[U-Boot] env_mmc: support overriding mmc dev from board code

[Peng Fan]

On Mon, Jan 25, 2016 at 04:28:55PM -0500, Tom Rini wrote:
>On Wed, Jan 20, 2016 at 03:43:37PM +0100, Clemens Gruber wrote:
>
>> This enables boards to choose where to/from the environment should be
>> saved/loaded. They can then for example support using the same device
>> (dynamically) from which the bootloader was launched to load and save
>> env data and do not have to define CONFIG_SYS_MMC_ENV_DEV statically.
>> 
>> In my use case, the environment needs to be on the same device I
>> booted from. It can be the eMMC or an optional SD card.
>> I therefore would override mmc_get_env_dev in the board code, read the
>> CPU registers to determine where we booted from and return the
>> corresponding device index.
>> 
>> Cc: Tom Rini <trini at konsulko.com>
>> Cc: Stephen Warren <swarren at nvidia.com>
>> Cc: Tim Harvey <tharvey at gateworks.com>
>> Cc: Simon Glass <sjg at chromium.org>
>> Cc: Hans de Goede <hdegoede at redhat.com>
>> 
>> Signed-off-by: Clemens Gruber <clemens.gruber at pqgruber.com>
>> Reviewed-by: Stephen Warren <swarren at nvidia.com>
>> Reviewed-by: Tom Rini <trini at konsulko.com>
>
>Applied to u-boot/master, thanks!

Oh. I missed this patch. I have a more complete patch, still in patch work.
https://patchwork.ozlabs.org/patch/558056/.

Regards,
Peng.

>
>-- 
>Tom



>_______________________________________________
>U-Boot mailing list
>U-Boot at lists.denx.de
>http://lists.denx.de/mailman/listinfo/u-boot