From: Dave Jones <davej@redhat.com>
To: jorgen@greven.dk
Cc: cpufreq@lists.linux.org.uk
Subject: Re: Power mgmt / CPUFREQ on Via C7 (Esther)
Date: Tue, 2 Jan 2007 12:36:01 -0500 [thread overview]
Message-ID: <20070102173601.GD7656@redhat.com> (raw)
In-Reply-To: <5317.195.215.10.251.1167740225.squirrel@195.41.226.86>
On Tue, Jan 02, 2007 at 01:17:05PM +0100, jorgen@greven.dk wrote:
> Hi
>
> I have just bought a nice little sbc mainboard with a Via C7 cpu. It run
> Centos with stock kernel 2.6.19.1 that I downloaded and installed a few
> days ago.
> But cpufreq does not work.
>
> Can I in some way help with testing/debugging the cpufreq driver (centrino
> or longhaul?) for this cpu?
The C7 works fine with acpi-cpufreq if the correct BIOS tables are present.
Support *could* be added to speedstep-centrino to use hardcoded tables
for these CPUs for systems where the BIOSes lack them, but hasn't been
done yet.
Given speedstep-centrino is due to be obsoleted by acpi-cpufreq at some stage,
the feature of using hardcoded tables probably needs to be added to
acpi-cpufreq at some point too.
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2007-01-02 17:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-02 12:17 Power mgmt / CPUFREQ on Via C7 (Esther) jorgen
2007-01-02 17:36 ` Dave Jones [this message]
2007-01-02 18:18 ` Rafał Bilski
2007-01-02 23:19 ` Dave Jones
2007-01-03 23:10 ` Jorgen
2007-01-02 18:55 ` Len Brown
2007-01-04 12:37 ` Jorgen
-- strict thread matches above, loose matches on Subject: below --
2007-01-02 22:16 jorgen
2007-01-02 22:27 ` Dave Jones
2007-01-03 10:22 jorgen
2007-01-03 20:41 ` Len Brown
2007-01-04 10:06 jorgen
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