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-usb-otg.dtsi"
10#include "bcm283x-rpi-wifi-bt.dtsi"
11
12/ {
13	compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
14	model = "Raspberry Pi Zero 2 W";
15
16	memory@0 {
17		device_type = "memory";
18		reg = <0 0x20000000>;
19	};
20
21	chosen {
22		/* 8250 auxiliary UART instead of pl011 */
23		stdout-path = "serial1:115200n8";
24	};
25
26	leds {
27		led-act {
28			gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
29		};
30	};
31};
32
33&bt {
34	shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
35};
36
37&gpio {
38	/*
39	 * This is based on the official GPU firmware DT blob.
40	 *
41	 * Legend:
42	 * "NC" = not connected (no rail from the SoC)
43	 * "FOO" = GPIO line named "FOO" on the schematic
44	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
45	 */
46	gpio-line-names = "ID_SDA",
47			  "ID_SCL",
48			  "SDA1",
49			  "SCL1",
50			  "GPIO_GCLK",
51			  "GPIO5",
52			  "GPIO6",
53			  "SPI_CE1_N",
54			  "SPI_CE0_N",
55			  "SPI_MISO",
56			  "SPI_MOSI",
57			  "SPI_SCLK",
58			  "GPIO12",
59			  "GPIO13",
60			  /* Serial port */
61			  "TXD0",
62			  "RXD0",
63			  "GPIO16",
64			  "GPIO17",
65			  "GPIO18",
66			  "GPIO19",
67			  "GPIO20",
68			  "GPIO21",
69			  "GPIO22",
70			  "GPIO23",
71			  "GPIO24",
72			  "GPIO25",
73			  "GPIO26",
74			  "GPIO27",
75			  "HDMI_HPD_N",
76			  "STATUS_LED_N",
77			  "NC", /* GPIO30 */
78			  "NC", /* GPIO31 */
79			  "NC", /* GPIO32 */
80			  "NC", /* GPIO33 */
81			  "NC", /* GPIO34 */
82			  "NC", /* GPIO35 */
83			  "NC", /* GPIO36 */
84			  "NC", /* GPIO37 */
85			  "NC", /* GPIO38 */
86			  "NC", /* GPIO39 */
87			  "CAM_GPIO0", /* GPIO40 */
88			  "WL_ON", /* GPIO41 */
89			  "BT_ON", /* GPIO42 */
90			  "WIFI_CLK", /* GPIO43 */
91			  "SDA0", /* GPIO44 */
92			  "SCL0", /* GPIO45 */
93			  "SMPS_SCL",
94			  "SMPS_SDA",
95			  /* Used by SD Card */
96			  "SD_CLK_R",
97			  "SD_CMD_R",
98			  "SD_DATA0_R",
99			  "SD_DATA1_R",
100			  "SD_DATA2_R",
101			  "SD_DATA3_R";
102
103	pinctrl-0 = <&gpioout &alt0>;
104};
105
106&hdmi {
107	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
108	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
109	status = "okay";
110};
111
112&sdhci {
113	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
114};
115
116&sdhost {
117	pinctrl-names = "default";
118	pinctrl-0 = <&sdhost_gpio48>;
119	bus-width = <4>;
120	status = "okay";
121};
122
123&uart0 {
124	pinctrl-names = "default";
125	pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
126};
127
128&uart1 {
129	pinctrl-names = "default";
130	pinctrl-0 = <&uart1_gpio14>;
131	status = "okay";
132};
133
134&wifi_pwrseq {
135	reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
136};
137