[PATCH u-boot 2/2] Makefile: Build working u-boot-dtb.bin target also for mpc85xx

[Simon Glass]

Hi Pali,

On Wed, 28 Dec 2022 at 14:06, Pali Rohár <pali at kernel.org> wrote:
>
> U-Boot build process currently always produces broken u-boot-dtb.bin binary
> for PowerPC mpc85xx architecture on boards which needs mpc85xx reset
> vector. For these boards this (intermediate) binary is not used as input
> for any other Makefile target on this architecture, so there is no real
> problem with it.
>
> But it is not a good idea to produce broken binaries during build phase. So
> try to improve it. Binary u-boot-dtb.bin should contains u-boot code with
> DTB blob. Such binary for those boards is build by binman. So change binman
> output file name from u-boot.bin to u-boot-dtb.bin and then let generic
> Makefile rule to generate final u-boot.bin from u-boot-dtb.bin. And finally
> disable generic u-boot-dtb.bin rule for mpc85xx.
>
> Signed-off-by: Pali Rohár <pali at kernel.org>
> ---
>  Makefile                              | 17 ++++++++---------
>  arch/powerpc/dts/socrates-u-boot.dtsi |  2 +-
>  arch/powerpc/dts/u-boot.dtsi          |  2 +-
>  3 files changed, 10 insertions(+), 11 deletions(-)

Can you instead use a new filename, like u-boot-powerpc.bin for this?

I'm not  fan of adding SoC-specific rules in the Makefile - in fact
one of the goals of binman is to drop these.

Regards,
Simon