u-boot/arch/riscv/dts/ae350_32.dts

/dts-v1/;

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	compatible = "andestech,a25";
	model = "andestech,a25";

	aliases {
		uart0 = &serial0;
		spi0 = &spi;
	};

	chosen {
		bootargs = "console=ttyS0,38400n8  debug loglevel=7";
		stdout-path = "uart0:38400n8";
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		timebase-frequency = <60000000>;
		CPU0: cpu@0 {
			device_type = "cpu";
			reg = <0>;
			status = "okay";
			compatible = "riscv";
			riscv,isa = "rv32imafdc";
			riscv,priv-major = <1>;
			riscv,priv-minor = <10>;
			mmu-type = "riscv,sv32";
			clock-frequency = <60000000>;
			i-cache-size = <0x8000>;
			i-cache-line-size = <32>;
			d-cache-size = <0x8000>;
			d-cache-line-size = <32>;
			next-level-cache = <&L2>;
			CPU0_intc: interrupt-controller {
				#interrupt-cells = <1>;
				interrupt-controller;
				compatible = "riscv,cpu-intc";
			};
		};
		CPU1: cpu@1 {
			device_type = "cpu";
			reg = <1>;
			status = "okay";
			compatible = "riscv";
			riscv,isa = "rv32imafdc";
			riscv,priv-major = <1>;
			riscv,priv-minor = <10>;
			mmu-type = "riscv,sv32";
			clock-frequency = <60000000>;
			i-cache-size = <0x8000>;
			i-cache-line-size = <32>;
			d-cache-size = <0x8000>;
			d-cache-line-size = <32>;
			next-level-cache = <&L2>;
			CPU1_intc: interrupt-controller {
				#interrupt-cells = <1>;
				interrupt-controller;
				compatible = "riscv,cpu-intc";
			};
		};

		L2: l2-cache@e0500000 {
			compatible = "cache";
			cache-level = <2>;
			cache-size = <0x40000>;
			reg = <0x0 0xe0500000 0x0 0x40000>;
		};
	};

	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x40000000>;
	};

	soc {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "simple-bus";
		ranges;

		plic0: interrupt-controller@e4000000 {
			compatible = "riscv,plic0";
			#address-cells = <1>;
			#interrupt-cells = <1>;
			interrupt-controller;
			reg = <0xe4000000 0x2000000>;
			riscv,ndev=<71>;
			interrupts-extended = <&CPU0_intc 11 &CPU0_intc 9 &CPU1_intc 11 &CPU1_intc 9>;
		};

		plic1: interrupt-controller@e6400000 {
			compatible = "riscv,plic1";
			#address-cells = <1>;
			#interrupt-cells = <1>;
			interrupt-controller;
			reg = <0xe6400000 0x400000>;
			riscv,ndev=<2>;
			interrupts-extended = <&CPU0_intc 3 &CPU1_intc 3>;
		};

		plmt0@e6000000 {
			compatible = "riscv,plmt0";
			interrupts-extended = <&CPU0_intc 7 &CPU1_intc 7>;
			reg = <0xe6000000 0x100000>;
		};
	};

	spiclk: virt_100mhz {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <100000000>;
	};

	timer0: timer@f0400000 {
		compatible = "andestech,atcpit100";
		reg = <0xf0400000 0x1000>;
		clock-frequency = <60000000>;
		interrupts = <3 4>;
		interrupt-parent = <&plic0>;
	};

	serial0: serial@f0300000 {
		compatible = "andestech,uart16550", "ns16550a";
		reg = <0xf0300000 0x1000>;
		interrupts = <9 4>;
		clock-frequency = <19660800>;
		reg-shift = <2>;
		reg-offset = <32>;
		no-loopback-test = <1>;
		interrupt-parent = <&plic0>;
	};

	mac0: mac@e0100000 {
		compatible = "andestech,atmac100";
		reg = <0xe0100000 0x1000>;
		interrupts = <19 4>;
		interrupt-parent = <&plic0>;
	};

	mmc0: mmc@f0e00000 {
		compatible = "andestech,atfsdc010";
		max-frequency = <100000000>;
		clock-freq-min-max = <400000 100000000>;
		fifo-depth = <0x10>;
		reg = <0xf0e00000 0x1000>;
		interrupts = <18 4>;
		cap-sd-highspeed;
		interrupt-parent = <&plic0>;
	};

	dma0: dma@f0c00000 {
		compatible = "andestech,atcdmac300";
		reg = <0xf0c00000 0x1000>;
		interrupts = <10 4 64 4 65 4 66 4 67 4 68 4 69 4 70 4 71 4>;
		dma-channels = <8>;
		interrupt-parent = <&plic0>;
	};

	lcd0: lcd@e0200000 {
		compatible = "andestech,atflcdc100";
		reg = <0xe0200000 0x1000>;
		interrupts = <20 4>;
		interrupt-parent = <&plic0>;
	};

	smc0: smc@e0400000 {
		compatible = "andestech,atfsmc020";
		reg = <0xe0400000 0x1000>;
	};

	snd0: snd@f0d00000 {
		compatible = "andestech,atfac97";
		reg = <0xf0d00000 0x1000>;
		interrupts = <17 4>;
		interrupt-parent = <&plic0>;
	};

	pmu {
		compatible = "riscv,base-pmu";
	};

	virtio_mmio@fe007000 {
		interrupts = <0x17 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe007000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe006000 {
		interrupts = <0x16 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe006000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe005000 {
		interrupts = <0x15 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe005000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe004000 {
		interrupts = <0x14 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe004000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe003000 {
		interrupts = <0x13 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe003000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe002000 {
		interrupts = <0x12 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe002000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe001000 {
		interrupts = <0x11 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe001000 0x1000>;
		compatible = "virtio,mmio";
	};

	virtio_mmio@fe000000 {
		interrupts = <0x10 0x4>;
		interrupt-parent = <0x2>;
		reg = <0xfe000000 0x1000>;
		compatible = "virtio,mmio";
	};

	nor@0,0 {
		compatible = "cfi-flash";
		reg = <0x88000000 0x1000>;
		bank-width = <2>;
		device-width = <1>;
	};

	spi: spi@f0b00000 {
		compatible = "andestech,atcspi200";
		reg = <0xf0b00000 0x1000>;
		#address-cells = <1>;
		#size-cells = <0>;
		num-cs = <1>;
		clocks = <&spiclk>;
		interrupts = <4 4>;
		interrupt-parent = <&plic0>;
		flash@0 {
			compatible = "jedec,spi-nor";
			spi-max-frequency = <50000000>;
			reg = <0>;
			spi-cpol;
			spi-cpha;
		};
	};
};