From 68532ef010e202cdc0a5a734b6d828ddcbc6a7e9 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Thu, 5 Mar 2026 22:54:04 +0100
Subject: [PATCH] ARM: dts: renesas: r9a06g032-rzn1d400-db: Add QSPI node
 including NOR flash

Enable the QSPI controller to access the connected SPI NOR flash. The
NOR datasheet may suggest faster tuning parameters but those did not
work on my board.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260305220023.28257-2-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 .../dts/renesas/r9a06g032-rzn1d400-db.dts     | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)

diff --git a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
index 4a72aa7663f25..b720c001e7768 100644
--- a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
+++ b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
@@ -300,6 +300,84 @@
 		pinmux = <RZN1_PINMUX(152, RZN1_FUNC_MDIO1_SWITCH)>,
 			 <RZN1_PINMUX(153, RZN1_FUNC_MDIO1_SWITCH)>;
 	};
+
+	pins_qspi0: pins-qspi0 {
+		pinmux = <RZN1_PINMUX(74, RZN1_FUNC_QSPI)>,
+			 <RZN1_PINMUX(75, RZN1_FUNC_QSPI)>,
+			 <RZN1_PINMUX(76, RZN1_FUNC_QSPI)>,
+			 <RZN1_PINMUX(77, RZN1_FUNC_QSPI)>,
+			 <RZN1_PINMUX(78, RZN1_FUNC_QSPI)>,
+			 <RZN1_PINMUX(79, RZN1_FUNC_QSPI)>;
+		bias-disable;
+	};
+};
+
+&qspi0 {
+	pinctrl-0 = <&pins_qspi0>;
+	pinctrl-names = "default";
+	status = "okay";
+	bootph-all;
+
+	flash@0 {
+		reg = <0>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <62500000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+		cdns,read-delay = <1>;
+		cdns,tshsl-ns = <200>;
+		cdns,tsd2d-ns = <255>;
+		cdns,tchsh-ns = <20>;
+		cdns,tslch-ns = <20>;
+		bootph-all;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				/* 64KiB */
+				label = "spl";
+				reg = <0x0000000 0x00010000>;
+			};
+			partition@10000 {
+				/* 64KiB */
+				label = "pkgt";
+				reg = <0x0010000 0x00010000>;
+			};
+			partition@20000 {
+				/* 512KiB */
+				label = "u-boot";
+				reg = <0x0020000 0x00080000>;
+			};
+			partition@a0000 {
+				/* 64KiB */
+				label = "env";
+				reg = <0x00a0000 0x00010000>;
+			};
+			partition@b0000 {
+				/* 128KiB */
+				label = "dtb";
+				reg = <0x00b0000 0x00020000>;
+			};
+			partition@d0000 {
+				/* 1MiB */
+				label = "cm3";
+				reg = <0x00d0000 0x00100000>;
+			};
+			partition@1d0000 {
+				/* 6MiB */
+				label = "kernel";
+				reg = <0x01d0000 0x00600000>;
+			};
+			partition@7d0000 {
+				/* Remaining */
+				label = "data";
+				reg = <0x07d0000 0x1830000>;
+			};
+		};
+	};
 };
 
 &rtc0 {
-- 
2.47.3