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author | Arnd Bergmann <arnd@arndb.de> | 2014-07-26 19:54:21 +0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2014-07-26 19:54:21 +0400 |
commit | 944483d0330bb497549977aa9649be6b7d0ede37 (patch) | |
tree | 545d9c5498e0dbe7697b36ad50379a815b48ec1b /arch/arm/mach-exynos/platsmp.c | |
parent | 03eea7cda20128f97fa281650ada69fe19194d56 (diff) | |
parent | fd9f5edf6e7e8a666f3672fd809f3289c2da388a (diff) | |
download | linux-944483d0330bb497549977aa9649be6b7d0ede37.tar.xz |
Merge branch 'next/fixes-non-critical' into next/soc
This resolves a nontrivial conflict against a bug fix
in another branch.
Conflicts:
arch/arm/mach-exynos/pm.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-exynos/platsmp.c')
-rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 7c829989859c..2207598ce049 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -33,6 +33,72 @@ extern void exynos4_secondary_startup(void); +/** + * exynos_core_power_down : power down the specified cpu + * @cpu : the cpu to power down + * + * Power down the specified cpu. The sequence must be finished by a + * call to cpu_do_idle() + * + */ +void exynos_cpu_power_down(int cpu) +{ + pmu_raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu)); +} + +/** + * exynos_cpu_power_up : power up the specified cpu + * @cpu : the cpu to power up + * + * Power up the specified cpu + */ +void exynos_cpu_power_up(int cpu) +{ + pmu_raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_ARM_CORE_CONFIGURATION(cpu)); +} + +/** + * exynos_cpu_power_state : returns the power state of the cpu + * @cpu : the cpu to retrieve the power state from + * + */ +int exynos_cpu_power_state(int cpu) +{ + return (pmu_raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) & + S5P_CORE_LOCAL_PWR_EN); +} + +/** + * exynos_cluster_power_down : power down the specified cluster + * @cluster : the cluster to power down + */ +void exynos_cluster_power_down(int cluster) +{ + pmu_raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster)); +} + +/** + * exynos_cluster_power_up : power up the specified cluster + * @cluster : the cluster to power up + */ +void exynos_cluster_power_up(int cluster) +{ + pmu_raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_COMMON_CONFIGURATION(cluster)); +} + +/** + * exynos_cluster_power_state : returns the power state of the cluster + * @cluster : the cluster to retrieve the power state from + * + */ +int exynos_cluster_power_state(int cluster) +{ + return (pmu_raw_readl(EXYNOS_COMMON_STATUS(cluster)) & + S5P_CORE_LOCAL_PWR_EN); +} + static inline void __iomem *cpu_boot_reg_base(void) { if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1) |