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Date: Fri, 08 Oct 2004 16:02:46 -0600
From: Chris Friesen <cfriesen@nortelnetworks.com>
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To: Arrigo Benedetti <arrigo@bologna.vision.caltech.edu>
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Cc: linuxppc-dev@ozlabs.org
Subject: Re: Update frequency of Time Base reg?
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Arrigo Benedetti wrote:
> Dear all,
> 
> I'm looking for information about the update frequency of the Time Base 
> register
> for the latest dual G5 Powermac and Xserve models.
> By the way, what is the best way to find this kind of information?

33.3 MHz, I think.

The most portable way to find it is to calibrate it against gettimeofday().  For 
our product kernels, I've exported it via /proc.

Chris