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
Date: Sat, 10 Feb 2001 22:48:55 +0100 [thread overview]
Message-ID: <20010210224855.D7877@bug.ucw.cz> (raw)
In-Reply-To: <20010203223939.40F82659858@au2.samba.org>
In-Reply-To: <20010203223939.40F82659858@au2.samba.org>; from Andrew Tridgell on Sun, Feb 04, 2001 at 09:39:39AM +1100
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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next prev parent reply other threads:[~2001-02-11 10:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-03 22:39 setting cpu speed on crusoe Andrew Tridgell
2001-02-10 21:48 ` Pavel Machek [this message]
2001-02-13 17:33 ` Linus Torvalds
2001-02-14 11:44 ` Daniel Quinlan
2001-02-14 14:31 ` Ookhoi
2001-03-19 12:49 ` is it possible to upgrade crusoe code morphing software with linux? Ookhoi
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