From: Sascha Hauer <s.hauer@pengutronix.de>
To: George Stefan <stefan.george87@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: mx53 loco boot procedure
Date: Tue, 21 Feb 2012 22:01:27 +0100 [thread overview]
Message-ID: <20120221210127.GG3852@pengutronix.de> (raw)
In-Reply-To: <CAACwSTKshGv05PfJWJkFTKzhof2q+hjupdh=U3VH2Fbdc-6VBQ@mail.gmail.com>
On Tue, Feb 21, 2012 at 08:38:24PM +0200, George Stefan wrote:
> Hello guys,
> After dd if=barebox.bin of=/dev/sdb bs=512 and dd if=arch/arm/boot/uImage
> of=/dev/sdb bs=512 seek=768 i am getting
>
> Board: Freescale i.MX53 LOCO registered netconsole as cs1 eth@eth0: got MAC
> address from EEPROM: 00:04:9F:01:B4:5B mci@mci0: No partition table found
> Cannot reset the SD/MMC interface Malloc space: 0x7df00000 -> 0x7fefffff
> (size 32 MB) Stack space : 0x7def8000 -> 0x7df00000 (size 32 kB) envfs:
> wrong magic on /dev/env0 no valid environment found on /dev/env0. Using
> default environment running /env/bin/init... Hit any key to stop autoboot:
> 1 phy0: Link is up - 100/Full T DHCP client bound to address
> 128.224.168.167 TFTP from server 128.224.168.11 ('zImage-loco' -> '/image')
>
> Wasn't the board suppose to boot from sd card by default?
>
> Also, i have another question. I want to replace
>
> /* call start_barebox with its absolute address */
> r = (unsigned int)&start_barebox;
> __asm__ __volatile__("mov pc, %0" : : "r"(r));
>
> &start_barebox with the actual address of the uImage practically to skip
> all the barebox part and
> boot only with the minimal CPU and memory setup. What do you think?
You can't jump directly into uImages. It would work with a zImage, but
how do you get your zImage from the sd card without the help of the
bootloader? Well, you could link barebox and a zImage together, but then
you'll realize that the internal ROM code is quite slow when reading
data from SD cards (unless there are ways to tweak this, I don't know)
What are your goals trying this?
Sascha
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2012-02-21 21:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-21 18:38 mx53 loco boot procedure George Stefan
2012-02-21 20:02 ` Eric Bénard
2012-02-21 21:01 ` Sascha Hauer [this message]
2012-02-22 9:22 ` George Stefan
2012-02-23 20:13 ` Sascha Hauer
2012-02-23 20:40 ` George Stefan
2012-02-23 20:59 ` Eric Bénard
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=20120221210127.GG3852@pengutronix.de \
--to=s.hauer@pengutronix.de \
--cc=barebox@lists.infradead.org \
--cc=stefan.george87@gmail.com \
/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.