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};