[U-Boot] [PATCH 5/5] pico-imx7d: Add bl33 config

[Fabio Estevam]

On Wed, Mar 27, 2019 at 12:04 PM Jun Nie <jun.nie at linaro.org> wrote:

> The DCD file is only used by BL33 defconfig and is not coupled with
> any other code.

Yes, correct. We don't want to add the DCD file for a single defconfig.

> Or you are suggesting to use ATF -> OPTEE -> SPL -> u-boot flow? SPL
> is unnecessary
> in this case. Could you elaborate more on maintenance impact? Thanks!

Once we add the DCD file in U-Boot then we need to maintain it forever.

Also, if someone wants to use Optee with the 1GB variant another DCD
file will be needed.

This simply does not scale.

pico-mx7d is capable of booting via SPL just fine. It boots 512MB and
1GB versions of the board, so we really don't need DCD for your
specific defconfig.

Again, just use SPL for your usecase.