CVS: cvs.openbsd.org: src

[Marc Balmer <mbalmer_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>]

CVSROOT:	/cvs
Module name:	src
Changes by:	mbalmer_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	2007/11/24 08:24:54

Modified files:
	sys/arch/macppc/macppc: clock.c 

Log message:
Some macppc models (e.g. the 1.5 GHz G4 MacMini) have a large clock drift
which is due to the timecounter running at a different frequency than what
OpenFirmware tells us.  On such machines, measure the actual timecounter
frequency (triggered by a table of affected models) and use this measured
value instead.  This brings down the drift to values where adjtime()/adjfreq()
triggered by ntpd(8) can tame the clock.

feedback many, ok miod, kettenis