[PATCH v4] arm64: dts: renesas: r8a779g3: Describe generic SPI NOR support on Retronix R-Car V4H Sparrow Hawk board

Marek Vasut marek.vasut+renesas at mailbox.org
Wed Aug 13 23:25:56 CEST 2025


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

Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Tom Rini <trini at konsulko.com>
Cc: u-boot at lists.denx.de
---
V2: Update commit message, s at spi-flash@jedec,spi-nor@
V3: Use capital F in the comment, s at fS@FS@
V4: Move DT change to arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
    until the same fix lands in mainline Linux
---
 arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi b/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
index c9f302799f1..3210360ebe2 100644
--- a/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
+++ b/arch/arm/dts/r8a779g3-sparrow-hawk-u-boot.dtsi
@@ -44,6 +44,11 @@
 
 &rpc {
 	flash at 0 {
+		/*
+		 * EVTA1 is populated with Spansion S25FS512S
+		 * EVTB1 is populated with Winbond W77Q51NW
+		 */
+		compatible = "jedec,spi-nor";
 		spi-tx-bus-width = <1>;
 		spi-rx-bus-width = <1>;
 	};
-- 
2.47.2



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