linux-kernel - Re: [PATCH 2/2] soc: renesas: Identify RZ/Five SoC

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Date:   Fri, 22 Jul 2022 11:37:08 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc:     Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Prabhakar <prabhakar.csengg@...il.com>,
        Biju Das <biju.das.jz@...renesas.com>
Subject: Re: [PATCH 2/2] soc: renesas: Identify RZ/Five SoC

Hi Prabhakar,

On Fri, Jul 22, 2022 at 12:12 AM Lad Prabhakar
<prabhakar.mahadev-lad.rj@...renesas.com> wrote:
> Add support for identifying the (R9A07G043) RZ/Five SoC.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Thanks for your patch!

> --- a/drivers/soc/renesas/Kconfig
> +++ b/drivers/soc/renesas/Kconfig
> @@ -333,6 +333,16 @@ config ARCH_R9A09G011
>
>  endif # ARM64
>
> +if RISCV
> +
> +config ARCH_R9A07G043
> +       bool "RISCV Platform support for RZ/Five"

RISC-V

> +       select ARCH_RZG2L
> +       help
> +         This enables support for the Renesas RZ/Five SoC.
> +
> +endif # RISCV
> +
>  config RST_RCAR
>         bool "Reset Controller support for R-Car" if COMPILE_TEST
>

> @@ -102,6 +106,11 @@ static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
>         .id     = 0x40,
>  };
>
> +static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
> +       .family = &fam_rzfive,
> +       .id     = 0x847c447,

The Hardware User's Manual Rev.1.00 says H’x841_C447?

> @@ -398,6 +411,7 @@ static const struct renesas_id id_prr __initconst = {
>
>  static const struct of_device_id renesas_ids[] __initconst = {
>         { .compatible = "renesas,bsid",                 .data = &id_bsid },
> +       { .compatible = "renesas,r9a07g043-rzfive-sysc", .data = &id_rzg2l },
>         { .compatible = "renesas,r9a07g043-sysc",       .data = &id_rzg2l },
>         { .compatible = "renesas,r9a07g044-sysc",       .data = &id_rzg2l },
>         { .compatible = "renesas,r9a07g054-sysc",       .data = &id_rzg2l },

This change might not be needed (cfr. my comments on patch 1/2).

The rest LGTM.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds