u-boot/arch/mips/dts/ci20.dts

// SPDX-License-Identifier: GPL-2.0+

/dts-v1/;

#include "jz4780.dtsi"

/ {
	compatible = "img,ci20", "ingenic,jz4780";

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
		serial3 = &uart3;
		serial4 = &uart4;
	};

	chosen {
		stdout-path = "serial4:115200n8";
	};

	memory {
		device_type = "memory";
		reg = <0x0 0x10000000
		       0x30000000 0x30000000>;
	};
};

&ext {
	clock-frequency = <48000000>;
};

&uart0 {
	status = "okay";
};

&uart1 {
	status = "okay";
};

&uart3 {
	status = "okay";
};

&uart4 {
	status = "okay";
};

&nemc {
	status = "okay";

	nandc: nand-controller@1 {
		compatible = "ingenic,jz4780-nand";
		reg = <1 0 0x1000000>;

		#address-cells = <1>;
		#size-cells = <0>;

		ingenic,bch-controller = <&bch>;

		ingenic,nemc-tAS = <10>;
		ingenic,nemc-tAH = <5>;
		ingenic,nemc-tBP = <10>;
		ingenic,nemc-tAW = <15>;
		ingenic,nemc-tSTRV = <100>;

		nand@1 {
			reg = <1>;

			nand-ecc-step-size = <1024>;
			nand-ecc-strength = <24>;
			nand-ecc-mode = "hw";
			nand-on-flash-bbt;

			partitions {
				compatible = "fixed-partitions";
				#address-cells = <2>;
				#size-cells = <2>;

				partition@0 {
					label = "u-boot-spl";
					reg = <0x0 0x0 0x0 0x800000>;
				};

				partition@0x800000 {
					label = "u-boot";
					reg = <0x0 0x800000 0x0 0x200000>;
				};

				partition@0xa00000 {
					label = "u-boot-env";
					reg = <0x0 0xa00000 0x0 0x200000>;
				};

				partition@0xc00000 {
					label = "boot";
					reg = <0x0 0xc00000 0x0 0x4000000>;
				};

				partition@0x8c00000 {
					label = "system";
					reg = <0x0 0x4c00000 0x1 0xfb400000>;
				};
			};
		};
	};
};

&bch {
	status = "okay";
};

&mmc0 {
	bus-width = <4>;
	max-frequency = <50000000>;
	status = "okay";
};

&mmc1 {
	bus-width = <4>;
	max-frequency = <50000000>;
	status = "okay";
};