On Aug 25, 2011, at 7:19 AM, Laurentiu Tudor wrote:
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.
Can you be more specific about the case you're concerned about. I'm not =
sure we want to leave the FIT enabled if it was previously. Watchdog I =
could possibly see leaving alone.
quoted hunk ↗ jump to hunk
=20
Signed-off-by: Laurentiu Tudor <redacted>
---
arch/powerpc/kernel/time.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
=20
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);
=20
/* Enable decrementer interrupt */
- mtspr(SPRN_TCR, TCR_DIE);
+ mtspr(SPRN_TCR, mfspr(SPRN_TCR) | TCR_DIE);
#endif /* defined(CONFIG_BOOKE) || defined(CONFIG_40x) */
}
=20
--=20
1.7.1
=20
=20
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev