1// SPDX-License-Identifier: GPL-2.0+
  2/*
  3 * Copyright (C) 2022 Stefan Wahren <stefan.wahren@i2se.com>
  4 */
  5
  6/dts-v1/;
  7#include "bcm2837.dtsi"
  8#include "bcm2836-rpi.dtsi"
  9#include "bcm283x-rpi-led-deprecated.dtsi"
 10#include "bcm283x-rpi-usb-otg.dtsi"
 11#include "bcm283x-rpi-wifi-bt.dtsi"
 12
 13/ {
 14	compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
 15	model = "Raspberry Pi Zero 2 W";
 16
 17	memory@0 {
 18		device_type = "memory";
 19		reg = <0 0x20000000>;
 20	};
 21
 22	chosen {
 23		/* 8250 auxiliary UART instead of pl011 */
 24		stdout-path = "serial1:115200n8";
 25	};
 26};
 27
 28&bt {
 29	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 30};
 31
 32&gpio {
 33	/*
 34	 * This is based on the official GPU firmware DT blob.
 35	 *
 36	 * Legend:
 37	 * "NC" = not connected (no rail from the SoC)
 38	 * "FOO" = GPIO line named "FOO" on the schematic
 39	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 40	 */
 41	gpio-line-names = "ID_SDA",
 42			  "ID_SCL",
 43			  "SDA1",
 44			  "SCL1",
 45			  "GPIO_GCLK",
 46			  "GPIO5",
 47			  "GPIO6",
 48			  "SPI_CE1_N",
 49			  "SPI_CE0_N",
 50			  "SPI_MISO",
 51			  "SPI_MOSI",
 52			  "SPI_SCLK",
 53			  "GPIO12",
 54			  "GPIO13",
 55			  /* Serial port */
 56			  "TXD0",
 57			  "RXD0",
 58			  "GPIO16",
 59			  "GPIO17",
 60			  "GPIO18",
 61			  "GPIO19",
 62			  "GPIO20",
 63			  "GPIO21",
 64			  "GPIO22",
 65			  "GPIO23",
 66			  "GPIO24",
 67			  "GPIO25",
 68			  "GPIO26",
 69			  "GPIO27",
 70			  "HDMI_HPD_N",
 71			  "STATUS_LED_N",
 72			  "NC", /* GPIO30 */
 73			  "NC", /* GPIO31 */
 74			  "NC", /* GPIO32 */
 75			  "NC", /* GPIO33 */
 76			  "NC", /* GPIO34 */
 77			  "NC", /* GPIO35 */
 78			  "NC", /* GPIO36 */
 79			  "NC", /* GPIO37 */
 80			  "NC", /* GPIO38 */
 81			  "NC", /* GPIO39 */
 82			  "CAM_GPIO0", /* GPIO40 */
 83			  "WL_ON", /* GPIO41 */
 84			  "BT_ON", /* GPIO42 */
 85			  "WIFI_CLK", /* GPIO43 */
 86			  "SDA0", /* GPIO44 */
 87			  "SCL0", /* GPIO45 */
 88			  "SMPS_SCL",
 89			  "SMPS_SDA",
 90			  /* Used by SD Card */
 91			  "SD_CLK_R",
 92			  "SD_CMD_R",
 93			  "SD_DATA0_R",
 94			  "SD_DATA1_R",
 95			  "SD_DATA2_R",
 96			  "SD_DATA3_R";
 97
 98	pinctrl-0 = <&gpioout &alt0>;
 99};
100
101&hdmi {
102	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
103	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
104	status = "okay";
105};
106
107&led_act {
108	gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
109};
110
111&sdhci {
112	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
113};
114
115&sdhost {
116	pinctrl-names = "default";
117	pinctrl-0 = <&sdhost_gpio48>;
118	bus-width = <4>;
119	status = "okay";
120};
121
122&uart0 {
123	pinctrl-names = "default";
124	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
125};
126
127&uart1 {
128	pinctrl-names = "default";
129	pinctrl-0 = <&uart1_gpio14>;
130	status = "okay";
131};
132
133&wifi_pwrseq {
134	reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
135};