1// SPDX-License-Identifier: GPL-2.0+
  2/*
  3 * Copyright (C) 2016 Stefan Wahren <stefan.wahren@i2se.com>
  4 */
  5
  6/dts-v1/;
  7#include "bcm2835.dtsi"
  8#include "bcm2835-rpi.dtsi"
  9#include "bcm283x-rpi-usb-otg.dtsi"
 10
 11/ {
 12	compatible = "raspberrypi,model-zero", "brcm,bcm2835";
 13	model = "Raspberry Pi Zero";
 14
 15	memory@0 {
 16		device_type = "memory";
 17		reg = <0 0x20000000>;
 18	};
 19
 20	leds {
 21		act {
 22			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
 23		};
 24	};
 25};
 26
 27&gpio {
 28	/*
 29	 * This is based on the official GPU firmware DT blob.
 30	 *
 31	 * Legend:
 32	 * "NC" = not connected (no rail from the SoC)
 33	 * "FOO" = GPIO line named "FOO" on the schematic
 34	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 35	 */
 36	gpio-line-names = "ID_SDA",
 37			  "ID_SCL",
 38			  "SDA1",
 39			  "SCL1",
 40			  "GPIO_GCLK",
 41			  "GPIO5",
 42			  "GPIO6",
 43			  "SPI_CE1_N",
 44			  "SPI_CE0_N",
 45			  "SPI_MISO",
 46			  "SPI_MOSI",
 47			  "SPI_SCLK",
 48			  "GPIO12",
 49			  "GPIO13",
 50			  /* Serial port */
 51			  "TXD0",
 52			  "RXD0",
 53			  "GPIO16",
 54			  "GPIO17",
 55			  "GPIO18",
 56			  "GPIO19",
 57			  "GPIO20",
 58			  "GPIO21",
 59			  "GPIO22",
 60			  "GPIO23",
 61			  "GPIO24",
 62			  "GPIO25",
 63			  "GPIO26",
 64			  "GPIO27",
 65			  "SDA0",
 66			  "SCL0",
 67			  "NC", /* GPIO30 */
 68			  "NC", /* GPIO31 */
 69			  "CAM_GPIO1", /* GPIO32 */
 70			  "NC", /* GPIO33 */
 71			  "NC", /* GPIO34 */
 72			  "NC", /* GPIO35 */
 73			  "NC", /* GPIO36 */
 74			  "NC", /* GPIO37 */
 75			  "NC", /* GPIO38 */
 76			  "NC", /* GPIO39 */
 77			  "NC", /* GPIO40 */
 78			  "CAM_GPIO0", /* GPIO41 */
 79			  "NC", /* GPIO42 */
 80			  "NC", /* GPIO43 */
 81			  "NC", /* GPIO44 */
 82			  "NC", /* GPIO45 */
 83			  "HDMI_HPD_N",
 84			  "STATUS_LED_N",
 85			  /* Used by SD Card */
 86			  "SD_CLK_R",
 87			  "SD_CMD_R",
 88			  "SD_DATA0_R",
 89			  "SD_DATA1_R",
 90			  "SD_DATA2_R",
 91			  "SD_DATA3_R";
 92
 93	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 94
 95	/* I2S interface */
 96	i2s_alt0: i2s_alt0 {
 97		brcm,pins = <18 19 20 21>;
 98		brcm,function = <BCM2835_FSEL_ALT0>;
 99	};
100};
101
102&hdmi {
103	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
104	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
105	status = "okay";
106};
107
108&sdhost {
109	pinctrl-names = "default";
110	pinctrl-0 = <&sdhost_gpio48>;
111	bus-width = <4>;
112	status = "okay";
113};
114
115&uart0 {
116	pinctrl-names = "default";
117	pinctrl-0 = <&uart0_gpio14>;
118	status = "okay";
119};