linux-riscv reference: mysoc.dts

mysoc.dts

/dts-v1/;

/ {
        #address-cells = <2>;
        #size-cells = <2>;

        cpus {
                #address-cells = <1>;
                #size-cells = <0>;
                timebase-frequency = <9330000>;

                cpu@0 {
                        device_type = "cpu";
                        reg = <0>;
                        status = "okay";
                        compatible = "riscv";
                        riscv,isa = "rv64imafdc";
                        mmu-type = "riscv,sv48";
                        clock-frequency = <1500000000>;

                        cpu0_intc: interrupt-controller {
                                #interrupt-cells = <1>;
                                compatible = "riscv,cpu-intc";
                                interrupt-controller;
                        };
                };
        };

        memory@8000000000 {
                device_type = "memory";
                reg = <0x80 0 0x00000000 0x80000000>;
        };

	clocks {
                clk_200mhz: clock {
                        compatible = "fixed-clock";
                        #clock-cells = <0>;
                        clock-frequency = <200000000>;
                };
	};

        soc {
                #address-cells = <2>;
                #size-cells = <2>;
                compatible = "mycorp,mysoc1-dwcmshc", "simple-bus";
                ranges;

                clint@2000000 {
                        compatible = "sifive,clint0";
                        reg = <0 0x2000000 0 0xc0000>;
                        interrupts-extended = <&cpu0_intc 3 &cpu0_intc 7>;
                };

                plic0: interrupt-controller@10000000 {
			#address-cells = <0>;
                        #interrupt-cells = <1>;
                        compatible = "sifive,plic-1.0.0";
                        reg = <0 0x10000000 0 0x2000000>;
                        riscv,ndev = <31>;
                        interrupt-controller;
                        interrupts-extended = <&cpu0_intc 9 &cpu0_intc 11>;
                };

                uart0: serial@12007000 {
                        interrupt-parent = <&plic0>;
                        compatible = "ns16550a";
                        reg = <0 0x12007000 0 0x1000>;
                        reg-shift = <2>;
                        reg-io-width = <4>;
                        clock-frequency = <24162500>;
                        current-speed = <115200>;
                        interrupts = <15>;
                };

                uart1: serial@12002000 {
                        interrupt-parent = <&plic0>;
                        compatible = "ns16550a";
                        reg = <0 0x12002000 0 0x1000>;
                        reg-shift = <2>;
                        reg-io-width = <4>;
                        clock-frequency = <24162500>;
                        current-speed = <115200>;
                        interrupts = <3>;
                };

		mmc0: mmc@18080000 {
		        compatible = "mycorp,mysoc1-dwcmshc";
		        reg = <0 0x18080000 0 0x1000>;
			clocks = <&clk_200mhz>;
			clock-names = "core";
		        bus-width = <8>;
                        interrupt-parent = <&plic0>;
		        interrupts = <28>;
                        non-removable;
                        mmc-ddr-1_8v;
			no-sdio;
			no-sd;
		};
	};

       chosen {
                linux,initrd-start = <0x00000080 0x7e6372b4>;
                linux,initrd-end   = <0x00000080 0x80000000>;
                bootargs = "root=/dev/ram rw earlycon=sbi console=ttyS0,115200";
        };
};