1// SPDX-License-Identifier: (GPL-2.0 OR MIT)
2/* Copyright (c) 2020 Microsemi Corporation */
3
4/ {
5	#address-cells = <1>;
6	#size-cells = <1>;
7	compatible = "mscc,luton";
8
9	cpus {
10		#address-cells = <1>;
11		#size-cells = <0>;
12
13		cpu@0 {
14			compatible = "mips,mips24KEc";
15			device_type = "cpu";
16			clocks = <&cpu_clk>;
17			reg = <0>;
18		};
19	};
20
21	aliases {
22		serial0 = &uart0;
23	};
24
25	cpuintc: interrupt-controller {
26		#address-cells = <0>;
27		#interrupt-cells = <1>;
28		interrupt-controller;
29		compatible = "mti,cpu-interrupt-controller";
30	};
31
32	cpu_clk: cpu-clock {
33		compatible = "fixed-clock";
34		#clock-cells = <0>;
35		clock-frequency = <416666666>;
36	};
37
38	ahb_clk: ahb-clk {
39		compatible = "fixed-factor-clock";
40		#clock-cells = <0>;
41		clocks = <&cpu_clk>;
42		clock-div = <2>;
43		clock-mult = <1>;
44	};
45
46	ahb@60000000 {
47		compatible = "simple-bus";
48		#address-cells = <1>;
49		#size-cells = <1>;
50		ranges = <0 0x60000000 0x20000000>;
51
52		interrupt-parent = <&intc>;
53
54		cpu_ctrl: syscon@10000000 {
55			compatible = "mscc,ocelot-cpu-syscon", "syscon";
56			reg = <0x10000000 0x2c>;
57		};
58
59		intc: interrupt-controller@10000084 {
60			compatible = "mscc,luton-icpu-intr";
61			reg = <0x10000084 0x70>;
62			#interrupt-cells = <1>;
63			interrupt-controller;
64			interrupt-parent = <&cpuintc>;
65			interrupts = <2>;
66		};
67
68		uart0: serial@10100000 {
69			pinctrl-0 = <&uart_pins>;
70			pinctrl-names = "default";
71			compatible = "ns16550a";
72			reg = <0x10100000 0x20>;
73			interrupts = <6>;
74			clocks = <&ahb_clk>;
75			reg-io-width = <4>;
76			reg-shift = <2>;
77
78			status = "disabled";
79		};
80
81		i2c0: i2c@10100400 {
82			compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
83			pinctrl-0 = <&i2c_pins>;
84			pinctrl-names = "default";
85			reg = <0x10100400 0x100>, <0x100002a4 0x8>;
86			#address-cells = <1>;
87			#size-cells = <0>;
88			interrupts = <11>;
89			clocks = <&ahb_clk>;
90
91			status = "disabled";
92		};
93
94		gpio: pinctrl@70068 {
95			compatible = "mscc,luton-pinctrl";
96			reg = <0x70068 0x28>;
97			gpio-controller;
98			#gpio-cells = <2>;
99			gpio-ranges = <&gpio 0 0 32>;
100			interrupt-controller;
101			interrupts = <13>;
102			#interrupt-cells = <2>;
103
104			i2c_pins: i2c-pins {
105				pins = "GPIO_5", "GPIO_6";
106				function = "twi";
107			};
108
109			uart_pins: uart-pins {
110				pins = "GPIO_30", "GPIO_31";
111				function = "uart";
112			};
113
114		};
115	};
116};
117