[PATCH v4 0/4] arm64: dts: ti: k3-am62a7-sk: Split r5f memory region

[Markus Schneider-Pargmann (TI)]

Hi,

Split the firmware memory region in more specific parts so it is better
described where which information is stored. Specifically the LPM metadata
region is important as bootloader software like U-Boot has to know where
that data is to be able to read that data and resume from RAM.

The bindings are already applied. The remaining patches use the new
layout for the platforms that are capable to support IO+DDR. For IO+DDR
the new layout is necessary as it defines the location of the LPM
metadata.

Additionally the two important devicetree nodes for resuming from IO+DDR
have the bootph-pre-ram flag added as this data needs to be read before
the RAM is in use.

The changes in this series were suggested as part of the IO+DDR u-boot series:
  https://lore.kernel.org/r/814c211f-a9eb-4311-bb84-165b1a69755f@ti.com

Best
Markus

Signed-off-by: Markus Schneider-Pargmann (TI) <msp at baylibre.com>
---
Changes in v4:
- Rebased to v7.1-rc1
- Dropped all already applied patches that are the bindings and the
  initial introduction of memory-region-names
- Link to v3: https://lore.kernel.org/r/20260318-topic-am62a-ioddr-dt-v6-19-v3-0-c41473cb23c3@baylibre.com

Changes in v3:
- Squash the enforcement of the memory-region-names requirement in the
  patch adding the memory-region-names, as suggested.
- Link to v2: https://lore.kernel.org/r/20260312-topic-am62a-ioddr-dt-v6-19-v2-0-37cb7ceec658@baylibre.com

Changes in v2:
- Make memory-region-names required if memory-region is present
- Fixup memory-region and memory-region-names conditions. Require either
  2 or 6 regions for memory-region and memory-region-names
- Reword and restructure the binding documentation for memory-region and
  memory-region-names
- Add memory-region-names to all uses of memory-region
- Link to v1: https://lore.kernel.org/r/20260303-topic-am62a-ioddr-dt-v6-19-v1-0-12fe72bb40d2@baylibre.com

---
Markus Schneider-Pargmann (TI) (4):
      arm64: dts: ti: k3-am62a7-sk: Split r5f memory region
      arm64: dts: ti: k3-am62p5-sk: Split r5f memory region
      arm64: dts: ti: k3-am62a7-sk: Add r5f nodes to pre-ram bootphase
      arm64: dts: ti: k3-am62p5-sk: Add r5f nodes to pre-ram bootphase

 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 42 +++++++++++++++++++++++++++++++--
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 42 +++++++++++++++++++++++++++++++--
 2 files changed, 80 insertions(+), 4 deletions(-)
---
base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731
change-id: 20260210-topic-am62a-ioddr-dt-v6-19-0da7712081d7

Best regards,
-- 
Markus Schneider-Pargmann (TI) <msp at baylibre.com>