tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 #address-cells = <1>;
64 #size-cells = <0>;
65
66 i2c-parent = <&i2c_4>;
67
68 our-claim-gpio = <&gpf0 3 GPIO_ACTIVE_LOW>;
69 their-claim-gpios = <&gpe0 4 GPIO_ACTIVE_LOW>;
70 slew-delay-us = <10>;
71 wait-retry-us = <3000>;
72 wait-free-us = <50000>;
73
74 pinctrl-names = "default";
75 pinctrl-0 = <&arb_our_claim &arb_their_claim>;
76
77 /* Use ID 104 as a hint that we're on physical bus 4 */
78 i2c_104: i2c@0 {
79 reg = <0>;
80 #address-cells = <1>;
81 #size-cells = <0>;
82
83 battery: sbs-battery@b {
84 compatible = "sbs,sbs-battery";
85 reg = <0xb>;
86 sbs,poll-retry-count = <1>;
87 };
88
89 cros_ec: embedded-controller@1e {
90 compatible = "google,cros-ec-i2c";
91 reg = <0x1e>;
92 interrupts = <6 IRQ_TYPE_NONE>;
93 interrupt-parent = <&gpx1>;
94 pinctrl-names = "default";
95 pinctrl-0 = <&ec_irq>;
96 wakeup-source;
97 };
98
99 power-regulator@48 {
100 compatible = "ti,tps65090";
101 reg = <0x48>;
102
103 /*
104 * Config irq to disable internal pulls
105 * even though we run in polling mode.
106 */
107 pinctrl-names = "default";
108 pinctrl-0 = <&tps65090_irq>;
109
110 vsys1-supply = <&vbat>;
111 vsys2-supply = <&vbat>;
112 vsys3-supply = <&vbat>;
113 infet1-supply = <&vbat>;
114 infet2-supply = <&vbat>;
115 infet3-supply = <&vbat>;
116 infet4-supply = <&vbat>;
117 infet5-supply = <&vbat>;
118 infet6-supply = <&vbat>;
119 infet7-supply = <&vbat>;
120 vsys-l1-supply = <&vbat>;
121 vsys-l2-supply = <&vbat>;
122
123 regulators {
124 dcdc1 {
125 ti,enable-ext-control;
126 };
127 dcdc2 {
128 ti,enable-ext-control;
129 };
130 dcdc3 {
131 ti,enable-ext-control;
132 };
133 fet1: fet1 {
134 regulator-name = "vcd_led";
135 ti,overcurrent-wait = <3>;
136 };
137 tps65090_fet2: fet2 {
138 regulator-name = "video_mid";
139 regulator-always-on;
140 ti,overcurrent-wait = <3>;
141 };
142 fet3 {
143 regulator-name = "wwan_r";
144 regulator-always-on;
145 ti,overcurrent-wait = <3>;
146 };
147 fet4 {
148 regulator-name = "sdcard";
149 ti,overcurrent-wait = <3>;
150 };
151 fet5 {
152 regulator-name = "camout";
153 regulator-always-on;
154 ti,overcurrent-wait = <3>;
155 };
156 fet6: fet6 {
157 regulator-name = "lcd_vdd";
158 ti,overcurrent-wait = <3>;
159 };
160 tps65090_fet7: fet7 {
161 regulator-name = "video_mid_1a";
162 regulator-always-on;
163 ti,overcurrent-wait = <3>;
164 };
165 ldo1 {
166 };
167 ldo2 {
168 };
169 };
170
171 charger {
172 compatible = "ti,tps65090-charger";
173 };
174 };
175 };
176 };
177
178 sound {
179 samsung,i2s-controller = <&i2s0>;
180 };
181
182 usb3_vbus_reg: regulator-usb3 {
183 compatible = "regulator-fixed";
184 regulator-name = "P5.0V_USB3CON";
185 regulator-min-microvolt = <5000000>;
186 regulator-max-microvolt = <5000000>;
187 gpio = <&gpx2 7 GPIO_ACTIVE_HIGH>;
188 pinctrl-names = "default";
189 pinctrl-0 = <&usb3_vbus_en>;
190 enable-active-high;
191 };
192
193 fixed-rate-clocks {
194 xxti {
195 compatible = "samsung,clock-xxti";
196 clock-frequency = <24000000>;
197 };
198 };
199
200 backlight: backlight {
201 compatible = "pwm-backlight";
202 pwms = <&pwm 0 1000000 0>;
203 brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
204 default-brightness-level = <7>;
205 enable-gpios = <&gpx3 0 GPIO_ACTIVE_HIGH>;
206 power-supply = <&fet1>;
207 pinctrl-0 = <&pwm0_out>;
208 pinctrl-names = "default";
209 };
210
211 panel: panel {
212 compatible = "auo,b116xw03";
213 power-supply = <&fet6>;
214 backlight = <&backlight>;
215
216 port {
217 panel_in: endpoint {
218 remote-endpoint = <&bridge_out>;
219 };
220 };
221 };
222
223 mmc3_pwrseq: mmc3-pwrseq {
224 compatible = "mmc-pwrseq-simple";
225 reset-gpios = <&gpx0 2 GPIO_ACTIVE_LOW>, /* WIFI_RSTn */
226 <&gpx0 1 GPIO_ACTIVE_LOW>; /* WIFI_EN */
227 clocks = <&max77686 MAX77686_CLK_PMIC>;
228 clock-names = "ext_clock";
229 };
230};
231
232&clock {
233 assigned-clocks = <&clock CLK_FOUT_EPLL>;
234 assigned-clock-rates = <49152000>;
235};
236
237&clock_audss {
238 assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>;
239 assigned-clock-parents = <&clock CLK_FOUT_EPLL>;
240};
241
242&cpu0 {
243 cpu0-supply = <&buck2_reg>;
244};
245
246&dp {
247 status = "okay";
248 pinctrl-names = "default";
249 pinctrl-0 = <&dp_hpd>;
250 samsung,color-space = <0>;
251 samsung,color-depth = <1>;
252 samsung,link-rate = <0x0a>;
253 samsung,lane-count = <2>;
254 hpd-gpios = <&gpx0 7 GPIO_ACTIVE_HIGH>;
255
256 ports {
257 port {
258 dp_out: endpoint {
259 remote-endpoint = <&bridge_in>;
260 };
261 };
262 };
263};
264
265&ehci {
266 samsung,vbus-gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
267};
268
269&fimd {
270 status = "okay";
271 samsung,invert-vclk;
272};
273
274&hdmi {
275 status = "okay";
276 hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
277 pinctrl-names = "default";
278 pinctrl-0 = <&hdmi_hpd_irq>;
279 ddc = <&i2c_2>;
280 hdmi-en-supply = <&tps65090_fet7>;
281 vdd-supply = <&ldo8_reg>;
282 vdd_osc-supply = <&ldo10_reg>;
283 vdd_pll-supply = <&ldo8_reg>;
284};
285
286&hdmicec {
287 status = "okay";
288};
289
290&i2c_0 {
291 status = "okay";
292 samsung,i2c-sda-delay = <100>;
293 samsung,i2c-max-bus-freq = <378000>;
294
295 max77686: pmic@9 {
296 compatible = "maxim,max77686";
297 interrupt-parent = <&gpx3>;
298 interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
299 pinctrl-names = "default";
300 pinctrl-0 = <&max77686_irq>;
301 wakeup-source;
302 reg = <0x09>;
303 #clock-cells = <1>;
304
305 voltage-regulators {
306 ldo1_reg: LDO1 {
307 regulator-name = "P1.0V_LDO_OUT1";
308 regulator-min-microvolt = <1000000>;
309 regulator-max-microvolt = <1000000>;
310 regulator-always-on;
311 };
312
313 ldo2_reg: LDO2 {
314 regulator-name = "P1.8V_LDO_OUT2";
315 regulator-min-microvolt = <1800000>;
316 regulator-max-microvolt = <1800000>;
317 regulator-always-on;
318 };
319
320 ldo3_reg: LDO3 {
321 regulator-name = "P1.8V_LDO_OUT3";
322 regulator-min-microvolt = <1800000>;
323 regulator-max-microvolt = <1800000>;
324 regulator-always-on;
325 };
326
327 ldo7_reg: LDO7 {
328 regulator-name = "P1.1V_LDO_OUT7";
329 regulator-min-microvolt = <1100000>;
330 regulator-max-microvolt = <1100000>;
331 regulator-always-on;
332 };
333
334 ldo8_reg: LDO8 {
335 regulator-name = "P1.0V_LDO_OUT8";
336 regulator-min-microvolt = <1000000>;
337 regulator-max-microvolt = <1000000>;
338 regulator-always-on;
339 };
340
341 ldo10_reg: LDO10 {
342 regulator-name = "P1.8V_LDO_OUT10";
343 regulator-min-microvolt = <1800000>;
344 regulator-max-microvolt = <1800000>;
345 regulator-always-on;
346 };
347
348 ldo12_reg: LDO12 {
349 regulator-name = "P3.0V_LDO_OUT12";
350 regulator-min-microvolt = <3000000>;
351 regulator-max-microvolt = <3000000>;
352 regulator-always-on;
353 };
354
355 ldo14_reg: LDO14 {
356 regulator-name = "P1.8V_LDO_OUT14";
357 regulator-min-microvolt = <1800000>;
358 regulator-max-microvolt = <1800000>;
359 regulator-always-on;
360 };
361
362 ldo15_reg: LDO15 {
363 regulator-name = "P1.0V_LDO_OUT15";
364 regulator-min-microvolt = <1000000>;
365 regulator-max-microvolt = <1000000>;
366 regulator-always-on;
367 };
368
369 ldo16_reg: LDO16 {
370 regulator-name = "P1.8V_LDO_OUT16";
371 regulator-min-microvolt = <1800000>;
372 regulator-max-microvolt = <1800000>;
373 regulator-always-on;
374 };
375
376 buck1_reg: BUCK1 {
377 regulator-name = "vdd_mif";
378 regulator-min-microvolt = <950000>;
379 regulator-max-microvolt = <1300000>;
380 regulator-always-on;
381 regulator-boot-on;
382 };
383
384 buck2_reg: BUCK2 {
385 regulator-name = "vdd_arm";
386 regulator-min-microvolt = <850000>;
387 regulator-max-microvolt = <1350000>;
388 regulator-always-on;
389 regulator-boot-on;
390 };
391
392 buck3_reg: BUCK3 {
393 regulator-name = "vdd_int";
394 regulator-min-microvolt = <900000>;
395 regulator-max-microvolt = <1200000>;
396 regulator-always-on;
397 regulator-boot-on;
398 };
399
400 buck4_reg: BUCK4 {
401 regulator-name = "vdd_g3d";
402 regulator-min-microvolt = <850000>;
403 regulator-max-microvolt = <1300000>;
404 regulator-always-on;
405 regulator-boot-on;
406 };
407
408 buck5_reg: BUCK5 {
409 regulator-name = "P1.8V_BUCK_OUT5";
410 regulator-min-microvolt = <1800000>;
411 regulator-max-microvolt = <1800000>;
412 regulator-always-on;
413 regulator-boot-on;
414 };
415
416 buck6_reg: BUCK6 {
417 regulator-name = "P1.35V_BUCK_OUT6";
418 regulator-min-microvolt = <1350000>;
419 regulator-max-microvolt = <1350000>;
420 regulator-always-on;
421 };
422
423 buck7_reg: BUCK7 {
424 regulator-name = "P2.0V_BUCK_OUT7";
425 regulator-min-microvolt = <2000000>;
426 regulator-max-microvolt = <2000000>;
427 regulator-always-on;
428 };
429
430 buck8_reg: BUCK8 {
431 regulator-name = "P2.85V_BUCK_OUT8";
432 regulator-min-microvolt = <2850000>;
433 regulator-max-microvolt = <2850000>;
434 regulator-always-on;
435 };
436 };
437 };
438};
439
440&i2c_1 {
441 status = "okay";
442 samsung,i2c-sda-delay = <100>;
443 samsung,i2c-max-bus-freq = <378000>;
444
445 trackpad@67 {
446 reg = <0x67>;
447 compatible = "cypress,cyapa";
448 interrupts = <2 IRQ_TYPE_NONE>;
449 interrupt-parent = <&gpx1>;
450 wakeup-source;
451 };
452};
453
454/*
455 * Disabled pullups since external part has its own pullups and
456 * double-pulling gets us out of spec in some cases.
457 */
458&i2c2_bus {
459 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
460};
461
462&i2c_2 {
463 status = "okay";
464 /* used by HDMI DDC */
465 samsung,i2c-sda-delay = <100>;
466 samsung,i2c-max-bus-freq = <66000>;
467};
468
469&i2c_3 {
470 status = "okay";
471 samsung,i2c-sda-delay = <100>;
472 samsung,i2c-max-bus-freq = <66000>;
473};
474
475&i2c_4 {
476 status = "okay";
477 samsung,i2c-sda-delay = <100>;
478 samsung,i2c-max-bus-freq = <66000>;
479};
480
481&i2c_5 {
482 status = "okay";
483 samsung,i2c-sda-delay = <100>;
484 samsung,i2c-max-bus-freq = <66000>;
485};
486
487&i2c_7 {
488 status = "okay";
489 samsung,i2c-sda-delay = <100>;
490 samsung,i2c-max-bus-freq = <66000>;
491
492 ptn3460: lvds-bridge@20 {
493 compatible = "nxp,ptn3460";
494 reg = <0x20>;
495 powerdown-gpios = <&gpy2 5 GPIO_ACTIVE_HIGH>;
496 reset-gpios = <&gpx1 5 GPIO_ACTIVE_HIGH>;
497 edid-emulation = <5>;
498
499 ports {
500 #address-cells = <1>;
501 #size-cells = <0>;
502
503 port@0 {
504 reg = <0>;
505
506 bridge_out: endpoint {
507 remote-endpoint = <&panel_in>;
508 };
509 };
510
511 port@1 {
512 reg = <1>;
513
514 bridge_in: endpoint {
515 remote-endpoint = <&dp_out>;
516 };
517 };
518 };
519 };
520};
521
522&i2c_8 {
523 status = "okay";
524 /* used by HDMI PHY */
525 samsung,i2c-sda-delay = <100>;
526 samsung,i2c-max-bus-freq = <378000>;
527};
528
529&i2s0 {
530 assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>;
531 assigned-clock-parents = <&clock_audss EXYNOS_I2S_BUS>;
532 status = "okay";
533};
534
535&mali {
536 mali-supply = <&buck4_reg>;
537 status = "okay";
538};
539
540&mixer {
541 status = "okay";
542};
543
544/* eMMC flash */
545&mmc_0 {
546 status = "okay";
547 non-removable;
548 samsung,dw-mshc-ciu-div = <3>;
549 samsung,dw-mshc-sdr-timing = <2 3>;
550 samsung,dw-mshc-ddr-timing = <1 2>;
551 pinctrl-names = "default";
552 pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4 &sd0_bus8>;
553 bus-width = <8>;
554 cap-mmc-highspeed;
555 mmc-ddr-1_8v;
556};
557
558/* uSD card */
559&mmc_2 {
560 status = "okay";
561 card-detect-delay = <200>;
562 samsung,dw-mshc-ciu-div = <3>;
563 samsung,dw-mshc-sdr-timing = <2 3>;
564 samsung,dw-mshc-ddr-timing = <1 2>;
565 pinctrl-names = "default";
566 pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
567 bus-width = <4>;
568 wp-gpios = <&gpc2 1 GPIO_ACTIVE_HIGH>;
569 cap-sd-highspeed;
570};
571
572/*
573 * On Snow we've got SIP WiFi and so can keep drive strengths low to
574 * reduce EMI.
575 *
576 * WiFi SDIO module
577 */
578&mmc_3 {
579 status = "okay";
580 non-removable;
581 cap-sdio-irq;
582 keep-power-in-suspend;
583 samsung,dw-mshc-ciu-div = <3>;
584 samsung,dw-mshc-sdr-timing = <2 3>;
585 samsung,dw-mshc-ddr-timing = <1 2>;
586 pinctrl-names = "default";
587 pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4 &wifi_en &wifi_rst>;
588 bus-width = <4>;
589 cap-sd-highspeed;
590 mmc-pwrseq = <&mmc3_pwrseq>;
591};
592
593&pinctrl_0 {
594 wifi_en: wifi-en-pins {
595 samsung,pins = "gpx0-1";
596 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
597 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
598 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
599 };
600
601 wifi_rst: wifi-rst-pins {
602 samsung,pins = "gpx0-2";
603 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
604 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
605 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
606 };
607
608 power_key_irq: power-key-irq-pins {
609 samsung,pins = "gpx1-3";
610 samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
611 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
612 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
613 };
614
615 ec_irq: ec-irq-pins {
616 samsung,pins = "gpx1-6";
617 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
618 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
619 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
620 };
621
622 tps65090_irq: tps65090-irq-pins {
623 samsung,pins = "gpx2-6";
624 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
625 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
626 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
627 };
628
629 usb3_vbus_en: usb3-vbus-en-pins {
630 samsung,pins = "gpx2-7";
631 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
632 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
633 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
634 };
635
636 max77686_irq: max77686-irq-pins {
637 samsung,pins = "gpx3-2";
638 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
639 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
640 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
641 };
642
643 lid_irq: lid-irq-pins {
644 samsung,pins = "gpx3-5";
645 samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
646 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
647 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
648 };
649
650 hdmi_hpd_irq: hdmi-hpd-irq-pins {
651 samsung,pins = "gpx3-7";
652 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
653 samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
654 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
655 };
656};
657
658&pinctrl_1 {
659 arb_their_claim: arb-their-claim-pins {
660 samsung,pins = "gpe0-4";
661 samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
662 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
663 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
664 };
665
666 arb_our_claim: arb-our-claim-pins {
667 samsung,pins = "gpf0-3";
668 samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
669 samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
670 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
671 };
672};
673
674&pmu_system_controller {
675 assigned-clocks = <&pmu_system_controller 0>;
676 assigned-clock-parents = <&clock CLK_FIN_PLL>;
677};
678
679&rtc {
680 status = "okay";
681 clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>;
682 clock-names = "rtc", "rtc_src";
683};
684
685&sd3_bus4 {
686 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
687};
688
689&sd3_clk {
690 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
691};
692
693&sd3_cmd {
694 samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
695 samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
696};
697
698&spi_1 {
699 status = "okay";
700 samsung,spi-src-clk = <0>;
701 num-cs = <1>;
702 cs-gpios = <&gpa2 5 GPIO_ACTIVE_HIGH>;
703};
704
705&usbdrd {
706 vdd10-supply = <&ldo15_reg>;
707 vdd33-supply = <&ldo12_reg>;
708};
709
710&usbdrd_dwc3 {
711 dr_mode = "host";
712};
713
714&usbdrd_phy {
715 vbus-supply = <&usb3_vbus_reg>;
716};
717
718#include "cros-ec-keyboard.dtsi"