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

[Pali Rohár]

On Friday 30 December 2022 10:41:47 Tom Rini wrote:
> On Fri, Dec 30, 2022 at 04:24:43PM +0100, Pali Rohár wrote:
> > On Friday 30 December 2022 10:21:04 Tom Rini wrote:
> > > > In this case it would be better to build u-boot-dts.bin only by binman
> > > > (for all platforms) instead of cat-ing rules in Makefile.
> > > 
> > > This would also be an easier path forward perhaps for making sure that
> > > the dtb is always 8 byte aligned?
> > 
> > Well, no. With DTB the problem is that it is not put to the correct
> > offset as can be specified in linker script. So moving this code from
> > Makefile to binman also moves this problem to another location.
> > 8 byte alignment is just subset of the "correct offset" problem.
> 
> Right, the high level answer is binman is intended to be the tool to
> assemble binaries, and has to deal with "make sure binary X is at offset
> Y, which also has a linker symbol for run-time references".

Ok, if this tool has access to ELF/linker symbols (or will have in
future in case it does not have yet) then this problem could be solved
here.