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-rw-r--r--drivers/clk/Kconfig14
-rw-r--r--drivers/clk/Makefile3
-rw-r--r--drivers/clk/clk-bcm2835.c8
-rw-r--r--drivers/clk/clk-efm32gg.c81
-rw-r--r--drivers/clk/clk-fixed-factor.c2
-rw-r--r--drivers/clk/clk-highbank.c10
-rw-r--r--drivers/clk/clk-nomadik.c187
-rw-r--r--drivers/clk/clk-ppc-corenet.c1
-rw-r--r--drivers/clk/clk-prima2.c29
-rw-r--r--drivers/clk/clk-vt8500.c34
-rw-r--r--drivers/clk/clk-wm831x.c6
-rw-r--r--drivers/clk/clk-xgene.c521
-rw-r--r--drivers/clk/clk.c56
-rw-r--r--drivers/clk/keystone/Makefile1
-rw-r--r--drivers/clk/keystone/gate.c264
-rw-r--r--drivers/clk/keystone/pll.c305
-rw-r--r--drivers/clk/mxs/clk-imx23.c15
-rw-r--r--drivers/clk/mxs/clk-imx28.c16
-rw-r--r--drivers/clk/samsung/Makefile2
-rw-r--r--drivers/clk/sunxi/clk-sunxi.c11
-rw-r--r--drivers/clk/ux500/Makefile1
-rw-r--r--drivers/clk/ux500/u8500_of_clk.c559
-rw-r--r--drivers/clk/ux500/u8540_clk.c2
-rw-r--r--drivers/clk/zynq/clkc.c16
24 files changed, 1948 insertions, 196 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 279407a36391..5c51115081b3 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -93,6 +93,20 @@ config CLK_PPC_CORENET
This adds the clock driver support for Freescale PowerPC corenet
platforms using common clock framework.
+config COMMON_CLK_XGENE
+ bool "Clock driver for APM XGene SoC"
+ default y
+ depends on ARM64
+ ---help---
+ Sypport for the APM X-Gene SoC reference, PLL, and device clocks.
+
+config COMMON_CLK_KEYSTONE
+ tristate "Clock drivers for Keystone based SOCs"
+ depends on ARCH_KEYSTONE && OF
+ ---help---
+ Supports clock drivers for Keystone based SOCs. These SOCs have local
+ a power sleep control module that gate the clock to the IPs and PLLs.
+
endmenu
source "drivers/clk/mvebu/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 7b111062ccba..7a10bc9a23e7 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_COMMON_CLK) += clk-composite.o
# SoCs specific
obj-$(CONFIG_ARCH_BCM2835) += clk-bcm2835.o
+obj-$(CONFIG_ARCH_EFM32) += clk-efm32gg.o
obj-$(CONFIG_ARCH_NOMADIK) += clk-nomadik.o
obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o
obj-$(CONFIG_ARCH_NSPIRE) += clk-nspire.o
@@ -32,6 +33,8 @@ obj-$(CONFIG_ARCH_VT8500) += clk-vt8500.o
obj-$(CONFIG_ARCH_ZYNQ) += zynq/
obj-$(CONFIG_ARCH_TEGRA) += tegra/
obj-$(CONFIG_PLAT_SAMSUNG) += samsung/
+obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o
+obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/
obj-$(CONFIG_X86) += x86/
diff --git a/drivers/clk/clk-bcm2835.c b/drivers/clk/clk-bcm2835.c
index 5fb4ff53d088..6b950ca8b711 100644
--- a/drivers/clk/clk-bcm2835.c
+++ b/drivers/clk/clk-bcm2835.c
@@ -20,14 +20,8 @@
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/clk/bcm2835.h>
-#include <linux/clk-provider.h>
#include <linux/of.h>
-static const struct of_device_id clk_match[] __initconst = {
- { .compatible = "fixed-clock", .data = of_fixed_clk_setup, },
- { }
-};
-
/*
* These are fixed clocks. They're probably not all root clocks and it may
* be possible to turn them on and off but until this is mapped out better
@@ -63,6 +57,4 @@ void __init bcm2835_init_clocks(void)
ret = clk_register_clkdev(clk, NULL, "20215000.uart");
if (ret)
pr_err("uart1_pclk alias not registered\n");
-
- of_clk_init(clk_match);
}
diff --git a/drivers/clk/clk-efm32gg.c b/drivers/clk/clk-efm32gg.c
new file mode 100644
index 000000000000..bac2ddf49d02
--- /dev/null
+++ b/drivers/clk/clk-efm32gg.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2013 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <dt-bindings/clock/efm32-cmu.h>
+
+#define CMU_HFPERCLKEN0 0x44
+
+static struct clk *clk[37];
+static struct clk_onecell_data clk_data = {
+ .clks = clk,
+ .clk_num = ARRAY_SIZE(clk),
+};
+
+static int __init efm32gg_cmu_init(struct device_node *np)
+{
+ int i;
+ void __iomem *base;
+
+ for (i = 0; i < ARRAY_SIZE(clk); ++i)
+ clk[i] = ERR_PTR(-ENOENT);
+
+ base = of_iomap(np, 0);
+ if (!base) {
+ pr_warn("Failed to map address range for efm32gg,cmu node\n");
+ return -EADDRNOTAVAIL;
+ }
+
+ clk[clk_HFXO] = clk_register_fixed_rate(NULL, "HFXO", NULL,
+ CLK_IS_ROOT, 48000000);
+
+ clk[clk_HFPERCLKUSART0] = clk_register_gate(NULL, "HFPERCLK.USART0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 0, 0, NULL);
+ clk[clk_HFPERCLKUSART1] = clk_register_gate(NULL, "HFPERCLK.USART1",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 1, 0, NULL);
+ clk[clk_HFPERCLKUSART2] = clk_register_gate(NULL, "HFPERCLK.USART2",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 2, 0, NULL);
+ clk[clk_HFPERCLKUART0] = clk_register_gate(NULL, "HFPERCLK.UART0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 3, 0, NULL);
+ clk[clk_HFPERCLKUART1] = clk_register_gate(NULL, "HFPERCLK.UART1",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 4, 0, NULL);
+ clk[clk_HFPERCLKTIMER0] = clk_register_gate(NULL, "HFPERCLK.TIMER0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 5, 0, NULL);
+ clk[clk_HFPERCLKTIMER1] = clk_register_gate(NULL, "HFPERCLK.TIMER1",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 6, 0, NULL);
+ clk[clk_HFPERCLKTIMER2] = clk_register_gate(NULL, "HFPERCLK.TIMER2",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 7, 0, NULL);
+ clk[clk_HFPERCLKTIMER3] = clk_register_gate(NULL, "HFPERCLK.TIMER3",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 8, 0, NULL);
+ clk[clk_HFPERCLKACMP0] = clk_register_gate(NULL, "HFPERCLK.ACMP0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 9, 0, NULL);
+ clk[clk_HFPERCLKACMP1] = clk_register_gate(NULL, "HFPERCLK.ACMP1",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 10, 0, NULL);
+ clk[clk_HFPERCLKI2C0] = clk_register_gate(NULL, "HFPERCLK.I2C0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 11, 0, NULL);
+ clk[clk_HFPERCLKI2C1] = clk_register_gate(NULL, "HFPERCLK.I2C1",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 12, 0, NULL);
+ clk[clk_HFPERCLKGPIO] = clk_register_gate(NULL, "HFPERCLK.GPIO",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 13, 0, NULL);
+ clk[clk_HFPERCLKVCMP] = clk_register_gate(NULL, "HFPERCLK.VCMP",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 14, 0, NULL);
+ clk[clk_HFPERCLKPRS] = clk_register_gate(NULL, "HFPERCLK.PRS",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 15, 0, NULL);
+ clk[clk_HFPERCLKADC0] = clk_register_gate(NULL, "HFPERCLK.ADC0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 16, 0, NULL);
+ clk[clk_HFPERCLKDAC0] = clk_register_gate(NULL, "HFPERCLK.DAC0",
+ "HFXO", 0, base + CMU_HFPERCLKEN0, 17, 0, NULL);
+
+ return of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+}
+CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init);
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 0e1d89b4321b..d9e3f671c2ea 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -117,7 +117,7 @@ void __init of_fixed_factor_clk_setup(struct device_node *node)
}
if (of_property_read_u32(node, "clock-mult", &mult)) {
- pr_err("%s Fixed factor clock <%s> must have a clokc-mult property\n",
+ pr_err("%s Fixed factor clock <%s> must have a clock-mult property\n",
__func__, node->name);
return;
}
diff --git a/drivers/clk/clk-highbank.c b/drivers/clk/clk-highbank.c
index 2e08cb001936..2e7e9d9798cb 100644
--- a/drivers/clk/clk-highbank.c
+++ b/drivers/clk/clk-highbank.c
@@ -20,8 +20,7 @@
#include <linux/clk-provider.h>
#include <linux/io.h>
#include <linux/of.h>
-
-extern void __iomem *sregs_base;
+#include <linux/of_address.h>
#define HB_PLL_LOCK_500 0x20000000
#define HB_PLL_LOCK 0x10000000
@@ -280,6 +279,7 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
const char *clk_name = node->name;
const char *parent_name;
struct clk_init_data init;
+ struct device_node *srnp;
int rc;
rc = of_property_read_u32(node, "reg", &reg);
@@ -290,7 +290,11 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
if (WARN_ON(!hb_clk))
return NULL;
- hb_clk->reg = sregs_base + reg;
+ /* Map system registers */
+ srnp = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
+ hb_clk->reg = of_iomap(srnp, 0);
+ BUG_ON(!hb_clk->reg);
+ hb_clk->reg += reg;
of_property_read_string(node, "clock-output-names", &clk_name);
diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index 4d978a3c88f7..6a934a5296bd 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -62,6 +62,79 @@ static DEFINE_SPINLOCK(src_lock);
/* Base address of the SRC */
static void __iomem *src_base;
+static int nomadik_clk_reboot_handler(struct notifier_block *this,
+ unsigned long code,
+ void *unused)
+{
+ u32 val;
+
+ /* The main chrystal need to be enabled for reboot to work */
+ val = readl(src_base + SRC_XTALCR);
+ val &= ~SRC_XTALCR_MXTALOVER;
+ val |= SRC_XTALCR_MXTALEN;
+ pr_crit("force-enabling MXTALO\n");
+ writel(val, src_base + SRC_XTALCR);
+ return NOTIFY_OK;
+}
+
+static struct notifier_block nomadik_clk_reboot_notifier = {
+ .notifier_call = nomadik_clk_reboot_handler,
+};
+
+static const struct of_device_id nomadik_src_match[] __initconst = {
+ { .compatible = "stericsson,nomadik-src" },
+ { /* sentinel */ }
+};
+
+static void __init nomadik_src_init(void)
+{
+ struct device_node *np;
+ u32 val;
+
+ np = of_find_matching_node(NULL, nomadik_src_match);
+ if (!np) {
+ pr_crit("no matching node for SRC, aborting clock init\n");
+ return;
+ }
+ src_base = of_iomap(np, 0);
+ if (!src_base) {
+ pr_err("%s: must have src parent node with REGS (%s)\n",
+ __func__, np->name);
+ return;
+ }
+
+ /* Set all timers to use the 2.4 MHz TIMCLK */
+ val = readl(src_base + SRC_CR);
+ val |= SRC_CR_T0_ENSEL;
+ val |= SRC_CR_T1_ENSEL;
+ val |= SRC_CR_T2_ENSEL;
+ val |= SRC_CR_T3_ENSEL;
+ val |= SRC_CR_T4_ENSEL;
+ val |= SRC_CR_T5_ENSEL;
+ val |= SRC_CR_T6_ENSEL;
+ val |= SRC_CR_T7_ENSEL;
+ writel(val, src_base + SRC_CR);
+
+ val = readl(src_base + SRC_XTALCR);
+ pr_info("SXTALO is %s\n",
+ (val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled");
+ pr_info("MXTAL is %s\n",
+ (val & SRC_XTALCR_MXTALSTAT) ? "enabled" : "disabled");
+ if (of_property_read_bool(np, "disable-sxtalo")) {
+ /* The machine uses an external oscillator circuit */
+ val |= SRC_XTALCR_SXTALDIS;
+ pr_info("disabling SXTALO\n");
+ }
+ if (of_property_read_bool(np, "disable-mxtalo")) {
+ /* Disable this too: also run by external oscillator */
+ val |= SRC_XTALCR_MXTALOVER;
+ val &= ~SRC_XTALCR_MXTALEN;
+ pr_info("disabling MXTALO\n");
+ }
+ writel(val, src_base + SRC_XTALCR);
+ register_reboot_notifier(&nomadik_clk_reboot_notifier);
+}
+
/**
* struct clk_pll1 - Nomadik PLL1 clock
* @hw: corresponding clock hardware entry
@@ -439,6 +512,9 @@ static void __init of_nomadik_pll_setup(struct device_node *np)
const char *parent_name;
u32 pll_id;
+ if (!src_base)
+ nomadik_src_init();
+
if (of_property_read_u32(np, "pll-id", &pll_id)) {
pr_err("%s: PLL \"%s\" missing pll-id property\n",
__func__, clk_name);
@@ -449,6 +525,8 @@ static void __init of_nomadik_pll_setup(struct device_node *np)
if (!IS_ERR(clk))
of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
+CLK_OF_DECLARE(nomadik_pll_clk,
+ "st,nomadik-pll-clock", of_nomadik_pll_setup);
static void __init of_nomadik_hclk_setup(struct device_node *np)
{
@@ -456,6 +534,9 @@ static void __init of_nomadik_hclk_setup(struct device_node *np)
const char *clk_name = np->name;
const char *parent_name;
+ if (!src_base)
+ nomadik_src_init();
+
parent_name = of_clk_get_parent_name(np, 0);
/*
* The HCLK divides PLL1 with 1 (passthru), 2, 3 or 4.
@@ -468,6 +549,8 @@ static void __init of_nomadik_hclk_setup(struct device_node *np)
if (!IS_ERR(clk))
of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
+CLK_OF_DECLARE(nomadik_hclk_clk,
+ "st,nomadik-hclk-clock", of_nomadik_hclk_setup);
static void __init of_nomadik_src_clk_setup(struct device_node *np)
{
@@ -476,6 +559,9 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
const char *parent_name;
u32 clk_id;
+ if (!src_base)
+ nomadik_src_init();
+
if (of_property_read_u32(np, "clock-id", &clk_id)) {
pr_err("%s: SRC clock \"%s\" missing clock-id property\n",
__func__, clk_name);
@@ -486,102 +572,5 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
if (!IS_ERR(clk))
of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
-
-static const struct of_device_id nomadik_src_match[] __initconst = {
- { .compatible = "stericsson,nomadik-src" },
- { /* sentinel */ }
-};
-
-static const struct of_device_id nomadik_src_clk_match[] __initconst = {
- {
- .compatible = "fixed-clock",
- .data = of_fixed_clk_setup,
- },
- {
- .compatible = "fixed-factor-clock",
- .data = of_fixed_factor_clk_setup,
- },
- {
- .compatible = "st,nomadik-pll-clock",
- .data = of_nomadik_pll_setup,
- },
- {
- .compatible = "st,nomadik-hclk-clock",
- .data = of_nomadik_hclk_setup,
- },
- {
- .compatible = "st,nomadik-src-clock",
- .data = of_nomadik_src_clk_setup,
- },
- { /* sentinel */ }
-};
-
-static int nomadik_clk_reboot_handler(struct notifier_block *this,
- unsigned long code,
- void *unused)
-{
- u32 val;
-
- /* The main chrystal need to be enabled for reboot to work */
- val = readl(src_base + SRC_XTALCR);
- val &= ~SRC_XTALCR_MXTALOVER;
- val |= SRC_XTALCR_MXTALEN;
- pr_crit("force-enabling MXTALO\n");
- writel(val, src_base + SRC_XTALCR);
- return NOTIFY_OK;
-}
-
-static struct notifier_block nomadik_clk_reboot_notifier = {
- .notifier_call = nomadik_clk_reboot_handler,
-};
-
-void __init nomadik_clk_init(void)
-{
- struct device_node *np;
- u32 val;
-
- np = of_find_matching_node(NULL, nomadik_src_match);
- if (!np) {
- pr_crit("no matching node for SRC, aborting clock init\n");
- return;
- }
- src_base = of_iomap(np, 0);
- if (!src_base) {
- pr_err("%s: must have src parent node with REGS (%s)\n",
- __func__, np->name);
- return;
- }
-
- /* Set all timers to use the 2.4 MHz TIMCLK */
- val = readl(src_base + SRC_CR);
- val |= SRC_CR_T0_ENSEL;
- val |= SRC_CR_T1_ENSEL;
- val |= SRC_CR_T2_ENSEL;
- val |= SRC_CR_T3_ENSEL;
- val |= SRC_CR_T4_ENSEL;
- val |= SRC_CR_T5_ENSEL;
- val |= SRC_CR_T6_ENSEL;
- val |= SRC_CR_T7_ENSEL;
- writel(val, src_base + SRC_CR);
-
- val = readl(src_base + SRC_XTALCR);
- pr_info("SXTALO is %s\n",
- (val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled");
- pr_info("MXTAL is %s\n",
- (val & SRC_XTALCR_MXTALSTAT) ? "enabled" : "disabled");
- if (of_property_read_bool(np, "disable-sxtalo")) {
- /* The machine uses an external oscillator circuit */
- val |= SRC_XTALCR_SXTALDIS;
- pr_info("disabling SXTALO\n");
- }
- if (of_property_read_bool(np, "disable-mxtalo")) {
- /* Disable this too: also run by external oscillator */
- val |= SRC_XTALCR_MXTALOVER;
- val &= ~SRC_XTALCR_MXTALEN;
- pr_info("disabling MXTALO\n");
- }
- writel(val, src_base + SRC_XTALCR);
- register_reboot_notifier(&nomadik_clk_reboot_notifier);
-
- of_clk_init(nomadik_src_clk_match);
-}
+CLK_OF_DECLARE(nomadik_src_clk,
+ "st,nomadik-src-clock", of_nomadik_src_clk_setup);
diff --git a/drivers/clk/clk-ppc-corenet.c b/drivers/clk/clk-ppc-corenet.c
index e9587073bd32..c4f76ed914b0 100644
--- a/drivers/clk/clk-ppc-corenet.c
+++ b/drivers/clk/clk-ppc-corenet.c
@@ -11,6 +11,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/of.h>
#include <linux/slab.h>
diff --git a/drivers/clk/clk-prima2.c b/drivers/clk/clk-prima2.c
index 5ab95f1ad579..6c15e3316137 100644
--- a/drivers/clk/clk-prima2.c
+++ b/drivers/clk/clk-prima2.c
@@ -1015,16 +1015,6 @@ static struct clk_std clk_usb1 = {
},
};
-static struct of_device_id clkc_ids[] = {
- { .compatible = "sirf,prima2-clkc" },
- {},
-};
-
-static struct of_device_id rsc_ids[] = {
- { .compatible = "sirf,prima2-rsc" },
- {},
-};
-
enum prima2_clk_index {
/* 0 1 2 3 4 5 6 7 8 9 */
rtc, osc, pll1, pll2, pll3, mem, sys, security, dsp, gps,
@@ -1082,24 +1072,16 @@ static struct clk_hw *prima2_clk_hw_array[maxclk] __initdata = {
static struct clk *prima2_clks[maxclk];
static struct clk_onecell_data clk_data;
-void __init sirfsoc_of_clk_init(void)
+static void __init sirfsoc_clk_init(struct device_node *np)
{
- struct device_node *np;
+ struct device_node *rscnp;
int i;
- np = of_find_matching_node(NULL, rsc_ids);
- if (!np)
- panic("unable to find compatible rsc node in dtb\n");
-
- sirfsoc_rsc_vbase = of_iomap(np, 0);
+ rscnp = of_find_compatible_node(NULL, NULL, "sirf,prima2-rsc");
+ sirfsoc_rsc_vbase = of_iomap(rscnp, 0);
if (!sirfsoc_rsc_vbase)
panic("unable to map rsc registers\n");
-
- of_node_put(np);
-
- np = of_find_matching_node(NULL, clkc_ids);
- if (!np)
- return;
+ of_node_put(rscnp);
sirfsoc_clk_vbase = of_iomap(np, 0);
if (!sirfsoc_clk_vbase)
@@ -1124,3 +1106,4 @@ void __init sirfsoc_of_clk_init(void)
of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
}
+CLK_OF_DECLARE(sirfsoc_clk, "sirf,prima2-clkc", sirfsoc_clk_init);
diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
index 82306f5fb9c2..7fd5c5e9e25d 100644
--- a/drivers/clk/clk-vt8500.c
+++ b/drivers/clk/clk-vt8500.c
@@ -15,11 +15,14 @@
#include <linux/io.h>
#include <linux/of.h>
+#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/bitops.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
+#define LEGACY_PMC_BASE 0xD8130000
+
/* All clocks share the same lock as none can be changed concurrently */
static DEFINE_SPINLOCK(_lock);
@@ -53,6 +56,21 @@ struct clk_pll {
static void __iomem *pmc_base;
+static __init void vtwm_set_pmc_base(void)
+{
+ struct device_node *np =
+ of_find_compatible_node(NULL, NULL, "via,vt8500-pmc");
+
+ if (np)
+ pmc_base = of_iomap(np, 0);
+ else
+ pmc_base = ioremap(LEGACY_PMC_BASE, 0x1000);
+ of_node_put(np);
+
+ if (!pmc_base)
+ pr_err("%s:of_iomap(pmc) failed\n", __func__);
+}
+
#define to_clk_device(_hw) container_of(_hw, struct clk_device, hw)
#define VT8500_PMC_BUSY_MASK 0x18
@@ -222,6 +240,9 @@ static __init void vtwm_device_clk_init(struct device_node *node)
int rc;
int clk_init_flags = 0;
+ if (!pmc_base)
+ vtwm_set_pmc_base();
+
dev_clk = kzalloc(sizeof(*dev_clk), GFP_KERNEL);
if (WARN_ON(!dev_clk))
return;
@@ -636,6 +657,9 @@ static __init void vtwm_pll_clk_init(struct device_node *node, int pll_type)
struct clk_init_data init;
int rc;
+ if (!pmc_base)
+ vtwm_set_pmc_base();
+
rc = of_property_read_u32(node, "reg", &reg);
if (WARN_ON(rc))
return;
@@ -694,13 +718,3 @@ static void __init wm8850_pll_init(struct device_node *node)
vtwm_pll_clk_init(node, PLL_TYPE_WM8850);
}
CLK_OF_DECLARE(wm8850_pll, "wm,wm8850-pll-clock", wm8850_pll_init);
-
-void __init vtwm_clk_init(void __iomem *base)
-{
- if (!base)
- return;
-
- pmc_base = base;
-
- of_clk_init(NULL);
-}
diff --git a/drivers/clk/clk-wm831x.c b/drivers/clk/clk-wm831x.c
index 805b4c344006..b131041c8f48 100644
--- a/drivers/clk/clk-wm831x.c
+++ b/drivers/clk/clk-wm831x.c
@@ -391,14 +391,8 @@ static int wm831x_clk_probe(struct platform_device *pdev)
return 0;
}
-static int wm831x_clk_remove(struct platform_device *pdev)
-{
- return 0;
-}
-
static struct platform_driver wm831x_clk_driver = {
.probe = wm831x_clk_probe,
- .remove = wm831x_clk_remove,
.driver = {
.name = "wm831x-clk",
.owner = THIS_MODULE,
diff --git a/drivers/clk/clk-xgene.c b/drivers/clk/clk-xgene.c
new file mode 100644
index 000000000000..dd8a62d8f11f
--- /dev/null
+++ b/drivers/clk/clk-xgene.c
@@ -0,0 +1,521 @@
+/*
+ * clk-xgene.c - AppliedMicro X-Gene Clock Interface
+ *
+ * Copyright (c) 2013, Applied Micro Circuits Corporation
+ * Author: Loc Ho <lho@apm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <asm/setup.h>
+
+/* Register SCU_PCPPLL bit fields */
+#define N_DIV_RD(src) (((src) & 0x000001ff))
+
+/* Register SCU_SOCPLL bit fields */
+#define CLKR_RD(src) (((src) & 0x07000000)>>24)
+#define CLKOD_RD(src) (((src) & 0x00300000)>>20)
+#define REGSPEC_RESET_F1_MASK 0x00010000
+#define CLKF_RD(src) (((src) & 0x000001ff))
+
+#define XGENE_CLK_DRIVER_VER "0.1"
+
+static DEFINE_SPINLOCK(clk_lock);
+
+static inline u32 xgene_clk_read(void *csr)
+{
+ return readl_relaxed(csr);
+}
+
+static inline void xgene_clk_write(u32 data, void *csr)
+{
+ return writel_relaxed(data, csr);
+}
+
+/* PLL Clock */
+enum xgene_pll_type {
+ PLL_TYPE_PCP = 0,
+ PLL_TYPE_SOC = 1,
+};
+
+struct xgene_clk_pll {
+ struct clk_hw hw;
+ const char *name;
+ void __iomem *reg;
+ spinlock_t *lock;
+ u32 pll_offset;
+ enum xgene_pll_type type;
+};
+
+#define to_xgene_clk_pll(_hw) container_of(_hw, struct xgene_clk_pll, hw)
+
+static int xgene_clk_pll_is_enabled(struct clk_hw *hw)
+{
+ struct xgene_clk_pll *pllclk = to_xgene_clk_pll(hw);
+ u32 data;
+
+ data = xgene_clk_read(pllclk->reg + pllclk->pll_offset);
+ pr_debug("%s pll %s\n", pllclk->name,
+ data & REGSPEC_RESET_F1_MASK ? "disabled" : "enabled");
+
+ return data & REGSPEC_RESET_F1_MASK ? 0 : 1;
+}
+
+static unsigned long xgene_clk_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct xgene_clk_pll *pllclk = to_xgene_clk_pll(hw);
+ unsigned long fref;
+ unsigned long fvco;
+ u32 pll;
+ u32 nref;
+ u32 nout;
+ u32 nfb;
+
+ pll = xgene_clk_read(pllclk->reg + pllclk->pll_offset);
+
+ if (pllclk->type == PLL_TYPE_PCP) {
+ /*
+ * PLL VCO = Reference clock * NF
+ * PCP PLL = PLL_VCO / 2
+ */
+ nout = 2;
+ fvco = parent_rate * (N_DIV_RD(pll) + 4);
+ } else {
+ /*
+ * Fref = Reference Clock / NREF;
+ * Fvco = Fref * NFB;
+ * Fout = Fvco / NOUT;
+ */
+ nref = CLKR_RD(pll) + 1;
+ nout = CLKOD_RD(pll) + 1;
+ nfb = CLKF_RD(pll);
+ fref = parent_rate / nref;
+ fvco = fref * nfb;
+ }
+ pr_debug("%s pll recalc rate %ld parent %ld\n", pllclk->name,
+ fvco / nout, parent_rate);
+
+ return fvco / nout;
+}
+
+const struct clk_ops xgene_clk_pll_ops = {
+ .is_enabled = xgene_clk_pll_is_enabled,
+ .recalc_rate = xgene_clk_pll_recalc_rate,
+};
+
+static struct clk *xgene_register_clk_pll(struct device *dev,
+ const char *name, const char *parent_name,
+ unsigned long flags, void __iomem *reg, u32 pll_offset,
+ u32 type, spinlock_t *lock)
+{
+ struct xgene_clk_pll *apmclk;
+ struct clk *clk;
+ struct clk_init_data init;
+
+ /* allocate the APM clock structure */
+ apmclk = kzalloc(sizeof(*apmclk), GFP_KERNEL);
+ if (!apmclk) {
+ pr_err("%s: could not allocate APM clk\n", __func__);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ init.name = name;
+ init.ops = &xgene_clk_pll_ops;
+ init.flags = flags;
+ init.parent_names = parent_name ? &parent_name : NULL;
+ init.num_parents = parent_name ? 1 : 0;
+
+ apmclk->name = name;
+ apmclk->reg = reg;
+ apmclk->lock = lock;
+ apmclk->pll_offset = pll_offset;
+ apmclk->type = type;
+ apmclk->hw.init = &init;
+
+ /* Register the clock */
+ clk = clk_register(dev, &apmclk->hw);
+ if (IS_ERR(clk)) {
+ pr_err("%s: could not register clk %s\n", __func__, name);
+ kfree(apmclk);
+ return NULL;
+ }
+ return clk;
+}
+
+static void xgene_pllclk_init(struct device_node *np, enum xgene_pll_type pll_type)
+{
+ const char *clk_name = np->full_name;
+ struct clk *clk;
+ void *reg;
+
+ reg = of_iomap(np, 0);
+ if (reg == NULL) {
+ pr_err("Unable to map CSR register for %s\n", np->full_name);
+ return;
+ }
+ of_property_read_string(np, "clock-output-names", &clk_name);
+ clk = xgene_register_clk_pll(NULL,
+ clk_name, of_clk_get_parent_name(np, 0),
+ CLK_IS_ROOT, reg, 0, pll_type, &clk_lock);
+ if (!IS_ERR(clk)) {
+ of_clk_add_provider(np, of_clk_src_simple_get, clk);
+ clk_register_clkdev(clk, clk_name, NULL);
+ pr_debug("Add %s clock PLL\n", clk_name);
+ }
+}
+
+static void xgene_socpllclk_init(struct device_node *np)
+{
+ xgene_pllclk_init(np, PLL_TYPE_SOC);
+}
+
+static void xgene_pcppllclk_init(struct device_node *np)
+{
+ xgene_pllclk_init(np, PLL_TYPE_PCP);
+}
+
+/* IP Clock */
+struct xgene_dev_parameters {
+ void __iomem *csr_reg; /* CSR for IP clock */
+ u32 reg_clk_offset; /* Offset to clock enable CSR */
+ u32 reg_clk_mask; /* Mask bit for clock enable */
+ u32 reg_csr_offset; /* Offset to CSR reset */
+ u32 reg_csr_mask; /* Mask bit for disable CSR reset */
+ void __iomem *divider_reg; /* CSR for divider */
+ u32 reg_divider_offset; /* Offset to divider register */
+ u32 reg_divider_shift; /* Bit shift to divider field */
+ u32 reg_divider_width; /* Width of the bit to divider field */
+};
+
+struct xgene_clk {
+ struct clk_hw hw;
+ const char *name;
+ spinlock_t *lock;
+ struct xgene_dev_parameters param;
+};
+
+#define to_xgene_clk(_hw) container_of(_hw, struct xgene_clk, hw)
+
+static int xgene_clk_enable(struct clk_hw *hw)
+{
+ struct xgene_clk *pclk = to_xgene_clk(hw);
+ unsigned long flags = 0;
+ u32 data;
+
+ if (pclk->lock)
+ spin_lock_irqsave(pclk->lock, flags);
+
+ if (pclk->param.csr_reg != NULL) {
+ pr_debug("%s clock enabled\n", pclk->name);
+ /* First enable the clock */
+ data = xgene_clk_read(pclk->param.csr_reg +
+ pclk->param.reg_clk_offset);
+ data |= pclk->param.reg_clk_mask;
+ xgene_clk_write(data, pclk->param.csr_reg +
+ pclk->param.reg_clk_offset);
+ pr_debug("%s clock PADDR base 0x%016LX clk offset 0x%08X mask 0x%08X value 0x%08X\n",
+ pclk->name, __pa(pclk->param.csr_reg),
+ pclk->param.reg_clk_offset, pclk->param.reg_clk_mask,
+ data);
+
+ /* Second enable the CSR */
+ data = xgene_clk_read(pclk->param.csr_reg +
+ pclk->param.reg_csr_offset);
+ data &= ~pclk->param.reg_csr_mask;
+ xgene_clk_write(data, pclk->param.csr_reg +
+ pclk->param.reg_csr_offset);
+ pr_debug("%s CSR RESET PADDR base 0x%016LX csr offset 0x%08X mask 0x%08X value 0x%08X\n",
+ pclk->name, __pa(pclk->param.csr_reg),
+ pclk->param.reg_csr_offset, pclk->param.reg_csr_mask,
+ data);
+ }
+
+ if (pclk->lock)
+ spin_unlock_irqrestore(pclk->lock, flags);
+
+ return 0;
+}
+
+static void xgene_clk_disable(struct clk_hw *hw)
+{
+ struct xgene_clk *pclk = to_xgene_clk(hw);
+ unsigned long flags = 0;
+ u32 data;
+
+ if (pclk->lock)
+ spin_lock_irqsave(pclk->lock, flags);
+
+ if (pclk->param.csr_reg != NULL) {
+ pr_debug("%s clock disabled\n", pclk->name);
+ /* First put the CSR in reset */
+ data = xgene_clk_read(pclk->param.csr_reg +
+ pclk->param.reg_csr_offset);
+ data |= pclk->param.reg_csr_mask;
+ xgene_clk_write(data, pclk->param.csr_reg +
+ pclk->param.reg_csr_offset);
+
+ /* Second disable the clock */
+ data = xgene_clk_read(pclk->param.csr_reg +
+ pclk->param.reg_clk_offset);
+ data &= ~pclk->param.reg_clk_mask;
+ xgene_clk_write(data, pclk->param.csr_reg +
+ pclk->param.reg_clk_offset);
+ }
+
+ if (pclk->lock)
+ spin_unlock_irqrestore(pclk->lock, flags);
+}
+
+static int xgene_clk_is_enabled(struct clk_hw *hw)
+{
+ struct xgene_clk *pclk = to_xgene_clk(hw);
+ u32 data = 0;
+
+ if (pclk->param.csr_reg != NULL) {
+ pr_debug("%s clock checking\n", pclk->name);
+ data = xgene_clk_read(pclk->param.csr_reg +
+ pclk->param.reg_clk_offset);
+ pr_debug("%s clock is %s\n", pclk->name,
+ data & pclk->param.reg_clk_mask ? "enabled" :
+ "disabled");
+ }
+
+ if (pclk->param.csr_reg == NULL)
+ return 1;
+ return data & pclk->param.reg_clk_mask ? 1 : 0;
+}
+
+static unsigned long xgene_clk_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct xgene_clk *pclk = to_xgene_clk(hw);
+ u32 data;
+
+ if (pclk->param.divider_reg) {
+ data = xgene_clk_read(pclk->param.divider_reg +
+ pclk->param.reg_divider_offset);
+ data >>= pclk->param.reg_divider_shift;
+ data &= (1 << pclk->param.reg_divider_width) - 1;
+
+ pr_debug("%s clock recalc rate %ld parent %ld\n",
+ pclk->name, parent_rate / data, parent_rate);
+ return parent_rate / data;
+ } else {
+ pr_debug("%s clock recalc rate %ld parent %ld\n",
+ pclk->name, parent_rate, parent_rate);
+ return parent_rate;
+ }
+}
+
+static int xgene_clk_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct xgene_clk *pclk = to_xgene_clk(hw);
+ unsigned long flags = 0;
+ u32 data;
+ u32 divider;
+ u32 divider_save;
+
+ if (pclk->lock)
+ spin_lock_irqsave(pclk->lock, flags);
+
+ if (pclk->param.divider_reg) {
+ /* Let's compute the divider */
+ if (rate > parent_rate)
+ rate = parent_rate;
+ divider_save = divider = parent_rate / rate; /* Rounded down */
+ divider &= (1 << pclk->param.reg_divider_width) - 1;
+ divider <<= pclk->param.reg_divider_shift;
+
+ /* Set new divider */
+ data = xgene_clk_read(pclk->param.divider_reg +
+ pclk->param.reg_divider_offset);
+ data &= ~((1 << pclk->param.reg_divider_width) - 1);
+ data |= divider;
+ xgene_clk_write(data, pclk->param.divider_reg +
+ pclk->param.reg_divider_offset);
+ pr_debug("%s clock set rate %ld\n", pclk->name,
+ parent_rate / divider_save);
+ } else {
+ divider_save = 1;
+ }
+
+ if (pclk->lock)
+ spin_unlock_irqrestore(pclk->lock, flags);
+
+ return parent_rate / divider_save;
+}
+
+static long xgene_clk_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *prate)
+{
+ struct xgene_clk *pclk = to_xgene_clk(hw);
+ unsigned long parent_rate = *prate;
+ u32 divider;
+
+ if (pclk->param.divider_reg) {
+ /* Let's compute the divider */
+ if (rate > parent_rate)
+ rate = parent_rate;
+ divider = parent_rate / rate; /* Rounded down */
+ } else {
+ divider = 1;
+ }
+
+ return parent_rate / divider;
+}
+
+const struct clk_ops xgene_clk_ops = {
+ .enable = xgene_clk_enable,
+ .disable = xgene_clk_disable,
+ .is_enabled = xgene_clk_is_enabled,
+ .recalc_rate = xgene_clk_recalc_rate,
+ .set_rate = xgene_clk_set_rate,
+ .round_rate = xgene_clk_round_rate,
+};
+
+static struct clk *xgene_register_clk(struct device *dev,
+ const char *name, const char *parent_name,
+ struct xgene_dev_parameters *parameters, spinlock_t *lock)
+{
+ struct xgene_clk *apmclk;
+ struct clk *clk;
+ struct clk_init_data init;
+ int rc;
+
+ /* allocate the APM clock structure */
+ apmclk = kzalloc(sizeof(*apmclk), GFP_KERNEL);
+ if (!apmclk) {
+ pr_err("%s: could not allocate APM clk\n", __func__);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ init.name = name;
+ init.ops = &xgene_clk_ops;
+ init.flags = 0;
+ init.parent_names = parent_name ? &parent_name : NULL;
+ init.num_parents = parent_name ? 1 : 0;
+
+ apmclk->name = name;
+ apmclk->lock = lock;
+ apmclk->hw.init = &init;
+ apmclk->param = *parameters;
+
+ /* Register the clock */
+ clk = clk_register(dev, &apmclk->hw);
+ if (IS_ERR(clk)) {
+ pr_err("%s: could not register clk %s\n", __func__, name);
+ kfree(apmclk);
+ return clk;
+ }
+
+ /* Register the clock for lookup */
+ rc = clk_register_clkdev(clk, name, NULL);
+ if (rc != 0) {
+ pr_err("%s: could not register lookup clk %s\n",
+ __func__, name);
+ }
+ return clk;
+}
+
+static void __init xgene_devclk_init(struct device_node *np)
+{
+ const char *clk_name = np->full_name;
+ struct clk *clk;
+ struct resource res;
+ int rc;
+ struct xgene_dev_parameters parameters;
+ int i;
+
+ /* Check if the entry is disabled */
+ if (!of_device_is_available(np))
+ return;
+
+ /* Parse the DTS register for resource */
+ parameters.csr_reg = NULL;
+ parameters.divider_reg = NULL;
+ for (i = 0; i < 2; i++) {
+ void *map_res;
+ rc = of_address_to_resource(np, i, &res);
+ if (rc != 0) {
+ if (i == 0) {
+ pr_err("no DTS register for %s\n",
+ np->full_name);
+ return;
+ }
+ break;
+ }
+ map_res = of_iomap(np, i);
+ if (map_res == NULL) {
+ pr_err("Unable to map resource %d for %s\n",
+ i, np->full_name);
+ goto err;
+ }
+ if (strcmp(res.name, "div-reg") == 0)
+ parameters.divider_reg = map_res;
+ else /* if (strcmp(res->name, "csr-reg") == 0) */
+ parameters.csr_reg = map_res;
+ }
+ if (of_property_read_u32(np, "csr-offset", &parameters.reg_csr_offset))
+ parameters.reg_csr_offset = 0;
+ if (of_property_read_u32(np, "csr-mask", &parameters.reg_csr_mask))
+ parameters.reg_csr_mask = 0xF;
+ if (of_property_read_u32(np, "enable-offset",
+ &parameters.reg_clk_offset))
+ parameters.reg_clk_offset = 0x8;
+ if (of_property_read_u32(np, "enable-mask", &parameters.reg_clk_mask))
+ parameters.reg_clk_mask = 0xF;
+ if (of_property_read_u32(np, "divider-offset",
+ &parameters.reg_divider_offset))
+ parameters.reg_divider_offset = 0;
+ if (of_property_read_u32(np, "divider-width",
+ &parameters.reg_divider_width))
+ parameters.reg_divider_width = 0;
+ if (of_property_read_u32(np, "divider-shift",
+ &parameters.reg_divider_shift))
+ parameters.reg_divider_shift = 0;
+ of_property_read_string(np, "clock-output-names", &clk_name);
+
+ clk = xgene_register_clk(NULL, clk_name,
+ of_clk_get_parent_name(np, 0), &parameters, &clk_lock);
+ if (IS_ERR(clk))
+ goto err;
+ pr_debug("Add %s clock\n", clk_name);
+ rc = of_clk_add_provider(np, of_clk_src_simple_get, clk);
+ if (rc != 0)
+ pr_err("%s: could register provider clk %s\n", __func__,
+ np->full_name);
+
+ return;
+
+err:
+ if (parameters.csr_reg)
+ iounmap(parameters.csr_reg);
+ if (parameters.divider_reg)
+ iounmap(parameters.divider_reg);
+}
+
+CLK_OF_DECLARE(xgene_socpll_clock, "apm,xgene-socpll-clock", xgene_socpllclk_init);
+CLK_OF_DECLARE(xgene_pcppll_clock, "apm,xgene-pcppll-clock", xgene_pcppllclk_init);
+CLK_OF_DECLARE(xgene_dev_clock, "apm,xgene-device-clock", xgene_devclk_init);
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index a004769528e6..2cf2ea6b77a1 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1080,13 +1080,16 @@ unsigned long clk_get_rate(struct clk *clk)
}
EXPORT_SYMBOL_GPL(clk_get_rate);
-static u8 clk_fetch_parent_index(struct clk *clk, struct clk *parent)
+static int clk_fetch_parent_index(struct clk *clk, struct clk *parent)
{
- u8 i;
+ int i;
- if (!clk->parents)
- clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
- GFP_KERNEL);
+ if (!clk->parents) {
+ clk->parents = kcalloc(clk->num_parents,
+ sizeof(struct clk *), GFP_KERNEL);
+ if (!clk->parents)
+ return -ENOMEM;
+ }
/*
* find index of new parent clock using cached parent ptrs,
@@ -1094,16 +1097,19 @@ static u8 clk_fetch_parent_index(struct clk *clk, struct clk *parent)
* them now to avoid future calls to __clk_lookup.
*/
for (i = 0; i < clk->num_parents; i++) {
- if (clk->parents && clk->parents[i] == parent)
- break;
- else if (!strcmp(clk->parent_names[i], parent->name)) {
- if (clk->parents)
- clk->parents[i] = __clk_lookup(parent->name);
- break;
+ if (clk->parents[i] == parent)
+ return i;
+
+ if (clk->parents[i])
+ continue;
+
+ if (!strcmp(clk->parent_names[i], parent->name)) {
+ clk->parents[i] = __clk_lookup(parent->name);
+ return i;
}
}
- return i;
+ return -EINVAL;
}
static void clk_reparent(struct clk *clk, struct clk *new_parent)
@@ -1265,7 +1271,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate)
struct clk *old_parent, *parent;
unsigned long best_parent_rate = 0;
unsigned long new_rate;
- u8 p_index = 0;
+ int p_index = 0;
/* sanity */
if (IS_ERR_OR_NULL(clk))
@@ -1306,7 +1312,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate)
/* try finding the new parent index */
if (parent) {
p_index = clk_fetch_parent_index(clk, parent);
- if (p_index == clk->num_parents) {
+ if (p_index < 0) {
pr_debug("%s: clk %s can not be parent of clk %s\n",
__func__, parent->name, clk->name);
return NULL;
@@ -1532,7 +1538,7 @@ static struct clk *__clk_init_parent(struct clk *clk)
if (!clk->parents)
clk->parents =
- kzalloc((sizeof(struct clk*) * clk->num_parents),
+ kcalloc(clk->num_parents, sizeof(struct clk *),
GFP_KERNEL);
ret = clk_get_parent_by_index(clk, index);
@@ -1568,7 +1574,7 @@ void __clk_reparent(struct clk *clk, struct clk *new_parent)
int clk_set_parent(struct clk *clk, struct clk *parent)
{
int ret = 0;
- u8 p_index = 0;
+ int p_index = 0;
unsigned long p_rate = 0;
if (!clk)
@@ -1597,10 +1603,10 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
if (parent) {
p_index = clk_fetch_parent_index(clk, parent);
p_rate = parent->rate;
- if (p_index == clk->num_parents) {
+ if (p_index < 0) {
pr_debug("%s: clk %s can not be parent of clk %s\n",
__func__, parent->name, clk->name);
- ret = -EINVAL;
+ ret = p_index;
goto out;
}
}
@@ -1689,8 +1695,8 @@ int __clk_init(struct device *dev, struct clk *clk)
* for clock drivers to statically initialize clk->parents.
*/
if (clk->num_parents > 1 && !clk->parents) {
- clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
- GFP_KERNEL);
+ clk->parents = kcalloc(clk->num_parents, sizeof(struct clk *),
+ GFP_KERNEL);
/*
* __clk_lookup returns NULL for parents that have not been
* clk_init'd; thus any access to clk->parents[] must check
@@ -1830,8 +1836,8 @@ static int _clk_register(struct device *dev, struct clk_hw *hw, struct clk *clk)
hw->clk = clk;
/* allocate local copy in case parent_names is __initdata */
- clk->parent_names = kzalloc((sizeof(char*) * clk->num_parents),
- GFP_KERNEL);
+ clk->parent_names = kcalloc(clk->num_parents, sizeof(char *),
+ GFP_KERNEL);
if (!clk->parent_names) {
pr_err("%s: could not allocate clk->parent_names\n", __func__);
@@ -2196,6 +2202,12 @@ struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec)
return clk;
}
+int of_clk_get_parent_count(struct device_node *np)
+{
+ return of_count_phandle_with_args(np, "clocks", "#clock-cells");
+}
+EXPORT_SYMBOL_GPL(of_clk_get_parent_count);
+
const char *of_clk_get_parent_name(struct device_node *np, int index)
{
struct of_phandle_args clkspec;
diff --git a/drivers/clk/keystone/Makefile b/drivers/clk/keystone/Makefile
new file mode 100644
index 000000000000..0477cf63f132
--- /dev/null
+++ b/drivers/clk/keystone/Makefile
@@ -0,0 +1 @@
+obj-y += pll.o gate.o
diff --git a/drivers/clk/keystone/gate.c b/drivers/clk/keystone/gate.c
new file mode 100644
index 000000000000..1f333bcfc22e
--- /dev/null
+++ b/drivers/clk/keystone/gate.c
@@ -0,0 +1,264 @@
+/*
+ * Clock driver for Keystone 2 based devices
+ *
+ * Copyright (C) 2013 Texas Instruments.
+ * Murali Karicheri <m-karicheri2@ti.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of.h>
+#include <linux/module.h>
+
+/* PSC register offsets */
+#define PTCMD 0x120
+#define PTSTAT 0x128
+#define PDSTAT 0x200
+#define PDCTL 0x300
+#define MDSTAT 0x800
+#define MDCTL 0xa00
+
+/* PSC module states */
+#define PSC_STATE_SWRSTDISABLE 0
+#define PSC_STATE_SYNCRST 1
+#define PSC_STATE_DISABLE 2
+#define PSC_STATE_ENABLE 3
+
+#define MDSTAT_STATE_MASK 0x3f
+#define MDSTAT_MCKOUT BIT(12)
+#define PDSTAT_STATE_MASK 0x1f
+#define MDCTL_FORCE BIT(31)
+#define MDCTL_LRESET BIT(8)
+#define PDCTL_NEXT BIT(0)
+
+/* Maximum timeout to bail out state transition for module */
+#define STATE_TRANS_MAX_COUNT 0xffff
+
+static void __iomem *domain_transition_base;
+
+/**
+ * struct clk_psc_data - PSC data
+ * @control_base: Base address for a PSC control
+ * @domain_base: Base address for a PSC domain
+ * @domain_id: PSC domain id number
+ */
+struct clk_psc_data {
+ void __iomem *control_base;
+ void __iomem *domain_base;
+ u32 domain_id;
+};
+
+/**
+ * struct clk_psc - PSC clock structure
+ * @hw: clk_hw for the psc
+ * @psc_data: PSC driver specific data
+ * @lock: Spinlock used by the driver
+ */
+struct clk_psc {
+ struct clk_hw hw;
+ struct clk_psc_data *psc_data;
+ spinlock_t *lock;
+};
+
+static DEFINE_SPINLOCK(psc_lock);
+
+#define to_clk_psc(_hw) container_of(_hw, struct clk_psc, hw)
+
+static void psc_config(void __iomem *control_base, void __iomem *domain_base,
+ u32 next_state, u32 domain_id)
+{
+ u32 ptcmd, pdstat, pdctl, mdstat, mdctl, ptstat;
+ u32 count = STATE_TRANS_MAX_COUNT;
+
+ mdctl = readl(control_base + MDCTL);
+ mdctl &= ~MDSTAT_STATE_MASK;
+ mdctl |= next_state;
+ /* For disable, we always put the module in local reset */
+ if (next_state == PSC_STATE_DISABLE)
+ mdctl &= ~MDCTL_LRESET;
+ writel(mdctl, control_base + MDCTL);
+
+ pdstat = readl(domain_base + PDSTAT);
+ if (!(pdstat & PDSTAT_STATE_MASK)) {
+ pdctl = readl(domain_base + PDCTL);
+ pdctl |= PDCTL_NEXT;
+ writel(pdctl, domain_base + PDCTL);
+ }
+
+ ptcmd = 1 << domain_id;
+ writel(ptcmd, domain_transition_base + PTCMD);
+ do {
+ ptstat = readl(domain_transition_base + PTSTAT);
+ } while (((ptstat >> domain_id) & 1) && count--);
+
+ count = STATE_TRANS_MAX_COUNT;
+ do {
+ mdstat = readl(control_base + MDSTAT);
+ } while (!((mdstat & MDSTAT_STATE_MASK) == next_state) && count--);
+}
+
+static int keystone_clk_is_enabled(struct clk_hw *hw)
+{
+ struct clk_psc *psc = to_clk_psc(hw);
+ struct clk_psc_data *data = psc->psc_data;
+ u32 mdstat = readl(data->control_base + MDSTAT);
+
+ return (mdstat & MDSTAT_MCKOUT) ? 1 : 0;
+}
+
+static int keystone_clk_enable(struct clk_hw *hw)
+{
+ struct clk_psc *psc = to_clk_psc(hw);
+ struct clk_psc_data *data = psc->psc_data;
+ unsigned long flags = 0;
+
+ if (psc->lock)
+ spin_lock_irqsave(psc->lock, flags);
+
+ psc_config(data->control_base, data->domain_base,
+ PSC_STATE_ENABLE, data->domain_id);
+
+ if (psc->lock)
+ spin_unlock_irqrestore(psc->lock, flags);
+
+ return 0;
+}
+
+static void keystone_clk_disable(struct clk_hw *hw)
+{
+ struct clk_psc *psc = to_clk_psc(hw);
+ struct clk_psc_data *data = psc->psc_data;
+ unsigned long flags = 0;
+
+ if (psc->lock)
+ spin_lock_irqsave(psc->lock, flags);
+
+ psc_config(data->control_base, data->domain_base,
+ PSC_STATE_DISABLE, data->domain_id);
+
+ if (psc->lock)
+ spin_unlock_irqrestore(psc->lock, flags);
+}
+
+static const struct clk_ops clk_psc_ops = {
+ .enable = keystone_clk_enable,
+ .disable = keystone_clk_disable,
+ .is_enabled = keystone_clk_is_enabled,
+};
+
+/**
+ * clk_register_psc - register psc clock
+ * @dev: device that is registering this clock
+ * @name: name of this clock
+ * @parent_name: name of clock's parent
+ * @psc_data: platform data to configure this clock
+ * @lock: spinlock used by this clock
+ */
+static struct clk *clk_register_psc(struct device *dev,
+ const char *name,
+ const char *parent_name,
+ struct clk_psc_data *psc_data,
+ spinlock_t *lock)
+{
+ struct clk_init_data init;
+ struct clk_psc *psc;
+ struct clk *clk;
+
+ psc = kzalloc(sizeof(*psc), GFP_KERNEL);
+ if (!psc)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = name;
+ init.ops = &clk_psc_ops;
+ init.parent_names = (parent_name ? &parent_name : NULL);
+ init.num_parents = (parent_name ? 1 : 0);
+
+ psc->psc_data = psc_data;
+ psc->lock = lock;
+ psc->hw.init = &init;
+
+ clk = clk_register(NULL, &psc->hw);
+ if (IS_ERR(clk))
+ kfree(psc);
+
+ return clk;
+}
+
+/**
+ * of_psc_clk_init - initialize psc clock through DT
+ * @node: device tree node for this clock
+ * @lock: spinlock used by this clock
+ */
+static void __init of_psc_clk_init(struct device_node *node, spinlock_t *lock)
+{
+ const char *clk_name = node->name;
+ const char *parent_name;
+ struct clk_psc_data *data;
+ struct clk *clk;
+ int i;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ pr_err("%s: Out of memory\n", __func__);
+ return;
+ }
+
+ i = of_property_match_string(node, "reg-names", "control");
+ data->control_base = of_iomap(node, i);
+ if (!data->control_base) {
+ pr_err("%s: control ioremap failed\n", __func__);
+ goto out;
+ }
+
+ i = of_property_match_string(node, "reg-names", "domain");
+ data->domain_base = of_iomap(node, i);
+ if (!data->domain_base) {
+ pr_err("%s: domain ioremap failed\n", __func__);
+ iounmap(data->control_base);
+ goto out;
+ }
+
+ of_property_read_u32(node, "domain-id", &data->domain_id);
+
+ /* Domain transition registers at fixed address space of domain_id 0 */
+ if (!domain_transition_base && !data->domain_id)
+ domain_transition_base = data->domain_base;
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+ parent_name = of_clk_get_parent_name(node, 0);
+ if (!parent_name) {
+ pr_err("%s: Parent clock not found\n", __func__);
+ goto out;
+ }
+
+ clk = clk_register_psc(NULL, clk_name, parent_name, data, lock);
+ if (clk) {
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ return;
+ }
+
+ pr_err("%s: error registering clk %s\n", __func__, node->name);
+out:
+ kfree(data);
+ return;
+}
+
+/**
+ * of_keystone_psc_clk_init - initialize psc clock through DT
+ * @node: device tree node for this clock
+ */
+static void __init of_keystone_psc_clk_init(struct device_node *node)
+{
+ of_psc_clk_init(node, &psc_lock);
+}
+CLK_OF_DECLARE(keystone_gate_clk, "ti,keystone,psc-clock",
+ of_keystone_psc_clk_init);
diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c
new file mode 100644
index 000000000000..47a1bd9f1726
--- /dev/null
+++ b/drivers/clk/keystone/pll.c
@@ -0,0 +1,305 @@
+/*
+ * PLL clock driver for Keystone devices
+ *
+ * Copyright (C) 2013 Texas Instruments Inc.
+ * Murali Karicheri <m-karicheri2@ti.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of.h>
+#include <linux/module.h>
+
+#define PLLM_LOW_MASK 0x3f
+#define PLLM_HIGH_MASK 0x7ffc0
+#define MAIN_PLLM_HIGH_MASK 0x7f000
+#define PLLM_HIGH_SHIFT 6
+#define PLLD_MASK 0x3f
+
+/**
+ * struct clk_pll_data - pll data structure
+ * @has_pllctrl: If set to non zero, lower 6 bits of multiplier is in pllm
+ * register of pll controller, else it is in the pll_ctrl0((bit 11-6)
+ * @phy_pllm: Physical address of PLLM in pll controller. Used when
+ * has_pllctrl is non zero.
+ * @phy_pll_ctl0: Physical address of PLL ctrl0. This could be that of
+ * Main PLL or any other PLLs in the device such as ARM PLL, DDR PLL
+ * or PA PLL available on keystone2. These PLLs are controlled by
+ * this register. Main PLL is controlled by a PLL controller.
+ * @pllm: PLL register map address
+ * @pll_ctl0: PLL controller map address
+ * @pllm_lower_mask: multiplier lower mask
+ * @pllm_upper_mask: multiplier upper mask
+ * @pllm_upper_shift: multiplier upper shift
+ * @plld_mask: divider mask
+ * @postdiv: Post divider
+ */
+struct clk_pll_data {
+ bool has_pllctrl;
+ u32 phy_pllm;
+ u32 phy_pll_ctl0;
+ void __iomem *pllm;
+ void __iomem *pll_ctl0;
+ u32 pllm_lower_mask;
+ u32 pllm_upper_mask;
+ u32 pllm_upper_shift;
+ u32 plld_mask;
+ u32 postdiv;
+};
+
+/**
+ * struct clk_pll - Main pll clock
+ * @hw: clk_hw for the pll
+ * @pll_data: PLL driver specific data
+ */
+struct clk_pll {
+ struct clk_hw hw;
+ struct clk_pll_data *pll_data;
+};
+
+#define to_clk_pll(_hw) container_of(_hw, struct clk_pll, hw)
+
+static unsigned long clk_pllclk_recalc(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct clk_pll *pll = to_clk_pll(hw);
+ struct clk_pll_data *pll_data = pll->pll_data;
+ unsigned long rate = parent_rate;
+ u32 mult = 0, prediv, postdiv, val;
+
+ /*
+ * get bits 0-5 of multiplier from pllctrl PLLM register
+ * if has_pllctrl is non zero
+ */
+ if (pll_data->has_pllctrl) {
+ val = readl(pll_data->pllm);
+ mult = (val & pll_data->pllm_lower_mask);
+ }
+
+ /* bit6-12 of PLLM is in Main PLL control register */
+ val = readl(pll_data->pll_ctl0);
+ mult |= ((val & pll_data->pllm_upper_mask)
+ >> pll_data->pllm_upper_shift);
+ prediv = (val & pll_data->plld_mask);
+ postdiv = pll_data->postdiv;
+
+ rate /= (prediv + 1);
+ rate = (rate * (mult + 1));
+ rate /= postdiv;
+
+ return rate;
+}
+
+static const struct clk_ops clk_pll_ops = {
+ .recalc_rate = clk_pllclk_recalc,
+};
+
+static struct clk *clk_register_pll(struct device *dev,
+ const char *name,
+ const char *parent_name,
+ struct clk_pll_data *pll_data)
+{
+ struct clk_init_data init;
+ struct clk_pll *pll;
+ struct clk *clk;
+
+ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ if (!pll)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = name;
+ init.ops = &clk_pll_ops;
+ init.flags = 0;
+ init.parent_names = (parent_name ? &parent_name : NULL);
+ init.num_parents = (parent_name ? 1 : 0);
+
+ pll->pll_data = pll_data;
+ pll->hw.init = &init;
+
+ clk = clk_register(NULL, &pll->hw);
+ if (IS_ERR(clk))
+ goto out;
+
+ return clk;
+out:
+ kfree(pll);
+ return NULL;
+}
+
+/**
+ * _of_clk_init - PLL initialisation via DT
+ * @node: device tree node for this clock
+ * @pllctrl: If true, lower 6 bits of multiplier is in pllm register of
+ * pll controller, else it is in the control regsiter0(bit 11-6)
+ */
+static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl)
+{
+ struct clk_pll_data *pll_data;
+ const char *parent_name;
+ struct clk *clk;
+ int i;
+
+ pll_data = kzalloc(sizeof(*pll_data), GFP_KERNEL);
+ if (!pll_data) {
+ pr_err("%s: Out of memory\n", __func__);
+ return;
+ }
+
+ parent_name = of_clk_get_parent_name(node, 0);
+ if (of_property_read_u32(node, "fixed-postdiv", &pll_data->postdiv))
+ goto out;
+
+ i = of_property_match_string(node, "reg-names", "control");
+ pll_data->pll_ctl0 = of_iomap(node, i);
+ if (!pll_data->pll_ctl0) {
+ pr_err("%s: ioremap failed\n", __func__);
+ goto out;
+ }
+
+ pll_data->pllm_lower_mask = PLLM_LOW_MASK;
+ pll_data->pllm_upper_shift = PLLM_HIGH_SHIFT;
+ pll_data->plld_mask = PLLD_MASK;
+ pll_data->has_pllctrl = pllctrl;
+ if (!pll_data->has_pllctrl) {
+ pll_data->pllm_upper_mask = PLLM_HIGH_MASK;
+ } else {
+ pll_data->pllm_upper_mask = MAIN_PLLM_HIGH_MASK;
+ i = of_property_match_string(node, "reg-names", "multiplier");
+ pll_data->pllm = of_iomap(node, i);
+ if (!pll_data->pllm) {
+ iounmap(pll_data->pll_ctl0);
+ goto out;
+ }
+ }
+
+ clk = clk_register_pll(NULL, node->name, parent_name, pll_data);
+ if (clk) {
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ return;
+ }
+
+out:
+ pr_err("%s: error initializing pll %s\n", __func__, node->name);
+ kfree(pll_data);
+}
+
+/**
+ * of_keystone_pll_clk_init - PLL initialisation DT wrapper
+ * @node: device tree node for this clock
+ */
+static void __init of_keystone_pll_clk_init(struct device_node *node)
+{
+ _of_pll_clk_init(node, false);
+}
+CLK_OF_DECLARE(keystone_pll_clock, "ti,keystone,pll-clock",
+ of_keystone_pll_clk_init);
+
+/**
+ * of_keystone_pll_main_clk_init - Main PLL initialisation DT wrapper
+ * @node: device tree node for this clock
+ */
+static void __init of_keystone_main_pll_clk_init(struct device_node *node)
+{
+ _of_pll_clk_init(node, true);
+}
+CLK_OF_DECLARE(keystone_main_pll_clock, "ti,keystone,main-pll-clock",
+ of_keystone_main_pll_clk_init);
+
+/**
+ * of_pll_div_clk_init - PLL divider setup function
+ * @node: device tree node for this clock
+ */
+static void __init of_pll_div_clk_init(struct device_node *node)
+{
+ const char *parent_name;
+ void __iomem *reg;
+ u32 shift, mask;
+ struct clk *clk;
+ const char *clk_name = node->name;
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+ reg = of_iomap(node, 0);
+ if (!reg) {
+ pr_err("%s: ioremap failed\n", __func__);
+ return;
+ }
+
+ parent_name = of_clk_get_parent_name(node, 0);
+ if (!parent_name) {
+ pr_err("%s: missing parent clock\n", __func__);
+ return;
+ }
+
+ if (of_property_read_u32(node, "bit-shift", &shift)) {
+ pr_err("%s: missing 'shift' property\n", __func__);
+ return;
+ }
+
+ if (of_property_read_u32(node, "bit-mask", &mask)) {
+ pr_err("%s: missing 'bit-mask' property\n", __func__);
+ return;
+ }
+
+ clk = clk_register_divider(NULL, clk_name, parent_name, 0, reg, shift,
+ mask, 0, NULL);
+ if (clk)
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ else
+ pr_err("%s: error registering divider %s\n", __func__, clk_name);
+}
+CLK_OF_DECLARE(pll_divider_clock, "ti,keystone,pll-divider-clock", of_pll_div_clk_init);
+
+/**
+ * of_pll_mux_clk_init - PLL mux setup function
+ * @node: device tree node for this clock
+ */
+static void __init of_pll_mux_clk_init(struct device_node *node)
+{
+ void __iomem *reg;
+ u32 shift, mask;
+ struct clk *clk;
+ const char *parents[2];
+ const char *clk_name = node->name;
+
+ of_property_read_string(node, "clock-output-names", &clk_name);
+ reg = of_iomap(node, 0);
+ if (!reg) {
+ pr_err("%s: ioremap failed\n", __func__);
+ return;
+ }
+
+ parents[0] = of_clk_get_parent_name(node, 0);
+ parents[1] = of_clk_get_parent_name(node, 1);
+ if (!parents[0] || !parents[1]) {
+ pr_err("%s: missing parent clocks\n", __func__);
+ return;
+ }
+
+ if (of_property_read_u32(node, "bit-shift", &shift)) {
+ pr_err("%s: missing 'shift' property\n", __func__);
+ return;
+ }
+
+ if (of_property_read_u32(node, "bit-mask", &mask)) {
+ pr_err("%s: missing 'bit-mask' property\n", __func__);
+ return;
+ }
+
+ clk = clk_register_mux(NULL, clk_name, (const char **)&parents,
+ ARRAY_SIZE(parents) , 0, reg, shift, mask,
+ 0, NULL);
+ if (clk)
+ of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ else
+ pr_err("%s: error registering mux %s\n", __func__, clk_name);
+}
+CLK_OF_DECLARE(pll_mux_clock, "ti,keystone,pll-mux-clock", of_pll_mux_clk_init);
diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c
index c396fe361589..9fc9359f5133 100644
--- a/drivers/clk/mxs/clk-imx23.c
+++ b/drivers/clk/mxs/clk-imx23.c
@@ -12,6 +12,7 @@
#include <linux/clk.h>
#include <linux/clk/mxs.h>
#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
@@ -100,16 +101,16 @@ static enum imx23_clk clks_init_on[] __initdata = {
cpu, hbus, xbus, emi, uart,
};
-int __init mx23_clocks_init(void)
+static void __init mx23_clocks_init(struct device_node *np)
{
- struct device_node *np;
+ struct device_node *dcnp;
u32 i;
- np = of_find_compatible_node(NULL, NULL, "fsl,imx23-digctl");
- digctrl = of_iomap(np, 0);
+ dcnp = of_find_compatible_node(NULL, NULL, "fsl,imx23-digctl");
+ digctrl = of_iomap(dcnp, 0);
WARN_ON(!digctrl);
+ of_node_put(dcnp);
- np = of_find_compatible_node(NULL, NULL, "fsl,imx23-clkctrl");
clkctrl = of_iomap(np, 0);
WARN_ON(!clkctrl);
@@ -162,7 +163,7 @@ int __init mx23_clocks_init(void)
if (IS_ERR(clks[i])) {
pr_err("i.MX23 clk %d: register failed with %ld\n",
i, PTR_ERR(clks[i]));
- return PTR_ERR(clks[i]);
+ return;
}
clk_data.clks = clks;
@@ -172,5 +173,5 @@ int __init mx23_clocks_init(void)
for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
clk_prepare_enable(clks[clks_init_on[i]]);
- return 0;
}
+CLK_OF_DECLARE(imx23_clkctrl, "fsl,imx23-clkctrl", mx23_clocks_init);
diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
index 4faf0afc44cd..a6c35010e4e5 100644
--- a/drivers/clk/mxs/clk-imx28.c
+++ b/drivers/clk/mxs/clk-imx28.c
@@ -12,6 +12,7 @@
#include <linux/clk.h>
#include <linux/clk/mxs.h>
#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
@@ -154,16 +155,16 @@ static enum imx28_clk clks_init_on[] __initdata = {
cpu, hbus, xbus, emi, uart,
};
-int __init mx28_clocks_init(void)
+static void __init mx28_clocks_init(struct device_node *np)
{
- struct device_node *np;
+ struct device_node *dcnp;
u32 i;
- np = of_find_compatible_node(NULL, NULL, "fsl,imx28-digctl");
- digctrl = of_iomap(np, 0);
+ dcnp = of_find_compatible_node(NULL, NULL, "fsl,imx28-digctl");
+ digctrl = of_iomap(dcnp, 0);
WARN_ON(!digctrl);
+ of_node_put(dcnp);
- np = of_find_compatible_node(NULL, NULL, "fsl,imx28-clkctrl");
clkctrl = of_iomap(np, 0);
WARN_ON(!clkctrl);
@@ -239,7 +240,7 @@ int __init mx28_clocks_init(void)
if (IS_ERR(clks[i])) {
pr_err("i.MX28 clk %d: register failed with %ld\n",
i, PTR_ERR(clks[i]));
- return PTR_ERR(clks[i]);
+ return;
}
clk_data.clks = clks;
@@ -250,6 +251,5 @@ int __init mx28_clocks_init(void)
for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
clk_prepare_enable(clks[clks_init_on[i]]);
-
- return 0;
}
+CLK_OF_DECLARE(imx28_clkctrl, "fsl,imx28-clkctrl", mx28_clocks_init);
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 3413380086d5..8eb4799237f0 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -8,6 +8,4 @@ obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o
obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o
-ifdef CONFIG_COMMON_CLK
obj-$(CONFIG_ARCH_S3C64XX) += clk-s3c64xx.o
-endif
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 34ee69f4d50c..9bbd03514540 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -16,7 +16,6 @@
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
-#include <linux/clk/sunxi.h>
#include <linux/of.h>
#include <linux/of_address.h>
@@ -617,11 +616,8 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat
}
}
-void __init sunxi_init_clocks(void)
+static void __init sunxi_init_clocks(struct device_node *np)
{
- /* Register all the simple and basic clocks on DT */
- of_clk_init(NULL);
-
/* Register factor clocks */
of_sunxi_table_clock_setup(clk_factors_match, sunxi_factors_clk_setup);
@@ -634,3 +630,8 @@ void __init sunxi_init_clocks(void)
/* Register gate clocks */
of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup);
}
+CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sunxi_init_clocks);
+CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sunxi_init_clocks);
+CLK_OF_DECLARE(sun5i_a13_clk_init, "allwinner,sun5i-a13", sunxi_init_clocks);
+CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sunxi_init_clocks);
+CLK_OF_DECLARE(sun7i_a20_clk_init, "allwinner,sun7i-a20", sunxi_init_clocks);
diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile
index c6a806ed0e8c..521483f0ba33 100644
--- a/drivers/clk/ux500/Makefile
+++ b/drivers/clk/ux500/Makefile
@@ -8,6 +8,7 @@ obj-y += clk-prcmu.o
obj-y += clk-sysctrl.o
# Clock definitions
+obj-y += u8500_of_clk.o
obj-y += u8500_clk.o
obj-y += u9540_clk.o
obj-y += u8540_clk.o
diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
new file mode 100644
index 000000000000..cdeff299de26
--- /dev/null
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -0,0 +1,559 @@
+/*
+ * Clock definitions for u8500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/platform_data/clk-ux500.h>
+#include "clk.h"
+
+#define PRCC_NUM_PERIPH_CLUSTERS 6
+#define PRCC_PERIPHS_PER_CLUSTER 32
+
+static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
+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];
+
+#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
+
+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 const struct of_device_id u8500_clk_of_match[] = {
+ { .compatible = "stericsson,u8500-clks", },
+ { },
+};
+
+void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
+ u32 clkrst5_base, u32 clkrst6_base)
+{
+ struct prcmu_fw_version *fw_version;
+ struct device_node *np = NULL;
+ struct device_node *child = NULL;
+ const char *sgaclk_parent = NULL;
+ struct clk *clk, *rtc_clk, *twd_clk;
+
+ if (of_have_populated_dt())
+ np = of_find_matching_node(NULL, u8500_clk_of_match);
+ if (!np) {
+ pr_err("Either DT or U8500 Clock node not found\n");
+ return;
+ }
+
+ /* Clock sources */
+ clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_PLLSOC0] = clk;
+
+ clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_PLLSOC1] = clk;
+
+ clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_PLLDDR] = clk;
+
+ /* FIXME: Add sys, ulp and int clocks here. */
+
+ rtc_clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
+ CLK_IS_ROOT|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_U8520:
+ case PRCMU_FW_PROJECT_U8420:
+ sgaclk_parent = "soc0_pll";
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (sgaclk_parent)
+ clk = clk_reg_prcmu_gate("sgclk", sgaclk_parent,
+ PRCMU_SGACLK, 0);
+ else
+ clk = clk_reg_prcmu_gate("sgclk", NULL,
+ PRCMU_SGACLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_SGACLK] = clk;
+
+ clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_UARTCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_MSP02CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_MSP1CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_I2CCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_SLIMCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER1CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER2CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER3CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER5CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER6CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER7CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_LCDCLK] = clk;
+
+ clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_BMLCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_HSITXCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_HSIRXCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_HDMICLK] = clk;
+
+ clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_APEATCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK,
+ CLK_IS_ROOT);
+ prcmu_clk[PRCMU_APETRACECLK] = clk;
+
+ clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_MCDECLK] = clk;
+
+ clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK,
+ CLK_IS_ROOT);
+ prcmu_clk[PRCMU_IPI2CCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK,
+ CLK_IS_ROOT);
+ prcmu_clk[PRCMU_DSIALTCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_DMACLK] = clk;
+
+ clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_B2R2CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_TVCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_SSPCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_RNGCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_UICCCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_TIMCLK] = clk;
+
+ clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK,
+ 100000000,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_SDMMCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
+ PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_PLLDSI] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
+ PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI0CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
+ PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI1CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
+ PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI0ESCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
+ PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI1ESCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
+ PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI2ESCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable_rate("armss", NULL,
+ PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_ARMSS] = clk;
+
+ twd_clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
+ CLK_IGNORE_UNUSED, 1, 2);
+
+ /*
+ * FIXME: Add special handled PRCMU clocks here:
+ * 1. clkout0yuv, use PRCMU as parent + need regulator + pinctrl.
+ * 2. ab9540_clkout1yuv, see clkout0yuv
+ */
+
+ /* PRCC P-clocks */
+ clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 1, 0);
+
+ clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 1, 1);
+
+ clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 1, 2);
+
+ clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 1, 3);
+
+ clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 1, 4);
+
+ clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 1, 5);
+
+ clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 1, 6);
+
+ clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 1, 7);
+
+ clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base,
+ BIT(8), 0);
+ PRCC_PCLK_STORE(clk, 1, 8);
+
+ clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base,
+ BIT(9), 0);
+ PRCC_PCLK_STORE(clk, 1, 9);
+
+ clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base,
+ BIT(10), 0);
+ PRCC_PCLK_STORE(clk, 1, 10);
+
+ clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base,
+ BIT(11), 0);
+ PRCC_PCLK_STORE(clk, 1, 11);
+
+ clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 2, 0);
+
+ clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 2, 1);
+
+ clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 2, 2);
+
+ clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 2, 3);
+
+ clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 2, 4);
+
+ clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 2, 5);
+
+ clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 2, 6);
+
+ clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 2, 7);
+
+ clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base,
+ BIT(8), 0);
+ PRCC_PCLK_STORE(clk, 2, 8);
+
+ clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base,
+ BIT(9), 0);
+ PRCC_PCLK_STORE(clk, 2, 9);
+
+ clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base,
+ BIT(10), 0);
+ PRCC_PCLK_STORE(clk, 2, 10);
+
+ clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base,
+ BIT(11), 0);
+ PRCC_PCLK_STORE(clk, 2, 11);
+
+ clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base,
+ BIT(12), 0);
+ PRCC_PCLK_STORE(clk, 2, 12);
+
+ clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 3, 0);
+
+ clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 3, 1);
+
+ clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 3, 2);
+
+ clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 3, 3);
+
+ clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 3, 4);
+
+ clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 3, 5);
+
+ clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 3, 6);
+
+ clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 3, 7);
+
+ clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base,
+ BIT(8), 0);
+ PRCC_PCLK_STORE(clk, 3, 8);
+
+ clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 5, 0);
+
+ clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 5, 1);
+
+ clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 6, 0);
+
+ clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 6, 1);
+
+ clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 6, 2);
+
+ clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 6, 3);
+
+ clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 6, 4);
+
+ clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 6, 5);
+
+ clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 6, 6);
+
+ clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base,
+ 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",
+ clkrst1_base, BIT(0), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 0);
+
+ clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
+ clkrst1_base, BIT(1), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 1);
+
+ clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
+ clkrst1_base, BIT(2), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 2);
+
+ clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
+ clkrst1_base, BIT(3), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 3);
+
+ clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
+ clkrst1_base, BIT(4), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 4);
+
+ clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
+ clkrst1_base, BIT(5), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 5);
+
+ clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
+ clkrst1_base, BIT(6), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 6);
+
+ clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
+ clkrst1_base, BIT(8), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 8);
+
+ clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
+ clkrst1_base, BIT(9), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 9);
+
+ clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
+ clkrst1_base, BIT(10), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 10);
+
+ /* Periph2 */
+ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
+ clkrst2_base, BIT(0), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 0);
+
+ clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
+ clkrst2_base, BIT(2), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 2);
+
+ clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
+ clkrst2_base, BIT(3), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 3);
+
+ clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
+ clkrst2_base, BIT(4), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 4);
+
+ clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
+ clkrst2_base, 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",
+ clkrst2_base, 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",
+ clkrst2_base, 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",
+ clkrst3_base, BIT(1), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 1);
+
+ clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
+ clkrst3_base, BIT(2), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 2);
+
+ clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
+ clkrst3_base, BIT(3), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 3);
+
+ clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
+ clkrst3_base, BIT(4), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 4);
+
+ clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
+ clkrst3_base, BIT(5), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 5);
+
+ clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
+ clkrst3_base, BIT(6), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 6);
+
+ clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
+ clkrst3_base, BIT(7), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 7);
+
+ /* Periph6 */
+ clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
+ clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 6, 0);
+
+ for_each_child_of_node(np, child) {
+ static struct clk_onecell_data clk_data;
+
+ if (!of_node_cmp(child->name, "prcmu-clock")) {
+ clk_data.clks = prcmu_clk;
+ clk_data.clk_num = ARRAY_SIZE(prcmu_clk);
+ of_clk_add_provider(child, of_clk_src_onecell_get, &clk_data);
+ }
+ if (!of_node_cmp(child->name, "prcc-periph-clock"))
+ of_clk_add_provider(child, ux500_twocell_get, prcc_pclk);
+
+ if (!of_node_cmp(child->name, "prcc-kernel-clock"))
+ of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
+
+ if (!of_node_cmp(child->name, "rtc32k-clock"))
+ of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
+
+ if (!of_node_cmp(child->name, "smp-twd-clock"))
+ of_clk_add_provider(child, of_clk_src_simple_get, twd_clk);
+ }
+}
diff --git a/drivers/clk/ux500/u8540_clk.c b/drivers/clk/ux500/u8540_clk.c
index f26258869deb..20c8add90d11 100644
--- a/drivers/clk/ux500/u8540_clk.c
+++ b/drivers/clk/ux500/u8540_clk.c
@@ -83,7 +83,7 @@ void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
clk_register_clkdev(clk, NULL, "lcd");
clk_register_clkdev(clk, "lcd", "mcde");
- clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BML8580CLK,
+ clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK,
CLK_IS_ROOT);
clk_register_clkdev(clk, NULL, "bml");
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index cc40fe64f2dc..10772aa72e4e 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -117,13 +117,19 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
goto err;
fclk_gate_lock = kmalloc(sizeof(*fclk_gate_lock), GFP_KERNEL);
if (!fclk_gate_lock)
- goto err;
+ goto err_fclk_gate_lock;
spin_lock_init(fclk_lock);
spin_lock_init(fclk_gate_lock);
mux_name = kasprintf(GFP_KERNEL, "%s_mux", clk_name);
+ if (!mux_name)
+ goto err_mux_name;
div0_name = kasprintf(GFP_KERNEL, "%s_div0", clk_name);
+ if (!div0_name)
+ goto err_div0_name;
div1_name = kasprintf(GFP_KERNEL, "%s_div1", clk_name);
+ if (!div1_name)
+ goto err_div1_name;
clk = clk_register_mux(NULL, mux_name, parents, 4,
CLK_SET_RATE_NO_REPARENT, fclk_ctrl_reg, 4, 2, 0,
@@ -147,6 +153,14 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
return;
+err_div1_name:
+ kfree(div0_name);
+err_div0_name:
+ kfree(mux_name);
+err_mux_name:
+ kfree(fclk_gate_lock);
+err_fclk_gate_lock:
+ kfree(fclk_lock);
err:
clks[fclk] = ERR_PTR(-ENOMEM);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 17:03:41 +0100