arch/arm/boot/dts/bcm2837-rpi-3-b.dts

// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2837.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-smsc9514.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"

/ {
	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
	model = "Raspberry Pi 3 Model B";

	chosen {
		/* 8250 auxiliary UART instead of pl011 */
		stdout-path = "serial1:115200n8";
	};

	memory {
		reg = <0 0x40000000>;
	};

	leds {
		act {
			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
		};
	};
};

&firmware {
	expgpio: gpio {
		compatible = "raspberrypi,firmware-gpio";
		gpio-controller;
		#gpio-cells = <2>;
		gpio-line-names = "BT_ON",
				  "WL_ON",
				  "STATUS_LED",
				  "LAN_RUN",
				  "HPD_N",
				  "CAM_GPIO0",
				  "CAM_GPIO1",
				  "PWR_LOW_N";
		status = "okay";
	};
};

/* uart0 communicates with the BT module */
&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
	status = "okay";

	bluetooth {
		compatible = "brcm,bcm43438-bt";
		max-speed = <2000000>;
	};
};

/* uart1 is mapped to the pin header */
&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_gpio14>;
	status = "okay";
};

/* SDHCI is used to control the SDIO for wireless */
&sdhci {
	pinctrl-names = "default";
	pinctrl-0 = <&emmc_gpio34>;
	status = "okay";
	bus-width = <4>;
	non-removable;
};

/* SDHOST is used to drive the SD card */
&sdhost {
	pinctrl-names = "default";
	pinctrl-0 = <&sdhost_gpio48>;
	status = "okay";
	bus-width = <4>;
};