[U-Boot] environment expectations of config_distro_bootcmd.h

[Otavio Salvador]

On Mon, Sep 29, 2014 at 2:17 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 09/28/2014 08:30 AM, Ian Campbell wrote:
>>
>> Is there any documentation as to what environment variables a platform
>> must provide if it uses config_distro_bootcmd.h. ${scriptaddr} seems
>> clear but what about e.g. kernel_addr_r and friends? I suppose the use
>> of the pxe commands has some implicit dependencies (pxe_addr_r?)
>>
>> Along the same lines is there any documentation regarding which
>> variables a boot.scr which expects to be called via this mechanism can
>> rely on. e.g. devtype/devnum/bootpart/prefix etc. Also foo_addr_r again
>> I suppose?
>>
>> There is some info in the README but it says things like "these
>> variables don't have to be defined for all boards" and worse "some
>> boards use these variables for other purposes." ;-)
>
>
> Dennis did write the following when he first sent the patch to create
> include/config_distro_bootcmd.h:
>
> http://patchwork.ozlabs.org/patch/332412/
> [U-Boot,1/6] add README.distro file
>
> However, I only cleaned up and resent patch 2 in that series:
>
> http://patchwork.ozlabs.org/patch/332413/
> [U-Boot,2/6] add header with a generic set of boot commands defined.
>
> ... so the README isn't in place at present.

Could you or Dennis update it to current tree and send a patch adding
it? I think it is a must have so we easy the migration/adoption of it
on more and more boards.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
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