diff options
Diffstat (limited to 'arch/arm/mach-exynos4/hotplug.c')
| -rw-r--r-- | arch/arm/mach-exynos4/hotplug.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm/mach-exynos4/hotplug.c b/arch/arm/mach-exynos4/hotplug.c index 2b5909e2ccd..7490789784c 100644 --- a/arch/arm/mach-exynos4/hotplug.c +++ b/arch/arm/mach-exynos4/hotplug.c @@ -13,9 +13,12 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/smp.h> +#include <linux/io.h> #include <asm/cacheflush.h> +#include <mach/regs-pmu.h> + extern volatile int pen_release; static inline void cpu_enter_lowpower(void) @@ -58,12 +61,12 @@ static inline void cpu_leave_lowpower(void) static inline void platform_do_lowpower(unsigned int cpu, int *spurious) { - /* - * there is no power-control hardware on this platform, so all - * we can do is put the core into WFI; this is safe as the calling - * code will have already disabled interrupts - */ for (;;) { + + /* make cpu1 to be turned off at next WFI command */ + if (cpu == 1) + __raw_writel(0, S5P_ARM_CORE1_CONFIGURATION); + /* * here's the WFI */ |