1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Copyright (c) 2018 Microsemi Corporation
4 */
5
6 / {
7 #address-cells = <1>;
8 #size-cells = <1>;
9 compatible = "mscc,serval";
10
11 cpus {
12 #address-cells = <1>;
13 #size-cells = <0>;
14
15 cpu@0 {
16 compatible = "mips,mips24KEc";
17 device_type = "cpu";
18 clocks = <&cpu_clk>;
19 reg = <0>;
20 };
21 };
22
23 aliases {
24 serial0 = &uart0;
25 gpio0 = &gpio;
26 };
27
28 cpuintc: interrupt-controller {
29 #address-cells = <0>;
30 #interrupt-cells = <1>;
31 interrupt-controller;
32 compatible = "mti,cpu-interrupt-controller";
33 };
34
35 cpu_clk: cpu-clock {
36 compatible = "fixed-clock";
37 #clock-cells = <0>;
38 clock-frequency = <416666666>;
39 };
40
41 ahb_clk: ahb-clk {
42 compatible = "fixed-factor-clock";
43 #clock-cells = <0>;
44 clocks = <&cpu_clk>;
45 clock-div = <2>;
46 clock-mult = <1>;
47 };
48
49 ahb: ahb {
50 compatible = "simple-bus";
51 #address-cells = <1>;
52 #size-cells = <1>;
53 ranges;
54
55 interrupt-parent = <&intc>;
56
57 cpu_ctrl: syscon@70000000 {
58 compatible = "mscc,ocelot-cpu-syscon", "syscon";
59 reg = <0x70000000 0x2c>;
60 };
61
62 intc: interrupt-controller@70000070 {
63 compatible = "mscc,serval-icpu-intr";
64 reg = <0x70000070 0x70>;
65 #interrupt-cells = <1>;
66 interrupt-controller;
67 interrupt-parent = <&cpuintc>;
68 interrupts = <2>;
69 };
70
71 uart0: serial@70100000 {
72 pinctrl-0 = <&uart_pins>;
73 pinctrl-names = "default";
74 compatible = "ns16550a";
75 reg = <0x70100000 0x20>;
76 interrupts = <6>;
77 clocks = <&ahb_clk>;
78 reg-io-width = <4>;
79 reg-shift = <2>;
80
81 status = "disabled";
82 };
83
84 uart2: serial@70100800 {
85 pinctrl-0 = <&uart2_pins>;
86 pinctrl-names = "default";
87 compatible = "ns16550a";
88 reg = <0x70100800 0x20>;
89 interrupts = <7>;
90 clocks = <&ahb_clk>;
91 reg-io-width = <4>;
92 reg-shift = <2>;
93
94 status = "disabled";
95 };
96
97 gpio: pinctrl@71070034 {
98 compatible = "mscc,serval-pinctrl";
99 reg = <0x71070034 0x28>;
100 gpio-controller;
101 #gpio-cells = <2>;
102 gpio-ranges = <&gpio 0 0 22>;
103
104 sgpio_pins: sgpio-pins {
105 pins = "GPIO_0", "GPIO_2", "GPIO_3", "GPIO_1";
106 function = "sg0";
107 };
108
109 i2c_pins: i2c-pins {
110 pins = "GPIO_6", "GPIO_7";
111 function = "twi";
112 };
113
114 uart_pins: uart-pins {
115 pins = "GPIO_26", "GPIO_27";
116 function = "uart";
117 };
118
119 uart2_pins: uart2-pins {
120 pins = "GPIO_13", "GPIO_14";
121 function = "uart2";
122 };
123
124 cs1_pins: cs1-pins {
125 pins = "GPIO_8";
126 function = "si";
127 };
128
129 irqext0_pins: irqext0-pins {
130 pins = "GPIO_28";
131 function = "irq0";
132 };
133
134 irqext1_pins: irqext1-pins {
135 pins = "GPIO_29";
136 function = "irq1";
137 };
138 };
139
140 i2c0: i2c@70100400 {
141 compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
142 status = "disabled";
143 pinctrl-0 = <&i2c_pins>;
144 pinctrl-names = "default";
145 reg = <0x70100400 0x100>, <0x70000190 0x8>;
146 #address-cells = <1>;
147 #size-cells = <0>;
148 interrupts = <8>;
149 clock-frequency = <100000>;
150 clocks = <&ahb_clk>;
151 };
152 };
153 };
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