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-usb-host.dtsi"
7
8/ {
9	compatible = "raspberrypi,3-model-b-plus", "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		reg = <0 0x40000000>;
19	};
20
21	leds {
22		act {
23			gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
24		};
25
26		pwr {
27			label = "PWR";
28			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
29		};
30	};
31
32	wifi_pwrseq: wifi-pwrseq {
33		compatible = "mmc-pwrseq-simple";
34		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
35	};
36};
37
38&firmware {
39	expgpio: gpio {
40		compatible = "raspberrypi,firmware-gpio";
41		gpio-controller;
42		#gpio-cells = <2>;
43		gpio-line-names = "BT_ON",
44				  "WL_ON",
45				  "STATUS_LED_R",
46				  "LAN_RUN",
47				  "",
48				  "CAM_GPIO0",
49				  "CAM_GPIO1",
50				  "";
51		status = "okay";
52	};
53};
54
55&gpio {
56	/*
57	 * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
58	 * the official GPU firmware DT blob.
59	 *
60	 * Legend:
61	 * "NC" = not connected (no rail from the SoC)
62	 * "FOO" = GPIO line named "FOO" on the schematic
63	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
64	 */
65	gpio-line-names = "ID_SDA",
66			  "ID_SCL",
67			  "SDA1",
68			  "SCL1",
69			  "GPIO_GCLK",
70			  "GPIO5",
71			  "GPIO6",
72			  "SPI_CE1_N",
73			  "SPI_CE0_N",
74			  "SPI_MISO",
75			  "SPI_MOSI",
76			  "SPI_SCLK",
77			  "GPIO12",
78			  "GPIO13",
79			  /* Serial port */
80			  "TXD1",
81			  "RXD1",
82			  "GPIO16",
83			  "GPIO17",
84			  "GPIO18",
85			  "GPIO19",
86			  "GPIO20",
87			  "GPIO21",
88			  "GPIO22",
89			  "GPIO23",
90			  "GPIO24",
91			  "GPIO25",
92			  "GPIO26",
93			  "GPIO27",
94			  "HDMI_HPD_N",
95			  "STATUS_LED_G",
96			  /* Used by BT module */
97			  "CTS0",
98			  "RTS0",
99			  "TXD0",
100			  "RXD0",
101			  /* Used by Wifi */
102			  "SD1_CLK",
103			  "SD1_CMD",
104			  "SD1_DATA0",
105			  "SD1_DATA1",
106			  "SD1_DATA2",
107			  "SD1_DATA3",
108			  "PWM0_OUT",
109			  "PWM1_OUT",
110			  "ETHCLK",
111			  "WIFI_CLK",
112			  "SDA0",
113			  "SCL0",
114			  "SMPS_SCL",
115			  "SMPS_SDA",
116			  /* Used by SD Card */
117			  "SD_CLK_R",
118			  "SD_CMD_R",
119			  "SD_DATA0_R",
120			  "SD_DATA1_R",
121			  "SD_DATA2_R",
122			  "SD_DATA3_R";
123};
124
125&hdmi {
126	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
127};
128
129&pwm {
130	pinctrl-names = "default";
131	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
132	status = "okay";
133};
134
135/* SDHCI is used to control the SDIO for wireless */
136&sdhci {
137	#address-cells = <1>;
138	#size-cells = <0>;
139	pinctrl-names = "default";
140	pinctrl-0 = <&emmc_gpio34>;
141	status = "okay";
142	bus-width = <4>;
143	non-removable;
144	mmc-pwrseq = <&wifi_pwrseq>;
145
146	brcmf: wifi@1 {
147		reg = <1>;
148		compatible = "brcm,bcm4329-fmac";
149	};
150};
151
152/* SDHOST is used to drive the SD card */
153&sdhost {
154	pinctrl-names = "default";
155	pinctrl-0 = <&sdhost_gpio48>;
156	status = "okay";
157	bus-width = <4>;
158};
159
160/* uart0 communicates with the BT module */
161&uart0 {
162	pinctrl-names = "default";
163	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
164	status = "okay";
165
166	bluetooth {
167		compatible = "brcm,bcm43438-bt";
168		max-speed = <2000000>;
169		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
170	};
171};
172
173/* uart1 is mapped to the pin header */
174&uart1 {
175	pinctrl-names = "default";
176	pinctrl-0 = <&uart1_gpio14>;
177	status = "okay";
178};
179