This patch provides the suspend/resume support for EXYNOS4412.
Signed-off-by: Inderpal Singh <inderpal.si...@linaro.org>
---
arch/arm/mach-exynos/include/mach/regs-pmu.h | 10 +++++++++-
arch/arm/mach-exynos/pm.c | 2 +-
arch/arm/mach-exynos/pmu.c | 24 ++++++++++++++++++++----
3 files changed, 30 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h
b/arch/arm/mach-exynos/include/mach/regs-pmu.h
index 4c53f38..606b199 100644
--- a/arch/arm/mach-exynos/include/mach/regs-pmu.h
+++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h
@@ -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 */
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 428cfeb..f0bb467 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -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);
diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c
index bba48f5..77c6815 100644
--- a/arch/arm/mach-exynos/pmu.c
+++ b/arch/arm/mach-exynos/pmu.c
@@ -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");
}
--
1.7.5.4
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