1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3 * Device Tree Source for A20-SOM204-EVB Board
4 *
5 * Copyright (C) 2018 Olimex Ltd.
6 * Author: Stefan Mavrodiev <stefan@olimex.co
7 */
8
9 /dts-v1/;
10 #include "sun7i-a20.dtsi"
11 #include "sunxi-common-regulators.dtsi"
12
13
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/interrupt-controller/irq
16 #include <dt-bindings/pwm/pwm.h>
17
18 / {
19 model = "Olimex A20-SOM204-EVB";
20 compatible = "olimex,a20-olimex-som204
21
22 aliases {
23 serial0 = &uart0;
24 serial1 = &uart4;
25 serial2 = &uart7;
26 spi0 = &spi1;
27 spi1 = &spi2;
28 ethernet1 = &rtl8723bs;
29 };
30
31 chosen {
32 stdout-path = "serial0:115200n
33 };
34
35 hdmi-connector {
36 compatible = "hdmi-connector";
37 type = "a";
38
39 port {
40 hdmi_con_in: endpoint
41 remote-endpoin
42 };
43 };
44 };
45
46 leds {
47 compatible = "gpio-leds";
48
49 led-0 {
50 label = "a20-som204-ev
51 gpios = <&pio 8 0 GPIO
52 default-state = "on";
53 };
54
55 led-1 {
56 label = "a20-som204-ev
57 gpios = <&pio 8 10 GPI
58 default-state = "on";
59 };
60
61 led-2 {
62 label = "a20-som204-ev
63 gpios = <&pio 8 11 GPI
64 default-state = "on";
65 };
66 };
67
68 rtl_pwrseq: pwrseq-0 {
69 compatible = "mmc-pwrseq-simpl
70 reset-gpios = <&pio 6 9 GPIO_A
71 };
72 };
73
74 &ahci {
75 target-supply = <®_ahci_5v>;
76 status = "okay";
77 };
78
79 &can0 {
80 pinctrl-names = "default";
81 pinctrl-0 = <&can_ph_pins>;
82 status = "okay";
83 };
84
85 &codec {
86 status = "okay";
87 };
88
89 &cpu0 {
90 cpu-supply = <®_dcdc2>;
91 };
92
93 &de {
94 status = "okay";
95 };
96
97 &ehci0 {
98 status = "okay";
99 };
100
101 &ehci1 {
102 status = "okay";
103 };
104
105 &gmac {
106 pinctrl-names = "default";
107 pinctrl-0 = <&gmac_rgmii_pins>;
108 phy-handle = <&phy3>;
109 phy-mode = "rgmii";
110 phy-supply = <®_vcc3v3>;
111 status = "okay";
112 };
113
114 &hdmi {
115 status = "okay";
116 };
117
118 &hdmi_out {
119 hdmi_out_con: endpoint {
120 remote-endpoint = <&hdmi_con_i
121 };
122 };
123
124 &i2c0 {
125 status = "okay";
126
127 axp209: pmic@34 {
128 reg = <0x34>;
129 interrupt-parent = <&nmi_intc>
130 interrupts = <0 IRQ_TYPE_LEVEL
131 };
132 };
133
134 /* Exposed to UEXT1 */
135 &i2c1 {
136 status = "okay";
137
138 eeprom: eeprom@50 {
139 compatible = "atmel,24c16";
140 reg = <0x50>;
141 pagesize = <16>;
142 };
143 };
144
145 /* Exposed to UEXT2 */
146 &i2c2 {
147 status = "okay";
148 };
149
150 &ir0 {
151 pinctrl-names = "default";
152 pinctrl-0 = <&ir0_rx_pin>;
153 status = "okay";
154 };
155
156 &gmac_mdio {
157 phy3: ethernet-phy@3 {
158 reg = <3>;
159 reset-gpios = <&pio 0 17 GPIO_
160 reset-assert-us = <10000>;
161 /* wait 1s after reset, otherw
162 reset-deassert-us = <1000000>;
163 };
164 };
165
166 &mmc0 {
167 vmmc-supply = <®_vcc3v3>;
168 bus-width = <4>;
169 cd-gpios = <&pio 7 1 GPIO_ACTIVE_LOW>;
170 status = "okay";
171 };
172
173 &mmc3 {
174 vmmc-supply = <®_vcc3v3>;
175 mmc-pwrseq = <&rtl_pwrseq>;
176 bus-width = <4>;
177 non-removable;
178 status = "okay";
179
180 rtl8723bs: wifi@1 {
181 reg = <1>;
182 };
183 };
184
185 &ohci0 {
186 status = "okay";
187 };
188
189 &ohci1 {
190 status = "okay";
191 };
192
193 &otg_sram {
194 status = "okay";
195 };
196
197 &pio {
198 uart3_rts_pin: uart3-rts-pin {
199 pins = "PG8";
200 function = "uart3";
201 };
202 };
203
204 #include "axp209.dtsi"
205
206 &ac_power_supply {
207 status = "okay";
208 };
209
210 &battery_power_supply {
211 status = "okay";
212 };
213
214 ®_ahci_5v {
215 gpio = <&pio 2 3 GPIO_ACTIVE_HIGH>;
216 status = "okay";
217 };
218
219 ®_dcdc2 {
220 regulator-always-on;
221 regulator-min-microvolt = <1000000>;
222 regulator-max-microvolt = <1400000>;
223 regulator-name = "vdd-cpu";
224 };
225
226 ®_dcdc3 {
227 regulator-always-on;
228 regulator-min-microvolt = <1000000>;
229 regulator-max-microvolt = <1400000>;
230 regulator-name = "vdd-int-dll";
231 };
232
233 ®_ldo1 {
234 regulator-always-on;
235 regulator-min-microvolt = <1300000>;
236 regulator-max-microvolt = <1300000>;
237 regulator-name = "vdd-rtc";
238 };
239
240 ®_ldo2 {
241 regulator-always-on;
242 regulator-min-microvolt = <3000000>;
243 regulator-max-microvolt = <3000000>;
244 regulator-name = "avcc";
245 };
246
247 ®_ldo4 {
248 regulator-min-microvolt = <3300000>;
249 regulator-max-microvolt = <3300000>;
250 regulator-name = "vcc-pg";
251 };
252
253 ®_usb0_vbus {
254 gpio = <&pio 2 17 GPIO_ACTIVE_HIGH>;
255 status = "okay";
256 };
257
258 ®_usb1_vbus {
259 status = "okay";
260 };
261
262 ®_usb2_vbus {
263 status = "okay";
264 };
265
266 /* Exposed to UEXT1 */
267 &spi1 {
268 pinctrl-names = "default";
269 pinctrl-0 = <&spi1_pi_pins>,
270 <&spi1_cs0_pi_pin>;
271 status = "okay";
272 };
273
274 /* Exposed to UEXT2 */
275 &spi2 {
276 pinctrl-names = "default";
277 pinctrl-0 = <&spi2_pc_pins>,
278 <&spi2_cs0_pc_pin>;
279 status = "okay";
280 };
281
282 &uart0 {
283 pinctrl-names = "default";
284 pinctrl-0 = <&uart0_pb_pins>;
285 status = "okay";
286 };
287
288 /* Used for RTL8723BS bluetooth */
289 &uart3 {
290 pinctrl-names = "default";
291 pinctrl-0 = <&uart3_pg_pins>, <&uart3_
292 status = "okay";
293 };
294
295 /* Exposed to UEXT1 */
296 &uart4 {
297 pinctrl-names = "default";
298 pinctrl-0 = <&uart4_pg_pins>;
299 status = "okay";
300 };
301
302 /* Exposed to UEXT2 */
303 &uart7 {
304 pinctrl-names = "default";
305 pinctrl-0 = <&uart7_pi_pins>;
306 status = "okay";
307 };
308
309 &usb_otg {
310 dr_mode = "otg";
311 status = "okay";
312 };
313
314 &usb_power_supply {
315 status = "okay";
316 };
317
318 &usbphy {
319 usb0_id_det-gpios = <&pio 7 4 GPIO_ACT
320 usb0_vbus_det-gpios = <&pio 7 5 GPIO_A
321 usb0_vbus_power-supply = <&usb_power_s
322 usb0_vbus-supply = <®_usb0_vbus>;
323 usb1_vbus-supply = <®_usb1_vbus>;
324 usb2_vbus-supply = <®_usb2_vbus>;
325 status = "okay";
326 };
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