diff options
Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 5fc29ad..58a41cf5 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -489,6 +489,9 @@ void timer_interrupt(struct pt_regs * regs) struct clock_event_device *evt = &__get_cpu_var(decrementers); u64 now; +#ifdef CONFIG_FSL_ERRATUM_A_006184 + mtspr(SPRN_TSR, TSR_ENW); +#endif /* Ensure a positive value is written to the decrementer, or else * some CPUs will continue to take decrementer exceptions. */ @@ -639,7 +642,15 @@ void start_cpu_decrementer(void) mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS); /* Enable decrementer interrupt */ +#ifdef CONFIG_FSL_ERRATUM_A_006184 +#define WDTP(x) ((((x)&0x3)<<30)|(((x)&0x3c)<<15)) + { + u32 period = WDTP(CONFIG_FSL_ERRATUM_A_006184_PERIOD); + mtspr(SPRN_TCR, TCR_DIE | TCR_WIE | period); + } +#else mtspr(SPRN_TCR, TCR_DIE); +#endif #endif /* defined(CONFIG_BOOKE) || defined(CONFIG_40x) */ } |