Clearing the other TCR bits might break code that sets them (e.g. to setup
the watchdog or fixed interval timer) before start_cpu_decrementer() gets
called.
Signed-off-by: Laurentiu Tudor <laurentiu.tu...@freescale.com>
---
arch/powerpc/kernel/time.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 03b29a6..e8b5cdc 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -721,7 +721,7 @@ void start_cpu_decrementer(void)
mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
/* Enable decrementer interrupt */
- mtspr(SPRN_TCR, TCR_DIE);
+ mtspr(SPRN_TCR, mfspr(SPRN_TCR) | TCR_DIE);
#endif /* defined(CONFIG_BOOKE) || defined(CONFIG_40x) */
}
--
1.7.1
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