summaryrefslogtreecommitdiffstats
path: root/drivers/clk/ux500
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/clk/ux500')
-rw-r--r--drivers/clk/ux500/Makefile18
-rw-r--r--drivers/clk/ux500/abx500-clk.c126
-rw-r--r--drivers/clk/ux500/clk-prcc.c159
-rw-r--r--drivers/clk/ux500/clk-prcmu.c400
-rw-r--r--drivers/clk/ux500/clk-sysctrl.c225
-rw-r--r--drivers/clk/ux500/clk.h96
-rw-r--r--drivers/clk/ux500/prcc.h19
-rw-r--r--drivers/clk/ux500/reset-prcc.c181
-rw-r--r--drivers/clk/ux500/reset-prcc.h23
-rw-r--r--drivers/clk/ux500/u8500_of_clk.c618
10 files changed, 1865 insertions, 0 deletions
diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile
new file mode 100644
index 000000000..c29b83df4
--- /dev/null
+++ b/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
diff --git a/drivers/clk/ux500/abx500-clk.c b/drivers/clk/ux500/abx500-clk.c
new file mode 100644
index 000000000..b2ddbf08f
--- /dev/null
+++ b/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");
diff --git a/drivers/clk/ux500/clk-prcc.c b/drivers/clk/ux500/clk-prcc.c
new file mode 100644
index 000000000..b85ee0930
--- /dev/null
+++ b/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(sizeof(*clk), GFP_KERNEL);
+ 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);
+}
diff --git a/drivers/clk/ux500/clk-prcmu.c b/drivers/clk/ux500/clk-prcmu.c
new file mode 100644
index 000000000..4deb37f19
--- /dev/null
+++ b/drivers/clk/ux500/clk-prcmu.c
@@ -0,0 +1,400 @@
+// 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 long clk_prcmu_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ struct clk_prcmu *clk = to_clk_prcmu(hw);
+ return prcmu_round_clock_rate(clk->cg_sel, rate);
+}
+
+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,
+ .round_rate = clk_prcmu_round_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,
+ .round_rate = clk_prcmu_round_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,
+ .round_rate = clk_prcmu_round_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(sizeof(*clk), GFP_KERNEL);
+ 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,
+ .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(sizeof(*clk), GFP_KERNEL);
+ 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);
+}
diff --git a/drivers/clk/ux500/clk-sysctrl.c b/drivers/clk/ux500/clk-sysctrl.c
new file mode 100644
index 000000000..702f2f8b4
--- /dev/null
+++ b/drivers/clk/ux500/clk-sysctrl.c
@@ -0,0 +1,225 @@
+// 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 = {
+ .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);
+}
diff --git a/drivers/clk/ux500/clk.h b/drivers/clk/ux500/clk.h
new file mode 100644
index 000000000..91003cf80
--- /dev/null
+++ b/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 */
diff --git a/drivers/clk/ux500/prcc.h b/drivers/clk/ux500/prcc.h
new file mode 100644
index 000000000..5b6774d79
--- /dev/null
+++ b/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
diff --git a/drivers/clk/ux500/reset-prcc.c b/drivers/clk/ux500/reset-prcc.c
new file mode 100644
index 000000000..f7e48941f
--- /dev/null
+++ b/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");
+}
diff --git a/drivers/clk/ux500/reset-prcc.h b/drivers/clk/ux500/reset-prcc.h
new file mode 100644
index 000000000..353c9719f
--- /dev/null
+++ b/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
diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
new file mode 100644
index 000000000..8e2f6c65d
--- /dev/null
+++ b/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(sizeof(*rstc), GFP_KERNEL);
+ 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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-04 10:08:54 +0000