1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2
3 /dts-v1/;
4 #include <dt-bindings/input/linux-event-codes.h>
5 #include "sun8i-v3s.dtsi"
6 #include "sunxi-common-regulators.dtsi"
7
8 / {
9 model = "Anbernic RG Nano";
10 compatible = "anbernic,rg-nano", "allwinner,sun8i-v3s";
11
12 aliases {
13 rtc0 = &pcf8563;
14 rtc1 = &rtc;
15 serial0 = &uart0;
16 };
17
18 backlight: backlight {
19 compatible = "pwm-backlight";
20 brightness-levels = <0 1 2 3 8 14 21 32 46 60 80 100>;
21 default-brightness-level = <11>;
22 power-supply = <®_vcc5v0>;
23 pwms = <&pwm 0 40000 1>;
24 };
25
26 chosen {
27 stdout-path = "serial0:115200n8";
28 };
29
30 gpio_keys: gpio-keys {
31 compatible = "gpio-keys";
32
33 button-a {
34 gpios = <&gpio_expander 12 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
35 label = "BTN-A";
36 linux,code = <BTN_EAST>;
37 };
38
39 button-b {
40 gpios = <&gpio_expander 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
41 label = "BTN-B";
42 linux,code = <BTN_SOUTH>;
43 };
44
45 button-down {
46 gpios = <&gpio_expander 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
47 label = "DPAD-DOWN";
48 linux,code = <BTN_DPAD_DOWN>;
49 };
50
51 button-left {
52 gpios = <&gpio_expander 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
53 label = "DPAD-LEFT";
54 linux,code = <BTN_DPAD_LEFT>;
55 };
56
57 button-right {
58 gpios = <&gpio_expander 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
59 label = "DPAD-RIGHT";
60 linux,code = <BTN_DPAD_RIGHT>;
61 };
62
63 button-se {
64 gpios = <&gpio_expander 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
65 label = "BTN-SELECT";
66 linux,code = <BTN_SELECT>;
67 };
68
69 button-st {
70 gpios = <&gpio_expander 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
71 label = "BTN-START";
72 linux,code = <BTN_START>;
73 };
74
75 button-tl {
76 gpios = <&gpio_expander 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
77 label = "BTN-L";
78 linux,code = <BTN_TL>;
79 };
80
81 button-tr {
82 gpios = <&gpio_expander 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
83 label = "BTN-R";
84 linux,code = <BTN_TR>;
85 };
86
87 button-up {
88 gpios = <&gpio_expander 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
89 label = "DPAD-UP";
90 linux,code = <BTN_DPAD_UP>;
91 };
92
93 button-x {
94 gpios = <&gpio_expander 11 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
95 label = "BTN-X";
96 linux,code = <BTN_NORTH>;
97 };
98
99 button-y {
100 gpios = <&gpio_expander 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
101 label = "BTN-Y";
102 linux,code = <BTN_WEST>;
103 };
104 };
105 };
106
107 &codec {
108 allwinner,audio-routing = "Speaker", "HP",
109 "MIC1", "Mic",
110 "Mic", "HBIAS";
111 allwinner,pa-gpios = <&pio 5 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PF6 */
112 status = "okay";
113 };
114
115 &ehci {
116 status = "okay";
117 };
118
119 &i2c0 {
120 status = "okay";
121
122 gpio_expander: gpio@20 {
123 compatible = "nxp,pcal6416";
124 reg = <0x20>;
125 gpio-controller;
126 #gpio-cells = <2>;
127 #interrupt-cells = <2>;
128 interrupt-controller;
129 interrupt-parent = <&pio>;
130 interrupts = <1 3 IRQ_TYPE_EDGE_BOTH>; /* PB3/EINT3 */
131 vcc-supply = <®_vcc3v3>;
132 };
133
134 axp209: pmic@34 {
135 reg = <0x34>;
136 interrupt-parent = <&pio>;
137 interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5/EINT5 */
138 };
139
140 pcf8563: rtc@51 {
141 compatible = "nxp,pcf8563";
142 reg = <0x51>;
143 };
144 };
145
146 #include "axp209.dtsi"
147
148 &battery_power_supply {
149 status = "okay";
150 };
151
152 &mmc0 {
153 broken-cd;
154 bus-width = <4>;
155 disable-wp;
156 vmmc-supply = <®_vcc3v3>;
157 vqmmc-supply = <®_vcc3v3>;
158 status = "okay";
159 };
160
161 &ohci {
162 status = "okay";
163 };
164
165 &pio {
166 vcc-pb-supply = <®_vcc3v3>;
167 vcc-pc-supply = <®_vcc3v3>;
168 vcc-pf-supply = <®_vcc3v3>;
169 vcc-pg-supply = <®_vcc3v3>;
170
171 spi0_no_miso_pins: spi0-no-miso-pins {
172 pins = "PC1", "PC2", "PC3";
173 function = "spi0";
174 };
175 };
176
177 &pwm {
178 pinctrl-0 = <&pwm0_pin>;
179 pinctrl-names = "default";
180 status = "okay";
181 };
182
183 /* DCDC2 wired into vdd-cpu, vdd-sys, and vdd-ephy. */
184 ®_dcdc2 {
185 regulator-always-on;
186 regulator-max-microvolt = <1250000>;
187 regulator-min-microvolt = <1250000>;
188 regulator-name = "vdd-cpu";
189 };
190
191 /* DCDC3 wired into every 3.3v input that isn't the RTC. */
192 ®_dcdc3 {
193 regulator-always-on;
194 regulator-max-microvolt = <3300000>;
195 regulator-min-microvolt = <3300000>;
196 regulator-name = "vcc-io";
197 };
198
199 /* LDO1 wired into RTC, voltage is hard-wired at 3.3v. */
200 ®_ldo1 {
201 regulator-always-on;
202 regulator-name = "vcc-rtc";
203 };
204
205 /* LDO2 wired into VCC-PLL and audio codec. */
206 ®_ldo2 {
207 regulator-always-on;
208 regulator-max-microvolt = <3000000>;
209 regulator-min-microvolt = <3000000>;
210 regulator-name = "vcc-pll";
211 };
212
213 /* LDO3, LDO4, and LDO5 unused. */
214 ®_ldo3 {
215 status = "disabled";
216 };
217
218 ®_ldo4 {
219 status = "disabled";
220 };
221
222 /* RTC uses internal oscillator */
223 &rtc {
224 /delete-property/ clocks;
225 };
226
227 &spi0 {
228 pinctrl-0 = <&spi0_no_miso_pins>;
229 pinctrl-names = "default";
230 status = "okay";
231
232 display@0 {
233 compatible = "saef,sftc154b", "panel-mipi-dbi-spi";
234 reg = <0>;
235 backlight = <&backlight>;
236 dc-gpios = <&pio 2 0 GPIO_ACTIVE_HIGH>; /* PC0 */
237 reset-gpios = <&pio 1 2 GPIO_ACTIVE_HIGH>; /* PB2 */
238 spi-max-frequency = <100000000>;
239
240 height-mm = <39>;
241 width-mm = <39>;
242
243 /* Set hb-porch to compensate for non-visible area */
244 panel-timing {
245 hactive = <240>;
246 vactive = <240>;
247 hback-porch = <80>;
248 vback-porch = <0>;
249 clock-frequency = <0>;
250 hfront-porch = <0>;
251 hsync-len = <0>;
252 vfront-porch = <0>;
253 vsync-len = <0>;
254 };
255 };
256 };
257
258 &uart0 {
259 pinctrl-0 = <&uart0_pb_pins>;
260 pinctrl-names = "default";
261 status = "okay";
262 };
263
264 &usb_otg {
265 dr_mode = "otg";
266 status = "okay";
267 };
268
269 &usb_power_supply {
270 status = "okay";
271 };
272
273 &usbphy {
274 usb0_id_det-gpios = <&pio 6 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PG5 */
275 status = "okay";
276 };
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