linux-kernel - Re: [PATCH v2 2/2] riscv: dts: renesas: add specific RZ/Five cache compatible

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Message-ID: <CAMuHMdVwBqC3jHgwLJkLcNZo8W0Aw9ZfoXL1tRaL7B2EpKuWvg@mail.gmail.com>
Date: Mon, 12 May 2025 15:57:41 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Conor Dooley <conor@...nel.org>
Cc: linux-renesas-soc@...r.kernel.org, 
	Conor Dooley <conor.dooley@...rochip.com>, Ben Zong-You Xie <ben717@...estech.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Magnus Damm <magnus.damm@...il.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] riscv: dts: renesas: add specific RZ/Five cache compatible

Hi Conor,

On Mon, 12 May 2025 at 15:48, Conor Dooley <conor@...nel.org> wrote:
> From: Conor Dooley <conor.dooley@...rochip.com>
>
> When the binding was originally written, it was assumed that all
> ax45mp-caches had the same properties etc. This has turned out to be
> incorrect, as the QiLai SoC has a different number of cache-sets.
>
> Add a specific compatible for the RZ/Five for property enforcement and
> in case there turns out to be additional differences between these
> implementations of the cache controller.
>
> Acked-by: Ben Zong-You Xie <ben717@...estech.com>
> Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>

Thanks for the update!

> --- a/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi
> +++ b/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi
> @@ -143,7 +143,8 @@ plic: interrupt-controller@...00000 {
>         };
>
>         l2cache: cache-controller@...00000 {
> -               compatible = "andestech,ax45mp-cache", "cache";
> +               compatible = "renesas,r9a07g043f-ax45mp-cache", "andestech,ax45mp-cache",
> +                            "cache";
>                 reg = <0x0 0x13400000 0x0 0x100000>;
>                 interrupts = <SOC_PERIPHERAL_IRQ(476) IRQ_TYPE_LEVEL_HIGH>;
>                 cache-size = <0x40000>;

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
i.e. will queue in renesas-devel for v6.16 if there are no objections.

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