arm: dts: an7581: Add SNAND node

Add SNAND node to Airoha AN7581 EVB DTS to enable support for attached
SNAND flash.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
diff --git a/arch/arm/dts/an7581-u-boot.dtsi b/arch/arm/dts/an7581-u-boot.dtsi
index 46526ff..a9297ca 100644
--- a/arch/arm/dts/an7581-u-boot.dtsi
+++ b/arch/arm/dts/an7581-u-boot.dtsi
@@ -59,6 +59,26 @@
 			reg = <0 0x1fb58000 0 0x8000>;
 		};
 
+		snfi: spi@1fa10000 {
+			compatible = "airoha,en7581-snand";
+			reg = <0x0 0x1fa10000 0x0 0x140>,
+			      <0x0 0x1fa11000 0x0 0x600>;
+
+			clocks = <&scuclk EN7523_CLK_SPI>;
+			clock-names = "spi";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			spi_nand: nand@0 {
+				compatible = "spi-nand";
+				reg = <0>;
+				spi-max-frequency = <50000000>;
+				spi-tx-bus-width = <1>;
+				spi-rx-bus-width = <2>;
+			};
+		};
+
 		mmc0: mmc@1fa0e000 {
 			compatible = "mediatek,mt7622-mmc";
 			reg = <0x0 0x1fa0e000 0x0 0x1000>,