]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] ppc: Fix timekeeping with HZ=250 on some Mac models
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 5 Oct 2005 07:43:40 +0000 (17:43 +1000)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 5 Oct 2005 14:33:42 +0000 (07:33 -0700)
commit23cb8c297eb939b25e5a628dc9e8a71b17f1c44e
treec7dbcdef11fd251b39d0dcab80aaae6a3bcb9439
parent329d4dd72e5c3393a0c7aeebf3e62df77b196d71
[PATCH] ppc: Fix timekeeping with HZ=250 on some Mac models

Older Macs which uses the VIA chip timers to calibrate the timebase used
some code that wouldn't work if HZ wasn't divisible by 100...

This fixes it at least for 250.  Not totally perfect but should be
enough for now (so it at least works with the default value which is now
250).

There is still a potential issue with the core using CLOCK_TICK_RATE to
maintain xtime and CLOCK_TICK_RATE value on ppc32 is pure crap, but that
is a different problem, this patch at least brings us back to our
previous situation.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/ppc/platforms/pmac_time.c