arch/mips/dts/mscc,ocelot.dtsi

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright (c) 2018 Microsemi Corporation
 */

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	compatible = "mscc,ocelot";

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

		cpu@0 {
			compatible = "mips,mips24KEc";
			device_type = "cpu";
			clocks = <&cpu_clk>;
			reg = <0>;
		};
	};

	aliases {
		serial0 = &uart0;
	};

	cpuintc: interrupt-controller@0 {
		#address-cells = <0>;
		#interrupt-cells = <1>;
		interrupt-controller;
		compatible = "mti,cpu-interrupt-controller";
	};

	cpu_clk: cpu-clock {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <500000000>;
	};

	ahb_clk: ahb-clk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <250000000>;
	};

	ahb {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0 0x70000000 0x2000000>;

		interrupt-parent = <&intc>;

		cpu_ctrl: syscon@0 {
			compatible = "mscc,ocelot-cpu-syscon", "syscon";
			reg = <0x0 0x2c>;
		};

		intc: interrupt-controller@70 {
			compatible = "mscc,ocelot-icpu-intr";
			reg = <0x70 0x70>;
			#interrupt-cells = <1>;
			interrupt-controller;
			interrupt-parent = <&cpuintc>;
			interrupts = <2>;
		};

		uart0: serial@100000 {
			pinctrl-0 = <&uart_pins>;
			pinctrl-names = "default";
			compatible = "ns16550a";
			reg = <0x100000 0x20>;
			interrupts = <6>;
			clocks = <&ahb_clk>;
			reg-io-width = <4>;
			reg-shift = <2>;

			status = "disabled";
		};

		uart2: serial@100800 {
			pinctrl-0 = <&uart2_pins>;
			pinctrl-names = "default";
			compatible = "ns16550a";
			reg = <0x100800 0x20>;
			interrupts = <7>;
			clocks = <&ahb_clk>;
			reg-io-width = <4>;
			reg-shift = <2>;

			status = "disabled";
		};

		spi0: spi-master@101000 {
			#address-cells = <1>;
			#size-cells = <0>;
			compatible = "snps,dw-apb-ssi";
			reg = <0x101000 0x40>;
			num-chipselect = <4>;
			bus-num = <0>;
			reg-io-width = <4>;
			reg-shift = <2>;
			spi-max-frequency = <18000000>; /* input clock */
			clocks = <&ahb_clk>;

			status = "disabled";
		};

		reset@1070008 {
			compatible = "mscc,ocelot-chip-reset";
			reg = <0x1070008 0x4>;
		};

		gpio: pinctrl@1070034 {
			compatible = "mscc,ocelot-pinctrl";
			reg = <0x1070034 0x68>;
			gpio-controller;
			#gpio-cells = <2>;
			gpio-ranges = <&gpio 0 0 22>;

			uart_pins: uart-pins {
				pins = "GPIO_6", "GPIO_7";
				function = "uart";
			};

			uart2_pins: uart2-pins {
				pins = "GPIO_12", "GPIO_13";
				function = "uart2";
			};

			spi_cs1_pin: spi-cs1-pin {
				pins = "GPIO_8";
				function = "si";
			};

			spi_cs2_pin: spi-cs2-pin {
				pins = "GPIO_9";
				function = "si";
			};

			spi_cs3_pin: spi-cs3-pin {
				pins = "GPIO_16";
				function = "si";
			};

			spi_cs4_pin: spi-cs4-pin {
				pins = "GPIO_17";
				function = "si";
			};
		};
	};
};