linux-kernel - [PATCH v2 0/4] Add RZ/A1 and RZ/A2 support to the rpc-if driver

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Message-Id: <175232755943.19062.8739774784256290646.sendpatchset@1.0.0.127.in-addr.arpa>
Date: Sat, 12 Jul 2025 15:39:19 +0200
From: Magnus Damm <damm@...nsource.se>
To: linux-renesas-soc@...r.kernel.org
Cc: robh@...nel.org,Magnus Damm <damm@...nsource.se>,geert+renesas@...der.be,devicetree@...r.kernel.org,conor+dt@...nel.org,krzk@...nel.org,linux-kernel@...r.kernel.org,wsa+renesas@...g-engineering.com,sergei.shtylyov@...il.com,p.zabel@...gutronix.de
Subject: [PATCH v2 0/4] Add RZ/A1 and RZ/A2 support to the rpc-if driver

Add RZ/A1 and RZ/A2 support to the rpc-if driver (v2)

[PATCH v2 1/4] dt-bindings: memory-controllers: renesas,rpc-if: Add RZ/A1 and RZ/A2 compat strings
[PATCH v2 2/4] ARM: dts: renesas: r7s72100: add rpc-if nodes
[PATCH v2 3/4] ARM: dts: renesas: r7s9210: add rpc-if node
[PATCH v2 3/4] memory: renesas-rpc-if: Add RZ/A1 and RZ/A2 support

Document new rpc-if compat strings for RZ/A1 and RZ/A2, add rpc-if nodes
to RZ/A1 and RZ/A2 DT files and add support to the driver. The reset
controller is made optional since RZ/A1 hardware comes without reset bits.

These DT bindings and SoC DT files are also used by U-Boot. The patches
have been checked against checkpatch.pl and the CC list is taken from the
get_maintainers.pl script. I have not run any scripts to check on
the validity of the DT binding documentation change or new DT nodes.

The patches have no ordering requirements, feel free to pick up part
of this series and/or ask me to rework and resend.

Signed-off-by: Magnus Damm <damm@...nsource.se>
---

 Previous verison posted as:
  [PATCH 0/6] Add rpc-if to RZ/A1, RZ/A2 and update/add board support

 Changes since v1:
 - Added reg-names to the rpc-if nodes in r7s72100.dtsi and r7s9210.dtsi
 - Moved the compat strings to keep sort order in the DT binding doc
 - Added driver code that makes use of the new bindings
 - Dropped board code

 Applies to next-20250710

 Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml |    5 ++
 arch/arm/boot/dts/renesas/r7s72100.dtsi                                  |   24 ++++++++++
 arch/arm/boot/dts/renesas/r7s9210.dtsi                                   |   13 +++++
 drivers/memory/renesas-rpc-if.c                                          |   15 +++++-
 include/memory/renesas-rpc-if.h                                          |    1