diff options
| author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2019-06-02 15:46:11 +0900 |
|---|---|---|
| committer | Yoshinori Sato <ysato@users.sourceforge.jp> | 2019-06-02 15:46:11 +0900 |
| commit | 860dbce3d8dd90cb9e909c58fa79808766243651 (patch) | |
| tree | f68920c82fa779ae37bbce08a58259e5c3934ab3 /arch/arm/mach-exynos/platsmp.c | |
| parent | 1b496469d0c020e09124e03e66a81421c21272a7 (diff) | |
| parent | 3ab4436f688c2d2f221793953cd05435ca84261c (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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)); |