linux-kernel - [PATCH v2 3/3] ARM: dts: en7523: Add SPI node

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Date:   Tue, 27 Sep 2022 13:32:29 +0200
From:   Bert Vermeulen <bert@...t.com>
To:     Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Bert Vermeulen <bert@...t.com>, John Crispin <john@...ozen.org>,
        Benjamin Larsson <benjamin.larsson@...sys.eu>
Subject: [PATCH v2 3/3] ARM: dts: en7523: Add SPI node

This adds an SPI node for the EN7523, so far only used for hooking up
the NAND boot flash.

Signed-off-by: Bert Vermeulen <bert@...t.com>
---
 arch/arm/boot/dts/en7523-evb.dts | 20 ++++++++++++++++++++
 arch/arm/boot/dts/en7523.dtsi    | 10 ++++++++++
 2 files changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/en7523-evb.dts b/arch/arm/boot/dts/en7523-evb.dts
index f23a25cce119..50ccd58b1672 100644
--- a/arch/arm/boot/dts/en7523-evb.dts
+++ b/arch/arm/boot/dts/en7523-evb.dts
@@ -26,6 +26,26 @@ memory@...00000 {
 	};
 };
 
+&spi0 {
+	nand: nand@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		nand-ecc-engine = <&nand>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0x0 0x80000>;
+				read-only;
+			};
+		};
+	};
+};
+
 &gpio0 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/en7523.dtsi b/arch/arm/boot/dts/en7523.dtsi
index 7f839331a777..a0d0862005fb 100644
--- a/arch/arm/boot/dts/en7523.dtsi
+++ b/arch/arm/boot/dts/en7523.dtsi
@@ -201,4 +201,14 @@ pcie_intc1: interrupt-controller {
 			#interrupt-cells = <1>;
 		};
 	};
+
+	spi0: spi@...10000 {
+		compatible = "airoha,en7523-spi";
+		reg = <0x1fa10000 0x10000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&scu EN7523_CLK_SPI>;
+		spi-rx-bus-width = <2>;
+		spi-tx-bus-width = <2>;
+	};
 };
-- 
2.25.1