ARM: EXYNOS: Add support AFTR mode on EXYNOS4210

This patch adds support AFTR(ARM OFF TOP RUNNING) mode in
cpuidle driver. L2 cache keeps their data in this mode.
This patch ports the code to the latest interfaces to
save/restore CPU state inclusive of CPU PM notifiers, l2
resume and cpu_suspend/resume.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@linaro.org>
[kgene.kim@samsung.com: fixed for non-smp as per Tushar's pointing out]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/include/mach/pmu.h b/arch/arm/mach-exynos/include/mach/pmu.h
index 632dd5630138..e76b7faba66b 100644
--- a/arch/arm/mach-exynos/include/mach/pmu.h
+++ b/arch/arm/mach-exynos/include/mach/pmu.h
@@ -22,11 +22,13 @@ enum sys_powerdown {
         NUM_SYS_POWERDOWN,
 };
 
+extern unsigned long l2x0_regs_phys;
 struct exynos4_pmu_conf {
         void __iomem *reg;
         unsigned int val[NUM_SYS_POWERDOWN];
 };
 
 extern void exynos4_sys_powerdown_conf(enum sys_powerdown mode);
+extern void s3c_cpu_resume(void);
 
 #endif /* __ASM_ARCH_PMU_H */