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		device_type = "memory";
 19		reg = <0 0x40000000>;
 20	};
 21
 22	leds {
 23		led-act {
 24			gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
 25		};
 26
 27		led-pwr {
 28			label = "PWR";
 29			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
 30			default-state = "keep";
 31			linux,default-trigger = "default-on";
 32		};
 33	};
 34
 35	wifi_pwrseq: wifi-pwrseq {
 36		compatible = "mmc-pwrseq-simple";
 37		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
 38	};
 39};
 40
 41&firmware {
 42	expgpio: gpio {
 43		compatible = "raspberrypi,firmware-gpio";
 44		gpio-controller;
 45		#gpio-cells = <2>;
 46		gpio-line-names = "BT_ON",
 47				  "WL_ON",
 48				  "STATUS_LED_R",
 49				  "LAN_RUN",
 50				  "",
 51				  "CAM_GPIO0",
 52				  "CAM_GPIO1",
 53				  "";
 54		status = "okay";
 55	};
 56};
 57
 58&gpio {
 59	/*
 60	 * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and
 61	 * the official GPU firmware DT blob.
 62	 *
 63	 * Legend:
 64	 * "NC" = not connected (no rail from the SoC)
 65	 * "FOO" = GPIO line named "FOO" on the schematic
 66	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 67	 */
 68	gpio-line-names = "ID_SDA",
 69			  "ID_SCL",
 70			  "SDA1",
 71			  "SCL1",
 72			  "GPIO_GCLK",
 73			  "GPIO5",
 74			  "GPIO6",
 75			  "SPI_CE1_N",
 76			  "SPI_CE0_N",
 77			  "SPI_MISO",
 78			  "SPI_MOSI",
 79			  "SPI_SCLK",
 80			  "GPIO12",
 81			  "GPIO13",
 82			  /* Serial port */
 83			  "TXD1",
 84			  "RXD1",
 85			  "GPIO16",
 86			  "GPIO17",
 87			  "GPIO18",
 88			  "GPIO19",
 89			  "GPIO20",
 90			  "GPIO21",
 91			  "GPIO22",
 92			  "GPIO23",
 93			  "GPIO24",
 94			  "GPIO25",
 95			  "GPIO26",
 96			  "GPIO27",
 97			  "HDMI_HPD_N",
 98			  "STATUS_LED_G",
 99			  /* Used by BT module */
100			  "CTS0",
101			  "RTS0",
102			  "TXD0",
103			  "RXD0",
104			  /* Used by Wifi */
105			  "SD1_CLK",
106			  "SD1_CMD",
107			  "SD1_DATA0",
108			  "SD1_DATA1",
109			  "SD1_DATA2",
110			  "SD1_DATA3",
111			  "PWM0_OUT",
112			  "PWM1_OUT",
113			  "ETHCLK",
114			  "WIFI_CLK",
115			  "SDA0",
116			  "SCL0",
117			  "SMPS_SCL",
118			  "SMPS_SDA",
119			  /* Used by SD Card */
120			  "SD_CLK_R",
121			  "SD_CMD_R",
122			  "SD_DATA0_R",
123			  "SD_DATA1_R",
124			  "SD_DATA2_R",
125			  "SD_DATA3_R";
126};
127
128&hdmi {
129	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
130	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
131	status = "okay";
132};
133
134&pwm {
135	pinctrl-names = "default";
136	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
137	status = "okay";
138};
139
140/* SDHCI is used to control the SDIO for wireless */
141&sdhci {
142	#address-cells = <1>;
143	#size-cells = <0>;
144	pinctrl-names = "default";
145	pinctrl-0 = <&emmc_gpio34>;
146	status = "okay";
147	bus-width = <4>;
148	non-removable;
149	mmc-pwrseq = <&wifi_pwrseq>;
150
151	brcmf: wifi@1 {
152		reg = <1>;
153		compatible = "brcm,bcm4329-fmac";
154	};
155};
156
157/* SDHOST is used to drive the SD card */
158&sdhost {
159	pinctrl-names = "default";
160	pinctrl-0 = <&sdhost_gpio48>;
161	status = "okay";
162	bus-width = <4>;
163};
164
165/* uart0 communicates with the BT module */
166&uart0 {
167	pinctrl-names = "default";
168	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
169	status = "okay";
170
171	bluetooth {
172		compatible = "brcm,bcm43438-bt";
173		max-speed = <2000000>;
174		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
175	};
176};
177
178/* uart1 is mapped to the pin header */
179&uart1 {
180	pinctrl-names = "default";
181	pinctrl-0 = <&uart1_gpio14>;
182	status = "okay";
183};