1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Google Snow board device tree source
4 *
5 * Copyright (c) 2012 Google, Inc
6 */
7
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/maxim,max77686.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/sound/samsung-i2s.h>
13 #include "exynos5250.dtsi"
14
15 / {
16 aliases {
17 i2c104 = &i2c_104;
18 mmc0 = &mmc_0; /* eMMC */
19 mmc1 = &mmc_2; /* SD */
20 mmc2 = &mmc_3; /* WiFi */
21 };
22
23 memory@40000000 {
24 device_type = "memory";
25 reg = <0x40000000 0x80000000>;
26 };
27
28 chosen {
29 bootargs = "console=tty1";
30 stdout-path = "serial3:115200n8";
31 };
32
33 gpio-keys {
34 compatible = "gpio-keys";
35 pinctrl-names = "default";
36 pinctrl-0 = <&power_key_irq &lid_irq>;
37
38 power-key {
39 label = "Power";
40 gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
41 linux,code = <KEY_POWER>;
42 wakeup-source;
43 };
44
45 lid-switch {
46 label = "Lid";
47 gpios = <&gpx3 5 GPIO_ACTIVE_LOW>;
48 linux,input-type = <5>; /* EV_SW */
49 linux,code = <0>; /* SW_LID */
50 debounce-interval = <1>;
51 wakeup-source;
52 };
53 };
54
55 vbat: vbat-fixed-regulator {
56 compatible = "regulator-fixed";
57 regulator-name = "vbat-supply";
58 regulator-boot-on;
59 };
60
61 i2c-arbitrator {
62 compatible = "i2c-arb-gpio-challenge";
63 i2c-parent = <&i2c_4>;
64
65 our-claim-gpios = <&gpf0 3 GPIO_ACTIVE_LOW>;
66 their-claim-gpios = <&gpe0 4 GPIO_ACTIVE_LOW>;
67 slew-delay-us = <10>;
68 wait-retry-us = <3000>;
69 wait-free-us = <50000>;
70
71 pinctrl-names = "default";
72 pinctrl-0 = <&arb_our_claim &arb_their_claim>;
73
74 /* Use ID 104 as a hint that we're on physical bus 4 */
75 i2c_104: i2c-arb {
76 #address-cells = <1>;
77 #size-cells = <0>;
78
79 battery: sbs-battery@b {
80 compatible = "sbs,sbs-battery";
81 reg = <0xb>;
82 sbs,poll-retry-count = <1>;
83 };
84
85 cros_ec: embedded-controller@1e {
86 compatible = "google,cros-ec-i2c";
87 reg = <0x1e>;
88 interrupts = <6 IRQ_TYPE_NONE>;
89 interrupt-parent = <&gpx1>;
90 pinctrl-names = "default";
91 pinctrl-0 = <&ec_irq>;
92 wakeup-source;
93 };
94
95 power-regulator@48 {
96 compatible = "ti,tps65090";
97 reg = <0x48>;
98
99 /*
100 * Config irq to disable internal pulls
101 * even though we run in polling mode.
102 */
103 pinctrl-names = "default";
104 pinctrl-0 = <&tps65090_irq>;
105
106 vsys1-supply = <&vbat>;
107 vsys2-supply = <&vbat>;
108 vsys3-supply = <&vbat>;
109 infet1-supply = <&vbat>;
110 infet2-supply = <&vbat>;
111 infet3-supply = <&vbat>;
112 infet4-supply = <&vbat>;
113 infet5-supply = <&vbat>;
114 infet6-supply = <&vbat>;
115 infet7-supply = <&vbat>;
116 vsys-l1-supply = <&vbat>;
117 vsys-l2-supply = <&vbat>;
118
119 regulators {
120 dcdc1 {
121 ti,enable-ext-control;
122 };
123 dcdc2 {
124 ti,enable-ext-control;
125 };
126 dcdc3 {
127 ti,enable-ext-control;
128 };
129 fet1: fet1 {
130 regulator-name = "vcd_led";
131 ti,overcurrent-wait = <3>;
132 };
133 tps65090_fet2: fet2 {
134 regulator-name = "video_mid";
135 regulator-always-on;
136 ti,overcurrent-wait = <3>;
137 };
138 fet3 {
139 regulator-name = "wwan_r";
140 regulator-always-on;
141 ti,overcurrent-wait = <3>;
142 };
143 fet4 {
144 regulator-name = "sdcard";
145 ti,overcurrent-wait = <3>;
146 };
147 fet5 {
148 regulator-name = "camout";
149 regulator-always-on;
150 ti,overcurrent-wait = <3>;
151 };
152 fet6: fet6 {
153 regulator-name = "lcd_vdd";
154 ti,overcurrent-wait = <3>;
155 };
156 tps65090_fet7: fet7 {
157 regulator-name = "video_mid_1a";
158 regulator-always-on;
159 ti,overcurrent-wait = <3>;
160 };
161 ldo1 {
162 };
163 ldo2 {
164 };
165 };
166
167 charger {
168 compatible = "ti,tps65090-charger";
169 };
170 };
171 };
172 };
173
174 sound {
175 samsung,i2s-controller = <&i2s0>;
176 };
177
178 usb3_vbus_reg: regulator-usb3 {
179 compatible = "regulator-fixed";
180 regulator-name = "P5.0V_USB3CON";
181 regulator-min-microvolt = <5000000>;
182 regulator-max-microvolt = <5000000>;
183 gpio = <&gpx2 7 GPIO_ACTIVE_HIGH>;
184 pinctrl-names = "default";
185 pinctrl-0 = <&usb3_vbus_en>;
186 enable-active-high;
187 };
188
189 fixed-rate-clocks {
190 xxti {
191 compatible = "samsung,clock-xxti";
192 clock-frequency = <24000000>;
193 };
194 };
195
196 backlight: backlight {
197 compatible = "pwm-backlight";
198 pwms = <&pwm 0 1000000 0>;
199 brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
200 default-brightness-level = <7>;
201 enable-gpios = <&gpx3 0 GPIO_ACTIVE_HIGH>;
202 power-supply = <&fet1>;
203 pinctrl-0 = <&pwm0_out>;
204 pinctrl-names = "default";
205 };
206
207 panel: panel {
208 compatible = "auo,b116xw03";
209 power-supply = <&fet6>;
210 backlight = <&backlight>;
211
212 port {
213 panel_in: endpoint {
214 remote-endpoint = <&bridge_out>;
215 };
216 };
217 };
218
219 mmc3_pwrseq: mmc3-pwrseq {
220 compatible = "mmc-pwrseq-simple";
221 reset-gpios = <&gpx0 2 GPIO_ACTIVE_LOW>, /* WIFI_RSTn */
222 <&gpx0 1 GPIO_ACTIVE_LOW>; /* WIFI_EN */
223 clocks = <&max77686 MAX77686_CLK_PMIC>;
224 clock-names = "ext_clock";
225 };
226 };
227
228 &clock {
229 assigned-clocks = <&clock CLK_FOUT_EPLL>;
230 assigned-clock-rates = <49152000>;
231 };
232
233 &clock_audss {
234 assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>;
235 assigned-clock-parents = <&clock CLK_FOUT_EPLL>;
236 };
237
238 &cpu0 {
239 cpu0-supply = <&buck2_reg>;
240 };
241
242 &dp {
243 status = "okay";
244 pinctrl-names = "default";
245 pinctrl-0 = <&dp_hpd>;
246 samsung,color-space = <0>;
247 samsung,color-depth = <1>;
248 samsung,link-rate = <0x0a>;
249 samsung,lane-count = <2>;
250 hpd-gpios = <&gpx0 7 GPIO_ACTIVE_HIGH>;
251
252 ports {
253 port {
254 dp_out: endpoint {
255 remote-endpoint = <&bridge_in>;
256 };
257 };
258 };
259 };
260
261 &ehci {
262 samsung,vbus-gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
263 };
264
265 &fimd {
266 status = "okay";
267 samsung,invert-vclk;
268 };
269
270 &hdmi {
271 status = "okay";
272 hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
273 pinctrl-names = "default";
274 pinctrl-0 = <&hdmi_hpd_irq>;
275 ddc = <&i2c_2>;
276 hdmi-en-supply = <&tps65090_fet7>;
277 vdd-supply = <&ldo8_reg>;
278 vdd_osc-supply = <&ldo10_reg>;
279 vdd_pll-supply = <&ldo8_reg>;
280 };
281
282 &hdmicec {
283 status = "okay";
284 };
285
286 &i2c_0 {
287 status = "okay";
288 samsung,i2c-sda-delay = <100>;
289 samsung,i2c-max-bus-freq = <378000>;
290
291 max77686: pmic@9 {
292 compatible = "maxim,max77686";
293 interrupt-parent = <&gpx3>;
294 interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
295 pinctrl-names = "default";
296 pinctrl-0 = <&max77686_irq>;
297 wakeup-source;
298 reg = <0x09>;
299 #clock-cells = <1>;
300
301 voltage-regulators {
302 ldo1_reg: LDO1 {
303 regulator-name = "P1.0V_LDO_OUT1";
304 regulator-min-microvolt = <1000000>;
305 regulator-max-microvolt = <1000000>;
306 regulator-always-on;
307 };
308
309 ldo2_reg: LDO2 {
310 regulator-name = "P1.8V_LDO_OUT2";
311 regulator-min-microvolt = <1800000>;
312 regulator-max-microvolt = <1800000>;
313 regulator-always-on;
314 };
315
316 ldo3_reg: LDO3 {
317 regulator-name = "P1.8V_LDO_OUT3";
318 regulator-min-microvolt = <1800000>;
319 regulator-max-microvolt = <1800000>;
320 regulator-always-on;
321 };
322
323 ldo7_reg: LDO7 {
324 regulator-name = "P1.1V_LDO_OUT7";
325 regulator-min-microvolt = <1100000>;
326 regulator-max-microvolt = <1100000>;
327 regulator-always-on;
328 };
329
330 ldo8_reg: LDO8 {
331 regulator-name = "P1.0V_LDO_OUT8";
332 regulator-min-microvolt = <1000000>;
333 regulator-max-microvolt = <1000000>;
334 regulator-always-on;
335 };
336
337 ldo10_reg: LDO10 {
338 regulator-name = "P1.8V_LDO_OUT10";
339 regulator-min-microvolt = <1800000>;
340 regulator-max-microvolt = <1800000>;
341 regulator-always-on;
342 };
343
344 ldo12_reg: LDO12 {
345 regulator-name = "P3.0V_LDO_OUT12";
346 regulator-min-microvolt = <3000000>;
347 regulator-max-microvolt = <3000000>;
348 regulator-always-on;
349 };
350
351 ldo14_reg: LDO14 {
352 regulator-name = "P1.8V_LDO_OUT14";
353 regulator-min-microvolt = <1800000>;
354 regulator-max-microvolt = <1800000>;
355 regulator-always-on;
356 };
357
358 ldo15_reg: LDO15 {
359 regulator-name = "P1.0V_LDO_OUT15";
360 regulator-min-microvolt = <1000000>;
361 regulator-max-microvolt = <1000000>;
362 regulator-always-on;
363 };
364
365 ldo16_reg: LDO16 {
366 regulator-name = "P1.8V_LDO_OUT16";
367 regulator-min-microvolt = <1800000>;
368 regulator-max-microvolt = <1800000>;
369 regulator-always-on;
370 };
371
372 buck1_reg: BUCK1 {
373 regulator-name = "vdd_mif";
374 regulator-min-microvolt = <950000>;
375 regulator-max-microvolt = <1300000>;
376 regulator-always-on;
377 regulator-boot-on;
378 };
379
380 buck2_reg: BUCK2 {
381 regulator-name = "vdd_arm";
382 regulator-min-microvolt = <850000>;
383 regulator-max-microvolt = <1350000>;
384 regulator-always-on;
385 regulator-boot-on;
386 };
387
388 buck3_reg: BUCK3 {
389 regulator-name = "vdd_int";
390 regulator-min-microvolt = <900000>;
391 regulator-max-microvolt = <1200000>;
392 regulator-always-on;
393 regulator-boot-on;
394 };
395
396 buck4_reg: BUCK4 {
397 regulator-name = "vdd_g3d";
398 regulator-min-microvolt = <850000>;
399 regulator-max-microvolt = <1300000>;
400 regulator-always-on;
401 regulator-boot-on;
402 };
403
404 buck5_reg: BUCK5 {
405 regulator-name = "P1.8V_BUCK_OUT5";
406 regulator-min-microvolt = <1800000>;
407 regulator-max-microvolt = <1800000>;
408 regulator-always-on;
409 regulator-boot-on;
410 };
411
412 buck6_reg: BUCK6 {
413 regulator-name = "P1.35V_BUCK_OUT6";
414 regulator-min-microvolt = <1350000>;
415 regulator-max-microvolt = <1350000>;
416 regulator-always-on;
417 };
418
419 buck7_reg: BUCK7 {
420 regulator-name = "P2.0V_BUCK_OUT7";
421 regulator-min-microvolt = <2000000>;
422 regulator-max-microvolt = <2000000>;
423 regulator-always-on;
424 };
425
426 buck8_reg: BUCK8 {
427 regulator-name = "P2.85V_BUCK_OUT8";
428 regulator-min-microvolt = <2850000>;
429 regulator-max-microvolt = <2850000>;
430 regulator-always-on;
431 };
432 };
433 };
434 };
435
436 &i2c_1 {
437 status = "okay";
438 samsung,i2c-sda-delay = <100>;
439 samsung,i2c-max-bus-freq = <378000>;
440
441 trackpad@67 {
442 reg = <0x67>;
443 compatible = "cypress,cyapa";
444 interrupts = <2 IRQ_TYPE_NONE>;
445 interrupt-parent = <&gpx1>;
446 wakeup-source;
447 };
448 };
449
450 /*
451 * Disabled pullups since external part has its own pullups and
452 * double-pulling gets us out of spec in some cases.
453 */
454 &i2c2_bus {
455 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
456 };
457
458 &i2c_2 {
459 status = "okay";
460 /* used by HDMI DDC */
461 samsung,i2c-sda-delay = <100>;
462 samsung,i2c-max-bus-freq = <66000>;
463 };
464
465 &i2c_3 {
466 status = "okay";
467 samsung,i2c-sda-delay = <100>;
468 samsung,i2c-max-bus-freq = <66000>;
469 };
470
471 &i2c_4 {
472 status = "okay";
473 samsung,i2c-sda-delay = <100>;
474 samsung,i2c-max-bus-freq = <66000>;
475 };
476
477 &i2c_5 {
478 status = "okay";
479 samsung,i2c-sda-delay = <100>;
480 samsung,i2c-max-bus-freq = <66000>;
481 };
482
483 &i2c_7 {
484 status = "okay";
485 samsung,i2c-sda-delay = <100>;
486 samsung,i2c-max-bus-freq = <66000>;
487
488 ptn3460: lvds-bridge@20 {
489 compatible = "nxp,ptn3460";
490 reg = <0x20>;
491 powerdown-gpios = <&gpy2 5 GPIO_ACTIVE_HIGH>;
492 reset-gpios = <&gpx1 5 GPIO_ACTIVE_HIGH>;
493 edid-emulation = <5>;
494
495 ports {
496 #address-cells = <1>;
497 #size-cells = <0>;
498
499 port@0 {
500 reg = <0>;
501
502 bridge_out: endpoint {
503 remote-endpoint = <&panel_in>;
504 };
505 };
506
507 port@1 {
508 reg = <1>;
509
510 bridge_in: endpoint {
511 remote-endpoint = <&dp_out>;
512 };
513 };
514 };
515 };
516 };
517
518 &i2c_8 {
519 status = "okay";
520 /* used by HDMI PHY */
521 samsung,i2c-sda-delay = <100>;
522 samsung,i2c-max-bus-freq = <378000>;
523 };
524
525 &i2s0 {
526 assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>;
527 assigned-clock-parents = <&clock_audss EXYNOS_I2S_BUS>;
528 status = "okay";
529 };
530
531 &mali {
532 mali-supply = <&buck4_reg>;
533 status = "okay";
534 };
535
536 &mixer {
537 status = "okay";
538 };
539
540 /* eMMC flash */
541 &mmc_0 {
542 status = "okay";
543 non-removable;
544 samsung,dw-mshc-ciu-div = <3>;
545 samsung,dw-mshc-sdr-timing = <2 3>;
546 samsung,dw-mshc-ddr-timing = <1 2>;
547 pinctrl-names = "default";
548 pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4 &sd0_bus8>;
549 bus-width = <8>;
550 cap-mmc-highspeed;
551 mmc-ddr-1_8v;
552 };
553
554 /* uSD card */
555 &mmc_2 {
556 status = "okay";
557 card-detect-delay = <200>;
558 samsung,dw-mshc-ciu-div = <3>;
559 samsung,dw-mshc-sdr-timing = <2 3>;
560 samsung,dw-mshc-ddr-timing = <1 2>;
561 pinctrl-names = "default";
562 pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
563 bus-width = <4>;
564 wp-gpios = <&gpc2 1 GPIO_ACTIVE_HIGH>;
565 cap-sd-highspeed;
566 };
567
568 /*
569 * On Snow we've got SIP WiFi and so can keep drive strengths low to
570 * reduce EMI.
571 *
572 * WiFi SDIO module
573 */
574 &mmc_3 {
575 status = "okay";
576 non-removable;
577 cap-sdio-irq;
578 keep-power-in-suspend;
579 samsung,dw-mshc-ciu-div = <3>;
580 samsung,dw-mshc-sdr-timing = <2 3>;
581 samsung,dw-mshc-ddr-timing = <1 2>;
582 pinctrl-names = "default";
583 pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4 &wifi_en &wifi_rst>;
584 bus-width = <4>;
585 cap-sd-highspeed;
586 mmc-pwrseq = <&mmc3_pwrseq>;
587 };
588
589 &pinctrl_0 {
590 wifi_en: wifi-en-pins {
591 samsung,pins = "gpx0-1";
592 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
593 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
594 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
595 };
596
597 wifi_rst: wifi-rst-pins {
598 samsung,pins = "gpx0-2";
599 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
600 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
601 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
602 };
603
604 power_key_irq: power-key-irq-pins {
605 samsung,pins = "gpx1-3";
606 samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
607 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
608 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
609 };
610
611 ec_irq: ec-irq-pins {
612 samsung,pins = "gpx1-6";
613 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
614 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
615 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
616 };
617
618 tps65090_irq: tps65090-irq-pins {
619 samsung,pins = "gpx2-6";
620 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
621 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
622 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
623 };
624
625 usb3_vbus_en: usb3-vbus-en-pins {
626 samsung,pins = "gpx2-7";
627 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
628 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
629 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
630 };
631
632 max77686_irq: max77686-irq-pins {
633 samsung,pins = "gpx3-2";
634 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
635 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
636 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
637 };
638
639 lid_irq: lid-irq-pins {
640 samsung,pins = "gpx3-5";
641 samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
642 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
643 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
644 };
645
646 hdmi_hpd_irq: hdmi-hpd-irq-pins {
647 samsung,pins = "gpx3-7";
648 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
649 samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
650 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
651 };
652 };
653
654 &pinctrl_1 {
655 arb_their_claim: arb-their-claim-pins {
656 samsung,pins = "gpe0-4";
657 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
658 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
659 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
660 };
661
662 arb_our_claim: arb-our-claim-pins {
663 samsung,pins = "gpf0-3";
664 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
665 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
666 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
667 };
668 };
669
670 &pmu_system_controller {
671 assigned-clocks = <&pmu_system_controller 0>;
672 assigned-clock-parents = <&clock CLK_FIN_PLL>;
673 };
674
675 &rtc {
676 status = "okay";
677 clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>;
678 clock-names = "rtc", "rtc_src";
679 };
680
681 &sd3_bus4 {
682 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
683 };
684
685 &sd3_clk {
686 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
687 };
688
689 &sd3_cmd {
690 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
691 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
692 };
693
694 &spi_1 {
695 status = "okay";
696 samsung,spi-src-clk = <0>;
697 num-cs = <1>;
698 cs-gpios = <&gpa2 5 GPIO_ACTIVE_HIGH>;
699 };
700
701 &usbdrd {
702 vdd10-supply = <&ldo15_reg>;
703 vdd33-supply = <&ldo12_reg>;
704 };
705
706 &usbdrd_dwc3 {
707 dr_mode = "host";
708 };
709
710 &usbdrd_phy {
711 vbus-supply = <&usb3_vbus_reg>;
712 };
713
714 #include "../cros-ec-keyboard.dtsi"
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