On Fri, 05 May 2023 12:18:17 -0500, Rob Herring wrote:
> Commit e4ab08be5b49 ("powerpc/isa-bridge: Remove open coded "ranges"
> parsing") broke PASemi Nemo board booting. The issue is the ISA I/O
> range was not getting mapped as the logic to handle no "ranges" was
> inverted. If phb_io_base_phys is non-zero, then the ISA range defaults
> to the first 64K of the PCI I/O space. phb_io_base_phys should only be 0
> when looking for a non-PCI ISA region.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc: isa-bridge: Fix ISA mmapping when "ranges" is not present
https://git.kernel.org/powerpc/c/79de36042eecb684e0f748d17ba52f365fde0d65
cheers
