From: Gerald Britton <gbritton@alum.mit.edu>
To: Dave Jones <davej@suse.de>, Alan Cox <alan@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: Linux 2.4.19pre9-ac3
Date: Fri, 31 May 2002 21:51:44 -0400 [thread overview]
Message-ID: <20020531215144.A4358@light-brigade.mit.edu> (raw)
In-Reply-To: <200205302322.g4UNMne06371@devserv.devel.redhat.com> <20020531014935.D9282@suse.de>
> > Linux 2.4.19pre9-ac3
> > o Cpufreq updates (Dominik Brodowski, Dave Jones0
> > | Now includes some reverse engineered speedstep support
>
> Two points worth mentioning in regard to this.
> 1. The first type of speedstep (found in systems with BX chipsets)
> isn't supported. Only the later type found in systems with ICH
> chipsets will work with this driver..
> 2. Dominik did 99.9% of the Spudstop work, so all offers of free moneyi
> should be directed to him.
This is on an IBM Thinkpad T23:
cpufreq: Intel(R) SpeedStep(TM) support $Revision: 1.7.2.2 $
cpufreq: chipset 0x3 - processor 0x2
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0
cpufreq: writing 0x1 to pmbase 0x1000 + 0x50
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x1
cpufreq: change to 0 MHz succeded
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x1
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x1
cpufreq: writing 0x0 to pmbase 0x1000 + 0x50
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0
cpufreq: change to 598 MHz succeded
cpufreq: read at pmbase 0x1000 + 0x50 returned 0x0
cpufreq: currently at high speed setting - 598 MHz
CPU clock: 598.500 MHz (731.500-598.500 MHz)
The low speed setting looks ok, but the high one is obviously wrong.
It's a 1.13Ghz CPU, /proc/cpuinfo lists it as this:
vendor_id : GenuineIntel
cpu family : 6
model : 11
model name : Intel(R) Pentium(R) III Mobile CPU 1133MHz
stepping : 1
cpu MHz : 1132.406
cache size : 512 KB
The chipset in this machine is an Intel i830 chipset. Let me know if
there's anything else useful I could do to provide further info.
-- Gerald
next prev parent reply other threads:[~2002-06-01 1:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-30 23:22 Alan Cox
2002-05-30 23:49 ` Dave Jones
2002-05-31 8:31 ` Marcus Sundberg
[not found] ` <21223.1022847561@www56.gmx.net>
2002-05-31 12:26 ` Dominik Brodowski
2002-06-01 1:51 ` Gerald Britton [this message]
[not found] ` <10830.1022935054@www2.gmx.net>
2002-06-01 13:06 ` [PATCH] " Dominik Brodowski
2002-05-31 0:13 ` Robinson Maureira Castillo
[not found] <200205310040.g4V0eZb25262@devserv.devel.redhat.com>
2002-05-31 0:57 ` Robinson Maureira Castillo
2002-05-31 13:37 Faisal Malallah
2002-05-31 15:47 ` Robert Love
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