[PATCH 00/15] Add support for Renesas RZ/V2N SoC and EVK

[Lad, Prabhakar]

Hi Rob,

On Wed, Mar 26, 2025 at 7:11 PM Rob Herring (Arm) <robh at kernel.org> wrote:
>
>
> On Wed, 26 Mar 2025 14:39:30 +0000, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
> >
> > This patch series adds initial support for the Renesas RZ/V2N (R9A09G056)
> > SoC and its evaluation board (EVK). The Renesas RZ/V2N is a vision AI
> > microprocessor (MPU) designed for power-efficient AI inference and
> > real-time vision processing. It features Renesas' proprietary AI
> > accelerator (DRP-AI3), delivering up to 15 TOPS AI performance, making
> > it ideal for applications such as Driver Monitoring Systems (DMS),
> > industrial monitoring cameras, and mobile robots.
> >
> > Key features of the RZ/V2N SoC:
> >   Processing Power:
> >     - Quad Arm Cortex-A55 cores at 1.8GHz for high-performance computing
> >     - Single Arm Cortex-M33 core at 200MHz for real-time processing
> >     - 1.5MB on-chip SRAM for fast data access
> >     - LPDDR4/LPDDR4X memory interface for high-speed RAM access
> >
> >   AI and Vision Processing:
> >     - DRP-AI3 accelerator for low-power, high-efficiency AI inference
> >     - Arm Mali-C55 ISP (optional) for image signal processing
> >     - Dual MIPI CSI-2 camera interfaces for multi-camera support
> >
> >   High-Speed Interfaces:
> >     - PCIe Gen3 (2-lane) 1ch for external device expansion
> >     - USB 3.2 (Gen2) 1ch (Host-only) for high-speed data transfer
> >     - USB 2.0 (Host/Function) 1ch for legacy connectivity
> >     - Gigabit Ethernet (2 channels) for network communication
> >
> >   Industrial and Automotive Features:
> >     - 6x CAN FD channels for automotive and industrial networking
> >     - 24-channel ADC for sensor data acquisition
> >
> > LINK: https://tinyurl.com/renesas-rz-v2n-soc
> >
> > The series introduces:
> > - Device tree bindings for various subsystems (SYS, SCIF, SDHI, CPG, pinctrl).
> > - RZ/V2N SoC identification support.
> > - Clock and pinctrl driver updates for RZ/V2N.
> > - Initial DTSI and device tree for the RZ/V2N SoC and EVK.
> > - Enabling RZ/V2N SoC support in `arm64 defconfig`.
> >
> > These patches have been tested on the RZ/V2N EVK with v6.14,
> > logs can be found here https://pastebin.com/8i3jgVby
> >
> > Cheers,
> > Prabhakar
> >
> > Lad Prabhakar (15):
> >   dt-bindings: soc: renesas: Document Renesas RZ/V2N SoC variants
> >   dt-bindings: soc: renesas: Document RZ/V2N EVK board
> >   soc: renesas: Add config option for RZ/V2N (R9A09G056) SoC
> >   dt-bindings: soc: renesas: Document SYS for RZ/V2N SoC
> >   soc: renesas: sysc: Add SoC identification for RZ/V2N SoC
> >   dt-bindings: serial: renesas: Document RZ/V2N SCIF
> >   dt-bindings: mmc: renesas,sdhi: Document RZ/V2N support
> >   dt-bindings: clock: renesas: Document RZ/V2N SoC CPG
> >   clk: renesas: rzv2h-cpg: Sort compatible list based on SoC part number
> >   clk: renesas: rzv2h: Add support for RZ/V2N SoC
> >   dt-bindings: pinctrl: renesas: Document RZ/V2N SoC
> >   pinctrl: renesas: rzg2l: Add support for RZ/V2N SoC
> >   arm64: dts: renesas: Add initial SoC DTSI for RZ/V2N
> >   arm64: dts: renesas: Add initial device tree for RZ/V2N EVK
> >   arm64: defconfig: Enable Renesas RZ/V2N SoC
> >
> >  .../bindings/clock/renesas,rzv2h-cpg.yaml     |   5 +-
> >  .../devicetree/bindings/mmc/renesas,sdhi.yaml |   4 +-
> >  .../pinctrl/renesas,rzg2l-pinctrl.yaml        |   2 +
> >  .../bindings/serial/renesas,scif.yaml         |   1 +
> >  .../soc/renesas/renesas,r9a09g057-sys.yaml    |   1 +
> >  .../bindings/soc/renesas/renesas.yaml         |  15 +
> >  arch/arm64/boot/dts/renesas/Makefile          |   2 +
> >  arch/arm64/boot/dts/renesas/r9a09g056.dtsi    | 264 ++++++++++++++++++
> >  .../dts/renesas/r9a09g056n48-rzv2n-evk.dts    | 115 ++++++++
> >  arch/arm64/configs/defconfig                  |   1 +
> >  drivers/clk/renesas/Kconfig                   |   5 +
> >  drivers/clk/renesas/Makefile                  |   1 +
> >  drivers/clk/renesas/r9a09g056-cpg.c           | 152 ++++++++++
> >  drivers/clk/renesas/rzv2h-cpg.c               |  18 +-
> >  drivers/clk/renesas/rzv2h-cpg.h               |   1 +
> >  drivers/pinctrl/renesas/Kconfig               |   1 +
> >  drivers/pinctrl/renesas/pinctrl-rzg2l.c       |  36 ++-
> >  drivers/soc/renesas/Kconfig                   |  10 +
> >  drivers/soc/renesas/Makefile                  |   1 +
> >  drivers/soc/renesas/r9a09g056-sys.c           | 107 +++++++
> >  drivers/soc/renesas/rz-sysc.c                 |   3 +
> >  drivers/soc/renesas/rz-sysc.h                 |   1 +
> >  .../dt-bindings/clock/renesas,r9a09g056-cpg.h |  24 ++
> >  .../pinctrl/renesas,r9a09g056-pinctrl.h       |  30 ++
> >  24 files changed, 790 insertions(+), 10 deletions(-)
> >  create mode 100644 arch/arm64/boot/dts/renesas/r9a09g056.dtsi
> >  create mode 100644 arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
> >  create mode 100644 drivers/clk/renesas/r9a09g056-cpg.c
> >  create mode 100644 drivers/soc/renesas/r9a09g056-sys.c
> >  create mode 100644 include/dt-bindings/clock/renesas,r9a09g056-cpg.h
> >  create mode 100644 include/dt-bindings/pinctrl/renesas,r9a09g056-pinctrl.h
> >
> > --
> > 2.49.0
> >
> >
> >
>
>
> My bot found new DTB warnings on the .dts files added or changed in this
> series.
>
> Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
> are fixed by another series. Ultimately, it is up to the platform
> maintainer whether these warnings are acceptable or not. No need to reply
> unless the platform maintainer has comments.
>
> If you already ran DT checks and didn't see these error(s), then
> make sure dt-schema is up to date:
>
>   pip3 install dtschema --upgrade
>
>
> This patch series was applied (using b4) to base:
>  Base: attempting to guess base-commit...
>  Base: tags/next-20250326 (best guess, 15/18 blobs matched)
>
> If this is not the correct base, please add 'base-commit' tag
> (or use b4 which does this automatically)
>
> New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/renesas/' for 20250326143945.82142-1-prabhakar.mahadev-lad.rj at bp.renesas.com:
>
> arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dtb: pinctrl at 10410000: 'interrupt-controller' is a required property
>         from schema $id: http://devicetree.org/schemas/pinctrl/renesas,rzg2l-pinctrl.yaml#
> arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dtb: pinctrl at 10410000: '#interrupt-cells' is a required property
>         from schema $id: http://devicetree.org/schemas/pinctrl/renesas,rzg2l-pinctrl.yaml#
>
>
As mentioned in patch 13/15 [0] the above warnings are expected this
is because as part of the initial support, the ICU has not been added
yet. The interrupt-related properties will be added to the pinctrl
node along with ICU support.

[0] https://lore.kernel.org/all/20250326143945.82142-14-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar