From: Abhilash Kesavan <a.kesavan@samsung.com> To: kgene.kim@samsung.com, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: Abhilash Kesavan <a.kesavan@samsung.com>, Thomas Abraham <thomas.ab@samsung.com> Subject: [PATCH] ARM: EXYNOS5: Add PMU settings for exynos5420 Date: Wed, 11 Dec 2013 17:29:53 +0530 [thread overview] Message-ID: <1386763193-8573-1-git-send-email-a.kesavan@samsung.com> (raw) Add intial PMU settings for exynos5420. This is required for future S2R and Switching support. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> --- arch/arm/mach-exynos/include/mach/regs-pmu.h | 82 ++++++++++++++++++++ arch/arm/mach-exynos/pmu.c | 106 ++++++++++++++++++++++++++ 2 files changed, 188 insertions(+) diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/include/mach/regs-pmu.h index 2cdb63e..d5d5386 100644 --- a/arch/arm/mach-exynos/include/mach/regs-pmu.h +++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h @@ -53,6 +53,8 @@ #define S5P_INFORM6 S5P_PMUREG(0x0818) #define S5P_INFORM7 S5P_PMUREG(0x081C) +#define S5P_PMU_SPARE3 S5P_PMUREG(0x090C) + #define S5P_ARM_CORE0_LOWPWR S5P_PMUREG(0x1000) #define S5P_DIS_IRQ_CORE0 S5P_PMUREG(0x1004) #define S5P_DIS_IRQ_CENTRAL0 S5P_PMUREG(0x1008) @@ -365,4 +367,84 @@ #define EXYNOS5_OPTION_USE_RETENTION (1 << 4) +/* Only for EXYNOS5420 */ +#define EXYNOS5420_LPI_MASK S5P_PMUREG(0x0004) +#define EXYNOS5420_LPI_MASK1 S5P_PMUREG(0x0008) +#define EXYNOS5420_ARM_INTR_SPREAD_ENABLE S5P_PMUREG(0x0100) +#define EXYNOS5420_ARM_INTR_SPREAD_USE_STANDBYWFI S5P_PMUREG(0x0104) +#define EXYNOS5420_UP_SCHEDULER S5P_PMUREG(0x0120) +#define EXYNOS5420_CMU_CLKSTOP_DISP1_SYS_PWR_REG S5P_PMUREG(0x1490) +#define EXYNOS5420_CMU_CLKSTOP_MAU_SYS_PWR_REG S5P_PMUREG(0x1494) +#define EXYNOS5420_CMU_CLKSTOP_G2D_SYS_PWR_REG S5P_PMUREG(0x1498) +#define EXYNOS5420_CMU_CLKSTOP_MSC_SYS_PWR_REG S5P_PMUREG(0x149C) +#define EXYNOS5420_CMU_CLKSTOP_FSYS_SYS_PWR_REG S5P_PMUREG(0x14A0) +#define EXYNOS5420_CMU_CLKSTOP_FSYS2_SYS_PWR_REG S5P_PMUREG(0x14A4) +#define EXYNOS5420_CMU_CLKSTOP_PSGEN_SYS_PWR_REG S5P_PMUREG(0x14A8) +#define EXYNOS5420_CMU_CLKSTOP_PERIC_SYS_PWR_REG S5P_PMUREG(0x14AC) +#define EXYNOS5420_CMU_CLKSTOP_WCORE_SYS_PWR_REG S5P_PMUREG(0x14B0) +#define EXYNOS5420_CMU_SYSCLK_TOPPWR_SYS_PWR_REG S5P_PMUREG(0x14BC) +#define EXYNOS5420_CMU_SYSCLK_DISP1_SYS_PWR_REG S5P_PMUREG(0x14D0) +#define EXYNOS5420_CMU_SYSCLK_MAU_SYS_PWR_REG S5P_PMUREG(0x14D4) +#define EXYNOS5420_CMU_SYSCLK_G2D_SYS_PWR_REG S5P_PMUREG(0x14D8) +#define EXYNOS5420_CMU_SYSCLK_MSC_SYS_PWR_REG S5P_PMUREG(0x14DC) +#define EXYNOS5420_CMU_SYSCLK_FSYS_SYS_PWR_REG S5P_PMUREG(0x14E0) +#define EXYNOS5420_CMU_SYSCLK_FSYS2_SYS_PWR_REG S5P_PMUREG(0x14E4) +#define EXYNOS5420_CMU_SYSCLK_PSGEN_SYS_PWR_REG S5P_PMUREG(0x14E8) +#define EXYNOS5420_CMU_SYSCLK_PERIC_SYS_PWR_REG S5P_PMUREG(0x14EC) +#define EXYNOS5420_CMU_SYSCLK_WCORE_SYS_PWR_REG S5P_PMUREG(0x14F0) +#define EXYNOS5420_CMU_SYSCLK_SYSMEM_TOPPWR_SYS_PWR_REG S5P_PMUREG(0x14F4) +#define EXYNOS5420_CMU_RESET_FSYS2_SYS_PWR_REG S5P_PMUREG(0x1570) +#define EXYNOS5420_CMU_RESET_PSGEN_SYS_PWR_REG S5P_PMUREG(0x1574) +#define EXYNOS5420_CMU_RESET_PERIC_SYS_PWR_REG S5P_PMUREG(0x1578) +#define EXYNOS5420_CMU_RESET_WCORE_SYS_PWR_REG S5P_PMUREG(0x157C) +#define EXYNOS5420_CMU_RESET_DISP1_SYS_PWR_REG S5P_PMUREG(0x1590) +#define EXYNOS5420_CMU_RESET_MAU_SYS_PWR_REG S5P_PMUREG(0x1594) +#define EXYNOS5420_CMU_RESET_G2D_SYS_PWR_REG S5P_PMUREG(0x1598) +#define EXYNOS5420_CMU_RESET_MSC_SYS_PWR_REG S5P_PMUREG(0x159C) +#define EXYNOS5420_CMU_RESET_FSYS_SYS_PWR_REG S5P_PMUREG(0x15A0) +#define EXYNOS5420_ARM_COMMON_STATUS S5P_PMUREG(0x2504) +#define EXYNOS5420_ARM_COMMON_OPTION S5P_PMUREG(0x2508) +#define EXYNOS5420_KFC_COMMON_STATUS S5P_PMUREG(0x2584) +#define EXYNOS5420_KFC_COMMON_OPTION S5P_PMUREG(0x2588) +#define EXYNOS5420_ARM_L2_OPTION S5P_PMUREG(0x2608) +#define EXYNOS5420_KFC_L2_OPTION S5P_PMUREG(0x2688) +#define EXYNOS5420_LOGIC_RESET_DURATION3 S5P_PMUREG(0x2D1C) + +#define EXYNOS5_XXTI_DURATION3 S5P_PMUREG(0x343C) + +/* For EXYNOS_CENTRAL_SEQ_OPTION */ +#define EXYNOS5420_ARM_USE_STANDBY_WFI0 (1 << 4) +#define EXYNOS5420_ARM_USE_STANDBY_WFI1 (1 << 5) +#define EXYNOS5420_ARM_USE_STANDBY_WFI2 (1 << 6) +#define EXYNOS5420_ARM_USE_STANDBY_WFI3 (1 << 7) +#define EXYNOS5420_KFC_USE_STANDBY_WFI0 (1 << 8) +#define EXYNOS5420_KFC_USE_STANDBY_WFI1 (1 << 9) +#define EXYNOS5420_KFC_USE_STANDBY_WFI2 (1 << 10) +#define EXYNOS5420_KFC_USE_STANDBY_WFI3 (1 << 11) +#define EXYNOS5420_ARM_USE_STANDBY_WFE0 (1 << 16) +#define EXYNOS5420_ARM_USE_STANDBY_WFE1 (1 << 17) +#define EXYNOS5420_ARM_USE_STANDBY_WFE2 (1 << 18) +#define EXYNOS5420_ARM_USE_STANDBY_WFE3 (1 << 19) +#define EXYNOS5420_KFC_USE_STANDBY_WFE0 (1 << 20) +#define EXYNOS5420_KFC_USE_STANDBY_WFE1 (1 << 21) +#define EXYNOS5420_KFC_USE_STANDBY_WFE2 (1 << 22) +#define EXYNOS5420_KFC_USE_STANDBY_WFE3 (1 << 23) + +#define EXYNOS5420_USE_STANDBY_WFI_ALL (EXYNOS5420_ARM_USE_STANDBY_WFI0 \ + | EXYNOS5420_ARM_USE_STANDBY_WFI1 \ + | EXYNOS5420_ARM_USE_STANDBY_WFI2 \ + | EXYNOS5420_ARM_USE_STANDBY_WFI3 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI0 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI1 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI2 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI3) + +#define EXYNOS5420_ATB_KFC (1 << 13) +#define EXYNOS5420_ATB_ISP_ARM (1 << 19) + +#define DUR_WAIT_RESET 0xF +#define SPREAD_ENABLE 0xF +#define SPREAD_USE_STANDWFI 0xF +#define EXYNOS5420_SWRESET_KFC_SEL 0x3 + #endif /* __ASM_ARCH_REGS_PMU_H */ diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c index 97d6885..2dd21bc 100644 --- a/arch/arm/mach-exynos/pmu.c +++ b/arch/arm/mach-exynos/pmu.c @@ -14,6 +14,7 @@ #include <linux/bug.h> #include <mach/regs-clock.h> +#include <mach/regs-pmu.h> #include "common.h" @@ -337,6 +338,46 @@ static void __iomem *exynos5_list_diable_wfi_wfe[] = { EXYNOS5_ISP_ARM_OPTION, }; +void __iomem *exynos5420_list_disable_pmu_reg[] = { + EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG, + EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG, + EXYNOS5_CMU_CLKSTOP_MFC_SYS_PWR_REG, + EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_DISP1_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_MAU_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_G2D_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_MSC_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_FSYS_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_PSGEN_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_PERIC_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_WCORE_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_MFC_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_DISP1_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_MAU_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_G2D_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_MSC_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_FSYS_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_FSYS2_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_PSGEN_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_PERIC_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_WCORE_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_FSYS2_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_PSGEN_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_PERIC_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_WCORE_SYS_PWR_REG, + EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG, + EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG, + EXYNOS5_CMU_RESET_MFC_SYS_PWR_REG, + EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_DISP1_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_MAU_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_G2D_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_MSC_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_FSYS_SYS_PWR_REG, +}; static void exynos5_init_pmu(void) { unsigned int i; @@ -391,6 +432,7 @@ void exynos_sys_powerdown_conf(enum sys_powerdown mode) static int __init exynos_pmu_init(void) { unsigned int value; + unsigned int i; exynos_pmu_config = exynos4210_pmu_config; @@ -415,6 +457,70 @@ static int __init exynos_pmu_init(void) exynos_pmu_config = exynos5250_pmu_config; pr_info("EXYNOS5250 PMU Initialize\n"); + } else if (soc_is_exynos5420()) { + /* + * Set the CMU_RESET, CMU_SYSCLK and CMU_CLKSTOP registers + * for local power blocks to Low initially as per Table 8-4: + * "System-Level Power-Down Configuration Registers". + */ + for (i = 0; i < ARRAY_SIZE(exynos5420_list_disable_pmu_reg); i++) + __raw_writel(0x0, exynos5420_list_disable_pmu_reg[i]); + + /* Time taken to stabilized XXTI clock */ + __raw_writel(0x005dc, EXYNOS5_XXTI_DURATION3); + + /* Enable USE_STANDBY_WFI for all CORE */ + __raw_writel(EXYNOS5420_USE_STANDBY_WFI_ALL, + S5P_CENTRAL_SEQ_OPTION); + + value = __raw_readl(EXYNOS5420_ARM_L2_OPTION); + value &= ~EXYNOS5_OPTION_USE_RETENTION; + __raw_writel(value, EXYNOS5420_ARM_L2_OPTION); + + value = __raw_readl(EXYNOS5420_KFC_L2_OPTION); + value &= ~EXYNOS5_OPTION_USE_RETENTION; + __raw_writel(value, EXYNOS5420_KFC_L2_OPTION); + + /* + * If L2_COMMON is turned off, clocks related to ATB async + * bridge are gated. Thus, when ISP power is gated, LPI + * may get stuck. + */ + value = __raw_readl(EXYNOS5420_LPI_MASK); + value |= EXYNOS5420_ATB_ISP_ARM; + __raw_writel(value, EXYNOS5420_LPI_MASK); + value = __raw_readl(EXYNOS5420_LPI_MASK1); + value |= EXYNOS5420_ATB_KFC; + __raw_writel(value, EXYNOS5420_LPI_MASK1); + + /* Prevent issue of new bus request from L2 memory */ + value = __raw_readl(EXYNOS5420_ARM_COMMON_OPTION); + value |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN; + value &= ~EXYNOS5_USE_SC_COUNTER; + value |= EXYNOS5_USE_SC_FEEDBACK; + __raw_writel(value, EXYNOS5420_ARM_COMMON_OPTION); + + value = __raw_readl(EXYNOS5420_KFC_COMMON_OPTION); + value |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN; + value &= ~EXYNOS5_USE_SC_COUNTER; + value |= EXYNOS5_USE_SC_FEEDBACK; + __raw_writel(value, EXYNOS5420_KFC_COMMON_OPTION); + + /* Increase stability of KFC Reset */ + __raw_writel(EXYNOS5420_SWRESET_KFC_SEL, S5P_PMU_SPARE3); + + /* + * This setting is to reduce suspend/resume time. + */ + __raw_writel(DUR_WAIT_RESET, EXYNOS5420_LOGIC_RESET_DURATION3); + + /* Serialized CPU wakeup of Eagle */ + __raw_writel(SPREAD_ENABLE, EXYNOS5420_ARM_INTR_SPREAD_ENABLE); + __raw_writel(SPREAD_USE_STANDWFI, + EXYNOS5420_ARM_INTR_SPREAD_USE_STANDBYWFI); + __raw_writel(0x1, EXYNOS5420_UP_SCHEDULER); + + pr_info("EXYNOS5420 PMU Initialized\n"); } else { pr_info("EXYNOS: PMU not supported\n"); } -- 1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: a.kesavan@samsung.com (Abhilash Kesavan) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] ARM: EXYNOS5: Add PMU settings for exynos5420 Date: Wed, 11 Dec 2013 17:29:53 +0530 [thread overview] Message-ID: <1386763193-8573-1-git-send-email-a.kesavan@samsung.com> (raw) Add intial PMU settings for exynos5420. This is required for future S2R and Switching support. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> --- arch/arm/mach-exynos/include/mach/regs-pmu.h | 82 ++++++++++++++++++++ arch/arm/mach-exynos/pmu.c | 106 ++++++++++++++++++++++++++ 2 files changed, 188 insertions(+) diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/include/mach/regs-pmu.h index 2cdb63e..d5d5386 100644 --- a/arch/arm/mach-exynos/include/mach/regs-pmu.h +++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h @@ -53,6 +53,8 @@ #define S5P_INFORM6 S5P_PMUREG(0x0818) #define S5P_INFORM7 S5P_PMUREG(0x081C) +#define S5P_PMU_SPARE3 S5P_PMUREG(0x090C) + #define S5P_ARM_CORE0_LOWPWR S5P_PMUREG(0x1000) #define S5P_DIS_IRQ_CORE0 S5P_PMUREG(0x1004) #define S5P_DIS_IRQ_CENTRAL0 S5P_PMUREG(0x1008) @@ -365,4 +367,84 @@ #define EXYNOS5_OPTION_USE_RETENTION (1 << 4) +/* Only for EXYNOS5420 */ +#define EXYNOS5420_LPI_MASK S5P_PMUREG(0x0004) +#define EXYNOS5420_LPI_MASK1 S5P_PMUREG(0x0008) +#define EXYNOS5420_ARM_INTR_SPREAD_ENABLE S5P_PMUREG(0x0100) +#define EXYNOS5420_ARM_INTR_SPREAD_USE_STANDBYWFI S5P_PMUREG(0x0104) +#define EXYNOS5420_UP_SCHEDULER S5P_PMUREG(0x0120) +#define EXYNOS5420_CMU_CLKSTOP_DISP1_SYS_PWR_REG S5P_PMUREG(0x1490) +#define EXYNOS5420_CMU_CLKSTOP_MAU_SYS_PWR_REG S5P_PMUREG(0x1494) +#define EXYNOS5420_CMU_CLKSTOP_G2D_SYS_PWR_REG S5P_PMUREG(0x1498) +#define EXYNOS5420_CMU_CLKSTOP_MSC_SYS_PWR_REG S5P_PMUREG(0x149C) +#define EXYNOS5420_CMU_CLKSTOP_FSYS_SYS_PWR_REG S5P_PMUREG(0x14A0) +#define EXYNOS5420_CMU_CLKSTOP_FSYS2_SYS_PWR_REG S5P_PMUREG(0x14A4) +#define EXYNOS5420_CMU_CLKSTOP_PSGEN_SYS_PWR_REG S5P_PMUREG(0x14A8) +#define EXYNOS5420_CMU_CLKSTOP_PERIC_SYS_PWR_REG S5P_PMUREG(0x14AC) +#define EXYNOS5420_CMU_CLKSTOP_WCORE_SYS_PWR_REG S5P_PMUREG(0x14B0) +#define EXYNOS5420_CMU_SYSCLK_TOPPWR_SYS_PWR_REG S5P_PMUREG(0x14BC) +#define EXYNOS5420_CMU_SYSCLK_DISP1_SYS_PWR_REG S5P_PMUREG(0x14D0) +#define EXYNOS5420_CMU_SYSCLK_MAU_SYS_PWR_REG S5P_PMUREG(0x14D4) +#define EXYNOS5420_CMU_SYSCLK_G2D_SYS_PWR_REG S5P_PMUREG(0x14D8) +#define EXYNOS5420_CMU_SYSCLK_MSC_SYS_PWR_REG S5P_PMUREG(0x14DC) +#define EXYNOS5420_CMU_SYSCLK_FSYS_SYS_PWR_REG S5P_PMUREG(0x14E0) +#define EXYNOS5420_CMU_SYSCLK_FSYS2_SYS_PWR_REG S5P_PMUREG(0x14E4) +#define EXYNOS5420_CMU_SYSCLK_PSGEN_SYS_PWR_REG S5P_PMUREG(0x14E8) +#define EXYNOS5420_CMU_SYSCLK_PERIC_SYS_PWR_REG S5P_PMUREG(0x14EC) +#define EXYNOS5420_CMU_SYSCLK_WCORE_SYS_PWR_REG S5P_PMUREG(0x14F0) +#define EXYNOS5420_CMU_SYSCLK_SYSMEM_TOPPWR_SYS_PWR_REG S5P_PMUREG(0x14F4) +#define EXYNOS5420_CMU_RESET_FSYS2_SYS_PWR_REG S5P_PMUREG(0x1570) +#define EXYNOS5420_CMU_RESET_PSGEN_SYS_PWR_REG S5P_PMUREG(0x1574) +#define EXYNOS5420_CMU_RESET_PERIC_SYS_PWR_REG S5P_PMUREG(0x1578) +#define EXYNOS5420_CMU_RESET_WCORE_SYS_PWR_REG S5P_PMUREG(0x157C) +#define EXYNOS5420_CMU_RESET_DISP1_SYS_PWR_REG S5P_PMUREG(0x1590) +#define EXYNOS5420_CMU_RESET_MAU_SYS_PWR_REG S5P_PMUREG(0x1594) +#define EXYNOS5420_CMU_RESET_G2D_SYS_PWR_REG S5P_PMUREG(0x1598) +#define EXYNOS5420_CMU_RESET_MSC_SYS_PWR_REG S5P_PMUREG(0x159C) +#define EXYNOS5420_CMU_RESET_FSYS_SYS_PWR_REG S5P_PMUREG(0x15A0) +#define EXYNOS5420_ARM_COMMON_STATUS S5P_PMUREG(0x2504) +#define EXYNOS5420_ARM_COMMON_OPTION S5P_PMUREG(0x2508) +#define EXYNOS5420_KFC_COMMON_STATUS S5P_PMUREG(0x2584) +#define EXYNOS5420_KFC_COMMON_OPTION S5P_PMUREG(0x2588) +#define EXYNOS5420_ARM_L2_OPTION S5P_PMUREG(0x2608) +#define EXYNOS5420_KFC_L2_OPTION S5P_PMUREG(0x2688) +#define EXYNOS5420_LOGIC_RESET_DURATION3 S5P_PMUREG(0x2D1C) + +#define EXYNOS5_XXTI_DURATION3 S5P_PMUREG(0x343C) + +/* For EXYNOS_CENTRAL_SEQ_OPTION */ +#define EXYNOS5420_ARM_USE_STANDBY_WFI0 (1 << 4) +#define EXYNOS5420_ARM_USE_STANDBY_WFI1 (1 << 5) +#define EXYNOS5420_ARM_USE_STANDBY_WFI2 (1 << 6) +#define EXYNOS5420_ARM_USE_STANDBY_WFI3 (1 << 7) +#define EXYNOS5420_KFC_USE_STANDBY_WFI0 (1 << 8) +#define EXYNOS5420_KFC_USE_STANDBY_WFI1 (1 << 9) +#define EXYNOS5420_KFC_USE_STANDBY_WFI2 (1 << 10) +#define EXYNOS5420_KFC_USE_STANDBY_WFI3 (1 << 11) +#define EXYNOS5420_ARM_USE_STANDBY_WFE0 (1 << 16) +#define EXYNOS5420_ARM_USE_STANDBY_WFE1 (1 << 17) +#define EXYNOS5420_ARM_USE_STANDBY_WFE2 (1 << 18) +#define EXYNOS5420_ARM_USE_STANDBY_WFE3 (1 << 19) +#define EXYNOS5420_KFC_USE_STANDBY_WFE0 (1 << 20) +#define EXYNOS5420_KFC_USE_STANDBY_WFE1 (1 << 21) +#define EXYNOS5420_KFC_USE_STANDBY_WFE2 (1 << 22) +#define EXYNOS5420_KFC_USE_STANDBY_WFE3 (1 << 23) + +#define EXYNOS5420_USE_STANDBY_WFI_ALL (EXYNOS5420_ARM_USE_STANDBY_WFI0 \ + | EXYNOS5420_ARM_USE_STANDBY_WFI1 \ + | EXYNOS5420_ARM_USE_STANDBY_WFI2 \ + | EXYNOS5420_ARM_USE_STANDBY_WFI3 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI0 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI1 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI2 \ + | EXYNOS5420_KFC_USE_STANDBY_WFI3) + +#define EXYNOS5420_ATB_KFC (1 << 13) +#define EXYNOS5420_ATB_ISP_ARM (1 << 19) + +#define DUR_WAIT_RESET 0xF +#define SPREAD_ENABLE 0xF +#define SPREAD_USE_STANDWFI 0xF +#define EXYNOS5420_SWRESET_KFC_SEL 0x3 + #endif /* __ASM_ARCH_REGS_PMU_H */ diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c index 97d6885..2dd21bc 100644 --- a/arch/arm/mach-exynos/pmu.c +++ b/arch/arm/mach-exynos/pmu.c @@ -14,6 +14,7 @@ #include <linux/bug.h> #include <mach/regs-clock.h> +#include <mach/regs-pmu.h> #include "common.h" @@ -337,6 +338,46 @@ static void __iomem *exynos5_list_diable_wfi_wfe[] = { EXYNOS5_ISP_ARM_OPTION, }; +void __iomem *exynos5420_list_disable_pmu_reg[] = { + EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG, + EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG, + EXYNOS5_CMU_CLKSTOP_MFC_SYS_PWR_REG, + EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_DISP1_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_MAU_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_G2D_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_MSC_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_FSYS_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_PSGEN_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_PERIC_SYS_PWR_REG, + EXYNOS5420_CMU_CLKSTOP_WCORE_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_MFC_SYS_PWR_REG, + EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_DISP1_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_MAU_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_G2D_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_MSC_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_FSYS_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_FSYS2_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_PSGEN_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_PERIC_SYS_PWR_REG, + EXYNOS5420_CMU_SYSCLK_WCORE_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_FSYS2_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_PSGEN_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_PERIC_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_WCORE_SYS_PWR_REG, + EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG, + EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG, + EXYNOS5_CMU_RESET_MFC_SYS_PWR_REG, + EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_DISP1_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_MAU_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_G2D_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_MSC_SYS_PWR_REG, + EXYNOS5420_CMU_RESET_FSYS_SYS_PWR_REG, +}; static void exynos5_init_pmu(void) { unsigned int i; @@ -391,6 +432,7 @@ void exynos_sys_powerdown_conf(enum sys_powerdown mode) static int __init exynos_pmu_init(void) { unsigned int value; + unsigned int i; exynos_pmu_config = exynos4210_pmu_config; @@ -415,6 +457,70 @@ static int __init exynos_pmu_init(void) exynos_pmu_config = exynos5250_pmu_config; pr_info("EXYNOS5250 PMU Initialize\n"); + } else if (soc_is_exynos5420()) { + /* + * Set the CMU_RESET, CMU_SYSCLK and CMU_CLKSTOP registers + * for local power blocks to Low initially as per Table 8-4: + * "System-Level Power-Down Configuration Registers". + */ + for (i = 0; i < ARRAY_SIZE(exynos5420_list_disable_pmu_reg); i++) + __raw_writel(0x0, exynos5420_list_disable_pmu_reg[i]); + + /* Time taken to stabilized XXTI clock */ + __raw_writel(0x005dc, EXYNOS5_XXTI_DURATION3); + + /* Enable USE_STANDBY_WFI for all CORE */ + __raw_writel(EXYNOS5420_USE_STANDBY_WFI_ALL, + S5P_CENTRAL_SEQ_OPTION); + + value = __raw_readl(EXYNOS5420_ARM_L2_OPTION); + value &= ~EXYNOS5_OPTION_USE_RETENTION; + __raw_writel(value, EXYNOS5420_ARM_L2_OPTION); + + value = __raw_readl(EXYNOS5420_KFC_L2_OPTION); + value &= ~EXYNOS5_OPTION_USE_RETENTION; + __raw_writel(value, EXYNOS5420_KFC_L2_OPTION); + + /* + * If L2_COMMON is turned off, clocks related to ATB async + * bridge are gated. Thus, when ISP power is gated, LPI + * may get stuck. + */ + value = __raw_readl(EXYNOS5420_LPI_MASK); + value |= EXYNOS5420_ATB_ISP_ARM; + __raw_writel(value, EXYNOS5420_LPI_MASK); + value = __raw_readl(EXYNOS5420_LPI_MASK1); + value |= EXYNOS5420_ATB_KFC; + __raw_writel(value, EXYNOS5420_LPI_MASK1); + + /* Prevent issue of new bus request from L2 memory */ + value = __raw_readl(EXYNOS5420_ARM_COMMON_OPTION); + value |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN; + value &= ~EXYNOS5_USE_SC_COUNTER; + value |= EXYNOS5_USE_SC_FEEDBACK; + __raw_writel(value, EXYNOS5420_ARM_COMMON_OPTION); + + value = __raw_readl(EXYNOS5420_KFC_COMMON_OPTION); + value |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN; + value &= ~EXYNOS5_USE_SC_COUNTER; + value |= EXYNOS5_USE_SC_FEEDBACK; + __raw_writel(value, EXYNOS5420_KFC_COMMON_OPTION); + + /* Increase stability of KFC Reset */ + __raw_writel(EXYNOS5420_SWRESET_KFC_SEL, S5P_PMU_SPARE3); + + /* + * This setting is to reduce suspend/resume time. + */ + __raw_writel(DUR_WAIT_RESET, EXYNOS5420_LOGIC_RESET_DURATION3); + + /* Serialized CPU wakeup of Eagle */ + __raw_writel(SPREAD_ENABLE, EXYNOS5420_ARM_INTR_SPREAD_ENABLE); + __raw_writel(SPREAD_USE_STANDWFI, + EXYNOS5420_ARM_INTR_SPREAD_USE_STANDBYWFI); + __raw_writel(0x1, EXYNOS5420_UP_SCHEDULER); + + pr_info("EXYNOS5420 PMU Initialized\n"); } else { pr_info("EXYNOS: PMU not supported\n"); } -- 1.7.9.5
next reply other threads:[~2013-12-11 11:58 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-12-11 11:59 Abhilash Kesavan [this message] 2013-12-11 11:59 ` [PATCH] ARM: EXYNOS5: Add PMU settings for exynos5420 Abhilash Kesavan
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