[PATCH] arm64: dts: renesas: r8a779g3: Describe generic SPI NOR support on Retronix R-Car V4H Sparrow Hawk board

[PATCH] arm64: dts: renesas: r8a779g3: Describe generic SPI NOR support on Retronix R-Car V4H Sparrow Hawk board

[Marek Vasut]

Retronix R-Car V4H Sparrow Hawk EVTA1 is populated with Spansion S25FS512S,
EVTB1 is populated with Winbond W77Q51NW. Describe the SPI NOR using generic
"spi-flash" compatible, because both flashes can be auto-detected based on
their built-in IDs.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
 arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts b/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts
index 900807fbca8b..ebff536afdd3 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk.dts
@@ -767,7 +767,11 @@ &rpc {
 	status = "okay";
 
 	flash@0 {
-		compatible = "spansion,s25fs512s", "jedec,spi-nor";
+		/*
+		 * EVTA1 is populated with Spansion S25fS512S
+		 * EVTB1 is populated with Winbond W77Q51NW
+		 */
+		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
 		spi-rx-bus-width = <4>;
-- 
2.47.2

Re: [PATCH] arm64: dts: renesas: r8a779g3: Describe generic SPI NOR support on Retronix R-Car V4H Sparrow Hawk board

[Geert Uytterhoeven]

Hi Marek,

Thanks for your patch!

On Sun, 20 Jul 2025 at 21:48, Marek Vasut
<marek.vasut+renesas@mailbox.org> wrote:
> Retronix R-Car V4H Sparrow Hawk EVTA1 is populated with Spansion S25FS512S,
> EVTB1 is populated with Winbond W77Q51NW. Describe the SPI NOR using generic
> "spi-flash" compatible, because both flashes can be auto-detected based on

s/spi-flash/jedec,spi-nor/

> their built-in IDs.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

LGTM (I don't have EVTB1 schematics), so
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v6.18.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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