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authorKumar Gala <galak@kernel.crashing.org>2008-06-27 08:03:13 -0500
committerKumar Gala <galak@kernel.crashing.org>2008-07-14 07:55:42 -0500
commitddb107e98b58ee280e99317cfd6efd16112678f2 (patch)
tree4dbaf938a92ba1d9b28a3fb5cc8d1ea5653072df /arch/powerpc
parent98384c6cdd1fd593f399b6f879bae2cae70aad48 (diff)
powerpc/booke: don't reinitialize time base
For some reason long ago I decided that we should zero out the time base when we calibrate the decrementer. The problem is that this can be harmful in SMP systems where the firmware has already synchronized the time bases on the various cores. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/time.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c73fc33aa81..eb938808ddf 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -742,10 +742,6 @@ void __init generic_calibrate_decr(void)
}
#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
- /* Set the time base to zero */
- mtspr(SPRN_TBWL, 0);
- mtspr(SPRN_TBWU, 0);
-
/* Clear any pending timer interrupts */
mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);