diff options
Diffstat (limited to 'arch/arm/mach-exynos/suspend.c')
-rw-r--r-- | arch/arm/mach-exynos/suspend.c | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index c2ed997fedef..bb8e3985acdb 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -30,8 +30,6 @@ #include <asm/smp_scu.h> #include <asm/suspend.h> -#include <mach/map.h> - #include <plat/pm-common.h> #include "common.h" @@ -61,10 +59,15 @@ struct exynos_pm_data { int (*cpu_suspend)(unsigned long); }; -static const struct exynos_pm_data *pm_data __ro_after_init; +/* Used only on Exynos542x/5800 */ +struct exynos_pm_state { + int cpu_state; + unsigned int pmu_spare3; + void __iomem *sysram_base; +}; -static int exynos5420_cpu_state; -static unsigned int exynos_pmu_spare3; +static const struct exynos_pm_data *pm_data __ro_after_init; +static struct exynos_pm_state pm_state; /* * GIC wake-up support @@ -205,6 +208,7 @@ static int __init exynos_pmu_irq_init(struct device_node *node, NULL); if (!domain) { iounmap(pmu_base_addr); + pmu_base_addr = NULL; return -ENOMEM; } @@ -258,7 +262,7 @@ static int exynos5420_cpu_suspend(unsigned long arg) unsigned int cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); unsigned int cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); - writel_relaxed(0x0, sysram_base_addr + EXYNOS5420_CPU_STATE); + writel_relaxed(0x0, pm_state.sysram_base + EXYNOS5420_CPU_STATE); if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM)) { mcpm_set_entry_vector(cpu, cluster, exynos_cpu_resume); @@ -274,7 +278,7 @@ static int exynos5420_cpu_suspend(unsigned long arg) static void exynos_pm_set_wakeup_mask(void) { /* Set wake-up mask registers */ - pmu_raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK); + pmu_raw_writel(exynos_get_eint_wake_mask(), EXYNOS_EINT_WAKEUP_MASK); pmu_raw_writel(exynos_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK); } @@ -322,7 +326,7 @@ static void exynos5420_pm_prepare(void) /* Set wake-up mask registers */ exynos_pm_set_wakeup_mask(); - exynos_pmu_spare3 = pmu_raw_readl(S5P_PMU_SPARE3); + pm_state.pmu_spare3 = pmu_raw_readl(S5P_PMU_SPARE3); /* * The cpu state needs to be saved and restored so that the * secondary CPUs will enter low power start. Though the U-Boot @@ -330,8 +334,8 @@ static void exynos5420_pm_prepare(void) * needs to restore it back in case, the primary cpu fails to * suspend for any reason. */ - exynos5420_cpu_state = readl_relaxed(sysram_base_addr + - EXYNOS5420_CPU_STATE); + pm_state.cpu_state = readl_relaxed(pm_state.sysram_base + + EXYNOS5420_CPU_STATE); exynos_pm_enter_sleep_mode(); @@ -401,7 +405,7 @@ static void exynos_pm_resume(void) goto early_wakeup; if (cpuid == ARM_CPU_PART_CORTEX_A9) - scu_enable(S5P_VA_SCU); + exynos_scu_enable(); if (call_firmware_op(resume) == -ENOSYS && cpuid == ARM_CPU_PART_CORTEX_A9) @@ -449,8 +453,8 @@ static void exynos5420_pm_resume(void) EXYNOS5_ARM_CORE0_SYS_PWR_REG); /* Restore the sysram cpu state register */ - writel_relaxed(exynos5420_cpu_state, - sysram_base_addr + EXYNOS5420_CPU_STATE); + writel_relaxed(pm_state.cpu_state, + pm_state.sysram_base + EXYNOS5420_CPU_STATE); pmu_raw_writel(EXYNOS5420_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION); @@ -458,7 +462,7 @@ static void exynos5420_pm_resume(void) if (exynos_pm_central_resume()) goto early_wakeup; - pmu_raw_writel(exynos_pmu_spare3, S5P_PMU_SPARE3); + pmu_raw_writel(pm_state.pmu_spare3, S5P_PMU_SPARE3); early_wakeup: @@ -655,4 +659,13 @@ void __init exynos_pm_init(void) register_syscore_ops(&exynos_pm_syscore_ops); suspend_set_ops(&exynos_suspend_ops); + + /* + * Applicable as of now only to Exynos542x. If booted under secure + * firmware, the non-secure region of sysram should be used. + */ + if (exynos_secure_firmware_available()) + pm_state.sysram_base = sysram_ns_base_addr; + else + pm_state.sysram_base = sysram_base_addr; } |