Booting mx25 based device from SD and NOR

Sascha Hauer s.hauer at pengutronix.de
Tue May 22 14:42:40 EDT 2012


Hi Roberto,

On Tue, May 22, 2012 at 02:11:46PM +0200, Roberto Nibali wrote:
> Hi
> 
> I have been trying to boot a customized mx25 based device using barebox and
> I seem to be missing a few basic pointers, I believe, since it does not
> work. I have attached my config and put my current patch-set online:
> http://pastebin.com/KUVAwWRk. It's based on git commit 'dadcf5bd8f715'.
> 
> I don't know if the way of adding the boatloader to the SD card for later
> installing it onto NOR flash is the correct one. I currently issue a:
> 
> sudo dd if=barebox.bin of=/dev/sdc bs=512 skip=2 seek=2 && sync
>

You have configured barebox for external boot mode. This is not suitable
for SD cards, you have to use internal bootmode instead. This requires
that you provide a dtd header, see for example the babbage board for how
to do this.

Sascha


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