[U-Boot] disabling mmc in spl when booting using bootrom

[Ziyuan Xu]

On 2016年08月11日 19:39, Sandy Patterson wrote:
>
> On Thu, Aug 11, 2016 at 7:35 AM, Ziyuan Xu <xzy.xu at rock-chips.com 
> <mailto:xzy.xu at rock-chips.com>> wrote:
>
>
>
>     On 2016年08月11日 19:31, Sandy Patterson wrote:
>
>         Simon,
>
>         I am trying to format a patch to disable MMC in the SPL if
>         booting main u-boot using BOOTROM, therefore the SPL MMC isn't
>         needed.
>
>         Is the best solution to wrap every header file (rock2.h
>         firefly-rk3288.h, etc) with ifdefs on the BACK_TO_BROM define?
>         Or would it be better to move the SPL MMC define into
>         rk3288-common.h and just have chromebook_jerry undef it like
>         it does the SPL GPIO code.
>
>         With that change, enabling BOOT_TO_BROM shrinks the spl from
>         32K to 23K.
>
>     Note that, firefly-rk3288 use OF_PLATDATA, we will use
>     u-boot-spl-no-dtb.bin instead of u-boot-spl-dtb.bin, and the size
>     of u-boot-spl-no-dtb.bin is almost 23K.
>
>
> The patch would apply if OF_PLATDATA is used too (Although I haven't 
> tested it). It would just shrink the SPL more right because you don't 
> need the MMC driver. I wasn't planning to change any of the defconfigs.
Okay, I'll have no objection to your doing it.
>
>
>     @Simon, I think we will update doc/README.rockchip if you insist
>     on OF_PLATDATA for firefly-rk3288. we no longer use
>     u-boot-spl-dtb.bin.:-)
>
>
>         Sandy
>
>
>
>