diff options
Diffstat (limited to 'arch/arm/mach-exynos/platsmp.c')
| -rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index abcac6164233..0cbbae8bf1f8 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -214,13 +214,20 @@ static inline void __iomem *cpu_boot_reg(int cpu) */ void exynos_core_restart(u32 core_id) { + unsigned int timeout = 16; u32 val; if (!of_machine_is_compatible("samsung,exynos3250")) return; - while (!pmu_raw_readl(S5P_PMU_SPARE2)) + while (timeout && !pmu_raw_readl(S5P_PMU_SPARE2)) { + timeout--; udelay(10); + } + if (timeout == 0) { + pr_err("cpu core %u restart failed\n", core_id); + return; + } udelay(10); val = pmu_raw_readl(EXYNOS_ARM_CORE_STATUS(core_id)); |