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 "bcm2835-rpi-common.dtsi"
 10#include "bcm283x-rpi-led-deprecated.dtsi"
 11#include "bcm283x-rpi-usb-otg.dtsi"
 12
 13/ {
 14	compatible = "raspberrypi,model-zero", "brcm,bcm2835";
 15	model = "Raspberry Pi Zero";
 16
 17	memory@0 {
 18		device_type = "memory";
 19		reg = <0 0x20000000>;
 20	};
 21};
 22
 23&gpio {
 24	/*
 25	 * This is based on the official GPU firmware DT blob.
 26	 *
 27	 * Legend:
 28	 * "FOO" = GPIO line named "FOO" on the schematic
 29	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 30	 */
 31	gpio-line-names = "ID_SDA",
 32			  "ID_SCL",
 33			  "SDA1",
 34			  "SCL1",
 35			  "GPIO_GCLK",
 36			  "GPIO5",
 37			  "GPIO6",
 38			  "SPI_CE1_N",
 39			  "SPI_CE0_N",
 40			  "SPI_MISO",
 41			  "SPI_MOSI",
 42			  "SPI_SCLK",
 43			  "GPIO12",
 44			  "GPIO13",
 45			  /* Serial port */
 46			  "TXD0",
 47			  "RXD0",
 48			  "GPIO16",
 49			  "GPIO17",
 50			  "GPIO18",
 51			  "GPIO19",
 52			  "GPIO20",
 53			  "GPIO21",
 54			  "GPIO22",
 55			  "GPIO23",
 56			  "GPIO24",
 57			  "GPIO25",
 58			  "GPIO26",
 59			  "GPIO27",
 60			  "SDA0",
 61			  "SCL0",
 62			  "", /* GPIO30 */
 63			  "", /* GPIO31 */
 64			  "CAM_GPIO1", /* GPIO32 */
 65			  "", /* GPIO33 */
 66			  "", /* GPIO34 */
 67			  "", /* GPIO35 */
 68			  "", /* GPIO36 */
 69			  "", /* GPIO37 */
 70			  "", /* GPIO38 */
 71			  "", /* GPIO39 */
 72			  "", /* GPIO40 */
 73			  "CAM_GPIO0", /* GPIO41 */
 74			  "", /* GPIO42 */
 75			  "", /* GPIO43 */
 76			  "", /* GPIO44 */
 77			  "", /* GPIO45 */
 78			  "HDMI_HPD_N",
 79			  "STATUS_LED_N",
 80			  /* Used by SD Card */
 81			  "SD_CLK_R",
 82			  "SD_CMD_R",
 83			  "SD_DATA0_R",
 84			  "SD_DATA1_R",
 85			  "SD_DATA2_R",
 86			  "SD_DATA3_R";
 87
 88	pinctrl-names = "default";
 89	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 90
 91	/* I2S interface */
 92	i2s_alt0: i2s_alt0 {
 93		brcm,pins = <18 19 20 21>;
 94		brcm,function = <BCM2835_FSEL_ALT0>;
 95	};
 96};
 97
 98&hdmi {
 99	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
100	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
101	status = "okay";
102};
103
104&led_act {
105	gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
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};