[PATCH] arm64: dts: rockchip: Enable internal SPI flash for ROCK Pi 4A/B/C

[Stefan Nagy]

The ROCK Pi 4A, ROCK Pi 4B and ROCK Pi 4C boards contain a nor-flash chip
connected to spi1. Enable spi1 and add the device node.

This patch has been tested on ROCK Pi 4A.

Signed-off-by: Stefan Nagy <stefan.nagy at ixypsilon.net>
---
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts | 10 ++++++++++
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts | 10 ++++++++++
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts | 10 ++++++++++
 3 files changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts
index 89f2af5e1..4ea4bec95 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts
@@ -11,3 +11,13 @@ / {
 	model = "Radxa ROCK Pi 4A";
 	compatible = "radxa,rockpi4a", "radxa,rockpi4", "rockchip,rk3399";
 };
+
+&spi1 {
+	status = "okay";
+
+	flash at 0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts
index 080654592..84b9d8b3d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts
@@ -30,6 +30,16 @@ brcmf: wifi at 1 {
 	};
 };
 
+&spi1 {
+	status = "okay";
+
+	flash at 0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
+
 &uart0 {
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
index 4053ba726..39917f987 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
@@ -42,6 +42,16 @@ &sound {
 	hp-det-gpio = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
 };
 
+&spi1 {
+	status = "okay";
+
+	flash at 0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
+
 &uart0 {
 	status = "okay";
 
-- 
2.30.2