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 };
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