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};