On Wed, 24 Jan 2024 11:38:38 +0100, Matthias Schiffer wrote:

MMU_FTR_USE_HIGH_BATS is set for G2_LE cores and derivatives like e300cX,
but the high BATs need to be enabled in HID2 to work. Add register
definitions and add the needed setup to __setup_cpu_603.

This fixes boot on CPUs like the MPC5200B with STRICT_KERNEL_RWX enabled
on systems where the flag has not been set by the bootloader already.

[...]

Applied to powerpc/fixes.

[1/1] powerpc/6xx: set High BAT Enable flag on G2_LE cores
      https://git.kernel.org/powerpc/c/a038a3ff8c6582404834852c043dadc73a5b68b4

cheers