| // SPDX-License-Identifier: GPL-2.0 |
| // |
| // Copyright (c) 2011-2015 Samsung Electronics Co., Ltd. |
| // http://www.samsung.com/ |
| // |
| // EXYNOS5250 - CPU PMU (Power Management Unit) support |
| |
| #include <linux/soc/samsung/exynos-regs-pmu.h> |
| #include <linux/soc/samsung/exynos-pmu.h> |
| |
| #include "exynos-pmu.h" |
| |
| static const struct exynos_pmu_conf exynos5250_pmu_config[] = { |
| /* { .offset = offset, .val = { AFTR, LPA, SLEEP } */ |
| { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x2} }, |
| { EXYNOS5_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, |
| { EXYNOS5_DIS_IRQ_ARM_CORE0_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, |
| { EXYNOS5_ARM_CORE1_SYS_PWR_REG, { 0x0, 0x0, 0x2} }, |
| { EXYNOS5_DIS_IRQ_ARM_CORE1_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, |
| { EXYNOS5_DIS_IRQ_ARM_CORE1_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, |
| { EXYNOS5_FSYS_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_DIS_IRQ_FSYS_ARM_CENTRAL_SYS_PWR_REG, { 0x1, 0x1, 0x1} }, |
| { EXYNOS5_ISP_ARM_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_DIS_IRQ_ISP_ARM_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, |
| { EXYNOS5_DIS_IRQ_ISP_ARM_CENTRAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, |
| { EXYNOS5_ARM_COMMON_SYS_PWR_REG, { 0x0, 0x0, 0x2} }, |
| { EXYNOS5_ARM_L2_SYS_PWR_REG, { 0x3, 0x3, 0x3} }, |
| { EXYNOS_L2_OPTION(0), { 0x10, 0x10, 0x0 } }, |
| { EXYNOS5_CMU_ACLKSTOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_CMU_SCLKSTOP_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_CMU_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_CMU_ACLKSTOP_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_CMU_SCLKSTOP_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_CMU_RESET_SYSMEM_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_DRAM_FREQ_DOWN_SYS_PWR_REG, { 0x1, 0x1, 0x1} }, |
| { EXYNOS5_DDRPHY_DLLOFF_SYS_PWR_REG, { 0x1, 0x1, 0x1} }, |
| { EXYNOS5_DDRPHY_DLLLOCK_SYS_PWR_REG, { 0x1, 0x1, 0x1} }, |
| { EXYNOS5_APLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_MPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_VPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_EPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_BPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CPLL_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_MPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_BPLLUSER_SYSCLK_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_TOP_BUS_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_TOP_RETENTION_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_TOP_PWR_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, |
| { EXYNOS5_TOP_BUS_SYSMEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_TOP_RETENTION_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_TOP_PWR_SYSMEM_SYS_PWR_REG, { 0x3, 0x0, 0x3} }, |
| { EXYNOS5_LOGIC_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_OSCCLK_GATE_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_LOGIC_RESET_SYSMEM_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_OSCCLK_GATE_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_USBOTG_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_G2D_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_USBDRD_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_SDMMC_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_CSSYS_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_SECSS_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_ROTATOR_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_INTRAM_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_INTROM_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_JPEG_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_JPEG_MEM_OPTION, { 0x10, 0x10, 0x0} }, |
| { EXYNOS5_HSI_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_MCUIOP_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_SATA_MEM_SYS_PWR_REG, { 0x3, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_DRAM_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_GPIO_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_UART_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_MMCA_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_MMCB_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_EBIA_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_EBIB_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_SPI_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_RETENTION_GPIO_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_ISOLATION_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_PAD_ALV_SEL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_XUSBXTI_SYS_PWR_REG, { 0x1, 0x1, 0x1} }, |
| { EXYNOS5_XXTI_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_EXT_REGULATOR_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_GPIO_MODE_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_GPIO_MODE_SYSMEM_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_GPIO_MODE_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_TOP_ASB_RESET_SYS_PWR_REG, { 0x1, 0x1, 0x1} }, |
| { EXYNOS5_TOP_ASB_ISOLATION_SYS_PWR_REG, { 0x1, 0x0, 0x1} }, |
| { EXYNOS5_GSCL_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, |
| { EXYNOS5_ISP_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, |
| { EXYNOS5_MFC_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, |
| { EXYNOS5_G3D_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, |
| { EXYNOS5_DISP1_SYS_PWR_REG, { 0x7, 0x0, 0x0} }, |
| { EXYNOS5_MAU_SYS_PWR_REG, { 0x7, 0x7, 0x0} }, |
| { EXYNOS5_CMU_CLKSTOP_GSCL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_CLKSTOP_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_CLKSTOP_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_CLKSTOP_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_CLKSTOP_DISP1_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_CLKSTOP_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_CMU_SYSCLK_GSCL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_SYSCLK_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_SYSCLK_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_SYSCLK_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_SYSCLK_DISP1_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_SYSCLK_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { EXYNOS5_CMU_RESET_GSCL_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_RESET_ISP_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_RESET_MFC_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_RESET_G3D_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_RESET_DISP1_SYS_PWR_REG, { 0x1, 0x0, 0x0} }, |
| { EXYNOS5_CMU_RESET_MAU_SYS_PWR_REG, { 0x1, 0x1, 0x0} }, |
| { PMU_TABLE_END,}, |
| }; |
| |
| static unsigned int const exynos5_list_both_cnt_feed[] = { |
| EXYNOS5_ARM_CORE0_OPTION, |
| EXYNOS5_ARM_CORE1_OPTION, |
| EXYNOS5_ARM_COMMON_OPTION, |
| EXYNOS5_GSCL_OPTION, |
| EXYNOS5_ISP_OPTION, |
| EXYNOS5_MFC_OPTION, |
| EXYNOS5_G3D_OPTION, |
| EXYNOS5_DISP1_OPTION, |
| EXYNOS5_MAU_OPTION, |
| EXYNOS5_TOP_PWR_OPTION, |
| EXYNOS5_TOP_PWR_SYSMEM_OPTION, |
| }; |
| |
| static unsigned int const exynos5_list_disable_wfi_wfe[] = { |
| EXYNOS5_ARM_CORE1_OPTION, |
| EXYNOS5_FSYS_ARM_OPTION, |
| EXYNOS5_ISP_ARM_OPTION, |
| }; |
| |
| static void exynos5250_pmu_init(void) |
| { |
| unsigned int value; |
| /* |
| * When SYS_WDTRESET is set, watchdog timer reset request |
| * is ignored by power management unit. |
| */ |
| value = pmu_raw_readl(EXYNOS5_AUTO_WDTRESET_DISABLE); |
| value &= ~EXYNOS5_SYS_WDTRESET; |
| pmu_raw_writel(value, EXYNOS5_AUTO_WDTRESET_DISABLE); |
| |
| value = pmu_raw_readl(EXYNOS5_MASK_WDTRESET_REQUEST); |
| value &= ~EXYNOS5_SYS_WDTRESET; |
| pmu_raw_writel(value, EXYNOS5_MASK_WDTRESET_REQUEST); |
| } |
| |
| static void exynos5_powerdown_conf(enum sys_powerdown mode) |
| { |
| unsigned int i; |
| unsigned int tmp; |
| |
| /* |
| * Enable both SC_FEEDBACK and SC_COUNTER |
| */ |
| for (i = 0; i < ARRAY_SIZE(exynos5_list_both_cnt_feed); i++) { |
| tmp = pmu_raw_readl(exynos5_list_both_cnt_feed[i]); |
| tmp |= (EXYNOS5_USE_SC_FEEDBACK | |
| EXYNOS5_USE_SC_COUNTER); |
| pmu_raw_writel(tmp, exynos5_list_both_cnt_feed[i]); |
| } |
| |
| /* |
| * SKIP_DEACTIVATE_ACEACP_IN_PWDN_BITFIELD Enable |
| */ |
| tmp = pmu_raw_readl(EXYNOS5_ARM_COMMON_OPTION); |
| tmp |= EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN; |
| pmu_raw_writel(tmp, EXYNOS5_ARM_COMMON_OPTION); |
| |
| /* |
| * Disable WFI/WFE on XXX_OPTION |
| */ |
| for (i = 0; i < ARRAY_SIZE(exynos5_list_disable_wfi_wfe); i++) { |
| tmp = pmu_raw_readl(exynos5_list_disable_wfi_wfe[i]); |
| tmp &= ~(EXYNOS5_OPTION_USE_STANDBYWFE | |
| EXYNOS5_OPTION_USE_STANDBYWFI); |
| pmu_raw_writel(tmp, exynos5_list_disable_wfi_wfe[i]); |
| } |
| } |
| |
| const struct exynos_pmu_data exynos5250_pmu_data = { |
| .pmu_config = exynos5250_pmu_config, |
| .pmu_init = exynos5250_pmu_init, |
| .powerdown_conf = exynos5_powerdown_conf, |
| }; |