diff options
Diffstat (limited to 'arch/arm/mach-exynos/suspend.c')
| -rw-r--r-- | arch/arm/mach-exynos/suspend.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index 700d8d91ea93..bb8e3985acdb 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -63,6 +63,7 @@ struct exynos_pm_data { struct exynos_pm_state { int cpu_state; unsigned int pmu_spare3; + void __iomem *sysram_base; }; static const struct exynos_pm_data *pm_data __ro_after_init; @@ -261,7 +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); @@ -333,7 +334,7 @@ static void exynos5420_pm_prepare(void) * needs to restore it back in case, the primary cpu fails to * suspend for any reason. */ - pm_state.cpu_state = readl_relaxed(sysram_base_addr + + pm_state.cpu_state = readl_relaxed(pm_state.sysram_base + EXYNOS5420_CPU_STATE); exynos_pm_enter_sleep_mode(); @@ -453,7 +454,7 @@ static void exynos5420_pm_resume(void) /* Restore the sysram cpu state register */ writel_relaxed(pm_state.cpu_state, - sysram_base_addr + EXYNOS5420_CPU_STATE); + pm_state.sysram_base + EXYNOS5420_CPU_STATE); pmu_raw_writel(EXYNOS5420_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION); @@ -658,4 +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; } |