From: Juergen Beisert <jbe@pengutronix.de>
To: barebox@lists.infradead.org
Subject: Re: about s3c2442
Date: Thu, 10 Jan 2013 11:00:53 +0100 [thread overview]
Message-ID: <201301101100.54062.jbe@pengutronix.de> (raw)
In-Reply-To: <1982990.BKj08KPbd8@yiqingliang-pc>
Hi Yi,
Yi Qingliang wrote:
> On Thursday, January 10, 2013 10:14:07 AM Juergen Beisert wrote:
> > Yi Qingliang wrote:
> > > On Thursday, January 10, 2013 09:36:36 AM Juergen Beisert wrote:
> > > > Yi Qingliang wrote:
> > > > > I'm using barebox (based on mini2440) on my s3c2442 board,
> > > > >
> > > > > 1. flash barebox into nand: can't start normally, but can see early
> > > > > output on serial.
> > > > > 2. load it in sdram: can start normally into shell, and then I use
> > > > > it to boot kernel (also in sdram, also based on mini2440).
> > > > > the kernel hang, no output.
> > > > >
> > > > > after dig into it, I found something: add "mem=64M" into the kernel
> > > > > paramer, then the kernel can start.
> > > > >
> > > > > BUT:
> > > > > the barebox doesn't pass that paramert to kernel for mini2440,
> > > > > why the mini2440 kernel can start normally?
> > > > >
> > > > > how does the kernel on 2440 get the sdram size?
> > > >
> > > > There is no autodetection possible. Take a look into
> > > > the "arch/arm/boards/friendlyarm-mini2440/lowlevel_init.S": This is
> > > > the
>
> I found it,
> but:
> md 0x48000028
> 48000028: 000000b2 (represents is 128)
> it looks like the lowlevel_init is not executed, what's the problem.
Is the symbol "CONFIG_MACH_DO_LOWLEVEL_INIT" enabled in your config?
Regards,
Juergen
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | http://www.pengutronix.de/ |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2013-01-10 10:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-10 15:07 Yi Qingliang
2013-01-10 8:36 ` Juergen Beisert
2013-01-10 9:08 ` Yi Qingliang
2013-01-10 9:14 ` Juergen Beisert
2013-01-10 17:45 ` Yi Qingliang
2013-01-10 10:00 ` Juergen Beisert [this message]
2013-01-10 19:14 ` Yi Qingliang
2013-01-10 11:20 ` Juergen Beisert
2013-01-10 17:54 ` Yi Qingliang
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=201301101100.54062.jbe@pengutronix.de \
--to=jbe@pengutronix.de \
--cc=barebox@lists.infradead.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox