On 5/30/26 4:06 PM, Tom Rini wrote:
The revert is wrong as that breaks other things , like use of DRAM above 4
GiB boundary, which is exactly why this change was implemented. If RPi has
limitations, then those limitations should be imposed on RPi, not globally,
so add the LMB reservations on RPi.
Isn't the case you describe still a theoretical and not used in tree
case?
No, this is used by the Sparrow Hawk board, which depends on it.
And note that Ilias' patches to relocate to the top of memory also
fail on Pi. So there's something to be debugged here and worked out
before we add this seemingly enhanced behavior. Hence, the need to
revert it for now until it can be fixed.
We still have two RCs to go, so I don't see the need for a hasty revert
that breaks other systems, esp. if Ilias is looking into the RPi
situation now, and I already offered a way to fix the RPi in the short
term without breaking the other systems.
