1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd
4 *
5 */
6
7 /dts-v1/;
8 #include <dt-bindings/input/input.h>
9 #include "rk3308.dtsi"
10
11 / {
12 model = "Rockchip RK3308 EVB";
13 compatible = "rockchip,rk3308-evb", "rockchip,rk3308";
14
15 chosen {
16 stdout-path = "serial4:1500000n8";
17 };
18
19 adc-keys0 {
20 compatible = "adc-keys";
21 io-channels = <&saradc 0>;
22 io-channel-names = "buttons";
23 poll-interval = <100>;
24 keyup-threshold-microvolt = <1800000>;
25
26 button-func {
27 linux,code = <KEY_FN>;
28 label = "function";
29 press-threshold-microvolt = <18000>;
30 };
31 };
32
33 adc-keys1 {
34 compatible = "adc-keys";
35 io-channels = <&saradc 1>;
36 io-channel-names = "buttons";
37 poll-interval = <100>;
38 keyup-threshold-microvolt = <1800000>;
39
40 button-esc {
41 linux,code = <KEY_MICMUTE>;
42 label = "micmute";
43 press-threshold-microvolt = <1130000>;
44 };
45
46 button-home {
47 linux,code = <KEY_MODE>;
48 label = "mode";
49 press-threshold-microvolt = <901000>;
50 };
51
52 button-menu {
53 linux,code = <KEY_PLAY>;
54 label = "play";
55 press-threshold-microvolt = <624000>;
56 };
57
58 button-down {
59 linux,code = <KEY_VOLUMEDOWN>;
60 label = "volume down";
61 press-threshold-microvolt = <300000>;
62 };
63
64 button-up {
65 linux,code = <KEY_VOLUMEUP>;
66 label = "volume up";
67 press-threshold-microvolt = <18000>;
68 };
69 };
70
71 gpio-keys {
72 compatible = "gpio-keys";
73 autorepeat;
74
75 pinctrl-names = "default";
76 pinctrl-0 = <&pwr_key>;
77
78 key-power {
79 gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_LOW>;
80 linux,code = <KEY_POWER>;
81 label = "GPIO Key Power";
82 debounce-interval = <100>;
83 wakeup-source;
84 };
85 };
86
87 vcc12v_dcin: vcc12v-dcin {
88 compatible = "regulator-fixed";
89 regulator-name = "vcc12v_dcin";
90 regulator-min-microvolt = <12000000>;
91 regulator-max-microvolt = <12000000>;
92 regulator-always-on;
93 regulator-boot-on;
94 };
95
96 vcc5v0_sys: vcc5v0-sys {
97 compatible = "regulator-fixed";
98 regulator-name = "vcc5v0_sys";
99 regulator-min-microvolt = <5000000>;
100 regulator-max-microvolt = <5000000>;
101 regulator-always-on;
102 regulator-boot-on;
103 vin-supply = <&vcc12v_dcin>;
104 };
105
106 vccio_sdio: vcc_1v8: vcc-1v8 {
107 compatible = "regulator-fixed";
108 regulator-name = "vcc_1v8";
109 regulator-min-microvolt = <1800000>;
110 regulator-max-microvolt = <1800000>;
111 regulator-always-on;
112 regulator-boot-on;
113 vin-supply = <&vcc_io>;
114 };
115
116 vcc_ddr: vcc-ddr {
117 compatible = "regulator-fixed";
118 regulator-name = "vcc_ddr";
119 regulator-min-microvolt = <1500000>;
120 regulator-max-microvolt = <1500000>;
121 regulator-always-on;
122 regulator-boot-on;
123 vin-supply = <&vcc5v0_sys>;
124 };
125
126 vcc_io: vcc-io {
127 compatible = "regulator-fixed";
128 regulator-name = "vcc_io";
129 regulator-min-microvolt = <3300000>;
130 regulator-max-microvolt = <3300000>;
131 regulator-always-on;
132 regulator-boot-on;
133 vin-supply = <&vcc5v0_sys>;
134 };
135
136 vccio_flash: vccio-flash {
137 compatible = "regulator-fixed";
138 regulator-name = "vccio_flash";
139 regulator-min-microvolt = <3300000>;
140 regulator-max-microvolt = <3300000>;
141 regulator-always-on;
142 regulator-boot-on;
143 vin-supply = <&vcc_io>;
144 };
145
146 vcc5v0_host: vcc5v0-host {
147 compatible = "regulator-fixed";
148 gpio = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
149 enable-active-high;
150 pinctrl-names = "default";
151 pinctrl-0 = <&usb_drv>;
152 regulator-name = "vbus_host";
153 vin-supply = <&vcc5v0_sys>;
154 };
155
156 vdd_core: vdd-core {
157 compatible = "pwm-regulator";
158 pwms = <&pwm0 0 5000 1>;
159 regulator-name = "vdd_core";
160 regulator-min-microvolt = <827000>;
161 regulator-max-microvolt = <1340000>;
162 regulator-always-on;
163 regulator-boot-on;
164 regulator-settling-time-up-us = <250>;
165 pwm-supply = <&vcc5v0_sys>;
166 };
167
168 vdd_log: vdd-log {
169 compatible = "regulator-fixed";
170 regulator-name = "vdd_log";
171 regulator-min-microvolt = <1050000>;
172 regulator-max-microvolt = <1050000>;
173 regulator-always-on;
174 regulator-boot-on;
175 vin-supply = <&vcc5v0_sys>;
176 };
177
178 vdd_1v0: vdd-1v0 {
179 compatible = "regulator-fixed";
180 regulator-name = "vdd_1v0";
181 regulator-min-microvolt = <1000000>;
182 regulator-max-microvolt = <1000000>;
183 regulator-always-on;
184 regulator-boot-on;
185 vin-supply = <&vcc5v0_sys>;
186 };
187 };
188
189 &cpu0 {
190 cpu-supply = <&vdd_core>;
191 };
192
193 &saradc {
194 status = "okay";
195 vref-supply = <&vcc_1v8>;
196 };
197
198 &pinctrl {
199 pinctrl-names = "default";
200 pinctrl-0 = <&rtc_32k>;
201
202 buttons {
203 pwr_key: pwr-key {
204 rockchip,pins = <0 RK_PA6 0 &pcfg_pull_up>;
205 };
206 };
207
208 usb {
209 usb_drv: usb-drv {
210 rockchip,pins = <0 RK_PC5 0 &pcfg_pull_none>;
211 };
212 };
213
214 sdio-pwrseq {
215 wifi_enable_h: wifi-enable-h {
216 rockchip,pins = <0 RK_PA2 0 &pcfg_pull_none>;
217 };
218 };
219 };
220
221 &pwm0 {
222 status = "okay";
223 pinctrl-0 = <&pwm0_pin_pull_down>;
224 };
225
226 &uart4 {
227 pinctrl-names = "default";
228 pinctrl-0 = <&uart4_xfer>;
229 status = "okay";
230 };
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