1/*
2 * Copyright (C) 2015 Rabeeh Khoury <rabeeh@solid-run.com>
3 *
4 * This file is dual-licensed: you can use it either under the terms
5 * of the GPL or the X11 license, at your option. Note that this dual
6 * licensing only applies to this file, and not this project as a
7 * whole.
8 *
9 *  a) This file is free software; you can redistribute it and/or
10 *     modify it under the terms of the GNU General Public License
11 *     version 2 as published by the Free Software Foundation.
12 *
13 *     This file is distributed in the hope that it will be useful,
14 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *     GNU General Public License for more details.
17 *
18 * Or, alternatively,
19 *
20 *  b) Permission is hereby granted, free of charge, to any person
21 *     obtaining a copy of this software and associated documentation
22 *     files (the "Software"), to deal in the Software without
23 *     restriction, including without limitation the rights to use,
24 *     copy, modify, merge, publish, distribute, sublicense, and/or
25 *     sell copies of the Software, and to permit persons to whom the
26 *     Software is furnished to do so, subject to the following
27 *     conditions:
28 *
29 *     The above copyright notice and this permission notice shall be
30 *     included in all copies or substantial portions of the Software.
31 *
32 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
33 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
34 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
35 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
36 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
37 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
38 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
39 *     OTHER DEALINGS IN THE SOFTWARE.
40 */
41#include <dt-bindings/sound/fsl-imx-audmux.h>
42
43/ {
44	/* Will be filled by the bootloader */
45	memory@10000000 {
46		device_type = "memory";
47		reg = <0x10000000 0>;
48	};
49
50	chosen {
51		stdout-path = &uart1;
52	};
53
54	ir_recv: ir-receiver {
55		compatible = "gpio-ir-receiver";
56		gpios = <&gpio7 9 GPIO_ACTIVE_LOW>;
57		pinctrl-names = "default";
58		pinctrl-0 = <&pinctrl_hummingboard2_gpio7_9>;
59		linux,rc-map-name = "rc-rc6-mce";
60	};
61
62	v_3v2: regulator-v-3v2 {
63		compatible = "regulator-fixed";
64		regulator-always-on;
65		regulator-max-microvolt = <3300000>;
66		regulator-min-microvolt = <3300000>;
67		regulator-name = "v_3v2";
68	};
69
70	v_5v0: regulator-v-5v0 {
71		compatible = "regulator-fixed";
72		regulator-always-on;
73		regulator-max-microvolt = <5000000>;
74		regulator-min-microvolt = <5000000>;
75		regulator-name = "v_5v0";
76	};
77
78	vcc_1p8: regulator-vcc-1p8 {
79		compatible = "regulator-fixed";
80		regulator-always-on;
81		regulator-max-microvolt = <1800000>;
82		regulator-min-microvolt = <1800000>;
83		regulator-name = "vcc_1p8";
84		vin-supply = <&v_3v2>;
85	};
86
87	v_sd: regulator-v-sd {
88		compatible = "regulator-fixed";
89		gpio = <&gpio4 30 GPIO_ACTIVE_HIGH>;
90		pinctrl-names = "default";
91		pinctrl-0 = <&pinctrl_hummingboard2_vmmc>;
92		regulator-boot-on;
93		regulator-max-microvolt = <3300000>;
94		regulator-min-microvolt = <3300000>;
95		regulator-name = "v_sd";
96		startup-delay-us = <1000>;
97		vin-supply = <&v_3v2>;
98	};
99
100	v_usb1: regulator-v-usb1 {
101		compatible = "regulator-fixed";
102		enable-active-high;
103		gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
104		pinctrl-names = "default";
105		pinctrl-0 = <&pinctrl_hummingboard2_usbotg_vbus>;
106		regulator-always-on;
107		regulator-max-microvolt = <5000000>;
108		regulator-min-microvolt = <5000000>;
109		regulator-name = "v_usb1";
110		vin-supply = <&v_5v0>;
111	};
112
113	v_usb2: regulator-v-usb2 {
114		/* USB hub port 1 */
115		compatible = "regulator-fixed";
116		enable-active-high;
117		gpio = <&gpio1 0 GPIO_ACTIVE_HIGH>;
118		pinctrl-names = "default";
119		pinctrl-0 = <&pinctrl_hummingboard2_usbh1_vbus>;
120		regulator-always-on;
121		regulator-max-microvolt = <5000000>;
122		regulator-min-microvolt = <5000000>;
123		regulator-name = "v_usb2";
124		vin-supply = <&v_5v0>;
125	};
126
127	v_usb3: regulator-v-usb3 {
128		/* USB hub port 3 */
129		compatible = "regulator-fixed";
130		enable-active-high;
131		gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>;
132		pinctrl-names = "default";
133		pinctrl-0 = <&pinctrl_hummingboard2_usbh2_vbus>;
134		regulator-always-on;
135		regulator-max-microvolt = <5000000>;
136		regulator-min-microvolt = <5000000>;
137		regulator-name = "v_usb3";
138		vin-supply = <&v_5v0>;
139	};
140
141	v_usb4: regulator-v-usb4 {
142		/* USB hub port 4 */
143		compatible = "regulator-fixed";
144		enable-active-high;
145		gpio = <&gpio7 10 GPIO_ACTIVE_HIGH>;
146		pinctrl-names = "default";
147		pinctrl-0 = <&pinctrl_hummingboard2_usbh3_vbus>;
148		regulator-always-on;
149		regulator-max-microvolt = <5000000>;
150		regulator-min-microvolt = <5000000>;
151		regulator-name = "v_usb4";
152		vin-supply = <&v_5v0>;
153	};
154
155	audio: sound-sgtl5000 {
156		compatible = "simple-audio-card";
157		simple-audio-card,name = "On-board Codec";
158		simple-audio-card,format = "i2s";
159		simple-audio-card,bitclock-master = <&sound_codec>;
160		simple-audio-card,frame-master = <&sound_codec>;
161		simple-audio-card,widgets =
162			"Microphone", "Mic Jack",
163			"Headphone", "Headphone Jack";
164		simple-audio-card,routing =
165			"MIC_IN", "Mic Jack",
166			"Mic Jack", "Mic Bias",
167			"Headphone Jack", "HP_OUT";
168
169		sound_cpu: simple-audio-card,cpu {
170			sound-dai = <&ssi1>;
171		};
172
173		sound_codec: simple-audio-card,codec {
174			sound-dai = <&sgtl5000>;
175		};
176	};
177};
178
179&audmux {
180	status = "okay";
181
182	ssi1 {
183		fsl,audmux-port = <0>;
184		fsl,port-config = <
185			(IMX_AUDMUX_V2_PTCR_SYN |
186			 IMX_AUDMUX_V2_PTCR_TFSEL(4) |
187			 IMX_AUDMUX_V2_PTCR_TCSEL(4) |
188			 IMX_AUDMUX_V2_PTCR_TFSDIR |
189			 IMX_AUDMUX_V2_PTCR_TCLKDIR)
190			 IMX_AUDMUX_V2_PDCR_RXDSEL(4)
191		>;
192	};
193
194	pins5 {
195		fsl,audmux-port = <4>;
196		fsl,port-config = <
197			IMX_AUDMUX_V2_PTCR_SYN
198			IMX_AUDMUX_V2_PDCR_RXDSEL(0)
199		>;
200	};
201};
202
203&ecspi2 {
204	pinctrl-names = "default";
205	pinctrl-0 = <&pinctrl_hummingboard2_ecspi2>;
206	cs-gpios = <&gpio2 26 0>;
207	status = "okay";
208};
209
210&hdmi {
211	pinctrl-names = "default";
212	pinctrl-0 = <&pinctrl_hummingboard2_hdmi>;
213	ddc-i2c-bus = <&i2c2>;
214	status = "okay";
215};
216
217&i2c1 {
218	clock-frequency = <100000>;
219	pinctrl-names = "default";
220	pinctrl-0 = <&pinctrl_hummingboard2_i2c1>;
221	status = "okay";
222
223	pcf8523: rtc@68 {
224		compatible = "nxp,pcf8523";
225		reg = <0x68>;
226	};
227
228	sgtl5000: codec@a {
229		clocks = <&clks IMX6QDL_CLK_CKO>;
230		compatible = "fsl,sgtl5000";
231		#sound-dai-cells = <0>;
232		pinctrl-names = "default";
233		pinctrl-0 = <&pinctrl_hummingboard2_sgtl5000>;
234		reg = <0x0a>;
235		VDDA-supply = <&v_3v2>;
236		VDDD-supply = <&vcc_1p8>;
237		VDDIO-supply = <&v_3v2>;
238	};
239};
240
241&i2c2 {
242	clock-frequency = <100000>;
243	pinctrl-names = "default";
244	pinctrl-0 = <&pinctrl_hummingboard2_i2c2>;
245	status = "okay";
246};
247
248&i2c3 {
249	clock-frequency = <100000>;
250	pinctrl-names = "default";
251	pinctrl-0 = <&pinctrl_hummingboard2_i2c3>;
252	status = "okay";
253};
254
255&iomuxc {
256	pinctrl-names = "default";
257	pinctrl-0 = <&pinctrl_hog>;
258
259	hummingboard2 {
260		pinctrl_hog: hoggrp {
261		fsl,pins = <
262				/*
263				 * 36 pin headers GPIO description. The pins
264				 * numbering as following -
265				 *
266				 * 	3.2v	5v	74	75
267				 *	73	72	71	70
268				 *	69	68	67	66
269				 *
270				 *	77	78	79	76
271				 *	65	64	61	60
272				 *	53	52	51	50
273				 *	49	48	166	132
274				 *	95	94	90	91
275				 *	GND	54	24	204
276				 *
277				 * The GPIO numbers can be extracted using
278				 * signal name from below.
279				 * Example -
280				 * MX6QDL_PAD_EIM_DA10__GPIO3_IO10 is
281				 * GPIO(3,10) which is (3-1)*32+10 = gpio 74
282				 *
283				 * i.e. The mapping of GPIO(X,Y) to Linux gpio
284				 * number is : gpio number = (X-1) * 32 + Y
285				 */
286				/* DI1_PIN15 */
287				MX6QDL_PAD_EIM_DA10__GPIO3_IO10 0x400130b1
288				/* DI1_PIN02 */
289				MX6QDL_PAD_EIM_DA11__GPIO3_IO11 0x400130b1
290				/* DISP1_DATA00 */
291				MX6QDL_PAD_EIM_DA9__GPIO3_IO09 0x400130b1
292				/* DISP1_DATA01 */
293				MX6QDL_PAD_EIM_DA8__GPIO3_IO08 0x400130b1
294				/* DISP1_DATA02 */
295				MX6QDL_PAD_EIM_DA7__GPIO3_IO07 0x400130b1
296				/* DISP1_DATA03 */
297				MX6QDL_PAD_EIM_DA6__GPIO3_IO06 0x400130b1
298				/* DISP1_DATA04 */
299				MX6QDL_PAD_EIM_DA5__GPIO3_IO05 0x400130b1
300				/* DISP1_DATA05 */
301				MX6QDL_PAD_EIM_DA4__GPIO3_IO04 0x400130b1
302				/* DISP1_DATA06 */
303				MX6QDL_PAD_EIM_DA3__GPIO3_IO03 0x400130b1
304				/* DISP1_DATA07 */
305				MX6QDL_PAD_EIM_DA2__GPIO3_IO02 0x400130b1
306				/* DI1_D0_CS */
307				MX6QDL_PAD_EIM_DA13__GPIO3_IO13 0x400130b1
308				/* DI1_D1_CS */
309				MX6QDL_PAD_EIM_DA14__GPIO3_IO14 0x400130b1
310				/* DI1_PIN01 */
311				MX6QDL_PAD_EIM_DA15__GPIO3_IO15 0x400130b1
312				/* DI1_PIN03 */
313				MX6QDL_PAD_EIM_DA12__GPIO3_IO12 0x400130b1
314				/* DISP1_DATA08 */
315				MX6QDL_PAD_EIM_DA1__GPIO3_IO01 0x400130b1
316				/* DISP1_DATA09 */
317				MX6QDL_PAD_EIM_DA0__GPIO3_IO00 0x400130b1
318				/* DISP1_DATA10 */
319				MX6QDL_PAD_EIM_EB1__GPIO2_IO29 0x400130b1
320				/* DISP1_DATA11 */
321				MX6QDL_PAD_EIM_EB0__GPIO2_IO28 0x400130b1
322				/* DISP1_DATA12 */
323				MX6QDL_PAD_EIM_A17__GPIO2_IO21 0x400130b1
324				/* DISP1_DATA13 */
325				MX6QDL_PAD_EIM_A18__GPIO2_IO20 0x400130b1
326				/* DISP1_DATA14 */
327				MX6QDL_PAD_EIM_A19__GPIO2_IO19 0x400130b1
328				/* DISP1_DATA15 */
329				MX6QDL_PAD_EIM_A20__GPIO2_IO18 0x400130b1
330				/* DISP1_DATA16 */
331				MX6QDL_PAD_EIM_A21__GPIO2_IO17 0x400130b1
332				/* DISP1_DATA17 */
333				MX6QDL_PAD_EIM_A22__GPIO2_IO16 0x400130b1
334				/* DISP1_DATA18 */
335				MX6QDL_PAD_EIM_A23__GPIO6_IO06 0x400130b1
336				/* DISP1_DATA19 */
337				MX6QDL_PAD_EIM_A24__GPIO5_IO04 0x400130b1
338				/* DISP1_DATA20 */
339				MX6QDL_PAD_EIM_D31__GPIO3_IO31 0x400130b1
340				/* DISP1_DATA21 */
341				MX6QDL_PAD_EIM_D30__GPIO3_IO30 0x400130b1
342				/* DISP1_DATA22 */
343				MX6QDL_PAD_EIM_D26__GPIO3_IO26 0x400130b1
344				/* DISP1_DATA23 */
345				MX6QDL_PAD_EIM_D27__GPIO3_IO27 0x400130b1
346				/* DI1_DISP_CLK */
347				MX6QDL_PAD_EIM_A16__GPIO2_IO22 0x400130b1
348				/* SPDIF_IN */
349				MX6QDL_PAD_ENET_RX_ER__GPIO1_IO24 0x400130b1
350				/* SPDIF_OUT */
351				MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x400130b1
352
353				/* MikroBUS GPIO pin number 10 */
354				MX6QDL_PAD_EIM_LBA__GPIO2_IO27 0x400130b1
355			>;
356		};
357
358		pinctrl_hummingboard2_ecspi2: hummingboard2-ecspi2grp {
359			fsl,pins = <
360				MX6QDL_PAD_EIM_OE__ECSPI2_MISO	0x100b1
361				MX6QDL_PAD_EIM_CS1__ECSPI2_MOSI	0x100b1
362				MX6QDL_PAD_EIM_CS0__ECSPI2_SCLK	0x100b1
363				MX6QDL_PAD_EIM_RW__GPIO2_IO26	0x000b1 /* CS */
364			>;
365		};
366
367		pinctrl_hummingboard2_gpio7_9: hummingboard2-gpio7_9 {
368			fsl,pins = <
369				MX6QDL_PAD_SD4_CMD__GPIO7_IO09 0x80000000
370			>;
371		};
372
373		pinctrl_hummingboard2_hdmi: hummingboard2-hdmi {
374			fsl,pins = <
375				MX6QDL_PAD_KEY_ROW2__HDMI_TX_CEC_LINE 0x1f8b0
376			>;
377		};
378
379		pinctrl_hummingboard2_i2c1: hummingboard2-i2c1 {
380			fsl,pins = <
381				MX6QDL_PAD_EIM_D21__I2C1_SCL 0x4001b8b1
382				MX6QDL_PAD_EIM_D28__I2C1_SDA 0x4001b8b1
383			>;
384		};
385
386		pinctrl_hummingboard2_i2c2: hummingboard2-i2c2 {
387			fsl,pins = <
388				MX6QDL_PAD_KEY_COL3__I2C2_SCL 0x4001b8b1
389				MX6QDL_PAD_KEY_ROW3__I2C2_SDA 0x4001b8b1
390			>;
391		};
392
393		pinctrl_hummingboard2_i2c3: hummingboard2-i2c3 {
394			fsl,pins = <
395				MX6QDL_PAD_EIM_D17__I2C3_SCL 0x4001b8b1
396				MX6QDL_PAD_EIM_D18__I2C3_SDA 0x4001b8b1
397			>;
398		};
399
400		pinctrl_hummingboard2_mipi: hummingboard2_mipi {
401			fsl,pins = <
402				MX6QDL_PAD_SD4_DAT2__GPIO2_IO10 0x4001b8b1
403				MX6QDL_PAD_KEY_COL4__GPIO4_IO14 0x4001b8b1
404				MX6QDL_PAD_NANDF_CS2__CCM_CLKO2 0x130b0
405			>;
406		};
407
408		pinctrl_hummingboard2_pcie_reset: hummingboard2-pcie-reset {
409			fsl,pins = <
410				MX6QDL_PAD_SD4_DAT3__GPIO2_IO11 0x1b0b1
411			>;
412		};
413
414		pinctrl_hummingboard2_pwm1: pwm1grp {
415			fsl,pins = <
416				MX6QDL_PAD_DISP0_DAT8__PWM1_OUT 0x1b0b1
417			>;
418		};
419
420		pinctrl_hummingboard2_pwm3: pwm3grp {
421			fsl,pins = <
422				MX6QDL_PAD_SD4_DAT1__PWM3_OUT 0x1b0b1
423			>;
424		};
425
426		pinctrl_hummingboard2_sgtl5000: hummingboard2-sgtl5000 {
427			fsl,pins = <
428				MX6QDL_PAD_DISP0_DAT19__AUD5_RXD 0x130b0
429				MX6QDL_PAD_KEY_COL0__AUD5_TXC 0x130b0
430				MX6QDL_PAD_KEY_ROW0__AUD5_TXD 0x110b0
431				MX6QDL_PAD_KEY_COL1__AUD5_TXFS 0x130b0
432				MX6QDL_PAD_GPIO_5__CCM_CLKO1 0x130b0
433			>;
434		};
435
436		pinctrl_hummingboard2_usbh1_vbus: hummingboard2-usbh1-vbus {
437			fsl,pins = <MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x1b0b0>;
438		};
439
440		pinctrl_hummingboard2_usbh2_vbus: hummingboard2-usbh2-vbus {
441			fsl,pins = <MX6QDL_PAD_SD4_DAT5__GPIO2_IO13 0x1b0b0>;
442		};
443
444		pinctrl_hummingboard2_usbh3_vbus: hummingboard2-usbh3-vbus {
445			fsl,pins = <MX6QDL_PAD_SD4_CLK__GPIO7_IO10 0x1b0b0>;
446		};
447
448		pinctrl_hummingboard2_usbotg_id: hummingboard2-usbotg-id {
449			/*
450			 * We want it pulled down for a fixed host connection.
451			 */
452			fsl,pins = <MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x13059>;
453		};
454
455		pinctrl_hummingboard2_usbotg_vbus: hummingboard2-usbotg-vbus {
456			fsl,pins = <MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x1b0b0>;
457		};
458
459		pinctrl_hummingboard2_usdhc2_aux: hummingboard2-usdhc2-aux {
460			fsl,pins = <
461				MX6QDL_PAD_GPIO_4__GPIO1_IO04    0x1f071
462				MX6QDL_PAD_KEY_ROW1__SD2_VSELECT 0x1b071
463			>;
464		};
465
466		pinctrl_hummingboard2_usdhc2: hummingboard2-usdhc2 {
467			fsl,pins = <
468				MX6QDL_PAD_SD2_CMD__SD2_CMD    0x17059
469				MX6QDL_PAD_SD2_CLK__SD2_CLK    0x10059
470				MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x17059
471				MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x17059
472				MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x17059
473				MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x13059
474			>;
475		};
476
477		pinctrl_hummingboard2_usdhc2_100mhz: hummingboard2-usdhc2-100mhz {
478			fsl,pins = <
479				MX6QDL_PAD_SD2_CMD__SD2_CMD    0x170b9
480				MX6QDL_PAD_SD2_CLK__SD2_CLK    0x100b9
481				MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x170b9
482				MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x170b9
483				MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x170b9
484				MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x130b9
485			>;
486		};
487
488		pinctrl_hummingboard2_usdhc2_200mhz: hummingboard2-usdhc2-200mhz {
489			fsl,pins = <
490				MX6QDL_PAD_SD2_CMD__SD2_CMD    0x170f9
491				MX6QDL_PAD_SD2_CLK__SD2_CLK    0x100f9
492				MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x170f9
493				MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x170f9
494				MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x170f9
495				MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x130f9
496			>;
497		};
498
499		pinctrl_hummingboard2_vmmc: hummingboard2-vmmc {
500			fsl,pins = <
501				MX6QDL_PAD_DISP0_DAT9__GPIO4_IO30 0x1b0b0
502			>;
503		};
504
505		pinctrl_hummingboard2_uart3: hummingboard2-uart3 {
506			fsl,pins = <
507				MX6QDL_PAD_EIM_D25__UART3_TX_DATA	0x1b0b1
508				MX6QDL_PAD_EIM_D24__UART3_RX_DATA	0x40013000
509			>;
510		};
511	};
512};
513
514&pcie {
515	pinctrl-names = "default";
516	pinctrl-0 = <&pinctrl_hummingboard2_pcie_reset>;
517	reset-gpio = <&gpio2 11 GPIO_ACTIVE_LOW>;
518	status = "okay";
519};
520
521&pwm1 {
522	pinctrl-names = "default";
523	pinctrl-0 = <&pinctrl_hummingboard2_pwm1>;
524	status = "okay";
525};
526
527&pwm3 {
528	pinctrl-names = "default";
529	pinctrl-0 = <&pinctrl_hummingboard2_pwm3>;
530	status = "okay";
531};
532
533&ssi1 {
534	status = "okay";
535};
536
537&usbh1 {
538	disable-over-current;
539	status = "okay";
540};
541
542&usbotg {
543	disable-over-current;
544	pinctrl-names = "default";
545	pinctrl-0 = <&pinctrl_hummingboard2_usbotg_id>;
546	vbus-supply = <&v_usb1>;
547	status = "okay";
548};
549
550&usdhc2 {
551	pinctrl-names = "default", "state_100mhz", "state_200mhz";
552	pinctrl-0 = <
553		&pinctrl_hummingboard2_usdhc2_aux
554		&pinctrl_hummingboard2_usdhc2
555	>;
556	pinctrl-1 = <
557		&pinctrl_hummingboard2_usdhc2_aux
558		&pinctrl_hummingboard2_usdhc2_100mhz
559	>;
560	pinctrl-2 = <
561		&pinctrl_hummingboard2_usdhc2_aux
562		&pinctrl_hummingboard2_usdhc2_200mhz
563	>;
564	vmmc-supply = <&v_sd>;
565	cd-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
566	status = "okay";
567};
568
569&uart3 {
570	pinctrl-names = "default";
571	pinctrl-0 = <&pinctrl_hummingboard2_uart3>;
572	status = "okay";
573};
574
575&vcc_3v3 {
576	vin-supply = <&v_3v2>;
577};
578