xref: /linux/arch/arm/boot/dts/broadcom/bcm2835-rpi-zero-w.dts (revision 4b132aacb0768ac1e652cf517097ea6f237214b9) 
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2017 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#include "bcm283x-rpi-wifi-bt.dtsi"
13
14/ {
15	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
16	model = "Raspberry Pi Zero W";
17
18	memory@0 {
19		device_type = "memory";
20		reg = <0 0x20000000>;
21	};
22
23	chosen {
24		/* 8250 auxiliary UART instead of pl011 */
25		stdout-path = "serial1:115200n8";
26	};
27};
28
29&bt {
30	shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
31};
32
33&gpio {
34	/*
35	 * This is based on the official GPU firmware DT blob.
36	 *
37	 * Legend:
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			  "SDA0",
71			  "SCL0",
72			  /* Used by BT module */
73			  "CTS0",
74			  "RTS0",
75			  "TXD0",
76			  "RXD0",
77			  /* Used by Wifi */
78			  "SD1_CLK",
79			  "SD1_CMD",
80			  "SD1_DATA0",
81			  "SD1_DATA1",
82			  "SD1_DATA2",
83			  "SD1_DATA3",
84			  "CAM_GPIO1", /* GPIO40 */
85			  "WL_ON", /* GPIO41 */
86			  "", /* GPIO42 */
87			  "WIFI_CLK", /* GPIO43 */
88			  "CAM_GPIO0", /* GPIO44 */
89			  "BT_ON", /* GPIO45 */
90			  "HDMI_HPD_N",
91			  "STATUS_LED_N",
92			  /* Used by SD Card */
93			  "SD_CLK_R",
94			  "SD_CMD_R",
95			  "SD_DATA0_R",
96			  "SD_DATA1_R",
97			  "SD_DATA2_R",
98			  "SD_DATA3_R";
99
100	pinctrl-names = "default";
101	pinctrl-0 = <&gpioout &alt0>;
102};
103
104&hdmi {
105	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
106	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
107	status = "okay";
108};
109
110&led_act {
111	gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
112};
113
114&sdhci {
115	pinctrl-names = "default";
116	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
117};
118
119&sdhost {
120	pinctrl-names = "default";
121	pinctrl-0 = <&sdhost_gpio48>;
122	bus-width = <4>;
123	status = "okay";
124};
125
126&uart0 {
127	pinctrl-names = "default";
128	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
129};
130
131&uart1 {
132	pinctrl-names = "default";
133	pinctrl-0 = <&uart1_gpio14>;
134	status = "okay";
135};
136
137&wifi_pwrseq {
138	reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
139};
140