1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Device tree for the Kobo Aura 2 ebook reader
4 *
5 * Name on mainboard is: 37NB-E60QL0+4B1
6 * Serials start with: E60QL2
7 *
8 * Copyright 2022 Andreas Kemnade
9 */
10
11 /dts-v1/;
12
13 #include <dt-bindings/input/input.h>
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/leds/common.h>
16 #include "imx6sl.dtsi"
17
18 / {
19 model = "Kobo Aura 2";
20 compatible = "kobo,aura2", "fsl,imx6sl";
21
22 aliases {
23 mmc0 = &usdhc2;
24 mmc1 = &usdhc3;
25 };
26
27 chosen {
28 stdout-path = &uart1;
29 };
30
31 gpio_keys: gpio-keys {
32 compatible = "gpio-keys";
33 pinctrl-names = "default";
34 pinctrl-0 = <&pinctrl_gpio_keys>;
35
36 key-cover {
37 label = "Cover";
38 gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
39 linux,code = <SW_LID>;
40 linux,input-type = <EV_SW>;
41 wakeup-source;
42 };
43
44 key-power {
45 label = "Power";
46 gpios = <&gpio5 8 GPIO_ACTIVE_LOW>;
47 linux,code = <KEY_POWER>;
48 wakeup-source;
49 };
50 };
51
52 leds: leds {
53 compatible = "gpio-leds";
54 pinctrl-names = "default";
55 pinctrl-0 = <&pinctrl_led>;
56
57 led-0 {
58 label = "koboaura2:white:on";
59 gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
60 color = <LED_COLOR_ID_WHITE>;
61 linux,default-trigger = "timer";
62 };
63 };
64
65 memory@80000000 {
66 device_type = "memory";
67 reg = <0x80000000 0x10000000>;
68 };
69
70 reg_wifi: regulator-wifi {
71 compatible = "regulator-fixed";
72 pinctrl-names = "default";
73 pinctrl-0 = <&pinctrl_wifi_power>;
74 regulator-name = "SD3_SPWR";
75 regulator-min-microvolt = <3000000>;
76 regulator-max-microvolt = <3000000>;
77 gpio = <&gpio4 29 GPIO_ACTIVE_LOW>;
78 };
79
80 wifi_pwrseq: wifi-pwrseq {
81 compatible = "mmc-pwrseq-simple";
82 pinctrl-names = "default";
83 pinctrl-0 = <&pinctrl_wifi_reset>;
84 post-power-on-delay-ms = <20>;
85 reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
86 };
87 };
88
89 &i2c1 {
90 pinctrl-names = "default", "sleep";
91 pinctrl-0 = <&pinctrl_i2c1>;
92 pinctrl-1 = <&pinctrl_i2c1_sleep>;
93 status = "okay";
94
95 lm3630a: backlight@36 {
96 compatible = "ti,lm3630a";
97 pinctrl-names = "default";
98 pinctrl-0 = <&pinctrl_lm3630a_bl_gpio>;
99 reg = <0x36>;
100 enable-gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>;
101
102 #address-cells = <1>;
103 #size-cells = <0>;
104
105 led@0 {
106 reg = <0>;
107 led-sources = <0>;
108 label = "backlight";
109 default-brightness = <0>;
110 max-brightness = <255>;
111 };
112 };
113 };
114
115 &i2c2 {
116 pinctrl-names = "default", "sleep";
117 pinctrl-0 = <&pinctrl_i2c2>;
118 pinctrl-1 = <&pinctrl_i2c2_sleep>;
119 clock-frequency = <100000>;
120 status = "okay";
121
122 /* eKTF2232 at 0x15 */
123 /* FP9928 at 0x48 */
124 };
125
126 &i2c3 {
127 pinctrl-names = "default";
128 pinctrl-0 = <&pinctrl_i2c3>;
129 clock-frequency = <400000>;
130 status = "okay";
131
132 ricoh619: pmic@32 {
133 compatible = "ricoh,rc5t619";
134 pinctrl-names = "default";
135 pinctrl-0 = <&pinctrl_ricoh_gpio>;
136 reg = <0x32>;
137 interrupt-parent = <&gpio5>;
138 interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
139 system-power-controller;
140
141 regulators {
142 dcdc1_reg: DCDC1 {
143 regulator-name = "DCDC1";
144 regulator-min-microvolt = <300000>;
145 regulator-max-microvolt = <1875000>;
146 regulator-always-on;
147 regulator-boot-on;
148
149 regulator-state-mem {
150 regulator-on-in-suspend;
151 regulator-suspend-max-microvolt = <900000>;
152 regulator-suspend-min-microvolt = <900000>;
153 };
154 };
155
156 /* Core3_3V3 */
157 dcdc2_reg: DCDC2 {
158 regulator-name = "DCDC2";
159 regulator-always-on;
160 regulator-boot-on;
161
162 regulator-state-mem {
163 regulator-on-in-suspend;
164 regulator-suspend-max-microvolt = <3100000>;
165 regulator-suspend-min-microvolt = <3100000>;
166 };
167 };
168
169 dcdc3_reg: DCDC3 {
170 regulator-name = "DCDC3";
171 regulator-min-microvolt = <300000>;
172 regulator-max-microvolt = <1875000>;
173 regulator-always-on;
174 regulator-boot-on;
175
176 regulator-state-mem {
177 regulator-on-in-suspend;
178 regulator-suspend-max-microvolt = <1140000>;
179 regulator-suspend-min-microvolt = <1140000>;
180 };
181 };
182
183 /* Core4_1V2 */
184 dcdc4_reg: DCDC4 {
185 regulator-name = "DCDC4";
186 regulator-min-microvolt = <1200000>;
187 regulator-max-microvolt = <1200000>;
188 regulator-always-on;
189 regulator-boot-on;
190
191 regulator-state-mem {
192 regulator-on-in-suspend;
193 regulator-suspend-max-microvolt = <1140000>;
194 regulator-suspend-min-microvolt = <1140000>;
195 };
196 };
197
198 /* Core4_1V8 */
199 dcdc5_reg: DCDC5 {
200 regulator-name = "DCDC5";
201 regulator-min-microvolt = <1800000>;
202 regulator-max-microvolt = <1800000>;
203 regulator-always-on;
204 regulator-boot-on;
205
206 regulator-state-mem {
207 regulator-on-in-suspend;
208 regulator-suspend-max-microvolt = <1700000>;
209 regulator-suspend-min-microvolt = <1700000>;
210 };
211 };
212
213 /* IR_3V3 */
214 ldo1_reg: LDO1 {
215 regulator-name = "LDO1";
216 regulator-always-on;
217 regulator-boot-on;
218 };
219
220 /* Core1_3V3 */
221 ldo2_reg: LDO2 {
222 regulator-name = "LDO2";
223 regulator-always-on;
224 regulator-boot-on;
225
226 regulator-state-mem {
227 regulator-on-in-suspend;
228 regulator-suspend-max-microvolt = <3000000>;
229 regulator-suspend-min-microvolt = <3000000>;
230 };
231 };
232
233 /* Core5_1V2 */
234 ldo3_reg: LDO3 {
235 regulator-name = "LDO3";
236 regulator-always-on;
237 regulator-boot-on;
238 };
239
240 ldo4_reg: LDO4 {
241 regulator-name = "LDO4";
242 regulator-boot-on;
243 };
244
245 /* SPD_3V3 */
246 ldo5_reg: LDO5 {
247 regulator-name = "LDO5";
248 regulator-always-on;
249 regulator-boot-on;
250 };
251
252 /* DDR_0V6 */
253 ldo6_reg: LDO6 {
254 regulator-name = "LDO6";
255 regulator-always-on;
256 regulator-boot-on;
257 };
258
259 /* VDD_PWM */
260 ldo7_reg: LDO7 {
261 regulator-name = "LDO7";
262 regulator-always-on;
263 regulator-boot-on;
264 };
265
266 /* ldo_1v8 */
267 ldo8_reg: LDO8 {
268 regulator-name = "LDO8";
269 regulator-min-microvolt = <1800000>;
270 regulator-max-microvolt = <1800000>;
271 regulator-always-on;
272 regulator-boot-on;
273 };
274
275 ldo9_reg: LDO9 {
276 regulator-name = "LDO9";
277 regulator-boot-on;
278 };
279
280 ldo10_reg: LDO10 {
281 regulator-name = "LDO10";
282 regulator-boot-on;
283 };
284
285 ldortc1_reg: LDORTC1 {
286 regulator-name = "LDORTC1";
287 regulator-always-on;
288 regulator-boot-on;
289 };
290 };
291 };
292 };
293
294 ®_vdd1p1 {
295 vin-supply = <&dcdc2_reg>;
296 };
297
298 ®_vdd2p5 {
299 vin-supply = <&dcdc2_reg>;
300 };
301
302 ®_arm {
303 vin-supply = <&dcdc3_reg>;
304 };
305
306 ®_soc {
307 vin-supply = <&dcdc1_reg>;
308 };
309
310 ®_pu {
311 vin-supply = <&dcdc1_reg>;
312 };
313
314 &snvs_rtc {
315 /*
316 * We are using the RTC in the PMIC, but this one is not disabled
317 * in imx6sl.dtsi.
318 */
319 status = "disabled";
320 };
321
322 &uart1 {
323 /* J4, through-holes */
324 pinctrl-names = "default";
325 pinctrl-0 = <&pinctrl_uart1>;
326 status = "okay";
327 };
328
329 &uart4 {
330 /* TP198, next to J4, SMD pads */
331 pinctrl-names = "default";
332 pinctrl-0 = <&pinctrl_uart4>;
333 status = "okay";
334 };
335
336 &usdhc2 {
337 pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
338 pinctrl-0 = <&pinctrl_usdhc2>;
339 pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
340 pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
341 pinctrl-3 = <&pinctrl_usdhc2_sleep>;
342 non-removable;
343 status = "okay";
344
345 /* internal uSD card */
346 };
347
348 &usdhc3 {
349 pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
350 pinctrl-0 = <&pinctrl_usdhc3>;
351 pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
352 pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
353 pinctrl-3 = <&pinctrl_usdhc3_sleep>;
354 vmmc-supply = <®_wifi>;
355 mmc-pwrseq = <&wifi_pwrseq>;
356 cap-power-off-card;
357 non-removable;
358 status = "okay";
359
360 /*
361 * RTL8189F SDIO WiFi
362 */
363 };
364
365 &usbotg1 {
366 disable-over-current;
367 srp-disable;
368 hnp-disable;
369 adp-disable;
370 status = "okay";
371 };
372
373 &iomuxc {
374 pinctrl_gpio_keys: gpio-keysgrp {
375 fsl,pins = <
376 MX6SL_PAD_SD1_DAT1__GPIO5_IO08 0x17059
377 MX6SL_PAD_SD1_DAT4__GPIO5_IO12 0x17059
378 >;
379 };
380
381 pinctrl_i2c1: i2c1grp {
382 fsl,pins = <
383 MX6SL_PAD_I2C1_SCL__I2C1_SCL 0x4001f8b1
384 MX6SL_PAD_I2C1_SDA__I2C1_SDA 0x4001f8b1
385 >;
386 };
387
388 pinctrl_i2c1_sleep: i2c1-sleepgrp {
389 fsl,pins = <
390 MX6SL_PAD_I2C1_SCL__I2C1_SCL 0x400108b1
391 MX6SL_PAD_I2C1_SDA__I2C1_SDA 0x400108b1
392 >;
393 };
394
395 pinctrl_i2c2: i2c2grp {
396 fsl,pins = <
397 MX6SL_PAD_I2C2_SCL__I2C2_SCL 0x4001f8b1
398 MX6SL_PAD_I2C2_SDA__I2C2_SDA 0x4001f8b1
399 >;
400 };
401
402 pinctrl_i2c2_sleep: i2c2-sleepgrp {
403 fsl,pins = <
404 MX6SL_PAD_I2C2_SCL__I2C2_SCL 0x400108b1
405 MX6SL_PAD_I2C2_SDA__I2C2_SDA 0x400108b1
406 >;
407 };
408
409 pinctrl_i2c3: i2c3grp {
410 fsl,pins = <
411 MX6SL_PAD_REF_CLK_24M__I2C3_SCL 0x4001f8b1
412 MX6SL_PAD_REF_CLK_32K__I2C3_SDA 0x4001f8b1
413 >;
414 };
415
416 pinctrl_led: ledgrp {
417 fsl,pins = <
418 MX6SL_PAD_SD1_DAT6__GPIO5_IO07 0x17059
419 >;
420 };
421
422 pinctrl_lm3630a_bl_gpio: lm3630a-bl-gpiogrp {
423 fsl,pins = <
424 MX6SL_PAD_EPDC_PWRCTRL3__GPIO2_IO10 0x10059 /* HWEN */
425 >;
426 };
427
428 pinctrl_ricoh_gpio: ricoh-gpiogrp {
429 fsl,pins = <
430 MX6SL_PAD_SD1_CLK__GPIO5_IO15 0x1b8b1 /* ricoh619 chg */
431 MX6SL_PAD_SD1_DAT0__GPIO5_IO11 0x1b8b1 /* ricoh619 irq */
432 MX6SL_PAD_KEY_COL2__GPIO3_IO28 0x1b8b1 /* ricoh619 bat_low_int */
433 >;
434 };
435
436 pinctrl_uart1: uart1grp {
437 fsl,pins = <
438 MX6SL_PAD_UART1_TXD__UART1_TX_DATA 0x1b0b1
439 MX6SL_PAD_UART1_RXD__UART1_RX_DATA 0x1b0b1
440 >;
441 };
442
443 pinctrl_uart4: uart4grp {
444 fsl,pins = <
445 MX6SL_PAD_KEY_ROW6__UART4_TX_DATA 0x1b0b1
446 MX6SL_PAD_KEY_COL6__UART4_RX_DATA 0x1b0b1
447 >;
448 };
449
450 pinctrl_usbotg1: usbotg1grp {
451 fsl,pins = <
452 MX6SL_PAD_EPDC_PWRCOM__USB_OTG1_ID 0x17059
453 >;
454 };
455
456 pinctrl_usdhc2: usdhc2grp {
457 fsl,pins = <
458 MX6SL_PAD_SD2_CMD__SD2_CMD 0x17059
459 MX6SL_PAD_SD2_CLK__SD2_CLK 0x13059
460 MX6SL_PAD_SD2_DAT0__SD2_DATA0 0x17059
461 MX6SL_PAD_SD2_DAT1__SD2_DATA1 0x17059
462 MX6SL_PAD_SD2_DAT2__SD2_DATA2 0x17059
463 MX6SL_PAD_SD2_DAT3__SD2_DATA3 0x17059
464 >;
465 };
466
467 pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
468 fsl,pins = <
469 MX6SL_PAD_SD2_CMD__SD2_CMD 0x170b9
470 MX6SL_PAD_SD2_CLK__SD2_CLK 0x130b9
471 MX6SL_PAD_SD2_DAT0__SD2_DATA0 0x170b9
472 MX6SL_PAD_SD2_DAT1__SD2_DATA1 0x170b9
473 MX6SL_PAD_SD2_DAT2__SD2_DATA2 0x170b9
474 MX6SL_PAD_SD2_DAT3__SD2_DATA3 0x170b9
475 >;
476 };
477
478 pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
479 fsl,pins = <
480 MX6SL_PAD_SD2_CMD__SD2_CMD 0x170f9
481 MX6SL_PAD_SD2_CLK__SD2_CLK 0x130f9
482 MX6SL_PAD_SD2_DAT0__SD2_DATA0 0x170f9
483 MX6SL_PAD_SD2_DAT1__SD2_DATA1 0x170f9
484 MX6SL_PAD_SD2_DAT2__SD2_DATA2 0x170f9
485 MX6SL_PAD_SD2_DAT3__SD2_DATA3 0x170f9
486 >;
487 };
488
489 pinctrl_usdhc2_sleep: usdhc2-sleepgrp {
490 fsl,pins = <
491 MX6SL_PAD_SD2_CMD__GPIO5_IO04 0x100f9
492 MX6SL_PAD_SD2_CLK__GPIO5_IO05 0x100f9
493 MX6SL_PAD_SD2_DAT0__GPIO5_IO01 0x100f9
494 MX6SL_PAD_SD2_DAT1__GPIO4_IO30 0x100f9
495 MX6SL_PAD_SD2_DAT2__GPIO5_IO03 0x100f9
496 MX6SL_PAD_SD2_DAT3__GPIO4_IO28 0x100f9
497 >;
498 };
499
500 pinctrl_usdhc3: usdhc3grp {
501 fsl,pins = <
502 MX6SL_PAD_SD3_CMD__SD3_CMD 0x11059
503 MX6SL_PAD_SD3_CLK__SD3_CLK 0x11059
504 MX6SL_PAD_SD3_DAT0__SD3_DATA0 0x11059
505 MX6SL_PAD_SD3_DAT1__SD3_DATA1 0x11059
506 MX6SL_PAD_SD3_DAT2__SD3_DATA2 0x11059
507 MX6SL_PAD_SD3_DAT3__SD3_DATA3 0x11059
508 >;
509 };
510
511 pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
512 fsl,pins = <
513 MX6SL_PAD_SD3_CMD__SD3_CMD 0x170b9
514 MX6SL_PAD_SD3_CLK__SD3_CLK 0x170b9
515 MX6SL_PAD_SD3_DAT0__SD3_DATA0 0x170b9
516 MX6SL_PAD_SD3_DAT1__SD3_DATA1 0x170b9
517 MX6SL_PAD_SD3_DAT2__SD3_DATA2 0x170b9
518 MX6SL_PAD_SD3_DAT3__SD3_DATA3 0x170b9
519 >;
520 };
521
522 pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
523 fsl,pins = <
524 MX6SL_PAD_SD3_CMD__SD3_CMD 0x170f9
525 MX6SL_PAD_SD3_CLK__SD3_CLK 0x170f9
526 MX6SL_PAD_SD3_DAT0__SD3_DATA0 0x170f9
527 MX6SL_PAD_SD3_DAT1__SD3_DATA1 0x170f9
528 MX6SL_PAD_SD3_DAT2__SD3_DATA2 0x170f9
529 MX6SL_PAD_SD3_DAT3__SD3_DATA3 0x170f9
530 >;
531 };
532
533 pinctrl_usdhc3_sleep: usdhc3-sleepgrp {
534 fsl,pins = <
535 MX6SL_PAD_SD3_CMD__GPIO5_IO21 0x100c1
536 MX6SL_PAD_SD3_CLK__GPIO5_IO18 0x100c1
537 MX6SL_PAD_SD3_DAT0__GPIO5_IO19 0x100c1
538 MX6SL_PAD_SD3_DAT1__GPIO5_IO20 0x100c1
539 MX6SL_PAD_SD3_DAT2__GPIO5_IO16 0x100c1
540 MX6SL_PAD_SD3_DAT3__GPIO5_IO17 0x100c1
541 >;
542 };
543
544 pinctrl_wifi_power: wifi-powergrp {
545 fsl,pins = <
546 MX6SL_PAD_SD2_DAT6__GPIO4_IO29 0x10059 /* WIFI_3V3_ON */
547 >;
548 };
549
550 pinctrl_wifi_reset: wifi-resetgrp {
551 fsl,pins = <
552 MX6SL_PAD_SD2_DAT7__GPIO5_IO00 0x10059 /* WIFI_RST */
553 >;
554 };
555 };
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