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1/*
2 * Copyright (C) 2016 Stefan Wahren <stefan.wahren@i2se.com>
3 *
4 * The code contained herein is licensed under the GNU General Public
5 * License. You may obtain a copy of the GNU General Public License
6 * Version 2 or later at the following locations:
7 *
8 * http://www.opensource.org/licenses/gpl-license.html
9 * http://www.gnu.org/copyleft/gpl.html
10 */
11
12/dts-v1/;
13#include "bcm2835.dtsi"
14#include "bcm2835-rpi.dtsi"
15#include "bcm283x-rpi-usb-otg.dtsi"
16
17/ {
18	compatible = "raspberrypi,model-zero", "brcm,bcm2835";
19	model = "Raspberry Pi Zero";
20
21	leds {
22		act {
23			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
24		};
25	};
26};
27
28&gpio {
29	/*
30	 * This is based on the official GPU firmware DT blob.
31	 *
32	 * Legend:
33	 * "NC" = not connected (no rail from the SoC)
34	 * "FOO" = GPIO line named "FOO" on the schematic
35	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
36	 */
37	gpio-line-names = "SDA0",
38			  "SCL0",
39			  "SDA1",
40			  "SCL1",
41			  "GPIO_GCLK",
42			  "GPIO5",
43			  "GPIO6",
44			  "SPI_CE1_N",
45			  "SPI_CE0_N",
46			  "SPI_MISO",
47			  "SPI_MOSI",
48			  "SPI_SCLK",
49			  "GPIO12",
50			  "GPIO13",
51			  /* Serial port */
52			  "TXD0",
53			  "RXD0",
54			  "GPIO16",
55			  "GPIO17",
56			  "GPIO18",
57			  "GPIO19",
58			  "GPIO20",
59			  "GPIO21",
60			  "GPIO22",
61			  "GPIO23",
62			  "GPIO24",
63			  "GPIO25",
64			  "GPIO26",
65			  "GPIO27",
66			  "SDA0",
67			  "SCL0",
68			  "NC", /* GPIO30 */
69			  "NC", /* GPIO31 */
70			  "CAM_GPIO1", /* GPIO32 */
71			  "NC", /* GPIO33 */
72			  "NC", /* GPIO34 */
73			  "NC", /* GPIO35 */
74			  "NC", /* GPIO36 */
75			  "NC", /* GPIO37 */
76			  "NC", /* GPIO38 */
77			  "NC", /* GPIO39 */
78			  "NC", /* GPIO40 */
79			  "CAM_GPIO0", /* GPIO41 */
80			  "NC", /* GPIO42 */
81			  "NC", /* GPIO43 */
82			  "NC", /* GPIO44 */
83			  "NC", /* GPIO45 */
84			  "HDMI_HPD_N",
85			  "STATUS_LED_N",
86			  /* Used by SD Card */
87			  "SD_CLK_R",
88			  "SD_CMD_R",
89			  "SD_DATA0_R",
90			  "SD_DATA1_R",
91			  "SD_DATA2_R",
92			  "SD_DATA3_R";
93
94	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
95
96	/* I2S interface */
97	i2s_alt0: i2s_alt0 {
98		brcm,pins = <18 19 20 21>;
99		brcm,function = <BCM2835_FSEL_ALT0>;
100	};
101};
102
103&hdmi {
104	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
105};
106
107&uart0 {
108	pinctrl-names = "default";
109	pinctrl-0 = <&uart0_gpio14>;
110	status = "okay";
111};
112