linux-kernel - [PATCH 3/4] arm64: dts: renesas: r9a09g056n48-rzv2n-evk: Enable serial NOR FLASH

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Message-ID: <20250624174033.475401-4-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Tue, 24 Jun 2025 18:40:32 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Geert Uytterhoeven <geert+renesas@...der.be>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>
Cc: linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Prabhakar <prabhakar.csengg@...il.com>,
	Biju Das <biju.das.jz@...renesas.com>,
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 3/4] arm64: dts: renesas: r9a09g056n48-rzv2n-evk: Enable serial NOR FLASH

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Enable MT25QU512ABB8E12 FLASH connected to XSPI.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
 .../dts/renesas/r9a09g056n48-rzv2n-evk.dts    | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
index 5c4ee66b12ee..73e95425c89a 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
@@ -342,6 +342,18 @@ vbus {
 			pinmux = <RZV2N_PORT_PINMUX(9, 5, 14)>; /* VBUS */
 		};
 	};
+
+	xspi_pins: xspi0 {
+		ctrl {
+			pins = "XSPI0_RESET0N", "XSPI0_CS0N", "XSPI0_CKP";
+			output-enable;
+		};
+
+		io {
+			pins = "XSPI0_IO0", "XSPI0_IO1", "XSPI0_IO2", "XSPI0_IO3";
+			renesas,output-impedance = <3>;
+		};
+	};
 };
 
 &qextal_clk {
@@ -384,3 +396,39 @@ &usb2_phy0 {
 &wdt1 {
 	status = "okay";
 };
+
+&xspi {
+	pinctrl-0 = <&xspi_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		vcc-supply = <&reg_1p8v>;
+		m25p,fast-read;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "bl2";
+				reg = <0x00000000 0x00060000>;
+			};
+
+			partition@...00 {
+				label = "fip";
+				reg = <0x00060000 0x1fa0000>;
+			};
+
+			partition@...0000 {
+				label = "user";
+				reg = <0x2000000 0x2000000>;
+			};
+		};
+	};
+};
-- 
2.49.0