[ltp] [PATCH] 2.6.8-rc3 dothan cpufreq support (t42 et al)

Michael Clark linux-thinkpad@linux-thinkpad.org
Sun, 08 Aug 2004 09:46:21 +0800


Hi All,

Just a note for those wanting cpufreq support for their dothan
powered laptop:

You can apply below 2 patches to 2.6.8-rc3. Tested and working
on a b0 (stepping 6) 1.8GHz Dothan 745.

http://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.8-rc3/2.6.8-rc3-mm1/broken-out/bk-cpufreq.patch
http://gort.metaparadigm.com/cpufreq/cpufreq-speedstep-dothan-3.patch

Currently only has table entries for b0 stepping (look in /proc/cpuinfo,
6,13,6 is a b0 stepping and 6,13,1 is an a1 stepping). If you have an
a1 stepping you'll need to add an entry to the model table in:

   arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c

Cheers,
~mc