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

[Christian Zigotzky]

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.

Thanks