return -EINVAL;
+	}
+
+	pr_debug("located reset line %d at PRCC %d bit %d\n",
+		 PRCC_RESET_LINE(prcc_num, bit), prcc_num, bit);
+
+	return PRCC_RESET_LINE(prcc_num, bit);
+}
+
+void u8500_prcc_reset_init(struct device_node *np, struct u8500_prcc_reset *ur)
+{
+	struct reset_controller_dev *rcdev = &ur->rcdev;
+	int ret;
+	int i;
+
+	for (i = 0; i < CLKRST_MAX; i++) {
+		ur->base[i] = ioremap(ur->phy_base[i], SZ_4K);
+		if (!ur->base[i])
+			pr_err("PRCC failed to remap for reset base %d (%08x)\n",
+			       i, ur->phy_base[i]);
+	}
+
+	rcdev->owner = THIS_MODULE;
+	rcdev->ops = &u8500_prcc_reset_ops;
+	rcdev->of_node = np;
+	rcdev->of_reset_n_cells = 2;
+	rcdev->of_xlate = u8500_prcc_reset_xlate;
+
+	ret = reset_controller_register(rcdev);
+	if (ret)
+		pr_err("PRCC failed to register reset controller\n");
+}

linux-7.2.3/drivers/clk/ux500/reset-prcc.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __RESET_PRCC_H
+#define __RESET_PRCC_H
+
+#include <linux/reset-controller.h>
+#include <linux/io.h>
+
+/**
+ * struct u8500_prcc_reset - U8500 PRCC reset controller state
+ * @rcdev: reset controller device
+ * @phy_base: the physical base address for each PRCC block
+ * @base: the remapped PRCC bases
+ */
+struct u8500_prcc_reset {
+	struct reset_controller_dev rcdev;
+	u32 phy_base[CLKRST_MAX];
+	void __iomem *base[CLKRST_MAX];
+};
+
+void u8500_prcc_reset_init(struct device_node *np, struct u8500_prcc_reset *ur);
+
+#endif

linux-7.2.3/drivers/clk/ux500/u8500_of_clk.c

@@ -0,0 +1,618 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Clock definitions for u8500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ */
+
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+
+#include "clk.h"
+#include "prcc.h"
+#include "reset-prcc.h"
+
+static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
+static struct clk *prcc_kclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
+static struct clk_hw *clkout_clk[2];
+
+#define PRCC_SHOW(clk, base, bit) \
+	clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
+#define PRCC_PCLK_STORE(clk, base, bit)	\
+	prcc_pclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
+#define PRCC_KCLK_STORE(clk, base, bit)        \
+	prcc_kclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
+
+static struct clk *ux500_twocell_get(struct of_phandle_args *clkspec,
+				     void *data)
+{
+	struct clk **clk_data = data;
+	unsigned int base, bit;
+
+	if (clkspec->args_count != 2)
+		return  ERR_PTR(-EINVAL);
+
+	base = clkspec->args[0];
+	bit = clkspec->args[1];
+
+	if (base != 1 && base != 2 && base != 3 && base != 5 && base != 6) {
+		pr_err("%s: invalid PRCC base %d\n", __func__, base);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return PRCC_SHOW(clk_data, base, bit);
+}
+
+static struct clk_hw_onecell_data u8500_prcmu_hw_clks = {
+	.hws = {
+		/*
+		 * This assignment makes sure the dynamic array
+		 * gets the right size.
+		 */
+		[PRCMU_NUM_CLKS] = NULL,
+	},
+	.num = PRCMU_NUM_CLKS,
+};
+
+/* Essentially names for the first PRCMU_CLKSRC_* defines */
+static const char * const u8500_clkout_parents[] = {
+	"clk38m_to_clkgen",
+	"aclk",
+	/* Just called "sysclk" in documentation */
+	"ab8500_sysclk",
+	"lcdclk",
+	"sdmmcclk",
+	"tvclk",
+	"timclk",
+	/* CLK009 is not implemented, add it if you need it */
+	"clk009",
+};
+
+static struct clk_hw *ux500_clkout_get(struct of_phandle_args *clkspec,
+				       void *data)
+{
+	u32 id, source, divider;
+	struct clk_hw *clkout;
+
+	if (clkspec->args_count != 3)
+		return  ERR_PTR(-EINVAL);
+
+	id = clkspec->args[0];
+	source = clkspec->args[1];
+	divider = clkspec->args[2];
+
+	if (id > 1) {
+		pr_err("%s: invalid clkout ID %d\n", __func__, id);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (clkout_clk[id]) {
+		pr_info("%s: clkout%d already registered, not reconfiguring\n",
+			__func__, id + 1);
+		return clkout_clk[id];
+	}
+
+	if (source > 7) {
+		pr_err("%s: invalid source ID %d\n", __func__, source);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (divider == 0 || divider > 63) {
+		pr_err("%s: invalid divider %d\n", __func__, divider);
+		return ERR_PTR(-EINVAL);
+	}
+
+	pr_debug("registering clkout%d with source %d and divider %d\n",
+		 id + 1, source, divider);
+
+	clkout = clk_reg_prcmu_clkout(id ? "clkout2" : "clkout1",
+				      u8500_clkout_parents,
+				      ARRAY_SIZE(u8500_clkout_parents),
+				      source, divider);
+	if (IS_ERR(clkout)) {
+		pr_err("failed to register clkout%d\n",  id + 1);
+		return ERR_CAST(clkout);
+	}
+
+	clkout_clk[id] = clkout;
+
+	return clkout;
+}
+
+static void u8500_clk_init(struct device_node *np)
+{
+	struct prcmu_fw_version *fw_version;
+	struct device_node *child = NULL;
+	const char *sgaclk_parent = NULL;
+	struct clk *clk, *rtc_clk, *twd_clk;
+	u32 bases[CLKRST_MAX];
+	struct u8500_prcc_reset *rstc;
+	int i;
+
+	/*
+	 * We allocate the reset controller here so that we can fill in the
+	 * base addresses properly and pass to the reset controller init
+	 * function later on.
+	 */
+	rstc = kzalloc_obj(*rstc);
+	if (!rstc)
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(bases); i++) {
+		struct resource r;
+
+		if (of_address_to_resource(np, i, &r))
+			/* Not much choice but to continue */
+			pr_err("failed to get CLKRST %d base address\n",
+			       i + 1);
+		bases[i] = r.start;
+		rstc->phy_base[i] = r.start;
+	}
+
+	/* Clock sources */
+	u8500_prcmu_hw_clks.hws[PRCMU_PLLSOC0] =
+		clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
+				   CLK_IGNORE_UNUSED);
+
+	u8500_prcmu_hw_clks.hws[PRCMU_PLLSOC1] =
+		clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
+				   CLK_IGNORE_UNUSED);
+
+	u8500_prcmu_hw_clks.hws[PRCMU_PLLDDR] =
+		clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
+				   CLK_IGNORE_UNUSED);
+
+	/*
+	 * Read-only clocks that only return their current rate, only used
+	 * as parents to other clocks and not visible in the device tree.
+	 * clk38m_to_clkgen is the same as the SYSCLK, i.e. the root clock.
+	 */
+	clk_reg_prcmu_rate("clk38m_to_clkgen", NULL, PRCMU_SYSCLK,
+			   CLK_IGNORE_UNUSED);
+	clk_reg_prcmu_rate("aclk", NULL, PRCMU_ACLK,
+			   CLK_IGNORE_UNUSED);
+
+	/* TODO: add CLK009 if needed */
+
+	rtc_clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
+				CLK_IGNORE_UNUSED,
+				32768);
+
+	/* PRCMU clocks */
+	fw_version = prcmu_get_fw_version();
+	if (fw_version != NULL) {
+		switch (fw_version->project) {
+		case PRCMU_FW_PROJECT_U8500_C2:
+		case PRCMU_FW_PROJECT_U8500_SSG1:
+		case PRCMU_FW_PROJECT_U8520:
+		case PRCMU_FW_PROJECT_U8420:
+		case PRCMU_FW_PROJECT_U8420_SYSCLK:
+		case PRCMU_FW_PROJECT_U8500_SSG2:
+			sgaclk_parent = "soc0_pll";
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (sgaclk_parent)
+		u8500_prcmu_hw_clks.hws[PRCMU_SGACLK] =
+			clk_reg_prcmu_gate("sgclk", sgaclk_parent,
+					   PRCMU_SGACLK, 0);
+	else
+		u8500_prcmu_hw_clks.hws[PRCMU_SGACLK] =
+			clk_reg_prcmu_gate("sgclk", NULL, PRCMU_SGACLK, 0);
+
+	u8500_prcmu_hw_clks.hws[PRCMU_UARTCLK] =
+		clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_MSP02CLK] =
+		clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_MSP1CLK] =
+		clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_I2CCLK] =
+		clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_SLIMCLK] =
+		clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_PER1CLK] =
+		clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_PER2CLK] =
+		clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_PER3CLK] =
+		clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_PER5CLK] =
+		clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_PER6CLK] =
+		clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_PER7CLK] =
+		clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_LCDCLK] =
+		clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
+				       CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_BMLCLK] =
+		clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_HSITXCLK] =
+		clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
+				       CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_HSIRXCLK] =
+		clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
+				       CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_HDMICLK] =
+		clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
+				       CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_APEATCLK] =
+		clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_APETRACECLK] =
+		clk_reg_prcmu_scalable("apetraceclk", NULL, PRCMU_APETRACECLK, 0,
+				       CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_MCDECLK] =
+		clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_IPI2CCLK] =
+		clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_DSIALTCLK] =
+		clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_DMACLK] =
+		clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_B2R2CLK] =
+		clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_TVCLK] =
+		clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
+				       CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_SSPCLK] =
+		clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_RNGCLK] =
+		clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_UICCCLK] =
+		clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_TIMCLK] =
+		clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_SYSCLK] =
+		clk_reg_prcmu_gate("ab8500_sysclk", NULL, PRCMU_SYSCLK, 0);
+	u8500_prcmu_hw_clks.hws[PRCMU_SDMMCCLK] =
+		clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL,
+						PRCMU_SDMMCCLK, 100000000,
+						CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_PLLDSI] =
+		clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
+				       PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_DSI0CLK] =
+		clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
+				       PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_DSI1CLK] =
+		clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
+				       PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_DSI0ESCCLK] =
+		clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
+				       PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_DSI1ESCCLK] =
+		clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
+				       PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_DSI2ESCCLK] =
+		clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
+				       PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
+	u8500_prcmu_hw_clks.hws[PRCMU_ARMSS] =
+		clk_reg_prcmu_scalable_rate("armss", NULL,
+					    PRCMU_ARMSS, 0, CLK_IGNORE_UNUSED);
+
+	twd_clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
+				CLK_IGNORE_UNUSED, 1, 2);
+
+	/* PRCC P-clocks */
+	clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", bases[CLKRST1_INDEX],
+				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 1, 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", bases[CLKRST1_INDEX],
+				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 1, 1);
+
+	clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", bases[CLKRST1_INDEX],
+				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 1, 2);
+
+	clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", bases[CLKRST1_INDEX],
+				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 1, 3);
+
+	clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", bases[CLKRST1_INDEX],
+				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 1, 4);
+
+	clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", bases[CLKRST1_INDEX],
+				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 1, 5);
+
+	clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", bases[CLKRST1_INDEX],
+				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 1, 6);
+
+	clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", bases[CLKRST1_INDEX],
+				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 1, 7);
+
+	clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", bases[CLKRST1_INDEX],
+				BIT(8), 0);
+	PRCC_PCLK_STORE(clk, 1, 8);
+
+	clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", bases[CLKRST1_INDEX],
+				BIT(9), 0);
+	PRCC_PCLK_STORE(clk, 1, 9);
+
+	clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", bases[CLKRST1_INDEX],
+				BIT(10), 0);
+	PRCC_PCLK_STORE(clk, 1, 10);
+
+	clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", bases[CLKRST1_INDEX],
+				BIT(11), 0);
+	PRCC_PCLK_STORE(clk, 1, 11);
+
+	clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", bases[CLKRST2_INDEX],
+				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 2, 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", bases[CLKRST2_INDEX],
+				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 2, 1);
+
+	clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", bases[CLKRST2_INDEX],
+				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 2, 2);
+
+	clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", bases[CLKRST2_INDEX],
+				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 2, 3);
+
+	clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", bases[CLKRST2_INDEX],
+				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 2, 4);
+
+	clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", bases[CLKRST2_INDEX],
+				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 2, 5);
+
+	clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", bases[CLKRST2_INDEX],
+				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 2, 6);
+
+	clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", bases[CLKRST2_INDEX],
+				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 2, 7);
+
+	clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", bases[CLKRST2_INDEX],
+				BIT(8), 0);
+	PRCC_PCLK_STORE(clk, 2, 8);
+
+	clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", bases[CLKRST2_INDEX],
+				BIT(9), 0);
+	PRCC_PCLK_STORE(clk, 2, 9);
+
+	clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", bases[CLKRST2_INDEX],
+				BIT(10), 0);
+	PRCC_PCLK_STORE(clk, 2, 10);
+
+	clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", bases[CLKRST2_INDEX],
+				BIT(11), 0);
+	PRCC_PCLK_STORE(clk, 2, 11);
+
+	clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", bases[CLKRST2_INDEX],
+				BIT(12), 0);
+	PRCC_PCLK_STORE(clk, 2, 12);
+
+	clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", bases[CLKRST3_INDEX],
+				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 3, 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", bases[CLKRST3_INDEX],
+				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 3, 1);
+
+	clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", bases[CLKRST3_INDEX],
+				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 3, 2);
+
+	clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", bases[CLKRST3_INDEX],
+				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 3, 3);
+
+	clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", bases[CLKRST3_INDEX],
+				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 3, 4);
+
+	clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", bases[CLKRST3_INDEX],
+				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 3, 5);
+
+	clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", bases[CLKRST3_INDEX],
+				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 3, 6);
+
+	clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", bases[CLKRST3_INDEX],
+				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 3, 7);
+
+	clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", bases[CLKRST3_INDEX],
+				BIT(8), 0);
+	PRCC_PCLK_STORE(clk, 3, 8);
+
+	clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", bases[CLKRST5_INDEX],
+				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 5, 0);
+
+	clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", bases[CLKRST5_INDEX],
+				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 5, 1);
+
+	clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", bases[CLKRST6_INDEX],
+				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 6, 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", bases[CLKRST6_INDEX],
+				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 6, 1);
+
+	clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", bases[CLKRST6_INDEX],
+				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 6, 2);
+
+	clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", bases[CLKRST6_INDEX],
+				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 6, 3);
+
+	clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", bases[CLKRST6_INDEX],
+				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 6, 4);
+
+	clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", bases[CLKRST6_INDEX],
+				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 6, 5);
+
+	clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", bases[CLKRST6_INDEX],
+				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 6, 6);
+
+	clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", bases[CLKRST6_INDEX],
+				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 6, 7);
+
+	/* PRCC K-clocks
+	 *
+	 * FIXME: Some drivers requires PERPIH[n| to be automatically enabled
+	 * by enabling just the K-clock, even if it is not a valid parent to
+	 * the K-clock. Until drivers get fixed we might need some kind of
+	 * "parent muxed join".
+	 */
+
+	/* Periph1 */
+	clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk",
+			bases[CLKRST1_INDEX], BIT(0), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 0);
+
+	clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
+			bases[CLKRST1_INDEX], BIT(1), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 1);
+
+	clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
+			bases[CLKRST1_INDEX], BIT(2), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 2);
+
+	clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
+			bases[CLKRST1_INDEX], BIT(3), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 3);
+
+	clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
+			bases[CLKRST1_INDEX], BIT(4), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 4);
+
+	clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
+			bases[CLKRST1_INDEX], BIT(5), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 5);
+
+	clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
+			bases[CLKRST1_INDEX], BIT(6), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 6);
+
+	clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
+			bases[CLKRST1_INDEX], BIT(8), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 8);
+
+	clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
+			bases[CLKRST1_INDEX], BIT(9), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 9);
+
+	clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
+			bases[CLKRST1_INDEX], BIT(10), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 10);
+
+	/* Periph2 */
+	clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
+			bases[CLKRST2_INDEX], BIT(0), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 0);
+
+	clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
+			bases[CLKRST2_INDEX], BIT(2), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 2);
+
+	clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
+			bases[CLKRST2_INDEX], BIT(3), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 3);
+
+	clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
+			bases[CLKRST2_INDEX], BIT(4), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 4);
+
+	clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
+			bases[CLKRST2_INDEX], BIT(5), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 5);
+
+	/* Note that rate is received from parent. */
+	clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk",
+			bases[CLKRST2_INDEX], BIT(6),
+			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+	PRCC_KCLK_STORE(clk, 2, 6);
+
+	clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk",
+			bases[CLKRST2_INDEX], BIT(7),
+			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+	PRCC_KCLK_STORE(clk, 2, 7);
+
+	/* Periph3 */
+	clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
+			bases[CLKRST3_INDEX], BIT(1), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 1);
+
+	clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
+			bases[CLKRST3_INDEX], BIT(2), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 2);
+
+	clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
+			bases[CLKRST3_INDEX], BIT(3), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 3);
+
+	clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
+			bases[CLKRST3_INDEX], BIT(4), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 4);
+
+	clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
+			bases[CLKRST3_INDEX], BIT(5), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 5);
+
+	clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
+			bases[CLKRST3_INDEX], BIT(6), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 6);
+
+	clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
+			bases[CLKRST3_INDEX], BIT(7), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 7);
+
+	/* Periph6 */
+	clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
+			bases[CLKRST6_INDEX], BIT(0), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 6, 0);
+
+	for_each_child_of_node(np, child) {
+		if (of_node_name_eq(child, "prcmu-clock"))
+			of_clk_add_hw_provider(child, of_clk_hw_onecell_get,
+					       &u8500_prcmu_hw_clks);
+
+		if (of_node_name_eq(child, "clkout-clock"))
+			of_clk_add_hw_provider(child, ux500_clkout_get, NULL);
+
+		if (of_node_name_eq(child, "prcc-periph-clock"))
+			of_clk_add_provider(child, ux500_twocell_get, prcc_pclk);
+
+		if (of_node_name_eq(child, "prcc-kernel-clock"))
+			of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
+
+		if (of_node_name_eq(child, "rtc32k-clock"))
+			of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
+
+		if (of_node_name_eq(child, "smp-twd-clock"))
+			of_clk_add_provider(child, of_clk_src_simple_get, twd_clk);
+
+		if (of_node_name_eq(child, "prcc-reset-controller"))
+			u8500_prcc_reset_init(child, rstc);
+	}
+}
+CLK_OF_DECLARE(u8500_clks, "stericsson,u8500-clks", u8500_clk_init);