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List:       linux-arm-kernel
Subject:    Re: Arm linux software suspend
From:       Matthias Welwarsky <mwelwarsky () web ! de>
Date:       2005-08-06 8:10:29
Message-ID: 200508061010.30461.mwelwarsky () web ! de
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On Friday, 5. August 2005 23:25, Nicolas Pitre wrote:
> On Fri, 5 Aug 2005, Geoff Levand wrote:
> > Nicolas Pitre wrote:
> > > You are sure that's what he wants?
> >
> > Yes, the replier cut the part where he specifically states 'software
> > suspend'
> >
> |I am trying to figure out a powersaving scheme for an embedded device.
> |And was wondering if we can do a complete hibernate on arm-linux.
>
> I really doubt any _embedded_ device with an _ARM_ processor will ever
> have a real hard disk.

The Archos PMA430 has a 30GB hard drive and runs on an OMAP. Whether you'd 
call it an _embedded_ device I don't know, but if not, then a Zaurus isn't 
one, either ;)

[...]

> Otherwise what you really want here is suspend to ram.

I  second that. It depends however how much power drain you can stand. I'd say 
that a 32MB SDRAM draws around 3-4 mA in self-refresh, and you have the rest 
of the board, plus the CPU, if it does not allow to be completely powered 
down.

regards,
	matthias

>
>
> Nicolas
>
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