summaryrefslogtreecommitdiff
path: root/drivers/soc/samsung/exynos5250-pmu.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/soc/samsung/exynos5250-pmu.c')
-rw-r--r--drivers/soc/samsung/exynos5250-pmu.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/drivers/soc/samsung/exynos5250-pmu.c b/drivers/soc/samsung/exynos5250-pmu.c
new file mode 100644
index 000000000..3fac42561
--- /dev/null
+++ b/drivers/soc/samsung/exynos5250-pmu.c
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2011-2015 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * EXYNOS5250 - 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/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} },
+ { 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 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,
+};