From: Sylvain Munaut <tnt@246tNt.com>
To: Domen Puncer <domen.puncer@telargo.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: [RFC] lite5200b low power mode
Date: Fri, 22 Dec 2006 12:10:31 +0100 [thread overview]
Message-ID: <458BBD27.1030207@246tNt.com> (raw)
In-Reply-To: <20061222105404.GC2481@moe.telargo.com>
Domen Puncer wrote:
> Hi!
>
> I have managed to implement low power mode... well, to some
> degree, at least.
>
> Short description:
> patch u-boot, it's the return from wakeup code. pretty clean.
> address is saved at 0x0 (0xc000_0000)
> patch linux with PM-platform_bus-and-late_suspend-early_resume.patch
> didn't investigate too much, but it seems to broke mine.
> patch linux with lite5200b_low_power.patch
> ugly, with debugging, hacks and whatever
>
> Boot Linux and 'echo mem > /sys/power/state'.
> It won't work on PCI, possibly other devices, PSC0 and FEC seem
> to work ok for me.
>
> It seems to work reliably (checksums match, so ram was in self-refresh)
> when called from boot scripts, but not so when from console prompt.
>
>
> If someone's interested (or maybe wants to play with this during
> holiday? ;-) ), more info follow:
>
>
Well, I'll have a look, that looks interesting ;)
Sylvain
next prev parent reply other threads:[~2006-12-22 11:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-22 10:54 [RFC] lite5200b low power mode Domen Puncer
2006-12-22 11:10 ` Sylvain Munaut [this message]
2007-01-23 9:33 ` [RFC PATCHES] lite5200b low power mode works Domen Puncer
2007-02-19 7:21 ` Domen Puncer
2007-02-19 10:15 ` Sylvain Munaut
2007-02-19 11:00 ` Domen Puncer
2007-02-19 11:01 ` Sylvain Munaut
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=458BBD27.1030207@246tNt.com \
--to=tnt@246tnt.com \
--cc=domen.puncer@telargo.com \
--cc=linuxppc-embedded@ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.