Commit 09ffd948 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge tag 'samsung-pm-3' of... 

Merge tag 'samsung-pm-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Pull "Samsung PM 3rd updates for v3.19" from Kukjin Kim:

- exynos3250
  : add PMU support

- PMU refactoring
  : move restart code into PMU driver
  : move restart code for exynos440 into clk driver

- use u8 for val[] in struct exynos_pmu_conf

Note that this branch is based on tags/samsung-exynos-v3.19

* tag 'samsung-pm-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung

:
  ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
  ARM: EXYNOS: move restart code into pmu driver
  clk: exynos5440: move restart code into clock driver
  ARM: EXYNOS: add exynos3250 PMU support

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parents 5c5ee5e7 b04fa9f7

arch/arm/mach-exynos/common.h

+0 −1
Original line number Diff line number Diff line
@@ -12,7 +12,6 @@ 
#ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H

#define __ARCH_ARM_MACH_EXYNOS_COMMON_H



#include <linux/reboot.h>

#include <linux/of.h>



#define EXYNOS3250_SOC_ID	0xE3472000

arch/arm/mach-exynos/exynos.c

+0 −23
Original line number Diff line number Diff line
@@ -137,28 +137,6 @@ static struct map_desc exynos5_iodesc[] __initdata = { 
	},

};



static void exynos_restart(enum reboot_mode mode, const char *cmd)

{

	struct device_node *np;

	u32 val = 0x1;

	void __iomem *addr = pmu_base_addr + EXYNOS_SWRESET;



	if (of_machine_is_compatible("samsung,exynos5440")) {

		u32 status;

		np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock");



		addr = of_iomap(np, 0) + 0xbc;

		status = __raw_readl(addr);



		addr = of_iomap(np, 0) + 0xcc;

		val = __raw_readl(addr);



		val = (val & 0xffff0000) | (status & 0xffff);

	}



	__raw_writel(val, addr);

}



static struct platform_device exynos_cpuidle = {

	.name              = "exynos_cpuidle",

#ifdef CONFIG_ARM_EXYNOS_CPUIDLE
@@ -383,7 +361,6 @@ DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)") 
	.init_machine	= exynos_dt_machine_init,

	.init_late	= exynos_init_late,

	.dt_compat	= exynos_dt_compat,

	.restart	= exynos_restart,

	.reserve	= exynos_reserve,

	.dt_fixup	= exynos_dt_fixup,

MACHINE_END

arch/arm/mach-exynos/pmu.c

+191 −1
Original line number Diff line number Diff line
@@ -11,8 +11,11 @@ 


#include <linux/io.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/platform_device.h>

#include <linux/delay.h>

#include <linux/notifier.h>

#include <linux/reboot.h>





#include "exynos-pmu.h"
@@ -22,7 +25,7 @@ 


struct exynos_pmu_conf {

	unsigned int offset;

	unsigned int val[NUM_SYS_POWERDOWN];

	u8 val[NUM_SYS_POWERDOWN];

};



struct exynos_pmu_data {
@@ -31,6 +34,7 @@ struct exynos_pmu_data { 


	void (*pmu_init)(void);

	void (*powerdown_conf)(enum sys_powerdown);

	void (*powerdown_conf_extra)(enum sys_powerdown);

};



struct exynos_pmu_context {
@@ -51,6 +55,92 @@ static inline u32 pmu_raw_readl(u32 offset) 
	return readl_relaxed(pmu_base_addr + offset);

}



static struct exynos_pmu_conf exynos3250_pmu_config[] = {

	/* { .offset = offset, .val = { AFTR, W-AFTR, SLEEP } */

	{ EXYNOS3_ARM_CORE0_SYS_PWR_REG,		{ 0x0, 0x0, 0x2} },

	{ EXYNOS3_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },

	{ EXYNOS3_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },

	{ EXYNOS3_ARM_CORE1_SYS_PWR_REG,		{ 0x0, 0x0, 0x2} },

	{ EXYNOS3_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },

	{ EXYNOS3_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} },

	{ EXYNOS3_ISP_ARM_SYS_PWR_REG,			{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },

	{ EXYNOS3_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },

	{ EXYNOS3_ARM_COMMON_SYS_PWR_REG,		{ 0x0, 0x0, 0x2} },

	{ EXYNOS3_ARM_L2_SYS_PWR_REG,			{ 0x0, 0x0, 0x3} },

	{ EXYNOS3_CMU_ACLKSTOP_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_CMU_SCLKSTOP_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_CMU_RESET_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_DRAM_FREQ_DOWN_SYS_PWR_REG,		{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_DDRPHY_DLLOFF_SYS_PWR_REG,		{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_LPDDR_PHY_DLL_LOCK_SYS_PWR_REG,	{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_CMU_ACLKSTOP_COREBLK_SYS_PWR_REG,	{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_SCLKSTOP_COREBLK_SYS_PWR_REG,	{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_COREBLK_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_APLL_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_MPLL_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_BPLL_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_VPLL_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_EPLL_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_UPLL_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_EPLLUSER_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_MPLLUSER_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_BPLLUSER_SYSCLK_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_CLKSTOP_CAM_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_CLKSTOP_MFC_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_CLKSTOP_G3D_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_CLKSTOP_LCD0_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_CLKSTOP_ISP_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_CLKSTOP_MAUDIO_SYS_PWR_REG,	{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_CAM_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_MFC_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_G3D_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_LCD0_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_ISP_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_CMU_RESET_MAUDIO_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ EXYNOS3_TOP_BUS_SYS_PWR_REG,			{ 0x3, 0x0, 0x0} },

	{ EXYNOS3_TOP_RETENTION_SYS_PWR_REG,		{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_TOP_PWR_SYS_PWR_REG,			{ 0x3, 0x3, 0x3} },

	{ EXYNOS3_TOP_BUS_COREBLK_SYS_PWR_REG,		{ 0x3, 0x0, 0x0} },

	{ EXYNOS3_TOP_RETENTION_COREBLK_SYS_PWR_REG,	{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_TOP_PWR_COREBLK_SYS_PWR_REG,		{ 0x3, 0x3, 0x3} },

	{ EXYNOS3_LOGIC_RESET_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_OSCCLK_GATE_SYS_PWR_REG,		{ 0x1, 0x1, 0x1} },

	{ EXYNOS3_LOGIC_RESET_COREBLK_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_OSCCLK_GATE_COREBLK_SYS_PWR_REG,	{ 0x1, 0x0, 0x1} },

	{ EXYNOS3_PAD_RETENTION_DRAM_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_MAUDIO_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_GPIO_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_UART_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_MMC0_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_MMC1_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_MMC2_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_SPI_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_EBIA_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_EBIB_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_RETENTION_JTAG_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_ISOLATION_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_PAD_ALV_SEL_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_XUSBXTI_SYS_PWR_REG,			{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_XXTI_SYS_PWR_REG,			{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_EXT_REGULATOR_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_EXT_REGULATOR_COREBLK_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_GPIO_MODE_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_GPIO_MODE_MAUDIO_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_TOP_ASB_RESET_SYS_PWR_REG,		{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_TOP_ASB_ISOLATION_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_TOP_ASB_RESET_COREBLK_SYS_PWR_REG,	{ 0x1, 0x1, 0x0} },

	{ EXYNOS3_TOP_ASB_ISOLATION_COREBLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} },

	{ EXYNOS3_CAM_SYS_PWR_REG,			{ 0x7, 0x0, 0x0} },

	{ EXYNOS3_MFC_SYS_PWR_REG,			{ 0x7, 0x0, 0x0} },

	{ EXYNOS3_G3D_SYS_PWR_REG,			{ 0x7, 0x0, 0x0} },

	{ EXYNOS3_LCD0_SYS_PWR_REG,			{ 0x7, 0x0, 0x0} },

	{ EXYNOS3_ISP_SYS_PWR_REG,			{ 0x7, 0x0, 0x0} },

	{ EXYNOS3_MAUDIO_SYS_PWR_REG,			{ 0x7, 0x0, 0x0} },

	{ EXYNOS3_CMU_SYSCLK_ISP_SYS_PWR_REG,		{ 0x1, 0x0, 0x0} },

	{ PMU_TABLE_END,},

};



static const struct exynos_pmu_conf exynos4210_pmu_config[] = {

	/* { .offset = offset, .val = { AFTR, LPA, SLEEP } */

	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },
@@ -495,6 +585,44 @@ static struct exynos_pmu_conf exynos5420_pmu_config[] = { 
	{ PMU_TABLE_END,},

};



static unsigned int const exynos3250_list_feed[] = {

	EXYNOS3_ARM_CORE_OPTION(0),

	EXYNOS3_ARM_CORE_OPTION(1),

	EXYNOS3_ARM_CORE_OPTION(2),

	EXYNOS3_ARM_CORE_OPTION(3),

	EXYNOS3_ARM_COMMON_OPTION,

	EXYNOS3_TOP_PWR_OPTION,

	EXYNOS3_CORE_TOP_PWR_OPTION,

	S5P_CAM_OPTION,

	S5P_MFC_OPTION,

	S5P_G3D_OPTION,

	S5P_LCD0_OPTION,

	S5P_ISP_OPTION,

};



static void exynos3250_powerdown_conf_extra(enum sys_powerdown mode)

{

	unsigned int i;

	unsigned int tmp;



	/* Enable only SC_FEEDBACK */

	for (i = 0; i < ARRAY_SIZE(exynos3250_list_feed); i++) {

		tmp = pmu_raw_readl(exynos3250_list_feed[i]);

		tmp &= ~(EXYNOS3_OPTION_USE_SC_COUNTER);

		tmp |= EXYNOS3_OPTION_USE_SC_FEEDBACK;

		pmu_raw_writel(tmp, exynos3250_list_feed[i]);

	}



	if (mode != SYS_SLEEP)

		return;



	pmu_raw_writel(XUSBXTI_DURATION, EXYNOS3_XUSBXTI_DURATION);

	pmu_raw_writel(XXTI_DURATION, EXYNOS3_XXTI_DURATION);

	pmu_raw_writel(EXT_REGULATOR_DURATION, EXYNOS3_EXT_REGULATOR_DURATION);

	pmu_raw_writel(EXT_REGULATOR_COREBLK_DURATION,

		       EXYNOS3_EXT_REGULATOR_COREBLK_DURATION);

}



static unsigned int const exynos5_list_both_cnt_feed[] = {

	EXYNOS5_ARM_CORE0_OPTION,

	EXYNOS5_ARM_CORE1_OPTION,
@@ -632,6 +760,9 @@ void exynos_sys_powerdown_conf(enum sys_powerdown mode) 
					pmu_data->pmu_config[i].offset);

	}



	if (pmu_data->powerdown_conf_extra)

		pmu_data->powerdown_conf_extra(mode);



	if (pmu_data->pmu_config_extra) {

		for (i = 0; pmu_data->pmu_config_extra[i].offset != PMU_TABLE_END; i++)

			pmu_raw_writel(pmu_data->pmu_config_extra[i].val[mode],
@@ -639,6 +770,36 @@ void exynos_sys_powerdown_conf(enum sys_powerdown mode) 
	}

}



static void exynos3250_pmu_init(void)

{

	unsigned int value;



	/*

	 * To prevent from issuing new bus request form L2 memory system

	 * If core status is power down, should be set '1' to L2 power down

	 */

	value = pmu_raw_readl(EXYNOS3_ARM_COMMON_OPTION);

	value |= EXYNOS3_OPTION_SKIP_DEACTIVATE_ACEACP_IN_PWDN;

	pmu_raw_writel(value, EXYNOS3_ARM_COMMON_OPTION);



	/* Enable USE_STANDBY_WFI for all CORE */

	pmu_raw_writel(S5P_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION);



	/*

	 * Set PSHOLD port for output high

	 */

	value = pmu_raw_readl(S5P_PS_HOLD_CONTROL);

	value |= S5P_PS_HOLD_OUTPUT_HIGH;

	pmu_raw_writel(value, S5P_PS_HOLD_CONTROL);



	/*

	 * Enable signal for PSHOLD port

	 */

	value = pmu_raw_readl(S5P_PS_HOLD_CONTROL);

	value |= S5P_PS_HOLD_EN;

	pmu_raw_writel(value, S5P_PS_HOLD_CONTROL);

}



static void exynos5250_pmu_init(void)

{

	unsigned int value;
@@ -716,6 +877,19 @@ static void exynos5420_pmu_init(void) 
	pr_info("EXYNOS5420 PMU initialized\n");

}



static int pmu_restart_notify(struct notifier_block *this,

		unsigned long code, void *unused)

{

	pmu_raw_writel(0x1, EXYNOS_SWRESET);



	return NOTIFY_DONE;

}



static const struct exynos_pmu_data exynos3250_pmu_data = {

	.pmu_config	= exynos3250_pmu_config,

	.pmu_init	= exynos3250_pmu_init,

	.powerdown_conf_extra	= exynos3250_powerdown_conf_extra,

};



static const struct exynos_pmu_data exynos4210_pmu_data = {

	.pmu_config	= exynos4210_pmu_config,
@@ -747,6 +921,9 @@ static struct exynos_pmu_data exynos5420_pmu_data = { 
 */

static const struct of_device_id exynos_pmu_of_device_ids[] = {

	{

		.compatible = "samsung,exynos3250-pmu",

		.data = &exynos3250_pmu_data,

	}, {

		.compatible = "samsung,exynos4210-pmu",

		.data = &exynos4210_pmu_data,

	}, {
@@ -765,11 +942,20 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { 
	{ /*sentinel*/ },

};



/*

 * Exynos PMU restart notifier, handles restart functionality

 */

static struct notifier_block pmu_restart_handler = {

	.notifier_call = pmu_restart_notify,

	.priority = 128,

};



static int exynos_pmu_probe(struct platform_device *pdev)

{

	const struct of_device_id *match;

	struct device *dev = &pdev->dev;

	struct resource *res;

	int ret;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	pmu_base_addr = devm_ioremap_resource(dev, res);
@@ -794,6 +980,10 @@ static int exynos_pmu_probe(struct platform_device *pdev) 


	platform_set_drvdata(pdev, pmu_context);



	ret = register_restart_handler(&pmu_restart_handler);

	if (ret)

		dev_warn(dev, "can't register restart handler err=%d\n", ret);



	dev_dbg(dev, "Exynos PMU Driver probe done\n");

	return 0;

}

arch/arm/mach-exynos/regs-pmu.h

+128 −0
Original line number Diff line number Diff line
@@ -19,7 +19,20 @@ 
#define S5P_CENTRAL_SEQ_OPTION			0x0208



#define S5P_USE_STANDBY_WFI0			(1 << 16)

#define S5P_USE_STANDBY_WFI1			(1 << 17)

#define S5P_USE_STANDBY_WFI2			(1 << 19)

#define S5P_USE_STANDBY_WFI3			(1 << 20)

#define S5P_USE_STANDBY_WFE0			(1 << 24)

#define S5P_USE_STANDBY_WFE1			(1 << 25)

#define S5P_USE_STANDBY_WFE2			(1 << 27)

#define S5P_USE_STANDBY_WFE3			(1 << 28)



#define S5P_USE_STANDBY_WFI_ALL \

	(S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFI1 | \

	 S5P_USE_STANDBY_WFI2 | S5P_USE_STANDBY_WFI3 | \

	 S5P_USE_STANDBY_WFE0 | S5P_USE_STANDBY_WFE1 | \

	 S5P_USE_STANDBY_WFE2 | S5P_USE_STANDBY_WFE3)



#define S5P_USE_DELAYED_RESET_ASSERTION		BIT(12)



#define EXYNOS_CORE_PO_RESET(n)			((1 << 4) << n)
@@ -154,6 +167,17 @@ 
#define S5P_PAD_RET_EBIA_OPTION			0x3188

#define S5P_PAD_RET_EBIB_OPTION			0x31A8



#define S5P_PS_HOLD_CONTROL			0x330C

#define S5P_PS_HOLD_EN				(1 << 31)

#define S5P_PS_HOLD_OUTPUT_HIGH			(3 << 8)



#define S5P_CAM_OPTION				0x3C08

#define S5P_MFC_OPTION				0x3C48

#define S5P_G3D_OPTION				0x3C68

#define S5P_LCD0_OPTION				0x3C88

#define S5P_LCD1_OPTION				0x3CA8

#define S5P_ISP_OPTION				S5P_LCD1_OPTION



#define S5P_CORE_LOCAL_PWR_EN			0x3

#define S5P_CORE_WAKEUP_FROM_LOCAL_CFG		(0x3 << 8)
@@ -214,6 +238,110 @@ 
#define S5P_DIS_IRQ_CORE3			0x1034

#define S5P_DIS_IRQ_CENTRAL3			0x1038



/* Only for EXYNOS3XXX */

#define EXYNOS3_ARM_CORE0_SYS_PWR_REG			0x1000

#define EXYNOS3_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG	0x1004

#define EXYNOS3_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG	0x1008

#define EXYNOS3_ARM_CORE1_SYS_PWR_REG			0x1010

#define EXYNOS3_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG	0x1014

#define EXYNOS3_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG	0x1018

#define EXYNOS3_ISP_ARM_SYS_PWR_REG			0x1050

#define EXYNOS3_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG	0x1054

#define EXYNOS3_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG	0x1058

#define EXYNOS3_ARM_COMMON_SYS_PWR_REG			0x1080

#define EXYNOS3_ARM_L2_SYS_PWR_REG			0x10C0

#define EXYNOS3_CMU_ACLKSTOP_SYS_PWR_REG		0x1100

#define EXYNOS3_CMU_SCLKSTOP_SYS_PWR_REG		0x1104

#define EXYNOS3_CMU_RESET_SYS_PWR_REG			0x110C

#define EXYNOS3_CMU_ACLKSTOP_COREBLK_SYS_PWR_REG	0x1110

#define EXYNOS3_CMU_SCLKSTOP_COREBLK_SYS_PWR_REG	0x1114

#define EXYNOS3_CMU_RESET_COREBLK_SYS_PWR_REG		0x111C

#define EXYNOS3_APLL_SYSCLK_SYS_PWR_REG			0x1120

#define EXYNOS3_MPLL_SYSCLK_SYS_PWR_REG			0x1124

#define EXYNOS3_VPLL_SYSCLK_SYS_PWR_REG			0x1128

#define EXYNOS3_EPLL_SYSCLK_SYS_PWR_REG			0x112C

#define EXYNOS3_MPLLUSER_SYSCLK_SYS_PWR_REG		0x1130

#define EXYNOS3_BPLLUSER_SYSCLK_SYS_PWR_REG		0x1134

#define EXYNOS3_EPLLUSER_SYSCLK_SYS_PWR_REG		0x1138

#define EXYNOS3_CMU_CLKSTOP_CAM_SYS_PWR_REG		0x1140

#define EXYNOS3_CMU_CLKSTOP_MFC_SYS_PWR_REG		0x1148

#define EXYNOS3_CMU_CLKSTOP_G3D_SYS_PWR_REG		0x114C

#define EXYNOS3_CMU_CLKSTOP_LCD0_SYS_PWR_REG		0x1150

#define EXYNOS3_CMU_CLKSTOP_ISP_SYS_PWR_REG		0x1154

#define EXYNOS3_CMU_CLKSTOP_MAUDIO_SYS_PWR_REG		0x1158

#define EXYNOS3_CMU_RESET_CAM_SYS_PWR_REG		0x1160

#define EXYNOS3_CMU_RESET_MFC_SYS_PWR_REG		0x1168

#define EXYNOS3_CMU_RESET_G3D_SYS_PWR_REG		0x116C

#define EXYNOS3_CMU_RESET_LCD0_SYS_PWR_REG		0x1170

#define EXYNOS3_CMU_RESET_ISP_SYS_PWR_REG		0x1174

#define EXYNOS3_CMU_RESET_MAUDIO_SYS_PWR_REG		0x1178

#define EXYNOS3_TOP_BUS_SYS_PWR_REG			0x1180

#define EXYNOS3_TOP_RETENTION_SYS_PWR_REG		0x1184

#define EXYNOS3_TOP_PWR_SYS_PWR_REG			0x1188

#define EXYNOS3_TOP_BUS_COREBLK_SYS_PWR_REG		0x1190

#define EXYNOS3_TOP_RETENTION_COREBLK_SYS_PWR_REG	0x1194

#define EXYNOS3_TOP_PWR_COREBLK_SYS_PWR_REG		0x1198

#define EXYNOS3_LOGIC_RESET_SYS_PWR_REG			0x11A0

#define EXYNOS3_OSCCLK_GATE_SYS_PWR_REG			0x11A4

#define EXYNOS3_LOGIC_RESET_COREBLK_SYS_PWR_REG		0x11B0

#define EXYNOS3_OSCCLK_GATE_COREBLK_SYS_PWR_REG		0x11B4

#define EXYNOS3_PAD_RETENTION_DRAM_SYS_PWR_REG		0x1200

#define EXYNOS3_PAD_RETENTION_MAUDIO_SYS_PWR_REG	0x1204

#define EXYNOS3_PAD_RETENTION_SPI_SYS_PWR_REG		0x1208

#define EXYNOS3_PAD_RETENTION_MMC2_SYS_PWR_REG		0x1218

#define EXYNOS3_PAD_RETENTION_GPIO_SYS_PWR_REG		0x1220

#define EXYNOS3_PAD_RETENTION_UART_SYS_PWR_REG		0x1224

#define EXYNOS3_PAD_RETENTION_MMC0_SYS_PWR_REG		0x1228

#define EXYNOS3_PAD_RETENTION_MMC1_SYS_PWR_REG		0x122C

#define EXYNOS3_PAD_RETENTION_EBIA_SYS_PWR_REG		0x1230

#define EXYNOS3_PAD_RETENTION_EBIB_SYS_PWR_REG		0x1234

#define EXYNOS3_PAD_RETENTION_JTAG_SYS_PWR_REG		0x1238

#define EXYNOS3_PAD_ISOLATION_SYS_PWR_REG		0x1240

#define EXYNOS3_PAD_ALV_SEL_SYS_PWR_REG			0x1260

#define EXYNOS3_XUSBXTI_SYS_PWR_REG			0x1280

#define EXYNOS3_XXTI_SYS_PWR_REG			0x1284

#define EXYNOS3_EXT_REGULATOR_SYS_PWR_REG		0x12C0

#define EXYNOS3_EXT_REGULATOR_COREBLK_SYS_PWR_REG	0x12C4

#define EXYNOS3_GPIO_MODE_SYS_PWR_REG			0x1300

#define EXYNOS3_GPIO_MODE_MAUDIO_SYS_PWR_REG		0x1340

#define EXYNOS3_TOP_ASB_RESET_SYS_PWR_REG		0x1344

#define EXYNOS3_TOP_ASB_ISOLATION_SYS_PWR_REG		0x1348

#define EXYNOS3_TOP_ASB_RESET_COREBLK_SYS_PWR_REG	0x1350

#define EXYNOS3_TOP_ASB_ISOLATION_COREBLK_SYS_PWR_REG	0x1354

#define EXYNOS3_CAM_SYS_PWR_REG				0x1380

#define EXYNOS3_MFC_SYS_PWR_REG				0x1388

#define EXYNOS3_G3D_SYS_PWR_REG				0x138C

#define EXYNOS3_LCD0_SYS_PWR_REG			0x1390

#define EXYNOS3_ISP_SYS_PWR_REG				0x1394

#define EXYNOS3_MAUDIO_SYS_PWR_REG			0x1398

#define EXYNOS3_DRAM_FREQ_DOWN_SYS_PWR_REG		0x13B0

#define EXYNOS3_DDRPHY_DLLOFF_SYS_PWR_REG		0x13B4

#define EXYNOS3_CMU_SYSCLK_ISP_SYS_PWR_REG		0x13B8

#define EXYNOS3_LPDDR_PHY_DLL_LOCK_SYS_PWR_REG		0x13C0

#define EXYNOS3_BPLL_SYSCLK_SYS_PWR_REG			0x13C4

#define EXYNOS3_UPLL_SYSCLK_SYS_PWR_REG			0x13C8



#define EXYNOS3_ARM_CORE0_OPTION			0x2008

#define EXYNOS3_ARM_CORE_OPTION(_nr)	\

			(EXYNOS3_ARM_CORE0_OPTION + ((_nr) * 0x80))



#define EXYNOS3_ARM_COMMON_OPTION			0x2408

#define EXYNOS3_TOP_PWR_OPTION				0x2C48

#define EXYNOS3_CORE_TOP_PWR_OPTION			0x2CA8

#define EXYNOS3_XUSBXTI_DURATION			0x341C

#define EXYNOS3_XXTI_DURATION				0x343C

#define EXYNOS3_EXT_REGULATOR_DURATION			0x361C

#define EXYNOS3_EXT_REGULATOR_COREBLK_DURATION		0x363C

#define XUSBXTI_DURATION				0x00000BB8

#define XXTI_DURATION					XUSBXTI_DURATION

#define EXT_REGULATOR_DURATION				0x00001D4C

#define EXT_REGULATOR_COREBLK_DURATION			EXT_REGULATOR_DURATION



/* for XXX_OPTION */

#define EXYNOS3_OPTION_USE_SC_COUNTER			(1 << 0)

#define EXYNOS3_OPTION_USE_SC_FEEDBACK			(1 << 1)

#define EXYNOS3_OPTION_SKIP_DEACTIVATE_ACEACP_IN_PWDN	(1 << 7)



/* For EXYNOS5 */



#define EXYNOS5_AUTO_WDTRESET_DISABLE				0x0408

drivers/clk/samsung/clk-exynos5440.c

+28 −1
Original line number Diff line number Diff line
@@ -15,6 +15,8 @@ 
#include <linux/clk-provider.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/notifier.h>

#include <linux/reboot.h>



#include "clk.h"

#include "clk-pll.h"
@@ -23,6 +25,8 @@ 
#define CPU_CLK_STATUS		0xfc

#define MISC_DOUT1		0x558



static void __iomem *reg_base;



/* parent clock name list */

PNAME(mout_armclk_p)	= { "cplla", "cpllb" };

PNAME(mout_spi_p)	= { "div125", "div200" };
@@ -89,10 +93,30 @@ static const struct of_device_id ext_clk_match[] __initconst = { 
	{},

};



static int exynos5440_clk_restart_notify(struct notifier_block *this,

		unsigned long code, void *unused)

{

	u32 val, status;



	status = readl_relaxed(reg_base + 0xbc);

	val = readl_relaxed(reg_base + 0xcc);

	val = (val & 0xffff0000) | (status & 0xffff);

	writel_relaxed(val, reg_base + 0xcc);



	return NOTIFY_DONE;

}



/*

 * Exynos5440 Clock restart notifier, handles restart functionality

 */

static struct notifier_block exynos5440_clk_restart_handler = {

	.notifier_call = exynos5440_clk_restart_notify,

	.priority = 128,

};



/* register exynos5440 clocks */

static void __init exynos5440_clk_init(struct device_node *np)

{

	void __iomem *reg_base;

	struct samsung_clk_provider *ctx;



	reg_base = of_iomap(np, 0);
@@ -125,6 +149,9 @@ static void __init exynos5440_clk_init(struct device_node *np) 


	samsung_clk_of_add_provider(np, ctx);



	if (register_restart_handler(&exynos5440_clk_restart_handler))

		pr_warn("exynos5440 clock can't register restart handler\n");



	pr_info("Exynos5440: arm_clk = %ldHz\n", _get_rate("arm_clk"));

	pr_info("exynos5440 clock initialization complete\n");

}

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