Commit 5ddfa842 authored by Inderpal Singh's avatar Inderpal Singh Committed by Kukjin Kim
Browse files

ARM: EXYNOS: Support Suspend/Resume for EXYNOS4412 



This patch provides the suspend/resume support for EXYNOS4412.

Signed-off-by: default avatarInderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent f1cb86ec

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

+9 −1
Original line number Diff line number Diff line
@@ -177,7 +177,7 @@ 


#define S5P_PMU_LCD1_CONF		S5P_PMUREG(0x3CA0)



/* Only for EXYNOS4212 */

/* Only for EXYNOS4x12 */

#define S5P_ISP_ARM_LOWPWR			S5P_PMUREG(0x1050)

#define S5P_DIS_IRQ_ISP_ARM_LOCAL_LOWPWR	S5P_PMUREG(0x1054)

#define S5P_DIS_IRQ_ISP_ARM_CENTRAL_LOWPWR	S5P_PMUREG(0x1058)
@@ -218,4 +218,12 @@ 
#define S5P_SECSS_MEM_OPTION			S5P_PMUREG(0x2EC8)

#define S5P_ROTATOR_MEM_OPTION			S5P_PMUREG(0x2F48)



/* Only for EXYNOS4412 */

#define S5P_ARM_CORE2_LOWPWR			S5P_PMUREG(0x1020)

#define S5P_DIS_IRQ_CORE2			S5P_PMUREG(0x1024)

#define S5P_DIS_IRQ_CENTRAL2			S5P_PMUREG(0x1028)

#define S5P_ARM_CORE3_LOWPWR			S5P_PMUREG(0x1030)

#define S5P_DIS_IRQ_CORE3			S5P_PMUREG(0x1034)

#define S5P_DIS_IRQ_CENTRAL3			S5P_PMUREG(0x1038)



#endif /* __ASM_ARCH_REGS_PMU_H */

arch/arm/mach-exynos/pm.c

+1 −1
Original line number Diff line number Diff line
@@ -313,7 +313,7 @@ static int exynos4_pm_suspend(void) 
	tmp &= ~S5P_CENTRAL_LOWPWR_CFG;

	__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);



	if (soc_is_exynos4212()) {

	if (soc_is_exynos4212() || soc_is_exynos4412()) {

		tmp = __raw_readl(S5P_CENTRAL_SEQ_OPTION);

		tmp &= ~(S5P_USE_STANDBYWFI_ISP_ARM |

			 S5P_USE_STANDBYWFE_ISP_ARM);

arch/arm/mach-exynos/pmu.c

+20 −4
Original line number Diff line number Diff line
@@ -94,7 +94,7 @@ static struct exynos4_pmu_conf exynos4210_pmu_config[] = { 
	{ PMU_TABLE_END,},

};



static struct exynos4_pmu_conf exynos4212_pmu_config[] = {

static struct exynos4_pmu_conf exynos4x12_pmu_config[] = {

	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },

	{ S5P_DIS_IRQ_CORE0,			{ 0x0, 0x0, 0x0 } },

	{ S5P_DIS_IRQ_CENTRAL0,			{ 0x0, 0x0, 0x0 } },
@@ -202,6 +202,16 @@ static struct exynos4_pmu_conf exynos4212_pmu_config[] = { 
	{ PMU_TABLE_END,},

};



static struct exynos4_pmu_conf exynos4412_pmu_config[] = {

	{ S5P_ARM_CORE2_LOWPWR,			{ 0x0, 0x0, 0x2 } },

	{ S5P_DIS_IRQ_CORE2,			{ 0x0, 0x0, 0x0 } },

	{ S5P_DIS_IRQ_CENTRAL2,			{ 0x0, 0x0, 0x0 } },

	{ S5P_ARM_CORE3_LOWPWR,			{ 0x0, 0x0, 0x2 } },

	{ S5P_DIS_IRQ_CORE3,			{ 0x0, 0x0, 0x0 } },

	{ S5P_DIS_IRQ_CENTRAL3,			{ 0x0, 0x0, 0x0 } },

	{ PMU_TABLE_END,},

};



void exynos4_sys_powerdown_conf(enum sys_powerdown mode)

{

	unsigned int i;
@@ -209,6 +219,12 @@ void exynos4_sys_powerdown_conf(enum sys_powerdown mode) 
	for (i = 0; (exynos4_pmu_config[i].reg != PMU_TABLE_END) ; i++)

		__raw_writel(exynos4_pmu_config[i].val[mode],

				exynos4_pmu_config[i].reg);



	if (soc_is_exynos4412()) {

		for (i = 0; exynos4412_pmu_config[i].reg != PMU_TABLE_END ; i++)

			__raw_writel(exynos4412_pmu_config[i].val[mode],

				exynos4412_pmu_config[i].reg);

	}

}



static int __init exynos4_pmu_init(void)
@@ -218,9 +234,9 @@ static int __init exynos4_pmu_init(void) 
	if (soc_is_exynos4210()) {

		exynos4_pmu_config = exynos4210_pmu_config;

		pr_info("EXYNOS4210 PMU Initialize\n");

	} else if (soc_is_exynos4212()) {

		exynos4_pmu_config = exynos4212_pmu_config;

		pr_info("EXYNOS4212 PMU Initialize\n");

	} else if (soc_is_exynos4212() || soc_is_exynos4412()) {

		exynos4_pmu_config = exynos4x12_pmu_config;

		pr_info("EXYNOS4x12 PMU Initialize\n");

	} else {

		pr_info("EXYNOS4: PMU not supported\n");

	}