linux-kernel - [PATCH 0/5] soc: renesas: Add system controller support for RZ/G3E SoC

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Message-ID: <20241206212559.192705-1-john.madieu.xa@bp.renesas.com>
Date: Fri,  6 Dec 2024 22:25:54 +0100
From: John Madieu <john.madieu.xa@...renesas.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Rob Herring <robh@...nel.org>,
	Biju Das <biju.das.jz@...renesas.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Cc: john.madieu@...il.com,
	linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	John Madieu <john.madieu.xa@...renesas.com>
Subject: [PATCH 0/5] soc: renesas: Add system controller support for RZ/G3E SoC

This patch series adds support for the RZ/G3E system controller and extends
the existing RZ/V2H(P) system controller to support syscon. The RZ/G3E
system controller allows detecting various SoC features like core count,
NPU availability, and CA55 PLL configuration.

Key features:
- Syscon support for both RZ/V2H and RZ/G3E system controllers
- Detection of quad/dual core configuration
- Detection of Ethos-U55 NPU presence
- Validation of CA55 PLL frequency setting
- SoC-specific extended identification through callbacks

This patch series depends upon [1] and [2].

Tested:
- Example of SoC detection:
[    0.065608] renesas-rz-sysc 10430000.system-controller: Detected Renesas Quad Core RZ/G3E r9a09g047 Rev 0  with Ethos-U55
- Example of PLL misconfiguration warning:
 [    0.065616] renesas-rz-sysc 10430000.system-controller: CA55 PLL is not set to 1.7GHz

[1] https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=914097
[2] https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=912697

John Madieu (5):
  dt-bindings: arm: renesas: Add syscon compatibility to RZ/V2H(P) SYS
    Controller
  dt-bindings: soc: renesas: Document Renesas RZ/G3E SoC variants
  soc: renesas: rz-sysc: Add support for RZ/G3E family
  arm64: dts: renesas: r9a09g047: add sys node
  arm64: dts: renesas: r9a09g057: Add syscon compatibility to sys node

 .../soc/renesas/renesas,r9a09g057-sys.yaml    |  8 ++-
 arch/arm64/boot/dts/renesas/r9a09g047.dtsi    |  7 ++
 arch/arm64/boot/dts/renesas/r9a09g057.dtsi    |  2 +-
 drivers/soc/renesas/Kconfig                   |  6 ++
 drivers/soc/renesas/Makefile                  |  1 +
 drivers/soc/renesas/r9a09g047-sysc.c          | 70 +++++++++++++++++++
 drivers/soc/renesas/rz-sysc.c                 | 44 ++++++++----
 drivers/soc/renesas/rz-sysc.h                 |  7 ++
 8 files changed, 128 insertions(+), 17 deletions(-)
 create mode 100644 drivers/soc/renesas/r9a09g047-sysc.c

-- 
2.25.1