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
8/ {
9	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
10	model = "Raspberry Pi 3 Model B";
11
12	chosen {
13		/* 8250 auxiliary UART instead of pl011 */
14		stdout-path = "serial1:115200n8";
15	};
16
17	memory@0 {
18		device_type = "memory";
19		reg = <0 0x40000000>;
20	};
21
22	leds {
23		act {
24			gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
25		};
26	};
27
28	wifi_pwrseq: wifi-pwrseq {
29		compatible = "mmc-pwrseq-simple";
30		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
31	};
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	 * "NC" = not connected (no rail from the SoC)
58	 * "FOO" = GPIO line named "FOO" on the schematic
59	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
60	 */
61	gpio-line-names = "ID_SDA",
62			  "ID_SCL",
63			  "SDA1",
64			  "SCL1",
65			  "GPIO_GCLK",
66			  "GPIO5",
67			  "GPIO6",
68			  "SPI_CE1_N",
69			  "SPI_CE0_N",
70			  "SPI_MISO",
71			  "SPI_MOSI",
72			  "SPI_SCLK",
73			  "GPIO12",
74			  "GPIO13",
75			  /* Serial port */
76			  "TXD1",
77			  "RXD1",
78			  "GPIO16",
79			  "GPIO17",
80			  "GPIO18",
81			  "GPIO19",
82			  "GPIO20",
83			  "GPIO21",
84			  "GPIO22",
85			  "GPIO23",
86			  "GPIO24",
87			  "GPIO25",
88			  "GPIO26",
89			  "GPIO27",
90			  "", /* GPIO 28 */
91			  "LAN_RUN_BOOT",
92			  /* Used by BT module */
93			  "CTS0",
94			  "RTS0",
95			  "TXD0",
96			  "RXD0",
97			  /* Used by Wifi */
98			  "SD1_CLK",
99			  "SD1_CMD",
100			  "SD1_DATA0",
101			  "SD1_DATA1",
102			  "SD1_DATA2",
103			  "SD1_DATA3",
104			  "PWM0_OUT",
105			  "PWM1_OUT",
106			  "ETHCLK",
107			  "WIFI_CLK",
108			  "SDA0",
109			  "SCL0",
110			  "SMPS_SCL",
111			  "SMPS_SDA",
112			  /* Used by SD Card */
113			  "SD_CLK_R",
114			  "SD_CMD_R",
115			  "SD_DATA0_R",
116			  "SD_DATA1_R",
117			  "SD_DATA2_R",
118			  "SD_DATA3_R";
119};
120
121&pwm {
122	pinctrl-names = "default";
123	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
124	status = "okay";
125};
126
127&hdmi {
128	hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
129	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
130	status = "okay";
131};
132
133/* uart0 communicates with the BT module */
134&uart0 {
135	pinctrl-names = "default";
136	pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
137	status = "okay";
138
139	bluetooth {
140		compatible = "brcm,bcm43438-bt";
141		max-speed = <2000000>;
142		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
143	};
144};
145
146/* uart1 is mapped to the pin header */
147&uart1 {
148	pinctrl-names = "default";
149	pinctrl-0 = <&uart1_gpio14>;
150	status = "okay";
151};
152
153/* SDHCI is used to control the SDIO for wireless */
154&sdhci {
155	#address-cells = <1>;
156	#size-cells = <0>;
157	pinctrl-names = "default";
158	pinctrl-0 = <&emmc_gpio34>;
159	status = "okay";
160	bus-width = <4>;
161	non-removable;
162	mmc-pwrseq = <&wifi_pwrseq>;
163
164	brcmf: wifi@1 {
165		reg = <1>;
166		compatible = "brcm,bcm4329-fmac";
167	};
168};
169
170/* SDHOST is used to drive the SD card */
171&sdhost {
172	pinctrl-names = "default";
173	pinctrl-0 = <&sdhost_gpio48>;
174	status = "okay";
175	bus-width = <4>;
176};
177