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>
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@ -742,10 +742,6 @@ void __init generic_calibrate_decr(void)
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#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
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/* Set the time base to zero */
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mtspr(SPRN_TBWL, 0);
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mtspr(SPRN_TBWU, 0);
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/* Clear any pending timer interrupts */
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mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
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