LoongArch: dts: loongson-2k1000: Add nand controller support

The module is supported, enable it.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

Author: AaronDot

arch/loongarch/boot/dts/loongson-2k1000-ref.dts

@@ -48,6 +48,28 @@
 	};
 };
 
+&apbdma0 {
+	status = "okay";
+};
+
+&nand {
+	status = "okay";
+
+	pinctrl-0 = <&nand_pins_default>;
+	pinctrl-names = "default";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+	nand@0 {
+		reg = <0>;
+		label = "ls2k1000-nand";
+		nand-use-soft-ecc-engine;
+		nand-ecc-algo = "bch";
+		nand-ecc-strength = <8>;
+		nand-ecc-step-size = <512>;
+	};
+};
+
 &apbdma1 {
 	status = "okay";
 };

arch/loongarch/boot/dts/loongson-2k1000.dtsi

@@ -248,7 +248,7 @@
 			#thermal-sensor-cells = <1>;
 		};
 
-		dma-controller@1fe00c00 {
+		apbdma0: dma-controller@1fe00c00 {
 			compatible = "loongson,ls2k1000-apbdma";
 			reg = <0x0 0x1fe00c00 0x0 0x8>;
 			interrupt-parent = <&liointc1>;
@@ -364,6 +364,17 @@
 			status = "disabled";
 		};
 
+		nand: nand-controller@1fe26000 {
+			compatible = "loongson,ls2k1000-nand-controller";
+			reg = <0 0x1fe26000 0 0x24>,
+			      <0 0x1fe26040 0 0x4>,
+			      <0 0x1fe00438 0 0x8>;
+			reg-names = "nand", "nand-dma", "dma-config";
+			dmas = <&apbdma0 0>;
+			dma-names = "rxtx";
+			status = "disabled";
+		};
+
 		pmc: power-management@1fe27000 {
 			compatible = "loongson,ls2k1000-pmc", "loongson,ls2k0500-pmc", "syscon";
 			reg = <0x0 0x1fe27000 0x0 0x58>;