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 "bcm283x-rpi-usb-otg.dtsi"
10 #include "bcm283x-rpi-wifi-bt.dtsi"
11
12 / {
13 compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
14 model = "Raspberry Pi Zero 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 47 GPIO_ACTIVE_LOW>;
29 };
30 };
31 };
32
33 &bt {
34 shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
35 };
36
37 &gpio {
38 /*
39 * This is based on the official GPU firmware DT blob.
40 *
41 * Legend:
42 * "FOO" = GPIO line named "FOO" on the schematic
43 * "FOO_N" = GPIO line named "FOO" on schematic, active low
44 */
45 gpio-line-names = "ID_SDA",
46 "ID_SCL",
47 "SDA1",
48 "SCL1",
49 "GPIO_GCLK",
50 "GPIO5",
51 "GPIO6",
52 "SPI_CE1_N",
53 "SPI_CE0_N",
54 "SPI_MISO",
55 "SPI_MOSI",
56 "SPI_SCLK",
57 "GPIO12",
58 "GPIO13",
59 /* Serial port */
60 "TXD0",
61 "RXD0",
62 "GPIO16",
63 "GPIO17",
64 "GPIO18",
65 "GPIO19",
66 "GPIO20",
67 "GPIO21",
68 "GPIO22",
69 "GPIO23",
70 "GPIO24",
71 "GPIO25",
72 "GPIO26",
73 "GPIO27",
74 "SDA0",
75 "SCL0",
76 /* Used by BT module */
77 "CTS0",
78 "RTS0",
79 "TXD0",
80 "RXD0",
81 /* Used by Wifi */
82 "SD1_CLK",
83 "SD1_CMD",
84 "SD1_DATA0",
85 "SD1_DATA1",
86 "SD1_DATA2",
87 "SD1_DATA3",
88 "CAM_GPIO1", /* GPIO40 */
89 "WL_ON", /* GPIO41 */
90 "", /* GPIO42 */
91 "WIFI_CLK", /* GPIO43 */
92 "CAM_GPIO0", /* GPIO44 */
93 "BT_ON", /* GPIO45 */
94 "HDMI_HPD_N",
95 "STATUS_LED_N",
96 /* Used by SD Card */
97 "SD_CLK_R",
98 "SD_CMD_R",
99 "SD_DATA0_R",
100 "SD_DATA1_R",
101 "SD_DATA2_R",
102 "SD_DATA3_R";
103
104 pinctrl-0 = <&gpioout &alt0>;
105 };
106
107 &hdmi {
108 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
109 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
110 status = "okay";
111 };
112
113 &sdhci {
114 pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
115 };
116
117 &sdhost {
118 pinctrl-names = "default";
119 pinctrl-0 = <&sdhost_gpio48>;
120 bus-width = <4>;
121 status = "okay";
122 };
123
124 &uart0 {
125 pinctrl-names = "default";
126 pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
127 };
128
129 &uart1 {
130 pinctrl-names = "default";
131 pinctrl-0 = <&uart1_gpio14>;
132 status = "okay";
133 };
134
135 &wifi_pwrseq {
136 reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
137 };
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