[PASEMI NEMO] Boot issue with the PowerPC updates 6.4-1

[Rob Herring]

On Wed, May 3, 2023 at 11:27 AM Christophe Leroy
<christophe.leroy at csgroup.eu> wrote:
>
> +Rob as he's the commit's Author.
>
> Le 03/05/2023 à 17:46, Christian Zigotzky a écrit :
> > On 02 May 2023 at 11:28 am, Michael Ellerman wrote:
> >> Christian Zigotzky <chzigotzky at xenosoft.de> writes:
> >>> Hello,
> >>>
> >>> Our PASEMI Nemo board [1] doesn't boot with the PowerPC updates 6.4-1
> >>> [2].
> >>>
> >>> The kernel hangs right after the booting Linux via __start() @
> >>> 0x0000000000000000 ...
> >>>
> >>> I was able to revert the PowerPC updates 6.4-1 [2] with the following
> >>> command: git revert 70cc1b5307e8ee3076fdf2ecbeb89eb973aa0ff7 -m 1
> >>>
> >>> After a re-compiling, the kernel boots without any problems without the
> >>> PowerPC updates 6.4-1 [2].
> >>>
> >>> Could you please explain me, what you have done in the boot area?
> >> There's a few possibilities, but nothing obvious.
> >>
> >> To begin with can you please test the following commits?
> >>
> >> 77e69ee7ce07
> >> e4ab08be5b49
> >> eeac8ede1755
> >>
> >> cheers
> > git revert e4ab08be5b4902e5b350b0e1e1a3c25eb21d76d4
> >
> > [master 0086e2cbbec0] Revert "powerpc/isa-bridge: Remove open coded
> > "ranges" parsing"
> >   1 file changed, 129 insertions(+), 37 deletions(-)
> >
> > After a recompiling it boots without any problems.
> >
> > e4ab08be5b49 -- powerpc/isa-bridge: Remove open coded "ranges" parsing
> > is the bad commit.

Could I get a DT file for this board?

In the meantime, just revert this commit. I don't think I'll be able
to fix it before I'm out on sabbatical.

Rob