linux/arch/arm/mach-exynos/pmu.c

529 lines
21 KiB
C
Raw Normal View History

/*
* Copyright (c) 2011-2014 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* EXYNOS - CPU PMU(Power Management Unit) support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/io.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include "exynos-pmu.h"
#include "regs-pmu.h"
#define PMU_TABLE_END (-1U)
struct exynos_pmu_conf {
unsigned int offset;
unsigned int val[NUM_SYS_POWERDOWN];
};
struct exynos_pmu_data {
const struct exynos_pmu_conf *pmu_config;
const struct exynos_pmu_conf *pmu_config_extra;
void (*pmu_init)(void);
void (*powerdown_conf)(enum sys_powerdown);
};
struct exynos_pmu_context {
struct device *dev;
const struct exynos_pmu_data *pmu_data;
};
static void __iomem *pmu_base_addr;
static struct exynos_pmu_context *pmu_context;
static inline void pmu_raw_writel(u32 val, u32 offset)
{
writel_relaxed(val, pmu_base_addr + offset);
}
static inline u32 pmu_raw_readl(u32 offset)
{
return readl_relaxed(pmu_base_addr + offset);
}
static const struct exynos_pmu_conf exynos4210_pmu_config[] = {
/* { .offset = offset, .val = { AFTR, LPA, SLEEP } */
{ S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } },
{ S5P_DIS_IRQ_CENTRAL0, { 0x0, 0x0, 0x0 } },
{ S5P_ARM_CORE1_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_DIS_IRQ_CORE1, { 0x0, 0x0, 0x0 } },
{ S5P_DIS_IRQ_CENTRAL1, { 0x0, 0x0, 0x0 } },
{ S5P_ARM_COMMON_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_L2_0_LOWPWR, { 0x2, 0x2, 0x3 } },
{ S5P_L2_1_LOWPWR, { 0x2, 0x2, 0x3 } },
{ S5P_CMU_ACLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_SCLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_APLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_MPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_VPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_EPLL_SYSCLK_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_GPS_ALIVE_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_GPSALIVE_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_CAM_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_TV_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_MFC_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_G3D_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_LCD0_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_LCD1_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_CLKSTOP_GPS_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_CAM_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_TV_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_MFC_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_G3D_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_LCD0_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_LCD1_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_GPS_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_TOP_BUS_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_TOP_RETENTION_LOWPWR, { 0x1, 0x0, 0x1 } },
{ S5P_TOP_PWR_LOWPWR, { 0x3, 0x0, 0x3 } },
{ S5P_LOGIC_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_ONENAND_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_MODIMIF_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_G2D_ACP_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_USBOTG_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_HSMMC_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_CSSYS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_SECSS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_PCIE_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_SATA_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_DRAM_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_PAD_RETENTION_GPIO_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_UART_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_MMCA_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_MMCB_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_EBIA_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_EBIB_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_ISOLATION_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_ALV_SEL_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_XUSBXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_XXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_EXT_REGULATOR_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_GPIO_MODE_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_GPIO_MODE_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CAM_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_TV_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_MFC_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_G3D_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_LCD0_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_LCD1_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_MAUDIO_LOWPWR, { 0x7, 0x7, 0x0 } },
{ S5P_GPS_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_GPS_ALIVE_LOWPWR, { 0x7, 0x0, 0x0 } },
{ PMU_TABLE_END,},
};
static const struct exynos_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 } },
{ S5P_ARM_CORE1_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_DIS_IRQ_CORE1, { 0x0, 0x0, 0x0 } },
{ S5P_DIS_IRQ_CENTRAL1, { 0x0, 0x0, 0x0 } },
{ S5P_ISP_ARM_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_DIS_IRQ_ISP_ARM_LOCAL_LOWPWR, { 0x0, 0x0, 0x0 } },
{ S5P_DIS_IRQ_ISP_ARM_CENTRAL_LOWPWR, { 0x0, 0x0, 0x0 } },
{ S5P_ARM_COMMON_LOWPWR, { 0x0, 0x0, 0x2 } },
{ S5P_L2_0_LOWPWR, { 0x0, 0x0, 0x3 } },
/* XXX_OPTION register should be set other field */
{ S5P_ARM_L2_0_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_L2_1_LOWPWR, { 0x0, 0x0, 0x3 } },
{ S5P_ARM_L2_1_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_CMU_ACLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_SCLKSTOP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_DRAM_FREQ_DOWN_LOWPWR, { 0x1, 0x1, 0x1 } },
{ S5P_DDRPHY_DLLOFF_LOWPWR, { 0x1, 0x1, 0x1 } },
{ S5P_LPDDR_PHY_DLL_LOCK_LOWPWR, { 0x1, 0x1, 0x1 } },
{ S5P_CMU_ACLKSTOP_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_SCLKSTOP_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_COREBLK_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_APLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_MPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_VPLL_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_EPLL_SYSCLK_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_MPLLUSER_SYSCLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_GPS_ALIVE_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_GPSALIVE_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_CAM_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_TV_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_MFC_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_G3D_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_LCD0_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_ISP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_MAUDIO_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_CLKSTOP_GPS_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_CAM_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_TV_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_MFC_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_G3D_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_LCD0_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_ISP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_RESET_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_CMU_RESET_GPS_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_TOP_BUS_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_TOP_RETENTION_LOWPWR, { 0x1, 0x0, 0x1 } },
{ S5P_TOP_PWR_LOWPWR, { 0x3, 0x0, 0x3 } },
{ S5P_TOP_BUS_COREBLK_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_TOP_RETENTION_COREBLK_LOWPWR, { 0x1, 0x0, 0x1 } },
{ S5P_TOP_PWR_COREBLK_LOWPWR, { 0x3, 0x0, 0x3 } },
{ S5P_LOGIC_RESET_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_OSCCLK_GATE_LOWPWR, { 0x1, 0x0, 0x1 } },
{ S5P_LOGIC_RESET_COREBLK_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_OSCCLK_GATE_COREBLK_LOWPWR, { 0x1, 0x0, 0x1 } },
{ S5P_ONENAND_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_ONENAND_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_HSI_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_HSI_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_G2D_ACP_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_G2D_ACP_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_USBOTG_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_USBOTG_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_HSMMC_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_HSMMC_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_CSSYS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_CSSYS_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_SECSS_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_SECSS_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_ROTATOR_MEM_LOWPWR, { 0x3, 0x0, 0x0 } },
{ S5P_ROTATOR_MEM_OPTION, { 0x10, 0x10, 0x0 } },
{ S5P_PAD_RETENTION_DRAM_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_PAD_RETENTION_GPIO_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_UART_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_MMCA_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_MMCB_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_EBIA_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_EBIB_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_GPIO_COREBLK_LOWPWR,{ 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_ISOLATION_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_ISOLATION_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_PAD_RETENTION_ALV_SEL_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_XUSBXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_XXTI_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_EXT_REGULATOR_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_GPIO_MODE_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_GPIO_MODE_COREBLK_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_GPIO_MODE_MAUDIO_LOWPWR, { 0x1, 0x1, 0x0 } },
{ S5P_TOP_ASB_RESET_LOWPWR, { 0x1, 0x1, 0x1 } },
{ S5P_TOP_ASB_ISOLATION_LOWPWR, { 0x1, 0x0, 0x1 } },
{ S5P_CAM_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_TV_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_MFC_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_G3D_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_LCD0_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_ISP_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_MAUDIO_LOWPWR, { 0x7, 0x7, 0x0 } },
{ S5P_GPS_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_GPS_ALIVE_LOWPWR, { 0x7, 0x0, 0x0 } },
{ S5P_CMU_SYSCLK_ISP_LOWPWR, { 0x1, 0x0, 0x0 } },
{ S5P_CMU_SYSCLK_GPS_LOWPWR, { 0x1, 0x0, 0x0 } },
{ PMU_TABLE_END,},
};
static const struct exynos_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,},
};
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} },
{ EXYNOS5_ARM_L2_OPTION, { 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 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]);
}
}
void exynos_sys_powerdown_conf(enum sys_powerdown mode)
{
unsigned int i;
const struct exynos_pmu_data *pmu_data = pmu_context->pmu_data;
if (pmu_data->powerdown_conf)
pmu_data->powerdown_conf(mode);
if (pmu_data->pmu_config) {
for (i = 0; (pmu_data->pmu_config[i].offset != PMU_TABLE_END); i++)
pmu_raw_writel(pmu_data->pmu_config[i].val[mode],
pmu_data->pmu_config[i].offset);
}
if (pmu_data->pmu_config_extra) {
for (i = 0; pmu_data->pmu_config_extra[i].offset != PMU_TABLE_END; i++)
pmu_raw_writel(pmu_data->pmu_config_extra[i].val[mode],
pmu_data->pmu_config_extra[i].offset);
}
}
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 const struct exynos_pmu_data exynos4210_pmu_data = {
.pmu_config = exynos4210_pmu_config,
};
static const struct exynos_pmu_data exynos4212_pmu_data = {
.pmu_config = exynos4x12_pmu_config,
};
static const struct exynos_pmu_data exynos4412_pmu_data = {
.pmu_config = exynos4x12_pmu_config,
.pmu_config_extra = exynos4412_pmu_config,
};
static const struct exynos_pmu_data exynos5250_pmu_data = {
.pmu_config = exynos5250_pmu_config,
.pmu_init = exynos5250_pmu_init,
.powerdown_conf = exynos5_powerdown_conf,
};
/*
* PMU platform driver and devicetree bindings.
*/
static const struct of_device_id exynos_pmu_of_device_ids[] = {
{
.compatible = "samsung,exynos4210-pmu",
.data = &exynos4210_pmu_data,
}, {
.compatible = "samsung,exynos4212-pmu",
.data = &exynos4212_pmu_data,
}, {
.compatible = "samsung,exynos4412-pmu",
.data = &exynos4412_pmu_data,
}, {
.compatible = "samsung,exynos5250-pmu",
.data = &exynos5250_pmu_data,
},
{ /*sentinel*/ },
};
static int exynos_pmu_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct device *dev = &pdev->dev;
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pmu_base_addr = devm_ioremap_resource(dev, res);
if (IS_ERR(pmu_base_addr))
return PTR_ERR(pmu_base_addr);
pmu_context = devm_kzalloc(&pdev->dev,
sizeof(struct exynos_pmu_context),
GFP_KERNEL);
if (!pmu_context) {
dev_err(dev, "Cannot allocate memory.\n");
return -ENOMEM;
}
pmu_context->dev = dev;
match = of_match_node(exynos_pmu_of_device_ids, dev->of_node);
pmu_context->pmu_data = match->data;
if (pmu_context->pmu_data->pmu_init)
pmu_context->pmu_data->pmu_init();
platform_set_drvdata(pdev, pmu_context);
dev_dbg(dev, "Exynos PMU Driver probe done\n");
return 0;
}
static struct platform_driver exynos_pmu_driver = {
.driver = {
.name = "exynos-pmu",
.owner = THIS_MODULE,
.of_match_table = exynos_pmu_of_device_ids,
},
.probe = exynos_pmu_probe,
};
static int __init exynos_pmu_init(void)
{
return platform_driver_register(&exynos_pmu_driver);
}
postcore_initcall(exynos_pmu_init);