1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2837.dtsi"
4 #include "bcm2836-rpi.dtsi"
5 #include "bcm283x-rpi-lan7515.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-usb-host.dtsi"
8 #include "bcm283x-rpi-wifi-bt.dtsi"
9 
10 / {
11 	compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
12 	model = "Raspberry Pi 3 Model B+";
13 
14 	chosen {
15 		/* 8250 auxiliary UART instead of pl011 */
16 		stdout-path = "serial1:115200n8";
17 	};
18 
19 	memory@0 {
20 		device_type = "memory";
21 		reg = <0 0x40000000>;
22 	};
23 };
24 
25 &bt {
26 	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
27 };
28 
29 &firmware {
30 	expgpio: gpio {
31 		compatible = "raspberrypi,firmware-gpio";
32 		gpio-controller;
33 		#gpio-cells = <2>;
34 		gpio-line-names = "BT_ON",
35 				  "WL_ON",
36 				  "PWR_LED_R",
37 				  "LAN_RUN",
38 				  "",
39 				  "CAM_GPIO0",
40 				  "CAM_GPIO1",
41 				  "";
42 		status = "okay";
43 	};
44 };
45 
46 &gpio {
47 	/*
48 	 * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
49 	 * the official GPU firmware DT blob.
50 	 *
51 	 * Legend:
52 	 * "FOO" = GPIO line named "FOO" on the schematic
53 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
54 	 */
55 	gpio-line-names = "ID_SDA",
56 			  "ID_SCL",
57 			  "SDA1",
58 			  "SCL1",
59 			  "GPIO_GCLK",
60 			  "GPIO5",
61 			  "GPIO6",
62 			  "SPI_CE1_N",
63 			  "SPI_CE0_N",
64 			  "SPI_MISO",
65 			  "SPI_MOSI",
66 			  "SPI_SCLK",
67 			  "GPIO12",
68 			  "GPIO13",
69 			  /* Serial port */
70 			  "TXD1",
71 			  "RXD1",
72 			  "GPIO16",
73 			  "GPIO17",
74 			  "GPIO18",
75 			  "GPIO19",
76 			  "GPIO20",
77 			  "GPIO21",
78 			  "GPIO22",
79 			  "GPIO23",
80 			  "GPIO24",
81 			  "GPIO25",
82 			  "GPIO26",
83 			  "GPIO27",
84 			  "HDMI_HPD_N",
85 			  "STATUS_LED_G",
86 			  /* Used by BT module */
87 			  "CTS0",
88 			  "RTS0",
89 			  "TXD0",
90 			  "RXD0",
91 			  /* Used by Wifi */
92 			  "SD1_CLK",
93 			  "SD1_CMD",
94 			  "SD1_DATA0",
95 			  "SD1_DATA1",
96 			  "SD1_DATA2",
97 			  "SD1_DATA3",
98 			  "PWM0_OUT",
99 			  "PWM1_OUT",
100 			  "ETH_CLK",
101 			  "WIFI_CLK",
102 			  "SDA0",
103 			  "SCL0",
104 			  "SMPS_SCL",
105 			  "SMPS_SDA",
106 			  /* Used by SD Card */
107 			  "SD_CLK_R",
108 			  "SD_CMD_R",
109 			  "SD_DATA0_R",
110 			  "SD_DATA1_R",
111 			  "SD_DATA2_R",
112 			  "SD_DATA3_R";
113 };
114 
115 &hdmi {
116 	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
117 	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
118 	status = "okay";
119 };
120 
121 &led_act {
122 	gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
123 };
124 
125 &leds {
126 	led-pwr {
127 		label = "PWR";
128 		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
129 		default-state = "keep";
130 		linux,default-trigger = "default-on";
131 	};
132 };
133 
134 &pwm {
135 	pinctrl-names = "default";
136 	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
137 	status = "okay";
138 };
139 
140 /* SDHOST is used to drive the SD card */
141 &sdhost {
142 	pinctrl-names = "default";
143 	pinctrl-0 = <&sdhost_gpio48>;
144 	status = "okay";
145 	bus-width = <4>;
146 };
147 
148 /* uart0 communicates with the BT module */
149 &uart0 {
150 	pinctrl-names = "default";
151 	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
152 };
153 
154 /* uart1 is mapped to the pin header */
155 &uart1 {
156 	pinctrl-names = "default";
157 	pinctrl-0 = <&uart1_gpio14>;
158 	status = "okay";
159 };
160 
161 &wifi_pwrseq {
162 	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
163 };
164