thead-uboot/arch/riscv/dts/light-evb-mpw-c910.dts

/dts-v1/;
/ {
	model = "T-HEAD c910 light";
	compatible = "thead,c910_light";
	#address-cells = <2>;
	#size-cells = <2>;

	memory@0 {
		device_type = "memory";
		reg = <0x0 0xc0000000 0x0 0x40000000>;
	};

	aliases {
		spi0 = &spi0;
		spi1 = &qspi0;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		timebase-frequency = <3000000>;
		u-boot,dm-pre-reloc;
		cpu@0 {
			device_type = "cpu";
			reg = <0>;
			status = "okay";
			compatible = "riscv";
			riscv,isa = "rv64imafdcvsu";
			mmu-type = "riscv,sv39";
			u-boot,dm-pre-reloc;
		};
	};

	soc {
		#address-cells = <2>;
		#size-cells = <2>;
		compatible = "simple-bus";
		ranges;
		u-boot,dm-pre-reloc;

		dummy_apb: apb-clock {
			compatible = "fixed-clock";
			clock-frequency = <50000000>;
			clock-output-names = "dummy_apb";
			#clock-cells = <0>;
			u-boot,dm-pre-reloc;
		};

		dummy_ahb: ahb-clock {
			compatible = "fixed-clock";
			clock-frequency = <50000000>;
			clock-output-names = "core";
			#clock-cells = <0>;
			u-boot,dm-pre-reloc;
		};

		serial@ffe7014000 {
			compatible = "snps,dw-apb-uart";
			reg = <0xff 0xe7014000 0x0 0x400>;
			clocks = <&dummy_apb>;
			clock-frequency = <50000000>;
			clock-names = "baudclk";
			reg-shift = <2>;
			reg-io-width = <4>;
			u-boot,dm-pre-reloc;
		};

		gmac: ethernet@ffe7070000 {
			compatible = "snps,dwmac";
			reg = <0xff 0xe7070000 0x0 0x2000>;
			clocks = <&dummy_apb>;
			clock-names = "stmmaceth";
			snps,pbl = <32>;
			snps,fixed-burst;

			max-speed = <100>;
			phy-mode = "mii";
			phy-handle = <&phy_88E1111>;
			mdio0 {
				#address-cells = <1>;
				#size-cells = <0>;
				compatible = "snps,dwmac-mdio";

				phy_88E1111: ethernet-phy@0 {
					reg = <0x0 0x0>;
				};
			};
		};

		emmc: sdhci@ffe7080000 {
			compatible = "snps,dwcmshc-sdhci";
			reg = <0xff 0xe7080000 0x0 0x10000>;
			index = <0x0>;
			clocks = <&dummy_ahb>;
			clock-frequency = <50000000>;
			clock-names = "core";
			max-frequency = <20000000>;
			non-removable;
			no-sdio;
			no-sd;
			bus-width = <8>;
			fifo-mode;
			u-boot,dm-pre-reloc;
		};

		qspi0: spi@ffea000000 {
			compatible = "snps,dw-apb-ssi-quad";
			reg = <0xff 0xea000000 0x0 0x1000>;
			clocks = <&dummy_apb>;
			num-cs = <1>;
			cs-gpio = <&gpio2_porta 3 0>; // GPIO_ACTIVE_HIGH: 0
			spi-max-frequency = <3125000>;
			#address-cells = <1>;
			#size-cells =<0>;
			spi-flash@0 {
				#address-cells = <1>;
				#size-cells = <1>;
				compatible = "spi-nand";
				spi-tx-bus-width = <4>;
				spi-rx-bus-width = <4>;
				reg = <0>;
			};
		};

		spi0: spi@fff700c000 {
			compatible = "snps,dw-apb-ssi";
			reg = <0xff 0xf700c000 0x0 0x1000>;
			clocks = <&dummy_apb>;
			cs-gpio = <&gpio2_porta 15 2>;
			spi-max-frequency = <12500000>;
			#address-cells = <1>;
			#size-cells = <0>;
			flash@0 {
				compatible = "jedec,spi-nor";
				reg = <0>;
				spi-max-frequency = <12500000>;
			};
		};

		gpio2: gpio@ffe7f34000 {
			compatible = "snps,dw-apb-gpio";
			reg = <0xff 0xe7f34000 0x0 0x1000>;
			clocks = <&dummy_apb>;
			#address-cells = <1>;
			#size-cells = <0>;
			gpio2_porta: gpio-controller@0 {
				compatible = "snps,dw-apb-gpio-port";
				gpio-controller;
				#gpio-cells = <2>;
				snps,nr-gpios = <32>;
				reg = <0>;
			};
		};
	};

	chosen {
		bootargs = "console=ttyS0,115200";
		stdout-path = "/soc/serial@ffe7014000:115200";
	};
};