Support for Mobile Athlon XP - M ?

[Felix Krull <kilmarnock@gmx.net>]

Hi!

I modified my Athlon XP (Barton core) to be a mobile XP - M by bridging 
some open bridges according to http://fab51.com/cpu/barton/athlon-e24.html .
I booted my old Win installation and checked the success with 
CrystalCPUID. x86info mentions the cpu to be PowerNow capable:

PowerNOW! Technology information
Available features:
         Temperature sensing diode present.
         Bus divisor control
         Voltage ID control

But unfortunatelly cpufreq does not seem to support my XP-M. I am not 
able to load the module powernow-k7 into the kernel. There is no entry 
for cpufreq under the /sys tree.

Is there a way to get cpufreq working with this upgraded cpu or will I 
have to downgrade my installation to win in order to slow down my cpu?

Greetings
Felix