Re: cpufreq on Toshiba Portege 4000?

[Andrey Borzenkov]

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On Monday 01 August 2005 22:06, Dave Jones wrote:
> On Mon, Aug 01, 2005 at 09:56:17PM +0400, Andrey Borzenkov wrote:
>  > Toshiba documentation claims it supports speedstep technology. It has
>  > Ali chipset and PIII CPU:
>  >
>  > {pts/1}% lspci
>  > 00:00.0 Host bridge: ALi Corporation M1644/M1644T Northbridge+Trident
>  > (rev 01) 00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller
>  > 00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
>  > 00:04.0 IDE interface: ALi Corporation M5229 IDE (rev c3)
>  > ...
>  >
>  > Any cnahce to use cpufreq (or compatible) technique here?
>
> Nope, The speedstep-smi driver only works on Intel chipsets.
>

well, acpi-cpufreq appears to work here. The only drawback is that BIOS 
supports only 2 states (750 and 500MHz) while Toshiba HCI interface can 
switch between 8 levels; unfortunately I have no idea what frequencies they 
have.

Is there any utility to measure actual CPU frequency? If I can determine real 
speed, I could try extend DSDT to support other levels too.

TIA

- -andrey
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