1// SPDX-License-Identifier: GPL-2.0
2/dts-v1/;
3#include "bcm2837.dtsi"
4#include "bcm2836-rpi.dtsi"
5#include "bcm283x-rpi-smsc9514.dtsi"
6#include "bcm283x-rpi-usb-host.dtsi"
7#include "bcm283x-rpi-wifi-bt.dtsi"
8
9/ {
10	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
11	model = "Raspberry Pi 3 Model B";
12
13	chosen {
14		/* 8250 auxiliary UART instead of pl011 */
15		stdout-path = "serial1:115200n8";
16	};
17
18	memory@0 {
19		device_type = "memory";
20		reg = <0 0x40000000>;
21	};
22
23	leds {
24		led-act {
25			gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
26		};
27	};
28};
29
30&bt {
31	shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
32};
33
34&firmware {
35	expgpio: gpio {
36		compatible = "raspberrypi,firmware-gpio";
37		gpio-controller;
38		#gpio-cells = <2>;
39		gpio-line-names = "BT_ON",
40				  "WL_ON",
41				  "STATUS_LED",
42				  "LAN_RUN",
43				  "HDMI_HPD_N",
44				  "CAM_GPIO0",
45				  "CAM_GPIO1",
46				  "PWR_LOW_N";
47		status = "okay";
48	};
49};
50
51&gpio {
52	/*
53	 * Taken from rpi_SCH_3b_1p2_reduced.pdf and
54	 * the official GPU firmware DT blob.
55	 *
56	 * Legend:
57	 * "FOO" = GPIO line named "FOO" on the schematic
58	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
59	 */
60	gpio-line-names = "ID_SDA",
61			  "ID_SCL",
62			  "SDA1",
63			  "SCL1",
64			  "GPIO_GCLK",
65			  "GPIO5",
66			  "GPIO6",
67			  "SPI_CE1_N",
68			  "SPI_CE0_N",
69			  "SPI_MISO",
70			  "SPI_MOSI",
71			  "SPI_SCLK",
72			  "GPIO12",
73			  "GPIO13",
74			  /* Serial port */
75			  "TXD1",
76			  "RXD1",
77			  "GPIO16",
78			  "GPIO17",
79			  "GPIO18",
80			  "GPIO19",
81			  "GPIO20",
82			  "GPIO21",
83			  "GPIO22",
84			  "GPIO23",
85			  "GPIO24",
86			  "GPIO25",
87			  "GPIO26",
88			  "GPIO27",
89			  "", /* GPIO 28 */
90			  "LAN_RUN_BOOT",
91			  /* Used by BT module */
92			  "CTS0",
93			  "RTS0",
94			  "TXD0",
95			  "RXD0",
96			  /* Used by Wifi */
97			  "SD1_CLK",
98			  "SD1_CMD",
99			  "SD1_DATA0",
100			  "SD1_DATA1",
101			  "SD1_DATA2",
102			  "SD1_DATA3",
103			  "PWM0_OUT",
104			  "PWM1_OUT",
105			  "ETH_CLK",
106			  "WIFI_CLK",
107			  "SDA0",
108			  "SCL0",
109			  "SMPS_SCL",
110			  "SMPS_SDA",
111			  /* Used by SD Card */
112			  "SD_CLK_R",
113			  "SD_CMD_R",
114			  "SD_DATA0_R",
115			  "SD_DATA1_R",
116			  "SD_DATA2_R",
117			  "SD_DATA3_R";
118};
119
120&pwm {
121	pinctrl-names = "default";
122	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
123	status = "okay";
124};
125
126&hdmi {
127	hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
128	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
129	status = "okay";
130};
131
132/* uart0 communicates with the BT module */
133&uart0 {
134	pinctrl-names = "default";
135	pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
136};
137
138/* uart1 is mapped to the pin header */
139&uart1 {
140	pinctrl-names = "default";
141	pinctrl-0 = <&uart1_gpio14>;
142	status = "okay";
143};
144
145/* SDHOST is used to drive the SD card */
146&sdhost {
147	pinctrl-names = "default";
148	pinctrl-0 = <&sdhost_gpio48>;
149	status = "okay";
150	bus-width = <4>;
151};
152
153&wifi_pwrseq {
154	reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
155};
156