1 files changed, 106 insertions, 177 deletions

diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 87c0d34c7fba..abefacb45976 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -28,13 +28,13 @@
 #include <asm/suspend.h>
 
 #include <plat/pm-common.h>
-#include <plat/pll.h>
 #include <plat/regs-srom.h>
 
 #include <mach/map.h>
 
 #include "common.h"
 #include "regs-pmu.h"
+#include "regs-sys.h"
 
 /**
  * struct exynos_wkup_irq - Exynos GIC to PMU IRQ mapping
@@ -100,102 +100,20 @@ static int exynos_irq_set_wake(struct irq_data *data, unsigned int state)
 	return -ENOENT;
 }
 
-/**
- * exynos_core_power_down : power down the specified cpu
- * @cpu : the cpu to power down
- *
- * Power down the specified cpu. The sequence must be finished by a
- * call to cpu_do_idle()
- *
- */
-void exynos_cpu_power_down(int cpu)
-{
-	__raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu));
-}
-
-/**
- * exynos_cpu_power_up : power up the specified cpu
- * @cpu : the cpu to power up
- *
- * Power up the specified cpu
- */
-void exynos_cpu_power_up(int cpu)
-{
-	__raw_writel(S5P_CORE_LOCAL_PWR_EN,
-		     EXYNOS_ARM_CORE_CONFIGURATION(cpu));
-}
-
-/**
- * exynos_cpu_power_state : returns the power state of the cpu
- * @cpu : the cpu to retrieve the power state from
- *
- */
-int exynos_cpu_power_state(int cpu)
-{
-	return (__raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) &
-			S5P_CORE_LOCAL_PWR_EN);
-}
-
-/**
- * exynos_cluster_power_down : power down the specified cluster
- * @cluster : the cluster to power down
- */
-void exynos_cluster_power_down(int cluster)
-{
-	__raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster));
-}
-
-/**
- * exynos_cluster_power_up : power up the specified cluster
- * @cluster : the cluster to power up
- */
-void exynos_cluster_power_up(int cluster)
-{
-	__raw_writel(S5P_CORE_LOCAL_PWR_EN,
-		     EXYNOS_COMMON_CONFIGURATION(cluster));
-}
-
-/**
- * exynos_cluster_power_state : returns the power state of the cluster
- * @cluster : the cluster to retrieve the power state from
- *
- */
-int exynos_cluster_power_state(int cluster)
-{
-	return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) &
-			S5P_CORE_LOCAL_PWR_EN);
-}
-
 #define EXYNOS_BOOT_VECTOR_ADDR	(samsung_rev() == EXYNOS4210_REV_1_1 ? \
-			S5P_INFORM7 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \
-			(sysram_base_addr + 0x24) : S5P_INFORM0))
+			pmu_base_addr + S5P_INFORM7 : \
+			(samsung_rev() == EXYNOS4210_REV_1_0 ? \
+			(sysram_base_addr + 0x24) : \
+			pmu_base_addr + S5P_INFORM0))
 #define EXYNOS_BOOT_VECTOR_FLAG	(samsung_rev() == EXYNOS4210_REV_1_1 ? \
-			S5P_INFORM6 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \
-			(sysram_base_addr + 0x20) : S5P_INFORM1))
+			pmu_base_addr + S5P_INFORM6 : \
+			(samsung_rev() == EXYNOS4210_REV_1_0 ? \
+			(sysram_base_addr + 0x20) : \
+			pmu_base_addr + S5P_INFORM1))
 
 #define S5P_CHECK_AFTR  0xFCBA0D10
 #define S5P_CHECK_SLEEP 0x00000BAD
 
-/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */
-static void exynos_set_wakeupmask(long mask)
-{
-	__raw_writel(mask, S5P_WAKEUP_MASK);
-}
-
-static void exynos_cpu_set_boot_vector(long flags)
-{
-	__raw_writel(virt_to_phys(exynos_cpu_resume), EXYNOS_BOOT_VECTOR_ADDR);
-	__raw_writel(flags, EXYNOS_BOOT_VECTOR_FLAG);
-}
-
-void exynos_enter_aftr(void)
-{
-	exynos_set_wakeupmask(0x0000ff3e);
-	exynos_cpu_set_boot_vector(S5P_CHECK_AFTR);
-	/* Set value of power down register for aftr mode */
-	exynos_sys_powerdown_conf(SYS_AFTR);
-}
-
 /* For Cortex-A9 Diagnostic and Power control register */
 static unsigned int save_arm_register[2];
 
@@ -235,6 +153,82 @@ static void exynos_cpu_restore_register(void)
 		      : "cc");
 }
 
+static void exynos_pm_central_suspend(void)
+{
+	unsigned long tmp;
+
+	/* Setting Central Sequence Register for power down mode */
+	tmp = pmu_raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
+	tmp &= ~S5P_CENTRAL_LOWPWR_CFG;
+	pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
+}
+
+static int exynos_pm_central_resume(void)
+{
+	unsigned long tmp;
+
+	/*
+	 * If PMU failed while entering sleep mode, WFI will be
+	 * ignored by PMU and then exiting cpu_do_idle().
+	 * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically
+	 * in this situation.
+	 */
+	tmp = pmu_raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
+	if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) {
+		tmp |= S5P_CENTRAL_LOWPWR_CFG;
+		pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
+		/* clear the wakeup state register */
+		pmu_raw_writel(0x0, S5P_WAKEUP_STAT);
+		/* No need to perform below restore code */
+		return -1;
+	}
+
+	return 0;
+}
+
+/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */
+static void exynos_set_wakeupmask(long mask)
+{
+	pmu_raw_writel(mask, S5P_WAKEUP_MASK);
+}
+
+static void exynos_cpu_set_boot_vector(long flags)
+{
+	__raw_writel(virt_to_phys(exynos_cpu_resume), EXYNOS_BOOT_VECTOR_ADDR);
+	__raw_writel(flags, EXYNOS_BOOT_VECTOR_FLAG);
+}
+
+static int exynos_aftr_finisher(unsigned long flags)
+{
+	exynos_set_wakeupmask(0x0000ff3e);
+	exynos_cpu_set_boot_vector(S5P_CHECK_AFTR);
+	/* Set value of power down register for aftr mode */
+	exynos_sys_powerdown_conf(SYS_AFTR);
+	cpu_do_idle();
+
+	return 1;
+}
+
+void exynos_enter_aftr(void)
+{
+	cpu_pm_enter();
+
+	exynos_pm_central_suspend();
+	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
+		exynos_cpu_save_register();
+
+	cpu_suspend(0, exynos_aftr_finisher);
+
+	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) {
+		scu_enable(S5P_VA_SCU);
+		exynos_cpu_restore_register();
+	}
+
+	exynos_pm_central_resume();
+
+	cpu_pm_exit();
+}
+
 static int exynos_cpu_suspend(unsigned long arg)
 {
 #ifdef CONFIG_CACHE_L2X0
@@ -256,37 +250,27 @@ static void exynos_pm_prepare(void)
 	unsigned int tmp;
 
 	/* Set wake-up mask registers */
-	__raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK);
-	__raw_writel(exynos_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK);
+	pmu_raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK);
+	pmu_raw_writel(exynos_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK);
 
 	s3c_pm_do_save(exynos_core_save, ARRAY_SIZE(exynos_core_save));
 
 	if (soc_is_exynos5250()) {
 		s3c_pm_do_save(exynos5_sys_save, ARRAY_SIZE(exynos5_sys_save));
 		/* Disable USE_RETENTION of JPEG_MEM_OPTION */
-		tmp = __raw_readl(EXYNOS5_JPEG_MEM_OPTION);
+		tmp = pmu_raw_readl(EXYNOS5_JPEG_MEM_OPTION);
 		tmp &= ~EXYNOS5_OPTION_USE_RETENTION;
-		__raw_writel(tmp, EXYNOS5_JPEG_MEM_OPTION);
+		pmu_raw_writel(tmp, EXYNOS5_JPEG_MEM_OPTION);
 	}
 
 	/* Set value of power down register for sleep mode */
 
 	exynos_sys_powerdown_conf(SYS_SLEEP);
-	__raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1);
+	pmu_raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1);
 
 	/* ensure at least INFORM0 has the resume address */
 
-	__raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
-}
-
-static void exynos_pm_central_suspend(void)
-{
-	unsigned long tmp;
-
-	/* Setting Central Sequence Register for power down mode */
-	tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
-	tmp &= ~S5P_CENTRAL_LOWPWR_CFG;
-	__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
+	pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
 }
 
 static int exynos_pm_suspend(void)
@@ -298,54 +282,31 @@ static int exynos_pm_suspend(void)
 	/* Setting SEQ_OPTION register */
 
 	tmp = (S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0);
-	__raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
+	pmu_raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION);
 
-	if (!soc_is_exynos5250())
+	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
 		exynos_cpu_save_register();
 
 	return 0;
 }
 
-static int exynos_pm_central_resume(void)
-{
-	unsigned long tmp;
-
-	/*
-	 * If PMU failed while entering sleep mode, WFI will be
-	 * ignored by PMU and then exiting cpu_do_idle().
-	 * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically
-	 * in this situation.
-	 */
-	tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION);
-	if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) {
-		tmp |= S5P_CENTRAL_LOWPWR_CFG;
-		__raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION);
-		/* clear the wakeup state register */
-		__raw_writel(0x0, S5P_WAKEUP_STAT);
-		/* No need to perform below restore code */
-		return -1;
-	}
-
-	return 0;
-}
-
 static void exynos_pm_resume(void)
 {
 	if (exynos_pm_central_resume())
 		goto early_wakeup;
 
-	if (!soc_is_exynos5250())
+	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
 		exynos_cpu_restore_register();
 
 	/* For release retention */
 
-	__raw_writel((1 << 28), S5P_PAD_RET_MAUDIO_OPTION);
-	__raw_writel((1 << 28), S5P_PAD_RET_GPIO_OPTION);
-	__raw_writel((1 << 28), S5P_PAD_RET_UART_OPTION);
-	__raw_writel((1 << 28), S5P_PAD_RET_MMCA_OPTION);
-	__raw_writel((1 << 28), S5P_PAD_RET_MMCB_OPTION);
-	__raw_writel((1 << 28), S5P_PAD_RET_EBIA_OPTION);
-	__raw_writel((1 << 28), S5P_PAD_RET_EBIB_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_MAUDIO_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_GPIO_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_UART_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_MMCA_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_MMCB_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_EBIA_OPTION);
+	pmu_raw_writel((1 << 28), S5P_PAD_RET_EBIB_OPTION);
 
 	if (soc_is_exynos5250())
 		s3c_pm_do_restore(exynos5_sys_save,
@@ -353,13 +314,13 @@ static void exynos_pm_resume(void)
 
 	s3c_pm_do_restore_core(exynos_core_save, ARRAY_SIZE(exynos_core_save));
 
-	if (!soc_is_exynos5250())
+	if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
 		scu_enable(S5P_VA_SCU);
 
 early_wakeup:
 
 	/* Clear SLEEP mode set in INFORM1 */
-	__raw_writel(0x0, S5P_INFORM1);
+	pmu_raw_writel(0x0, S5P_INFORM1);
 
 	return;
 }
@@ -403,7 +364,7 @@ static int exynos_suspend_enter(suspend_state_t state)
 	s3c_pm_restore_uarts();
 
 	S3C_PMDBG("%s: wakeup stat: %08x\n", __func__,
-			__raw_readl(S5P_WAKEUP_STAT));
+			pmu_raw_readl(S5P_WAKEUP_STAT));
 
 	s3c_pm_check_restore();
 
@@ -431,49 +392,17 @@ static const struct platform_suspend_ops exynos_suspend_ops = {
 	.valid		= suspend_valid_only_mem,
 };
 
-static int exynos_cpu_pm_notifier(struct notifier_block *self,
-				  unsigned long cmd, void *v)
-{
-	int cpu = smp_processor_id();
-
-	switch (cmd) {
-	case CPU_PM_ENTER:
-		if (cpu == 0) {
-			exynos_pm_central_suspend();
-			exynos_cpu_save_register();
-		}
-		break;
-
-	case CPU_PM_EXIT:
-		if (cpu == 0) {
-			if (!soc_is_exynos5250())
-				scu_enable(S5P_VA_SCU);
-			exynos_cpu_restore_register();
-			exynos_pm_central_resume();
-		}
-		break;
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block exynos_cpu_pm_notifier_block = {
-	.notifier_call = exynos_cpu_pm_notifier,
-};
-
 void __init exynos_pm_init(void)
 {
 	u32 tmp;
 
-	cpu_pm_register_notifier(&exynos_cpu_pm_notifier_block);
-
 	/* Platform-specific GIC callback */
 	gic_arch_extn.irq_set_wake = exynos_irq_set_wake;
 
 	/* All wakeup disable */
-	tmp = __raw_readl(S5P_WAKEUP_MASK);
+	tmp = pmu_raw_readl(S5P_WAKEUP_MASK);
 	tmp |= ((0xFF << 8) | (0x1F << 1));
-	__raw_writel(tmp, S5P_WAKEUP_MASK);
+	pmu_raw_writel(tmp, S5P_WAKEUP_MASK);
 
 	register_syscore_ops(&exynos_pm_syscore_ops);
 	suspend_set_ops(&exynos_suspend_ops);