[Buildroot] [PATCH v2 2/3] boot/uboot: copy ATF bl31 binary to uboot package dir

[Fabio Estevam]

Hi Heiko,

On Fri, Sep 10, 2021 at 1:03 PM Heiko Thiery <heiko.thiery at gmail.com> wrote:

> I don't think that's quite right. With the old mainline uboot you
> could also build the flash.bin, but that was optional. The make rule
> 'flash.bin' was not part of 'make all'. But with the change to binman
> the files are now necessary, because 'make all' now also builds the
> flash.bin.

The need for bl31.bin present in the build directory was required even
prior to the binman conversion.

For example, let's take the U-Boot 2021.01 readme for imx8mm evk:
https://source.denx.de/u-boot/u-boot/-/blob/v2021.01/doc/board/freescale/imx8mm_evk.rst