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1/*
2 * Google Snow board device tree source
3 *
4 * Copyright (c) 2012 Google, Inc
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <dt-bindings/gpio/gpio.h>
12#include <dt-bindings/clock/maxim,max77686.h>
13#include <dt-bindings/interrupt-controller/irq.h>
14#include <dt-bindings/input/input.h>
15#include "exynos5250.dtsi"
16
17/ {
18 aliases {
19 i2c104 = &i2c_104;
20 };
21
22 memory@40000000 {
23 device_type = "memory";
24 reg = <0x40000000 0x80000000>;
25 };
26
27 chosen {
28 bootargs = "console=tty1";
29 stdout-path = "serial3:115200n8";
30 };
31
32 gpio-keys {
33 compatible = "gpio-keys";
34 pinctrl-names = "default";
35 pinctrl-0 = <&power_key_irq &lid_irq>;
36
37 power {
38 label = "Power";
39 gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
40 linux,code = <KEY_POWER>;
41 wakeup-source;
42 };
43
44 lid-switch {
45 label = "Lid";
46 gpios = <&gpx3 5 GPIO_ACTIVE_LOW>;
47 linux,input-type = <5>; /* EV_SW */
48 linux,code = <0>; /* SW_LID */
49 debounce-interval = <1>;
50 wakeup-source;
51 };
52 };
53
54 vbat: vbat-fixed-regulator {
55 compatible = "regulator-fixed";
56 regulator-name = "vbat-supply";
57 regulator-boot-on;
58 };
59
60 i2c-arbitrator {
61 compatible = "i2c-arb-gpio-challenge";
62 #address-cells = <1>;
63 #size-cells = <0>;
64
65 i2c-parent = <&i2c_4>;
66
67 our-claim-gpio = <&gpf0 3 GPIO_ACTIVE_LOW>;
68 their-claim-gpios = <&gpe0 4 GPIO_ACTIVE_LOW>;
69 slew-delay-us = <10>;
70 wait-retry-us = <3000>;
71 wait-free-us = <50000>;
72
73 pinctrl-names = "default";
74 pinctrl-0 = <&arb_our_claim &arb_their_claim>;
75
76 /* Use ID 104 as a hint that we're on physical bus 4 */
77 i2c_104: i2c@0 {
78 reg = <0>;
79 #address-cells = <1>;
80 #size-cells = <0>;
81
82 battery: sbs-battery@b {
83 compatible = "sbs,sbs-battery";
84 reg = <0xb>;
85 sbs,poll-retry-count = <1>;
86 };
87
88 cros_ec: embedded-controller@1e {
89 compatible = "google,cros-ec-i2c";
90 reg = <0x1e>;
91 interrupts = <6 IRQ_TYPE_NONE>;
92 interrupt-parent = <&gpx1>;
93 pinctrl-names = "default";
94 pinctrl-0 = <&ec_irq>;
95 wakeup-source;
96 };
97
98 power-regulator@48 {
99 compatible = "ti,tps65090";
100 reg = <0x48>;
101
102 /*
103 * Config irq to disable internal pulls
104 * even though we run in polling mode.
105 */
106 pinctrl-names = "default";
107 pinctrl-0 = <&tps65090_irq>;
108
109 vsys1-supply = <&vbat>;
110 vsys2-supply = <&vbat>;
111 vsys3-supply = <&vbat>;
112 infet1-supply = <&vbat>;
113 infet2-supply = <&vbat>;
114 infet3-supply = <&vbat>;
115 infet4-supply = <&vbat>;
116 infet5-supply = <&vbat>;
117 infet6-supply = <&vbat>;
118 infet7-supply = <&vbat>;
119 vsys-l1-supply = <&vbat>;
120 vsys-l2-supply = <&vbat>;
121
122 regulators {
123 dcdc1 {
124 ti,enable-ext-control;
125 };
126 dcdc2 {
127 ti,enable-ext-control;
128 };
129 dcdc3 {
130 ti,enable-ext-control;
131 };
132 fet1: fet1 {
133 regulator-name = "vcd_led";
134 ti,overcurrent-wait = <3>;
135 };
136 tps65090_fet2: fet2 {
137 regulator-name = "video_mid";
138 regulator-always-on;
139 ti,overcurrent-wait = <3>;
140 };
141 fet3 {
142 regulator-name = "wwan_r";
143 regulator-always-on;
144 ti,overcurrent-wait = <3>;
145 };
146 fet4 {
147 regulator-name = "sdcard";
148 ti,overcurrent-wait = <3>;
149 };
150 fet5 {
151 regulator-name = "camout";
152 regulator-always-on;
153 ti,overcurrent-wait = <3>;
154 };
155 fet6: fet6 {
156 regulator-name = "lcd_vdd";
157 ti,overcurrent-wait = <3>;
158 };
159 tps65090_fet7: fet7 {
160 regulator-name = "video_mid_1a";
161 regulator-always-on;
162 ti,overcurrent-wait = <3>;
163 };
164 ldo1 {
165 };
166 ldo2 {
167 };
168 };
169
170 charger {
171 compatible = "ti,tps65090-charger";
172 };
173 };
174 };
175 };
176
177 sound {
178 samsung,i2s-controller = <&i2s0>;
179 };
180
181 usb3_vbus_reg: regulator-usb3 {
182 compatible = "regulator-fixed";
183 regulator-name = "P5.0V_USB3CON";
184 regulator-min-microvolt = <5000000>;
185 regulator-max-microvolt = <5000000>;
186 gpio = <&gpx2 7 GPIO_ACTIVE_HIGH>;
187 pinctrl-names = "default";
188 pinctrl-0 = <&usb3_vbus_en>;
189 enable-active-high;
190 };
191
192 fixed-rate-clocks {
193 xxti {
194 compatible = "samsung,clock-xxti";
195 clock-frequency = <24000000>;
196 };
197 };
198
199 backlight: backlight {
200 compatible = "pwm-backlight";
201 pwms = <&pwm 0 1000000 0>;
202 brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
203 default-brightness-level = <7>;
204 enable-gpios = <&gpx3 0 GPIO_ACTIVE_HIGH>;
205 power-supply = <&fet1>;
206 pinctrl-0 = <&pwm0_out>;
207 pinctrl-names = "default";
208 };
209
210 panel: panel {
211 compatible = "auo,b116xw03";
212 power-supply = <&fet6>;
213 backlight = <&backlight>;
214
215 port {
216 panel_in: endpoint {
217 remote-endpoint = <&bridge_out>;
218 };
219 };
220 };
221
222 mmc3_pwrseq: mmc3_pwrseq {
223 compatible = "mmc-pwrseq-simple";
224 reset-gpios = <&gpx0 2 GPIO_ACTIVE_LOW>, /* WIFI_RSTn */
225 <&gpx0 1 GPIO_ACTIVE_LOW>; /* WIFI_EN */
226 clocks = <&max77686 MAX77686_CLK_PMIC>;
227 clock-names = "ext_clock";
228 };
229};
230
231&cpu0 {
232 cpu0-supply = <&buck2_reg>;
233};
234
235&dp {
236 status = "okay";
237 pinctrl-names = "default";
238 pinctrl-0 = <&dp_hpd>;
239 samsung,color-space = <0>;
240 samsung,color-depth = <1>;
241 samsung,link-rate = <0x0a>;
242 samsung,lane-count = <2>;
243 hpd-gpios = <&gpx0 7 GPIO_ACTIVE_HIGH>;
244
245 ports {
246 port {
247 dp_out: endpoint {
248 remote-endpoint = <&bridge_in>;
249 };
250 };
251 };
252};
253
254&ehci {
255 samsung,vbus-gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
256};
257
258&fimd {
259 status = "okay";
260 samsung,invert-vclk;
261};
262
263&hdmi {
264 hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
265 pinctrl-names = "default";
266 pinctrl-0 = <&hdmi_hpd_irq>;
267 phy = <&hdmiphy>;
268 ddc = <&i2c_2>;
269 hdmi-en-supply = <&tps65090_fet7>;
270 vdd-supply = <&ldo8_reg>;
271 vdd_osc-supply = <&ldo10_reg>;
272 vdd_pll-supply = <&ldo8_reg>;
273};
274
275&i2c_0 {
276 status = "okay";
277 samsung,i2c-sda-delay = <100>;
278 samsung,i2c-max-bus-freq = <378000>;
279
280 max77686: max77686@09 {
281 compatible = "maxim,max77686";
282 interrupt-parent = <&gpx3>;
283 interrupts = <2 IRQ_TYPE_NONE>;
284 pinctrl-names = "default";
285 pinctrl-0 = <&max77686_irq>;
286 wakeup-source;
287 reg = <0x09>;
288 #clock-cells = <1>;
289
290 voltage-regulators {
291 ldo1_reg: LDO1 {
292 regulator-name = "P1.0V_LDO_OUT1";
293 regulator-min-microvolt = <1000000>;
294 regulator-max-microvolt = <1000000>;
295 regulator-always-on;
296 };
297
298 ldo2_reg: LDO2 {
299 regulator-name = "P1.8V_LDO_OUT2";
300 regulator-min-microvolt = <1800000>;
301 regulator-max-microvolt = <1800000>;
302 regulator-always-on;
303 };
304
305 ldo3_reg: LDO3 {
306 regulator-name = "P1.8V_LDO_OUT3";
307 regulator-min-microvolt = <1800000>;
308 regulator-max-microvolt = <1800000>;
309 regulator-always-on;
310 };
311
312 ldo7_reg: LDO7 {
313 regulator-name = "P1.1V_LDO_OUT7";
314 regulator-min-microvolt = <1100000>;
315 regulator-max-microvolt = <1100000>;
316 regulator-always-on;
317 };
318
319 ldo8_reg: LDO8 {
320 regulator-name = "P1.0V_LDO_OUT8";
321 regulator-min-microvolt = <1000000>;
322 regulator-max-microvolt = <1000000>;
323 regulator-always-on;
324 };
325
326 ldo10_reg: LDO10 {
327 regulator-name = "P1.8V_LDO_OUT10";
328 regulator-min-microvolt = <1800000>;
329 regulator-max-microvolt = <1800000>;
330 regulator-always-on;
331 };
332
333 ldo12_reg: LDO12 {
334 regulator-name = "P3.0V_LDO_OUT12";
335 regulator-min-microvolt = <3000000>;
336 regulator-max-microvolt = <3000000>;
337 regulator-always-on;
338 };
339
340 ldo14_reg: LDO14 {
341 regulator-name = "P1.8V_LDO_OUT14";
342 regulator-min-microvolt = <1800000>;
343 regulator-max-microvolt = <1800000>;
344 regulator-always-on;
345 };
346
347 ldo15_reg: LDO15 {
348 regulator-name = "P1.0V_LDO_OUT15";
349 regulator-min-microvolt = <1000000>;
350 regulator-max-microvolt = <1000000>;
351 regulator-always-on;
352 };
353
354 ldo16_reg: LDO16 {
355 regulator-name = "P1.8V_LDO_OUT16";
356 regulator-min-microvolt = <1800000>;
357 regulator-max-microvolt = <1800000>;
358 regulator-always-on;
359 };
360
361 buck1_reg: BUCK1 {
362 regulator-name = "vdd_mif";
363 regulator-min-microvolt = <950000>;
364 regulator-max-microvolt = <1300000>;
365 regulator-always-on;
366 regulator-boot-on;
367 };
368
369 buck2_reg: BUCK2 {
370 regulator-name = "vdd_arm";
371 regulator-min-microvolt = <850000>;
372 regulator-max-microvolt = <1350000>;
373 regulator-always-on;
374 regulator-boot-on;
375 };
376
377 buck3_reg: BUCK3 {
378 regulator-name = "vdd_int";
379 regulator-min-microvolt = <900000>;
380 regulator-max-microvolt = <1200000>;
381 regulator-always-on;
382 regulator-boot-on;
383 };
384
385 buck4_reg: BUCK4 {
386 regulator-name = "vdd_g3d";
387 regulator-min-microvolt = <850000>;
388 regulator-max-microvolt = <1300000>;
389 regulator-always-on;
390 regulator-boot-on;
391 };
392
393 buck5_reg: BUCK5 {
394 regulator-name = "P1.8V_BUCK_OUT5";
395 regulator-min-microvolt = <1800000>;
396 regulator-max-microvolt = <1800000>;
397 regulator-always-on;
398 regulator-boot-on;
399 };
400
401 buck6_reg: BUCK6 {
402 regulator-name = "P1.35V_BUCK_OUT6";
403 regulator-min-microvolt = <1350000>;
404 regulator-max-microvolt = <1350000>;
405 regulator-always-on;
406 };
407
408 buck7_reg: BUCK7 {
409 regulator-name = "P2.0V_BUCK_OUT7";
410 regulator-min-microvolt = <2000000>;
411 regulator-max-microvolt = <2000000>;
412 regulator-always-on;
413 };
414
415 buck8_reg: BUCK8 {
416 regulator-name = "P2.85V_BUCK_OUT8";
417 regulator-min-microvolt = <2850000>;
418 regulator-max-microvolt = <2850000>;
419 regulator-always-on;
420 };
421 };
422 };
423};
424
425&i2c_1 {
426 status = "okay";
427 samsung,i2c-sda-delay = <100>;
428 samsung,i2c-max-bus-freq = <378000>;
429
430 trackpad@67 {
431 reg = <0x67>;
432 compatible = "cypress,cyapa";
433 interrupts = <2 IRQ_TYPE_NONE>;
434 interrupt-parent = <&gpx1>;
435 wakeup-source;
436 };
437};
438
439/*
440 * Disabled pullups since external part has its own pullups and
441 * double-pulling gets us out of spec in some cases.
442 */
443&i2c2_bus {
444 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
445};
446
447&i2c_2 {
448 status = "okay";
449 samsung,i2c-sda-delay = <100>;
450 samsung,i2c-max-bus-freq = <66000>;
451
452 hdmiddc@50 {
453 compatible = "samsung,exynos4210-hdmiddc";
454 reg = <0x50>;
455 };
456};
457
458&i2c_3 {
459 status = "okay";
460 samsung,i2c-sda-delay = <100>;
461 samsung,i2c-max-bus-freq = <66000>;
462};
463
464&i2c_4 {
465 status = "okay";
466 samsung,i2c-sda-delay = <100>;
467 samsung,i2c-max-bus-freq = <66000>;
468};
469
470&i2c_5 {
471 status = "okay";
472 samsung,i2c-sda-delay = <100>;
473 samsung,i2c-max-bus-freq = <66000>;
474};
475
476&i2c_7 {
477 status = "okay";
478 samsung,i2c-sda-delay = <100>;
479 samsung,i2c-max-bus-freq = <66000>;
480
481 ptn3460: lvds-bridge@20 {
482 compatible = "nxp,ptn3460";
483 reg = <0x20>;
484 powerdown-gpios = <&gpy2 5 GPIO_ACTIVE_HIGH>;
485 reset-gpios = <&gpx1 5 GPIO_ACTIVE_HIGH>;
486 edid-emulation = <5>;
487
488 ports {
489 #address-cells = <1>;
490 #size-cells = <0>;
491
492 port@0 {
493 reg = <0>;
494
495 bridge_out: endpoint {
496 remote-endpoint = <&panel_in>;
497 };
498 };
499
500 port@1 {
501 reg = <1>;
502
503 bridge_in: endpoint {
504 remote-endpoint = <&dp_out>;
505 };
506 };
507 };
508 };
509};
510
511&i2c_8 {
512 status = "okay";
513 samsung,i2c-sda-delay = <100>;
514 samsung,i2c-max-bus-freq = <378000>;
515
516 hdmiphy: hdmiphy@38 {
517 compatible = "samsung,exynos4212-hdmiphy";
518 reg = <0x38>;
519 };
520};
521
522&i2s0 {
523 status = "okay";
524};
525
526/* eMMC flash */
527&mmc_0 {
528 status = "okay";
529 num-slots = <1>;
530 non-removable;
531 samsung,dw-mshc-ciu-div = <3>;
532 samsung,dw-mshc-sdr-timing = <2 3>;
533 samsung,dw-mshc-ddr-timing = <1 2>;
534 pinctrl-names = "default";
535 pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4 &sd0_bus8>;
536 bus-width = <8>;
537 cap-mmc-highspeed;
538};
539
540/* uSD card */
541&mmc_2 {
542 status = "okay";
543 num-slots = <1>;
544 card-detect-delay = <200>;
545 samsung,dw-mshc-ciu-div = <3>;
546 samsung,dw-mshc-sdr-timing = <2 3>;
547 samsung,dw-mshc-ddr-timing = <1 2>;
548 pinctrl-names = "default";
549 pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
550 bus-width = <4>;
551 wp-gpios = <&gpc2 1 GPIO_ACTIVE_HIGH>;
552 cap-sd-highspeed;
553};
554
555/*
556 * On Snow we've got SIP WiFi and so can keep drive strengths low to
557 * reduce EMI.
558 *
559 * WiFi SDIO module
560 */
561&mmc_3 {
562 status = "okay";
563 num-slots = <1>;
564 non-removable;
565 cap-sdio-irq;
566 keep-power-in-suspend;
567 samsung,dw-mshc-ciu-div = <3>;
568 samsung,dw-mshc-sdr-timing = <2 3>;
569 samsung,dw-mshc-ddr-timing = <1 2>;
570 pinctrl-names = "default";
571 pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4 &wifi_en &wifi_rst>;
572 bus-width = <4>;
573 cap-sd-highspeed;
574 mmc-pwrseq = <&mmc3_pwrseq>;
575};
576
577&pinctrl_0 {
578 wifi_en: wifi-en {
579 samsung,pins = "gpx0-1";
580 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
581 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
582 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
583 };
584
585 wifi_rst: wifi-rst {
586 samsung,pins = "gpx0-2";
587 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
588 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
589 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
590 };
591
592 power_key_irq: power-key-irq {
593 samsung,pins = "gpx1-3";
594 samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
595 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
596 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
597 };
598
599 ec_irq: ec-irq {
600 samsung,pins = "gpx1-6";
601 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
602 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
603 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
604 };
605
606 tps65090_irq: tps65090-irq {
607 samsung,pins = "gpx2-6";
608 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
609 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
610 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
611 };
612
613 usb3_vbus_en: usb3-vbus-en {
614 samsung,pins = "gpx2-7";
615 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
616 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
617 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
618 };
619
620 max77686_irq: max77686-irq {
621 samsung,pins = "gpx3-2";
622 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
623 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
624 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
625 };
626
627 lid_irq: lid-irq {
628 samsung,pins = "gpx3-5";
629 samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
630 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
631 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
632 };
633
634 hdmi_hpd_irq: hdmi-hpd-irq {
635 samsung,pins = "gpx3-7";
636 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
637 samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
638 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
639 };
640};
641
642&pinctrl_1 {
643 arb_their_claim: arb-their-claim {
644 samsung,pins = "gpe0-4";
645 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
646 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
647 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
648 };
649
650 arb_our_claim: arb-our-claim {
651 samsung,pins = "gpf0-3";
652 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
653 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
654 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
655 };
656};
657
658&rtc {
659 status = "okay";
660 clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>;
661 clock-names = "rtc", "rtc_src";
662};
663
664&sd3_bus4 {
665 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
666};
667
668&sd3_clk {
669 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
670};
671
672&sd3_cmd {
673 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
674 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
675};
676
677&spi_1 {
678 status = "okay";
679 samsung,spi-src-clk = <0>;
680 num-cs = <1>;
681 cs-gpios = <&gpa2 5 GPIO_ACTIVE_HIGH>;
682};
683
684&usbdrd_dwc3 {
685 dr_mode = "host";
686};
687
688&usbdrd_phy {
689 vbus-supply = <&usb3_vbus_reg>;
690};
691
692#include "cros-ec-keyboard.dtsi"