xref: /freebsd-src/sys/contrib/device-tree/src/mips/mscc/luton.dtsi (revision 5def4c47d4bd90b209b9b4a4ba9faec15846d8fd)

// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Copyright (c) 2020 Microsemi Corporation */

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

	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 {
		#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 = <416666666>;
	};

	ahb_clk: ahb-clk {
		compatible = "fixed-factor-clock";
		#clock-cells = <0>;
		clocks = <&cpu_clk>;
		clock-div = <2>;
		clock-mult = <1>;
	};

	ahb@60000000 {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0 0x60000000 0x20000000>;

		interrupt-parent = <&intc>;

		cpu_ctrl: syscon@10000000 {
			compatible = "mscc,ocelot-cpu-syscon", "syscon";
			reg = <0x10000000 0x2c>;
		};

		intc: interrupt-controller@10000084 {
			compatible = "mscc,luton-icpu-intr";
			reg = <0x10000084 0x70>;
			#interrupt-cells = <1>;
			interrupt-controller;
			interrupt-parent = <&cpuintc>;
			interrupts = <2>;
		};

		uart0: serial@10100000 {
			pinctrl-0 = <&uart_pins>;
			pinctrl-names = "default";
			compatible = "ns16550a";
			reg = <0x10100000 0x20>;
			interrupts = <6>;
			clocks = <&ahb_clk>;
			reg-io-width = <4>;
			reg-shift = <2>;

			status = "disabled";
		};

		i2c0: i2c@10100400 {
			compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
			pinctrl-0 = <&i2c_pins>;
			pinctrl-names = "default";
			reg = <0x10100400 0x100>, <0x100002a4 0x8>;
			#address-cells = <1>;
			#size-cells = <0>;
			interrupts = <11>;
			clocks = <&ahb_clk>;

			status = "disabled";
		};

		gpio: pinctrl@70068 {
			compatible = "mscc,luton-pinctrl";
			reg = <0x70068 0x28>;
			gpio-controller;
			#gpio-cells = <2>;
			gpio-ranges = <&gpio 0 0 32>;
			interrupt-controller;
			interrupts = <13>;
			#interrupt-cells = <2>;

			i2c_pins: i2c-pins {
				pins = "GPIO_5", "GPIO_6";
				function = "twi";
			};

			uart_pins: uart-pins {
				pins = "GPIO_30", "GPIO_31";
				function = "uart";
			};

		};
	};
};