1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /*
3 * Copyright 2019 Ondrej Jirman <megous@megous.com>
4 */
5
6 /dts-v1/;
7 #include "sun5i-a13.dtsi"
8 #include "sunxi-common-regulators.dtsi"
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/input/input.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/pwm/pwm.h>
13
14 / {
15 model = "PocketBook Touch Lux 3";
16 compatible = "pocketbook,touch-lux-3", "allwinner,sun5i-a13";
17
18 aliases {
19 serial0 = &uart1;
20 i2c0 = &i2c0;
21 i2c1 = &i2c1;
22 i2c2 = &i2c2;
23 };
24
25 backlight {
26 compatible = "pwm-backlight";
27 pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
28 enable-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */
29 brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
30 default-brightness-level = <8>;
31 power-supply = <®_vcc3v3>;
32 };
33
34 chosen {
35 stdout-path = "serial0:115200n8";
36 };
37
38 leds {
39 compatible = "gpio-leds";
40
41 led {
42 gpios = <&pio 4 8 GPIO_ACTIVE_LOW>; /* PE8 */
43 default-state = "on";
44 };
45 };
46
47 gpio-keys {
48 compatible = "gpio-keys";
49 autorepeat;
50 label = "GPIO Keys";
51
52 key-right {
53 label = "Right";
54 linux,code = <KEY_RIGHT>;
55 gpios = <&pio 6 9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PG9 */
56 };
57
58 key-left {
59 label = "Left";
60 linux,code = <KEY_LEFT>;
61 gpios = <&pio 6 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PG10 */
62 };
63 };
64
65 reg_1v8: regulator-1v8 {
66 compatible = "regulator-fixed";
67 regulator-name = "vdd-1v8-nor-ctp";
68 regulator-min-microvolt = <1800000>;
69 regulator-max-microvolt = <1800000>;
70 gpio = <&pio 2 15 GPIO_ACTIVE_HIGH>;
71 enable-active-high;
72 };
73
74 reg_1v8_nor: regulator-nor {
75 compatible = "regulator-fixed";
76 regulator-name = "vdd-nor";
77 regulator-min-microvolt = <1800000>;
78 regulator-max-microvolt = <1800000>;
79 gpio = <&pio 2 14 GPIO_ACTIVE_HIGH>;
80 enable-active-high;
81 vin-supply = <®_1v8>;
82 regulator-always-on;
83 };
84
85 reg_1v8_ctp: regulator-ctp {
86 compatible = "regulator-fixed";
87 regulator-name = "vdd-ctp";
88 regulator-min-microvolt = <1800000>;
89 regulator-max-microvolt = <1800000>;
90 gpio = <&pio 2 13 GPIO_ACTIVE_HIGH>;
91 enable-active-high;
92 vin-supply = <®_1v8>;
93 };
94
95 reg_3v3_mmc0: regulator-mmc0 {
96 compatible = "regulator-fixed";
97 regulator-name = "vdd-mmc0";
98 regulator-min-microvolt = <3300000>;
99 regulator-max-microvolt = <3300000>;
100 gpio = <&pio 4 4 GPIO_ACTIVE_LOW>; /* PE4 */
101 vin-supply = <®_vcc3v3>;
102 };
103 };
104
105 &cpu0 {
106 cpu-supply = <®_dcdc2>;
107 };
108
109 &ehci0 {
110 status = "okay";
111 };
112
113 &i2c0 {
114 status = "okay";
115
116 axp209: pmic@34 {
117 reg = <0x34>;
118 interrupts = <0>;
119 };
120 };
121
122 #include "axp209.dtsi"
123
124 &i2c1 {
125 status = "okay";
126
127 pcf8563: rtc@51 {
128 compatible = "nxp,pcf8563";
129 reg = <0x51>;
130 };
131 };
132
133 &i2c2 {
134 status = "okay";
135
136 /* Touchpanel is connected here. */
137 };
138
139 &lradc {
140 vref-supply = <®_ldo2>;
141 status = "okay";
142
143 button-200 {
144 label = "Home";
145 linux,code = <KEY_HOME>;
146 channel = <0>;
147 voltage = <200000>;
148 };
149
150 button-400 {
151 label = "Menu";
152 linux,code = <KEY_MENU>;
153 channel = <0>;
154 voltage = <400000>;
155 };
156 };
157
158 &mmc0 {
159 vmmc-supply = <®_3v3_mmc0>;
160 bus-width = <4>;
161 cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
162 status = "okay";
163 };
164
165 &mmc2 {
166 pinctrl-names = "default";
167 pinctrl-0 = <&mmc2_4bit_pc_pins>;
168 vmmc-supply = <®_vcc3v3>;
169 bus-width = <4>;
170 non-removable;
171 status = "okay";
172 };
173
174 &ohci0 {
175 status = "okay";
176 };
177
178 &otg_sram {
179 status = "okay";
180 };
181
182 &pwm {
183 pinctrl-names = "default";
184 pinctrl-0 = <&pwm0_pin>;
185 status = "okay";
186 };
187
188 ®_dcdc2 {
189 regulator-always-on;
190 regulator-min-microvolt = <1000000>;
191 regulator-max-microvolt = <1400000>;
192 regulator-name = "vdd-cpu";
193 };
194
195 ®_dcdc3 {
196 regulator-always-on;
197 regulator-min-microvolt = <1200000>;
198 regulator-max-microvolt = <1200000>;
199 regulator-name = "vdd-int-pll";
200 };
201
202 ®_ldo1 {
203 regulator-name = "vdd-rtc";
204 };
205
206 ®_ldo2 {
207 regulator-always-on;
208 regulator-min-microvolt = <3000000>;
209 regulator-max-microvolt = <3000000>;
210 regulator-name = "avcc";
211 };
212
213 ®_ldo3 {
214 regulator-min-microvolt = <3300000>;
215 regulator-max-microvolt = <3300000>;
216 regulator-name = "vcc-wifi";
217 /* We need this otherwise the LDO3 would overload */
218 regulator-soft-start;
219 regulator-ramp-delay = <1600>;
220 };
221
222 &spi2 {
223 pinctrl-names = "default";
224 pinctrl-0 = <&spi2_pe_pins>, <&spi2_cs0_pe_pin>;
225 status = "okay";
226
227 epd_flash: flash@0 {
228 #address-cells = <1>;
229 #size-cells = <1>;
230 compatible = "macronix,mx25u4033", "jedec,spi-nor";
231 reg = <0>;
232 spi-max-frequency = <4000000>;
233 };
234 };
235
236 &uart1 {
237 pinctrl-names = "default";
238 pinctrl-0 = <&uart1_pg_pins>;
239 status = "okay";
240 };
241
242 &usb_otg {
243 dr_mode = "peripheral";
244 status = "okay";
245 };
246
247 &battery_power_supply {
248 status = "okay";
249 };
250
251 &usb_power_supply {
252 status = "okay";
253 };
254
255 &usbphy {
256 usb1_vbus-supply = <®_ldo3>;
257 status = "okay";
258 };
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