arm64: dts: mediatek: add mtk-snfi for mt7622

This patch adds a device-tree node for the MTK SPI-NAND Flash Interface
for MT7622 device tree.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Link: https://lore.kernel.org/r/20220424032527.673605-6-gch981213@gmail.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Author: 981213

arch/arm64/boot/dts/mediatek/mt7622.dtsi

@@ -552,6 +552,18 @@
 		status = "disabled";
 	};
 
+	snfi: spi@1100d000 {
+		compatible = "mediatek,mt7622-snand";
+		reg = <0 0x1100d000 0 0x1000>;
+		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&pericfg CLK_PERI_NFI_PD>, <&pericfg CLK_PERI_SNFI_PD>;
+		clock-names = "nfi_clk", "pad_clk";
+		nand-ecc-engine = <&bch>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
 	bch: ecc@1100e000 {
 		compatible = "mediatek,mt7622-ecc";
 		reg = <0 0x1100e000 0 0x1000>;