1 // SPDX-License-Identifier: GPL-2.0+
2 // Copyright 2019 Jonathan Neuschäfer
3 //
4 // The Kobo Aura e-book reader, model N514. The mainboard is marked as E606F0B.
5
6 /dts-v1/;
7 #include "imx50.dtsi"
8 #include <dt-bindings/input/input.h>
9 #include <dt-bindings/interrupt-controller/irq.h>
10
11 / {
12 model = "Kobo Aura (N514)";
13 compatible = "kobo,aura", "fsl,imx50";
14
15 chosen {
16 stdout-path = "serial1:115200n8";
17 };
18
19 memory@70000000 {
20 device_type = "memory";
21 reg = <0x70000000 0x10000000>;
22 };
23
24 gpio-leds {
25 compatible = "gpio-leds";
26 pinctrl-names = "default";
27 pinctrl-0 = <&pinctrl_leds>;
28
29 led-on {
30 label = "kobo_aura:orange:on";
31 gpios = <&gpio6 24 GPIO_ACTIVE_LOW>;
32 panic-indicator;
33 };
34 };
35
36 gpio-keys {
37 compatible = "gpio-keys";
38 pinctrl-names = "default";
39 pinctrl-0 = <&pinctrl_gpiokeys>;
40
41 key-power {
42 label = "Power Button";
43 gpios = <&gpio4 10 GPIO_ACTIVE_LOW>;
44 linux,code = <KEY_POWER>;
45 };
46
47 event-hallsensor {
48 label = "Hallsensor";
49 gpios = <&gpio5 15 GPIO_ACTIVE_LOW>;
50 linux,code = <KEY_RESERVED>;
51 linux,input-type = <EV_SW>;
52 };
53
54 event-frontlight {
55 label = "Frontlight";
56 gpios = <&gpio4 1 GPIO_ACTIVE_LOW>;
57 linux,code = <KEY_DISPLAYTOGGLE>;
58 };
59 };
60
61 sd2_pwrseq: pwrseq {
62 compatible = "mmc-pwrseq-simple";
63 pinctrl-names = "default";
64 pinctrl-0 = <&pinctrl_sd2_reset>;
65 reset-gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
66 };
67
68 sd2_vmmc: gpio-regulator {
69 compatible = "regulator-gpio";
70 pinctrl-names = "default";
71 pinctrl-0 = <&pinctrl_sd2_vmmc>;
72 regulator-name = "vmmc";
73 states = <3300000 0>;
74 regulator-min-microvolt = <3300000>;
75 regulator-max-microvolt = <3300000>;
76 enable-gpios = <&gpio4 12 GPIO_ACTIVE_LOW>;
77 startup-delay-us = <100000>;
78 };
79 };
80
81 &esdhc1 {
82 pinctrl-names = "default";
83 pinctrl-0 = <&pinctrl_sd1>;
84 max-frequency = <50000000>;
85 bus-width = <4>;
86 cd-gpios = <&gpio5 17 GPIO_ACTIVE_LOW>;
87 disable-wp;
88 status = "okay";
89
90 /* External µSD card */
91 };
92
93 &esdhc2 {
94 pinctrl-names = "default";
95 pinctrl-0 = <&pinctrl_sd2>;
96 bus-width = <4>;
97 max-frequency = <50000000>;
98 disable-wp;
99 mmc-pwrseq = <&sd2_pwrseq>;
100 vmmc-supply = <&sd2_vmmc>;
101 status = "okay";
102
103 /* CyberTan WC121 SDIO WiFi (BCM43362) */
104 };
105
106 &esdhc3 {
107 pinctrl-names = "default";
108 pinctrl-0 = <&pinctrl_sd3>;
109 bus-width = <8>;
110 non-removable;
111 max-frequency = <50000000>;
112 disable-wp;
113 status = "okay";
114
115 /* Internal eMMC */
116 };
117
118 &i2c1 {
119 pinctrl-names = "default";
120 pinctrl-0 = <&pinctrl_i2c1>;
121 status = "okay";
122
123 touchscreen@15 {
124 reg = <0x15>;
125 compatible = "elan,ektf2132";
126 pinctrl-names = "default";
127 pinctrl-0 = <&pinctrl_ts>;
128 power-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
129 interrupts-extended = <&gpio5 13 IRQ_TYPE_EDGE_FALLING>;
130 };
131 };
132
133 &i2c2 {
134 pinctrl-names = "default";
135 pinctrl-0 = <&pinctrl_i2c2>;
136 status = "okay";
137
138 /* TODO: TPS65185 PMIC for E Ink at 0x68 */
139 };
140
141 &i2c3 {
142 pinctrl-names = "default";
143 pinctrl-0 = <&pinctrl_i2c3>;
144 status = "okay";
145
146 embedded-controller@43 {
147 pinctrl-names = "default";
148 pinctrl-0 = <&pinctrl_ec>;
149 compatible = "netronix,ntxec";
150 reg = <0x43>;
151 system-power-controller;
152 interrupts-extended = <&gpio4 11 IRQ_TYPE_EDGE_FALLING>;
153 #pwm-cells = <2>;
154 };
155 };
156
157 &iomuxc {
158 pinctrl_ec: ecgrp {
159 fsl,pins = <
160 MX50_PAD_CSPI_SS0__GPIO4_11 0x0 /* INT */
161 >;
162 };
163
164 pinctrl_gpiokeys: gpiokeysgrp {
165 fsl,pins = <
166 MX50_PAD_CSPI_MISO__GPIO4_10 0x0
167 MX50_PAD_SD2_D7__GPIO5_15 0x0
168 MX50_PAD_KEY_ROW0__GPIO4_1 0x0
169 >;
170 };
171
172 pinctrl_i2c1: i2c1grp {
173 fsl,pins = <
174 MX50_PAD_I2C1_SCL__I2C1_SCL 0x400001fd
175 MX50_PAD_I2C1_SDA__I2C1_SDA 0x400001fd
176 >;
177 };
178
179 pinctrl_i2c2: i2c2grp {
180 fsl,pins = <
181 MX50_PAD_I2C2_SCL__I2C2_SCL 0x400001fd
182 MX50_PAD_I2C2_SDA__I2C2_SDA 0x400001fd
183 >;
184 };
185
186 pinctrl_i2c3: i2c3grp {
187 fsl,pins = <
188 MX50_PAD_I2C3_SCL__I2C3_SCL 0x400001fd
189 MX50_PAD_I2C3_SDA__I2C3_SDA 0x400001fd
190 >;
191 };
192
193 pinctrl_leds: ledsgrp {
194 fsl,pins = <
195 MX50_PAD_PWM1__GPIO6_24 0x0
196 >;
197 };
198
199 pinctrl_sd1: sd1grp {
200 fsl,pins = <
201 MX50_PAD_SD1_CMD__ESDHC1_CMD 0x1e4
202 MX50_PAD_SD1_CLK__ESDHC1_CLK 0xd4
203 MX50_PAD_SD1_D0__ESDHC1_DAT0 0x1d4
204 MX50_PAD_SD1_D1__ESDHC1_DAT1 0x1d4
205 MX50_PAD_SD1_D2__ESDHC1_DAT2 0x1d4
206 MX50_PAD_SD1_D3__ESDHC1_DAT3 0x1d4
207
208 MX50_PAD_SD2_CD__GPIO5_17 0x0
209 >;
210 };
211
212 pinctrl_sd2: sd2grp {
213 fsl,pins = <
214 MX50_PAD_SD2_CMD__ESDHC2_CMD 0x1e4
215 MX50_PAD_SD2_CLK__ESDHC2_CLK 0xd4
216 MX50_PAD_SD2_D0__ESDHC2_DAT0 0x1d4
217 MX50_PAD_SD2_D1__ESDHC2_DAT1 0x1d4
218 MX50_PAD_SD2_D2__ESDHC2_DAT2 0x1d4
219 MX50_PAD_SD2_D3__ESDHC2_DAT3 0x1d4
220 >;
221 };
222
223 pinctrl_sd2_reset: sd2-resetgrp {
224 fsl,pins = <
225 MX50_PAD_ECSPI2_MOSI__GPIO4_17 0x0
226 >;
227 };
228
229 pinctrl_sd2_vmmc: sd2-vmmcgrp {
230 fsl,pins = <
231 MX50_PAD_ECSPI1_SCLK__GPIO4_12 0x0
232 >;
233 };
234
235 pinctrl_sd3: sd3grp {
236 fsl,pins = <
237 MX50_PAD_SD3_CMD__ESDHC3_CMD 0x1e4
238 MX50_PAD_SD3_CLK__ESDHC3_CLK 0xd4
239 MX50_PAD_SD3_D0__ESDHC3_DAT0 0x1d4
240 MX50_PAD_SD3_D1__ESDHC3_DAT1 0x1d4
241 MX50_PAD_SD3_D2__ESDHC3_DAT2 0x1d4
242 MX50_PAD_SD3_D3__ESDHC3_DAT3 0x1d4
243 MX50_PAD_SD3_D4__ESDHC3_DAT4 0x1d4
244 MX50_PAD_SD3_D5__ESDHC3_DAT5 0x1d4
245 MX50_PAD_SD3_D6__ESDHC3_DAT6 0x1d4
246 MX50_PAD_SD3_D7__ESDHC3_DAT7 0x1d4
247 >;
248 };
249
250 pinctrl_ts: tsgrp {
251 fsl,pins = <
252 MX50_PAD_CSPI_MOSI__GPIO4_9 0x0
253 MX50_PAD_SD2_D5__GPIO5_13 0x0
254 >;
255 };
256
257 pinctrl_uart2: uart2grp {
258 fsl,pins = <
259 MX50_PAD_UART2_TXD__UART2_TXD_MUX 0x1e4
260 MX50_PAD_UART2_RXD__UART2_RXD_MUX 0x1e4
261 >;
262 };
263
264 pinctrl_usbphy: usbphygrp {
265 fsl,pins = <
266 MX50_PAD_ECSPI2_SS0__GPIO4_19 0x0
267 >;
268 };
269 };
270
271 &uart2 {
272 pinctrl-names = "default";
273 pinctrl-0 = <&pinctrl_uart2>;
274 status = "okay";
275 };
276
277 &usbotg {
278 phy_type = "utmi_wide";
279 dr_mode = "peripheral";
280 status = "okay";
281 };
282
283 &usbphy0 {
284 pinctrl-names = "default";
285 pinctrl-0 = <&pinctrl_usbphy>;
286 vbus-detect-gpio = <&gpio4 19 GPIO_ACTIVE_LOW>;
287 };
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