[PATCH 0/4] arm: mach-k3: Add DM firmware memory fixup

[Paresh Bhagat]

This patch series addresses DM firmware reserved memory fixup for AM62a
and AM62d:

1. AM62D is missing OF_SYSTEM_SETUP config, required for FDT fixups to
   be applied before passing dtb to kernel.

2. DM firmware reserved memory region is insufficient to accommodate the
   binary. Analysis of the DM firmware binary using objdump reveals that
   the resource_table section and .stack section occupies memory from
   0x9c900000 to 0x9e608000. So increase the reserved region size from
   0xf00000 to 0x1f00000 via fdt fixup. Add new configs in Kconfig.

3. The existing fdt_fixup_reserved_memory() used a delete/recreate
   approach which corrupted phandle references to DM node, causing DM
   initialization failures. Fixed it by updating nodes in-place using
   fdt_setprop() to preserve original phandles.

This patch will need the dts to be updated for both AM62a and AM62d i.e.
rename wkup_r5fss0_core0_memory_region node from "memory at 9c900000" to
"dm at 9c900000".

Boot logs
https://gist.github.com/paresh-bhagat/e64523fe5134a02754fdbdaff864fcd1
https://gist.github.com/paresh-bhagat/b578d602010db09d62d2be3b2709fc5a

Paresh Bhagat (4):
  arm: mach-k3: Fix phandle corruption in fdt fixup
  arm: mach-k3: am62ax: Enable OF_SYSTEM_SETUP for AM62D2
  arm: mack-k3: Kconfig: Add DM firmware reserved memory configs
  arm: mach-k3: Add DM reserved memory fixup

 arch/arm/mach-k3/Kconfig        | 16 ++++++++++++++++
 arch/arm/mach-k3/am62ax/Kconfig |  1 +
 arch/arm/mach-k3/common_fdt.c   | 34 +++++++++++++++++++++++----------
 3 files changed, 41 insertions(+), 10 deletions(-)

-- 
2.34.1