1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2015 Microchip Technology Inc. All rights reserved.
4 */
5
6 /dts-v1/;
7
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/interrupt-controller/irq.h>
10
11 #include "pic32mzda.dtsi"
12
13 / {
14 compatible = "microchip,pic32mzda-sk", "microchip,pic32mzda";
15 model = "Microchip PIC32MZDA Starter Kit";
16
17 memory {
18 device_type = "memory";
19 reg = <0x08000000 0x08000000>;
20 };
21
22 chosen {
23 bootargs = "earlyprintk=ttyPIC1,115200n8r console=ttyPIC1,115200n8";
24 };
25
26 leds0 {
27 compatible = "gpio-leds";
28 pinctrl-names = "default";
29 pinctrl-0 = <&user_leds_s0>;
30
31 led-1 {
32 label = "pic32mzda_sk:red:led1";
33 gpios = <&gpio7 0 GPIO_ACTIVE_HIGH>;
34 linux,default-trigger = "heartbeat";
35 };
36
37 led-2 {
38 label = "pic32mzda_sk:yellow:led2";
39 gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
40 linux,default-trigger = "mmc0";
41 };
42
43 led-3 {
44 label = "pic32mzda_sk:green:led3";
45 gpios = <&gpio7 2 GPIO_ACTIVE_HIGH>;
46 default-state = "on";
47 };
48 };
49
50 keys0 {
51 compatible = "gpio-keys";
52 pinctrl-0 = <&user_buttons_s0>;
53 pinctrl-names = "default";
54
55 button-1 {
56 label = "ESC";
57 linux,code = <1>;
58 gpios = <&gpio1 12 0>;
59 };
60
61 button-2 {
62 label = "Home";
63 linux,code = <102>;
64 gpios = <&gpio1 13 0>;
65 };
66
67 button-3 {
68 label = "Menu";
69 linux,code = <139>;
70 gpios = <&gpio1 14 0>;
71 };
72 };
73 };
74
75 &uart2 {
76 pinctrl-names = "default";
77 pinctrl-0 = <&pinctrl_uart2>;
78 status = "okay";
79 };
80
81 &uart4 {
82 pinctrl-names = "default";
83 pinctrl-0 = <&pinctrl_uart4>;
84 status = "okay";
85 };
86
87 &sdhci {
88 pinctrl-names = "default";
89 pinctrl-0 = <&pinctrl_sdhc1>;
90 status = "okay";
91 assigned-clocks = <&rootclk REF2CLK>, <&rootclk REF4CLK>,
92 <&rootclk REF5CLK>;
93 assigned-clock-rates = <50000000>, <25000000>, <40000000>;
94 };
95
96 &pic32_pinctrl {
97
98 pinctrl_sdhc1: sdhc1_pins0 {
99 pins = "A6", "D4", "G13", "G12", "G14", "A7", "A0";
100 microchip,digital;
101 };
102
103 user_leds_s0: user_leds_s0 {
104 pins = "H0", "H1", "H2";
105 output-low;
106 microchip,digital;
107 };
108
109 user_buttons_s0: user_buttons_s0 {
110 pins = "B12", "B13", "B14";
111 microchip,digital;
112 input-enable;
113 bias-pull-up;
114 };
115
116 pinctrl_uart2: pinctrl_uart2 {
117 uart2-tx {
118 pins = "G9";
119 function = "U2TX";
120 microchip,digital;
121 output-high;
122 };
123 uart2-rx {
124 pins = "B0";
125 function = "U2RX";
126 microchip,digital;
127 input-enable;
128 };
129 };
130
131 pinctrl_uart4: uart4-0 {
132 uart4-tx {
133 pins = "C3";
134 function = "U4TX";
135 microchip,digital;
136 output-high;
137 };
138 uart4-rx {
139 pins = "E8";
140 function = "U4RX";
141 microchip,digital;
142 input-enable;
143 };
144 };
145 };
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