[PATCH] imx8mq_evk: Update the required ATF branch

[Fabio Estevam]

Hi Peng,

On Wed, Dec 11, 2019 at 11:00 AM Peng Fan <peng.fan at nxp.com> wrote:

> We might need to switch upstream ATF, or stick to NXP vendor release one?

I don't have much background about the ATF upstream status on i.MX8 to
provide an opinion.

Does upstream ATF allow booting a U-Boot and mainline kernel?

This patch is the minimum change needed for booting mainline U-Boot.
If someone thinks that ATF upstream is a good choice, then feel free
to send a patch updating the README.

> The version should already be in yocto release. I just use the new one when I
> upstream code.

Please keep in mind that not everyone uses Yocto.

How do we know what is the correct firmware version we need to use?