1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Copyright (c) 2020 Microsemi Corporation
4 */
5
6 #include "serval.dtsi"
7
8 / {
9 aliases {
10 serial0 = &uart0;
11 i2c104 = &i2c104;
12 i2c105 = &i2c105;
13 i2c106 = &i2c106;
14 i2c107 = &i2c107;
15 i2c108 = &i2c108;
16 i2c109 = &i2c109;
17 };
18
19 chosen {
20 stdout-path = "serial0:115200n8";
21 };
22
23 i2c0_imux: i2c0-imux {
24 compatible = "i2c-mux-pinctrl";
25 #address-cells = <1>;
26 #size-cells = <0>;
27 i2c-parent = <&i2c0>;
28 pinctrl-names =
29 "i2c104", "i2c105", "i2c106", "i2c107",
30 "i2c108", "i2c109", "idle";
31 pinctrl-0 = <&i2cmux_0>;
32 pinctrl-1 = <&i2cmux_1>;
33 pinctrl-2 = <&i2cmux_2>;
34 pinctrl-3 = <&i2cmux_3>;
35 pinctrl-4 = <&i2cmux_4>;
36 pinctrl-5 = <&i2cmux_5>;
37 pinctrl-6 = <&i2cmux_pins_i>;
38 i2c104: i2c_sfp0@0 {
39 reg = <0>;
40 #address-cells = <1>;
41 #size-cells = <0>;
42 };
43 i2c105: i2c_sfp1@1 {
44 reg = <1>;
45 #address-cells = <1>;
46 #size-cells = <0>;
47 };
48 i2c106: i2c_sfp2@2 {
49 reg = <2>;
50 #address-cells = <1>;
51 #size-cells = <0>;
52 };
53 i2c107: i2c_sfp3@3 {
54 reg = <3>;
55 #address-cells = <1>;
56 #size-cells = <0>;
57 };
58 i2c108: i2c_sfp4@4 {
59 reg = <4>;
60 #address-cells = <1>;
61 #size-cells = <0>;
62 };
63 i2c109: i2c_sfp5@5 {
64 reg = <5>;
65 #address-cells = <1>;
66 #size-cells = <0>;
67 };
68 };
69
70 };
71
72 &uart0 {
73 status = "okay";
74 };
75
76 &uart2 {
77 status = "okay";
78 };
79
80 &gpio {
81 i2c_pins: i2c-pins {
82 pins = "GPIO_7"; /* No "default" scl for i2c0 */
83 function = "twi";
84 };
85 i2cmux_pins_i: i2cmux-pins {
86 pins = "GPIO_11", "GPIO_12", "GPIO_18", "GPIO_19",
87 "GPIO_20", "GPIO_21";
88 function = "twi_scl_m";
89 output-low;
90 };
91 i2cmux_0: i2cmux-0-pins {
92 pins = "GPIO_11";
93 function = "twi_scl_m";
94 output-high;
95 };
96 i2cmux_1: i2cmux-1-pins {
97 pins = "GPIO_12";
98 function = "twi_scl_m";
99 output-high;
100 };
101 i2cmux_2: i2cmux-2-pins {
102 pins = "GPIO_18";
103 function = "twi_scl_m";
104 output-high;
105 };
106 i2cmux_3: i2cmux-3-pins {
107 pins = "GPIO_19";
108 function = "twi_scl_m";
109 output-high;
110 };
111 i2cmux_4: i2cmux-4-pins {
112 pins = "GPIO_20";
113 function = "twi_scl_m";
114 output-high;
115 };
116 i2cmux_5: i2cmux-5-pins {
117 pins = "GPIO_21";
118 function = "twi_scl_m";
119 output-high;
120 };
121 };
122
123 &i2c0 {
124 status = "okay";
125 i2c-sda-hold-time-ns = <300>;
126 };
127
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