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		reg = <0 0x40000000>;
19	};
20
21	leds {
22		act {
23			gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
24		};
25	};
26
27	wifi_pwrseq: wifi-pwrseq {
28		compatible = "mmc-pwrseq-simple";
29		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
30	};
31};
32
33&firmware {
34	expgpio: gpio {
35		compatible = "raspberrypi,firmware-gpio";
36		gpio-controller;
37		#gpio-cells = <2>;
38		gpio-line-names = "BT_ON",
39				  "WL_ON",
40				  "STATUS_LED",
41				  "LAN_RUN",
42				  "HDMI_HPD_N",
43				  "CAM_GPIO0",
44				  "CAM_GPIO1",
45				  "PWR_LOW_N";
46		status = "okay";
47	};
48};
49
50&gpio {
51	/*
52	 * Taken from rpi_SCH_3b_1p2_reduced.pdf and
53	 * the official GPU firmware DT blob.
54	 *
55	 * Legend:
56	 * "NC" = not connected (no rail from the SoC)
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			  "ETHCLK",
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};
129
130/* uart0 communicates with the BT module */
131&uart0 {
132	pinctrl-names = "default";
133	pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
134	status = "okay";
135
136	bluetooth {
137		compatible = "brcm,bcm43438-bt";
138		max-speed = <2000000>;
139		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
140	};
141};
142
143/* uart1 is mapped to the pin header */
144&uart1 {
145	pinctrl-names = "default";
146	pinctrl-0 = <&uart1_gpio14>;
147	status = "okay";
148};
149
150/* SDHCI is used to control the SDIO for wireless */
151&sdhci {
152	#address-cells = <1>;
153	#size-cells = <0>;
154	pinctrl-names = "default";
155	pinctrl-0 = <&emmc_gpio34>;
156	status = "okay";
157	bus-width = <4>;
158	non-removable;
159	mmc-pwrseq = <&wifi_pwrseq>;
160
161	brcmf: wifi@1 {
162		reg = <1>;
163		compatible = "brcm,bcm4329-fmac";
164	};
165};
166
167/* SDHOST is used to drive the SD card */
168&sdhost {
169	pinctrl-names = "default";
170	pinctrl-0 = <&sdhost_gpio48>;
171	status = "okay";
172	bus-width = <4>;
173};
174