ARM: EXYNOS: Add PMU configuration registers to support suspend-to-RAM for Exynos3250

This patch add PMU (Power Management Unit) configuration registers to support
suspend-to-RAM for Exynos3250. This patch for Exynos3250 provides four power
modes. (Normal/AFTR/W-AFTR/Sleep)

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

2 files changed, 300 insertions, 1 deletions

diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/include/mach/regs-pmu.h
index 9320e103cc7..3fa864e9de1 100644
--- a/arch/arm/mach-exynos/include/mach/regs-pmu.h
+++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h
@@ -23,12 +23,33 @@
 
 #define S5P_CENTRAL_SEQ_OPTION			S5P_PMUREG(0x0208)
 
+#define S5P_SEQ_TRANSITION0			S5P_PMUREG(0x0220)
+#define S5P_SEQ_TRANSITION1			S5P_PMUREG(0x0224)
+#define S5P_SEQ_TRANSITION2			S5P_PMUREG(0x0228)
+
+#define S5P_SEQ_COREBLK_TRANSITION0		S5P_PMUREG(0x0260)
+#define S5P_SEQ_COREBLK_TRANSITION1		S5P_PMUREG(0x0264)
+#define S5P_SEQ_COREBLK_TRANSITION2		S5P_PMUREG(0x0268)
+#define S5P_SEQ_COREBLK_TRANSITION3		S5P_PMUREG(0x0270)
+#define S5P_SEQ_COREBLK_TRANSITION4		S5P_PMUREG(0x0274)
+#define S5P_SEQ_COREBLK_TRANSITION5		S5P_PMUREG(0x0278)
+
+#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_STANDBY_WFI0			(1 << 16)
 #define S5P_USE_STANDBY_WFI1			(1 << 17)
 #define S5P_USE_STANDBYWFI_ISP_ARM		(1 << 18)
+#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_STANDBYWFE_ISP_ARM		(1 << 26)
+#define S5P_USE_STANDBY_WFE2			(1 << 27)
+#define S5P_USE_STANDBY_WFE3			(1 << 28)
 
 #define S5P_SWRESET				S5P_PMUREG(0x0400)
 #define EXYNOS_SWRESET				S5P_PMUREG(0x0400)
@@ -150,6 +171,10 @@
 #define S5P_PAD_RET_EBIB_OPTION			S5P_PMUREG(0x31A8)
 
 #define S5P_PS_HOLD_CONTROL			S5P_PMUREG(0x330C)
+#define S5P_PS_HOLD_EN				(1 << 31)
+#define S5P_PS_HOLD_OUTPUT_HIGH			(3 << 8)
+
+#define S5P_PS_HOLD_CONTROL			S5P_PMUREG(0x330C)
 
 #define S5P_PMU_CAM_CONF			S5P_PMUREG(0x3C00)
 #define S5P_PMU_TV_CONF				S5P_PMUREG(0x3C20)
@@ -163,6 +188,12 @@
 #define S5P_INT_LOCAL_PWR_EN			0x7
 #define S5P_CORE_AUTOWAKEUP_EN			(1 << 31)
 
+#define S5P_MFC_OPTION				S5P_PMUREG(0x3C48)
+#define S5P_G3D_OPTION				S5P_PMUREG(0x3C68)
+#define S5P_LCD0_OPTION				S5P_PMUREG(0x3C88)
+#define S5P_LCD1_OPTION				S5P_PMUREG(0x3CA8)
+#define S5P_ISP_OPTION				S5P_LCD1_OPTION
+
 #define S5P_CHECK_SLEEP				0x00000BAD
 
 /* Only for EXYNOS4210 */
@@ -235,6 +266,114 @@
 /* For EXYNOS3 */
 #define EXYNOS3_COREPORESET(cpu)		((1 << 4) << cpu)
 
+#define EXYNOS3_ARM_CORE0_SYS_PWR_REG			S5P_PMUREG(0x1000)
+#define EXYNOS3_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG	S5P_PMUREG(0x1004)
+#define EXYNOS3_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG	S5P_PMUREG(0x1008)
+#define EXYNOS3_ARM_CORE1_SYS_PWR_REG			S5P_PMUREG(0x1010)
+#define EXYNOS3_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG	S5P_PMUREG(0x1014)
+#define EXYNOS3_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG	S5P_PMUREG(0x1018)
+#define EXYNOS3_ARM_CORE2_SYS_PWR_REG			S5P_PMUREG(0x1020)
+#define EXYNOS3_DIS_IRQ_ARM_CORE2_LOCAL_SYS_PWR_REG	S5P_PMUREG(0x1024)
+#define EXYNOS3_DIS_IRQ_ARM_CORE2_CENTRAL_SYS_PWR_REG	S5P_PMUREG(0x1028)
+#define EXYNOS3_ARM_CORE3_SYS_PWR_REG			S5P_PMUREG(0x1030)
+#define EXYNOS3_DIS_IRQ_ARM_CORE3_LOCAL_SYS_PWR_REG	S5P_PMUREG(0x1034)
+#define EXYNOS3_DIS_IRQ_ARM_CORE3_CENTRAL_SYS_PWR_REG	S5P_PMUREG(0x1038)
+#define EXYNOS3_ISP_ARM_SYS_PWR_REG			S5P_PMUREG(0x1050)
+#define EXYNOS3_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG	S5P_PMUREG(0x1054)
+#define EXYNOS3_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG	S5P_PMUREG(0x1058)
+#define EXYNOS3_ARM_COMMON_SYS_PWR_REG			S5P_PMUREG(0x1080)
+#define EXYNOS3_ARM_L2_SYS_PWR_REG			S5P_PMUREG(0x10C0)
+#define EXYNOS3_CMU_ACLKSTOP_SYS_PWR_REG		S5P_PMUREG(0x1100)
+#define EXYNOS3_CMU_SCLKSTOP_SYS_PWR_REG		S5P_PMUREG(0x1104)
+#define EXYNOS3_CMU_RESET_SYS_PWR_REG			S5P_PMUREG(0x110C)
+#define EXYNOS3_CMU_ACLKSTOP_COREBLK_SYS_PWR_REG	S5P_PMUREG(0x1110)
+#define EXYNOS3_CMU_SCLKSTOP_COREBLK_SYS_PWR_REG	S5P_PMUREG(0x1114)
+#define EXYNOS3_CMU_RESET_COREBLK_SYS_PWR_REG		S5P_PMUREG(0x111C)
+#define EXYNOS3_APLL_SYSCLK_SYS_PWR_REG			S5P_PMUREG(0x1120)
+#define EXYNOS3_MPLL_SYSCLK_SYS_PWR_REG			S5P_PMUREG(0x1124)
+#define EXYNOS3_VPLL_SYSCLK_SYS_PWR_REG			S5P_PMUREG(0x1128)
+#define EXYNOS3_EPLL_SYSCLK_SYS_PWR_REG			S5P_PMUREG(0x112C)
+#define EXYNOS3_MPLLUSER_SYSCLK_SYS_PWR_REG		S5P_PMUREG(0x1130)
+#define EXYNOS3_BPLLUSER_SYSCLK_SYS_PWR_REG		S5P_PMUREG(0x1134)
+#define EXYNOS3_EPLLUSER_SYSCLK_SYS_PWR_REG		S5P_PMUREG(0x1138)
+#define EXYNOS3_CMU_CLKSTOP_CAM_SYS_PWR_REG		S5P_PMUREG(0x1140)
+#define EXYNOS3_CMU_CLKSTOP_TV_SYS_PWR_REG		S5P_PMUREG(0x1144)
+#define EXYNOS3_CMU_CLKSTOP_MFC_SYS_PWR_REG		S5P_PMUREG(0x1148)
+#define EXYNOS3_CMU_CLKSTOP_G3D_SYS_PWR_REG		S5P_PMUREG(0x114C)
+#define EXYNOS3_CMU_CLKSTOP_LCD0_SYS_PWR_REG		S5P_PMUREG(0x1150)
+#define EXYNOS3_CMU_CLKSTOP_ISP_SYS_PWR_REG		S5P_PMUREG(0x1154)
+#define EXYNOS3_CMU_CLKSTOP_MAUDIO_SYS_PWR_REG		S5P_PMUREG(0x1158)
+#define EXYNOS3_CMU_RESET_CAM_SYS_PWR_REG		S5P_PMUREG(0x1160)
+#define EXYNOS3_CMU_RESET_MFC_SYS_PWR_REG		S5P_PMUREG(0x1168)
+#define EXYNOS3_CMU_RESET_G3D_SYS_PWR_REG		S5P_PMUREG(0x116C)
+#define EXYNOS3_CMU_RESET_LCD0_SYS_PWR_REG		S5P_PMUREG(0x1170)
+#define EXYNOS3_CMU_RESET_ISP_SYS_PWR_REG		S5P_PMUREG(0x1174)
+#define EXYNOS3_CMU_RESET_MAUDIO_SYS_PWR_REG		S5P_PMUREG(0x1178)
+#define EXYNOS3_TOP_BUS_SYS_PWR_REG			S5P_PMUREG(0x1180)
+#define EXYNOS3_TOP_RETENTION_SYS_PWR_REG		S5P_PMUREG(0x1184)
+#define EXYNOS3_TOP_PWR_SYS_PWR_REG			S5P_PMUREG(0x1188)
+#define EXYNOS3_TOP_BUS_COREBLK_SYS_PWR_REG		S5P_PMUREG(0x1190)
+#define EXYNOS3_TOP_RETENTION_COREBLK_SYS_PWR_REG	S5P_PMUREG(0x1194)
+#define EXYNOS3_TOP_PWR_COREBLK_SYS_PWR_REG		S5P_PMUREG(0x1198)
+#define EXYNOS3_LOGIC_RESET_SYS_PWR_REG			S5P_PMUREG(0x11A0)
+#define EXYNOS3_OSCCLK_GATE_SYS_PWR_REG			S5P_PMUREG(0x11A4)
+#define EXYNOS3_LOGIC_RESET_COREBLK_SYS_PWR_REG		S5P_PMUREG(0x11B0)
+#define EXYNOS3_OSCCLK_GATE_COREBLK_SYS_PWR_REG		S5P_PMUREG(0x11B4)
+#define EXYNOS3_PAD_RETENTION_DRAM_SYS_PWR_REG		S5P_PMUREG(0x1200)
+#define EXYNOS3_PAD_RETENTION_MAUDIO_SYS_PWR_REG	S5P_PMUREG(0x1204)
+#define EXYNOS3_PAD_RETENTION_SPI_SYS_PWR_REG		S5P_PMUREG(0x1208)
+#define EXYNOS3_PAD_RETENTION_MMC2_SYS_PWR_REG		S5P_PMUREG(0x1218)
+#define EXYNOS3_PAD_RETENTION_MMC3_SYS_PWR_REG		S5P_PMUREG(0x121C)
+#define EXYNOS3_PAD_RETENTION_GPIO_SYS_PWR_REG		S5P_PMUREG(0x1220)
+#define EXYNOS3_PAD_RETENTION_UART_SYS_PWR_REG		S5P_PMUREG(0x1224)
+#define EXYNOS3_PAD_RETENTION_MMC0_SYS_PWR_REG		S5P_PMUREG(0x1228)
+#define EXYNOS3_PAD_RETENTION_MMC1_SYS_PWR_REG		S5P_PMUREG(0x122C)
+#define EXYNOS3_PAD_RETENTION_EBIA_SYS_PWR_REG		S5P_PMUREG(0x1230)
+#define EXYNOS3_PAD_RETENTION_EBIB_SYS_PWR_REG		S5P_PMUREG(0x1234)
+#define EXYNOS3_PAD_RETENTION_JTAG_SYS_PWR_REG		S5P_PMUREG(0x1238)
+#define EXYNOS3_PAD_ISOLATION_SYS_PWR_REG		S5P_PMUREG(0x1240)
+#define EXYNOS3_PAD_ALV_SEL_SYS_PWR_REG			S5P_PMUREG(0x1260)
+#define EXYNOS3_XUSBXTI_SYS_PWR_REG			S5P_PMUREG(0x1280)
+#define EXYNOS3_XXTI_SYS_PWR_REG			S5P_PMUREG(0x1284)
+#define EXYNOS3_EXT_REGULATOR_SYS_PWR_REG		S5P_PMUREG(0x12C0)
+#define EXYNOS3_EXT_REGULATOR_COREBLK_SYS_PWR_REG	S5P_PMUREG(0x12C4)
+#define EXYNOS3_GPIO_MODE_SYS_PWR_REG			S5P_PMUREG(0x1300)
+#define EXYNOS3_GPIO_MODE_MAUDIO_SYS_PWR_REG		S5P_PMUREG(0x1340)
+#define EXYNOS3_TOP_ASB_RESET_SYS_PWR_REG		S5P_PMUREG(0x1344)
+#define EXYNOS3_TOP_ASB_ISOLATION_SYS_PWR_REG		S5P_PMUREG(0x1348)
+#define EXYNOS3_TOP_ASB_RESET_COREBLK_SYS_PWR_REG	S5P_PMUREG(0x1350)
+#define EXYNOS3_TOP_ASB_ISOLATION_COREBLK_SYS_PWR_REG	S5P_PMUREG(0x1354)
+#define EXYNOS3_CAM_SYS_PWR_REG				S5P_PMUREG(0x1380)
+#define EXYNOS3_MFC_SYS_PWR_REG				S5P_PMUREG(0x1388)
+#define EXYNOS3_G3D_SYS_PWR_REG				S5P_PMUREG(0x138C)
+#define EXYNOS3_LCD0_SYS_PWR_REG			S5P_PMUREG(0x1390)
+#define EXYNOS3_ISP_SYS_PWR_REG				S5P_PMUREG(0x1394)
+#define EXYNOS3_MAUDIO_SYS_PWR_REG			S5P_PMUREG(0x1398)
+#define EXYNOS3_DRAM_FREQ_DOWN_SYS_PWR_REG		S5P_PMUREG(0x13B0)
+#define EXYNOS3_DDRPHY_DLLOFF_SYS_PWR_REG		S5P_PMUREG(0x13B4)
+#define EXYNOS3_CMU_SYSCLK_ISP_SYS_PWR_REG		S5P_PMUREG(0x13B8)
+#define EXYNOS3_LPDDR_PHY_DLL_LOCK_SYS_PWR_REG		S5P_PMUREG(0x13C0)
+#define EXYNOS3_BPLL_SYSCLK_SYS_PWR_REG			S5P_PMUREG(0x13C4)
+#define EXYNOS3_UPLL_SYSCLK_SYS_PWR_REG			S5P_PMUREG(0x13C8)
+
+/* for exynos3 normal power register*/
+#define EXYNOS3_ARM_CORE0_OPTION			S5P_PMUREG(0x2008)
+#define EXYNOS3_ARM_CORE_OPTION(_nr)			(EXYNOS3_ARM_CORE0_OPTION + ((_nr) * 0x80))
+
+#define EXYNOS3_ARM_COMMON_OPTION			S5P_PMUREG(0x2408)
+#define EXYNOS3_TOP_PWR_OPTION				S5P_PMUREG(0x2C48)
+#define EXYNOS3_CORE_TOP_PWR_OPTION			S5P_PMUREG(0x2CA8)
+#define EXYNOS3_CORE_TOP_PWR_DURATION			S5P_PMUREG(0x2CB0)
+#define EXYNOS3_XUSBXTI_DURATION			S5P_PMUREG(0x341C)
+#define EXYNOS3_XXTI_DURATION				S5P_PMUREG(0x343C)
+#define EXYNOS3_EXT_REGULATOR_DURATION			S5P_PMUREG(0x361C)
+#define EXYNOS3_EXT_REGULATOR_COREBLK_DURATION		S5P_PMUREG(0x363C)
+
+/* 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_SYS_I2C_CFG					S5P_SYSREG(0x0234)
diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c
index 21cef18aff3..47796c7e31a 100644
--- a/arch/arm/mach-exynos/pmu.c
+++ b/arch/arm/mach-exynos/pmu.c
@@ -19,6 +19,98 @@
 
 static struct exynos_pmu_conf *exynos_pmu_config;
 
+static struct exynos_pmu_conf exynos3250_pmu_config[] = {
+	/* { .reg = address, .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_ARM_CORE2_SYS_PWR_REG,		{ 0x0, 0x0, 0x2} },
+	{ EXYNOS3_DIS_IRQ_ARM_CORE2_LOCAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },
+	{ EXYNOS3_DIS_IRQ_ARM_CORE2_CENTRAL_SYS_PWR_REG,{ 0x0, 0x0, 0x0} },
+	{ EXYNOS3_ARM_CORE3_SYS_PWR_REG,		{ 0x0, 0x0, 0x2} },
+	{ EXYNOS3_DIS_IRQ_ARM_CORE3_LOCAL_SYS_PWR_REG,	{ 0x0, 0x0, 0x0} },
+	{ EXYNOS3_DIS_IRQ_ARM_CORE3_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 struct exynos_pmu_conf exynos4210_pmu_config[] = {
 	/* { .reg = address, .val = { AFTR, LPA, SLEEP } */
 	{ S5P_ARM_CORE0_LOWPWR,			{ 0x0, 0x0, 0x2 } },
@@ -337,6 +429,34 @@ static void __iomem *exynos5_list_diable_wfi_wfe[] = {
 	EXYNOS5_ISP_ARM_OPTION,
 };
 
+static void __iomem *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_init_pmu(void)
+{
+	unsigned int i, tmp;
+
+	/* Enable only SC_FEEDBACK */
+	for (i = 0; i < ARRAY_SIZE(exynos3250_list_feed); i++) {
+		tmp = __raw_readl(exynos3250_list_feed[i]);
+		tmp &= ~(EXYNOS3_OPTION_USE_SC_COUNTER);
+		tmp |= EXYNOS3_OPTION_USE_SC_FEEDBACK;
+		__raw_writel(tmp, exynos3250_list_feed[i]);
+	}
+}
+
 static void exynos5_init_pmu(void)
 {
 	unsigned int i;
@@ -374,6 +494,19 @@ void exynos_sys_powerdown_conf(enum sys_powerdown mode)
 {
 	unsigned int i;
 
+	if (soc_is_exynos3250()) {
+		exynos3250_init_pmu();
+
+		if (mode == SYS_SLEEP) {
+			__raw_writel(0x00000BB8, EXYNOS3_XUSBXTI_DURATION);
+			__raw_writel(0x00000BB8, EXYNOS3_XXTI_DURATION);
+			__raw_writel(0x00001D4C,
+				     EXYNOS3_EXT_REGULATOR_DURATION);
+			__raw_writel(0x00001D4C,
+				     EXYNOS3_EXT_REGULATOR_COREBLK_DURATION);
+		}
+	}
+
 	if (soc_is_exynos5250())
 		exynos5_init_pmu();
 
@@ -394,7 +527,34 @@ static int __init exynos_pmu_init(void)
 
 	exynos_pmu_config = exynos4210_pmu_config;
 
-	if (soc_is_exynos4210()) {
+	if (soc_is_exynos3250()) {
+		/*
+		 * To prevent form issuing new bus request form L2 memory system
+		 * If core status is power down, should be set '1' to L2 power down
+		 */
+		value = __raw_readl(EXYNOS3_ARM_COMMON_OPTION);
+		value |= EXYNOS3_OPTION_SKIP_DEACTIVATE_ACEACP_IN_PWDN;
+		__raw_writel(value, EXYNOS3_ARM_COMMON_OPTION);
+
+		/* Enable USE_STANDBY_WFI for all CORE */
+		__raw_writel(S5P_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION);
+
+		/*
+		 * Set PSHOLD port for ouput high
+		 */
+		value = __raw_readl(S5P_PS_HOLD_CONTROL);
+		value |= S5P_PS_HOLD_OUTPUT_HIGH;
+		__raw_writel(value, S5P_PS_HOLD_CONTROL);
+		/*
+		 * Enable signal for PSHOLD port
+		 */
+		value = __raw_readl(S5P_PS_HOLD_CONTROL);
+		value |= S5P_PS_HOLD_EN;
+		__raw_writel(value, S5P_PS_HOLD_CONTROL);
+
+		exynos_pmu_config = exynos3250_pmu_config;
+		pr_info("EXYNOS3250 PMU Initialize\n");
+	} else if (soc_is_exynos4210()) {
 		exynos_pmu_config = exynos4210_pmu_config;
 		pr_info("EXYNOS4210 PMU Initialize\n");
 	} else if (soc_is_exynos4212() || soc_is_exynos4412()) {