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Date: Sat, 10 Feb 2001 22:48:55 +0100
From: Pavel Machek <pavel@suse.cz>
To: tridge@linuxcare.com, linux-kernel@vger.kernel.org
Cc: junichi_morita@ysv.yokogawa.co.jp, torvalds@transmeta.com
Subject: Re: setting cpu speed on crusoe
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Hi!

> Junichi Morita and I have worked out how to access the crusoe
> "longrun" settings on the crusoe based VAIO. This allows you to enable
> power saving mode and slow the cpu down. It should help battery life a
> lot.

There is no documentation? I thought transmeta is linux-friendly
company ;-).

								Pavel

> the following will enable power saving and set the cpu to the slowest
> speed:
> 
>   setpci -s 0:0.0 a8.b=11
> 
> and this will restore you to max speed:
> 
>   setpci -s 0:0.0 a8.b=0e
> 
> the bits are:
> 
> LRON bit0: long run "on" - I'm not really sure what this does

Did you try just asking linus?

> LRRV bit1-3: cpu speed
> LREN bit4: seems to enable variable speed 


-- 
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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