Re: [PATCH 09/10] arm64: dts: renesas: Add HiHope RZ/G2M v3.0 SoC main board support

[Krzysztof Kozlowski <krzk@kernel.org>]

On 21/08/2026 17:03, Ayman Chaudhry wrote:
> Add support for the HiHope RZ/G2M v3.0 (a.k.a. R8A774A3) SoC main
> board.
> 
> The RZ/G2M v3.0 SoC main board is similar to the RZ/G2M v1.3 SoC main
> board, so there are already DTSI files available in the kernel. These
> DTSI files will be included once additional support (e.g. I2C, GPIO
> and sound) is added for the RZ/G2M v3.0 SoC.
> 
> Signed-off-by: Ayman Chaudhry <ayman.chaudhry.kc@renesas.com>
> ---
>  arch/arm64/boot/dts/renesas/Makefile          |  2 +
>  .../dts/renesas/r8a774a3-hihope-rzg2m.dts     | 50 +++++++++++++++++++
>  2 files changed, 52 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/renesas/r8a774a3-hihope-rzg2m.dts
> 
> diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
> index 8bf155badd11..6ae96027664d 100644
> --- a/arch/arm64/boot/dts/renesas/Makefile
> +++ b/arch/arm64/boot/dts/renesas/Makefile
> @@ -8,6 +8,8 @@ dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-rev2.dtb
>  dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-rev2-ex.dtb
>  dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-rev2-ex-idk-1110wr.dtb
>  
> +dtb-$(CONFIG_ARCH_R8A774A3) += r8a774a3-hihope-rzg2m.dtb
> +
>  dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-beacon-rzg2n-kit.dtb
>  dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n.dtb
>  dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n-ex.dtb
> diff --git a/arch/arm64/boot/dts/renesas/r8a774a3-hihope-rzg2m.dts b/arch/arm64/boot/dts/renesas/r8a774a3-hihope-rzg2m.dts
> new file mode 100644
> index 000000000000..f51ba4fd602e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/renesas/r8a774a3-hihope-rzg2m.dts
> @@ -0,0 +1,50 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Device Tree Source for the HiHope RZ/G2M v3.0 SoC main board
> + *
> + *Copyright (C) 2026 Renesas Electronics Corp.
> + */
> +
> +/dts-v1/;
> +#include "r8a774a3.dtsi"
> +
> +/ {
> +	model = "HopeRun HiHope RZ/G2M v3.0 main board based on r8a774a3";
> +	compatible = "hoperun,hihope-rzg2m", "renesas,r8a774a3";
> +
> +	memory@48000000 {
> +		device_type = "memory";
> +		/* First 128MiB is reserved for secure area */
> +		reg = <0x0 0x48000000 0x0 0x78000000>;
> +	};
> +
> +	memory@600000000 {
> +		device_type = "memory";
> +		reg = <0x6 0x00000000 0x0 0x80000000>;
> +	};
> +
> +	aliases {
> +		serial0 = &scif2;
> +	};
> +
> +	chosen {
> +		bootargs = "ignore_loglevel";

Drop bootargs. Not a mainline DTS attribute. Why should my board ignore
loglevel? How is it hardware description?

Best regards,
Krzysztof