[PATCH v2 2/4] Implement generic time of day clocksource for powerpc machines.

Paul Mackerras paulus at samba.org
Fri Sep 21 14:59:31 EST 2007

Daniel Walker writes:

> I don't think the RTC frequency isn't the same as the timebase? Seems
> like the RTC only case about seconds at the lowest level. If that's the
> case then the jiffies clock might be better to use .. The other thing I
> wonder is if the __USE_RTC boards might have lower level clocks that
> could be used instead ..

It's OK, the RTC isn't what you think it is, it's a pair of
CPU-internal registers which count seconds and nanoseconds.  On
processors with the RTC, tb_ticks_per_sec is initialized to
1000000000.  Trust me, this code is OK. :)


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