S5P_PMU_SPARE3
pmu_raw_writel(EXYNOS5420_SWRESET_KFC_SEL, S5P_PMU_SPARE3);
pm_state.pmu_spare3 = pmu_raw_readl(S5P_PMU_SPARE3);
pmu_raw_writel(pm_state.pmu_spare3, S5P_PMU_SPARE3);