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Es Divendres 10 Desembre 2004 01:54, en Dieter Jäger va escriure:
| >I am very interested. Please provide a clue to how you did.
| >Regards, Anders Breindahl.
|
| I did some changes in arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c:
| These are the changes I tried: They set a lowest frequency of 100Mhz and
| should change the core voltage to 0.716V. The 100MHz I found by trial
| and error, the 0.716V I took from the voltage definitions in the Intel
| Docu at ftp://download.intel.com/design/mobile/datashts/ . Icannot
| remember which document, but it is mentioned in the kernel source. The
| 0.7V did not work on my Laptop (AcerTM660, Centrino 1600).
|
| --- arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c 2004-06-16
| 07:19:13.000000000 +0200
| +++ /tmp/speedstep-centrino.c 2004-11-18 15:22:47.000000000 +0100
| @@ -171,6 +171,14 @@
| /* Intel Pentium M processor 1.60GHz (Banias) */
| static struct cpufreq_frequency_table banias_1600[] =
| {
| + /* OP( 100, 700), */
| + OP( 100, 716),
| + /* OP( 100, 732),
| + OP( 100, 748),
| + OP( 100, 764),
| + OP( 100, 796), */
| + OP( 200, 812),
| + OP( 400, 844),
| OP( 600, 956),
| OP( 800, 1036),
| OP(1000, 1164),
I've already patched the speedstep-centrino.c file (kernel 2.6.9-cko3), and
mine is a Pentium-M 1500, Acer TM292:
- -----
/* Intel Pentium M processor 1.50GHz (Banias) */
static struct cpufreq_frequency_table banias_1500[] =
{
/* OP( 100, 700), */
OP( 100, 716),
/* OP( 100, 732),
OP( 100, 748),
OP( 100, 764),
OP( 100, 796), */
OP( 200, 812),
OP( 400, 844),
OP( 600, 956),
OP( 800, 1116),
OP(1000, 1228),
OP(1200, 1356),
OP(1400, 1452),
OP(1500, 1484),
{ .frequency = CPUFREQ_TABLE_END }
};
- -----
Compiled, and boots fine, but I cannt see any change, minimum speed is still
600mhz at /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq 8-?
Any idea? Thanks ;)
- --
Joan Tur (aka Quini), Eivissa-Spain
Jabber: [EMAIL PROTECTED]
Yahoo & AIM: quini2k
www.ClubIbosim.org
Linux: usuari registrat 190.783
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