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[POWERPC] Fix timekeeping on PowerPC 601

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Recent changes to the timekeeping code broke support for the PowerPC 601
processor which doesn't have the usual timebase facility but a slightly
different thing called (yuck) the RTC.

This fixes it, boot tested on an old 601 based PowerMac 7200.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
2007-09-19 14:21:56 +10:00
committed by Paul Mackerras
parent 7b5acbaac3
commit c27da33969
2 changed files with 10 additions and 3 deletions
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5
include/asm-powerpc/time.h
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@@ -149,6 +149,11 @@ static inline u64 get_tb(void)
}
#endif /* !CONFIG_PPC64 */
static inline u64 get_tb_or_rtc(void)
{
return __USE_RTC() ? get_rtc() : get_tb();
}
static inline void set_tb(unsigned int upper, unsigned int lower)
{
mtspr(SPRN_TBWL, 0);