[U-Boot] [PATCH] mxs: mxsboot: Add support for SD card generation for i.MX23

[Otavio Salvador]

On Thu, Jan 24, 2013 at 3:56 PM, Marek Vasut <marex at denx.de> wrote:
> Dear Otavio Salvador,
>
>> The mxsboot now receives the SoC type as parameter to generate binary
>> compatible with the SoC. Currently the NAND support has not been add
>> for i.MX23 as it is not yet supported in U-Boot.
>
> Please fix the NAND support as well, then resubmit.

I won't work on NAND now; first I wish to fix the NAND driver support
to later work in boot support.

> The patch basically does dd if=u-boot.sb ... bs=512 seek=4 ; any kind of
> information can be stored in those first four blocks and the mx23 bootrom
> ignores it, so what's the gain of this?

Well, it works fine for users. A good gain in my opinion.

> I wonder, will MX28 bootrom ignore them as well? Then maybe we can get rid of
> all this SD-specific junk.

Did not test but MX28 expects a BCB data structure (as said in 12.11.2
- MX28RM) while MX23 does not. So I think MX28 won't work without the
BCB.

> Furthermore, I'd like to see all of this reworked as another plugin for mkimage.

Yes; it would be a good long term solution but I don't want to hold it
due any of above reasons. It works fine so improvements can be done
later.

Regards,

--
Otavio Salvador                             O.S. Systems
E-mail: otavio at ossystems.com.br  http://www.ossystems.com.br
Mobile: +55 53 9981-7854              http://projetos.ossystems.com.br