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Support for Mobile Athlon XP - M ?

DISCUSSION Felix Krull 2 participants 2 messages Jun 19, 2005 – Jun 20, 2005

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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

#1 lore raw
Quoted 13 lines · Felix Krull

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

Quoted 7 lines

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?

powernow-k7 use some BIOS table(s) in order to retrieve supported frequencies. Your BIOS do not generate them. Thus powernow-k7 will fail.

In order to get it working, you have to add such information directly to the driver. There should be some patches around this mailing-list to this end.

Cheers,

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Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.