diff options
Diffstat (limited to 'arch/arm/mach-tegra/common.c')
| -rw-r--r-- | arch/arm/mach-tegra/common.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index d6bee1d29bdf..a1bc52ddce0d 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -77,8 +77,13 @@ void __init tegra_init_cache(void) void __init tegra_common_init(void) { #ifdef CONFIG_CPU_V7 - /* enable dynamic clock gating */ unsigned int reg; +#ifdef CONFIG_ARM_ERRATA_742230 + asm volatile ("mrc p15, 0, %0, c15, c0, 1" : "=r" (reg) : : "cc"); + reg |= 1<<4; + asm volatile ("mcr p15, 0, %0, c15, c0, 1" : : "r" (reg) : "cc"); +#endif + /* enable dynamic clock gating */ asm volatile ("mrc p15, 0, %0, c15, c0, 0" : "=r" (reg) : : "cc"); reg |= 1; asm volatile ("mcr p15, 0, %0, c15, c0, 0" : : "r" (reg) : "cc"); |