// SPDX-License-Identifier: GPL-2.0 /dts-v1/; #include "bcm2837.dtsi" #include "bcm2836-rpi.dtsi" #include "bcm283x-rpi-lan7515.dtsi" #include "bcm283x-rpi-usb-host.dtsi" / { compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837"; model = "Raspberry Pi 3 Model B+"; chosen { /* 8250 auxiliary UART instead of pl011 */ stdout-path = "serial1:115200n8"; }; memory@0 { device_type = "memory"; reg = <0 0x40000000>; }; leds { act { gpios = <&gpio 29 GPIO_ACTIVE_HIGH>; }; pwr { label = "PWR"; gpios = <&expgpio 2 GPIO_ACTIVE_LOW>; }; }; wifi_pwrseq: wifi-pwrseq { compatible = "mmc-pwrseq-simple"; reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>; }; }; &firmware { expgpio: gpio { compatible = "raspberrypi,firmware-gpio"; gpio-controller; #gpio-cells = <2>; gpio-line-names = "BT_ON", "WL_ON", "STATUS_LED_R", "LAN_RUN", "", "CAM_GPIO0", "CAM_GPIO1", ""; status = "okay"; }; }; &gpio { /* * Taken from rpi_SCH_3bplus_1p0_reduced.pdf and * the official GPU firmware DT blob. * * Legend: * "NC" = not connected (no rail from the SoC) * "FOO" = GPIO line named "FOO" on the schematic * "FOO_N" = GPIO line named "FOO" on schematic, active low */ gpio-line-names = "ID_SDA", "ID_SCL", "SDA1", "SCL1", "GPIO_GCLK", "GPIO5", "GPIO6", "SPI_CE1_N", "SPI_CE0_N", "SPI_MISO", "SPI_MOSI", "SPI_SCLK", "GPIO12", "GPIO13", /* Serial port */ "TXD1", "RXD1", "GPIO16", "GPIO17", "GPIO18", "GPIO19", "GPIO20", "GPIO21", "GPIO22", "GPIO23", "GPIO24", "GPIO25", "GPIO26", "GPIO27", "HDMI_HPD_N", "STATUS_LED_G", /* Used by BT module */ "CTS0", "RTS0", "TXD0", "RXD0", /* Used by Wifi */ "SD1_CLK", "SD1_CMD", "SD1_DATA0", "SD1_DATA1", "SD1_DATA2", "SD1_DATA3", "PWM0_OUT", "PWM1_OUT", "ETHCLK", "WIFI_CLK", "SDA0", "SCL0", "SMPS_SCL", "SMPS_SDA", /* Used by SD Card */ "SD_CLK_R", "SD_CMD_R", "SD_DATA0_R", "SD_DATA1_R", "SD_DATA2_R", "SD_DATA3_R"; }; &hdmi { hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>; power-domains = <&power RPI_POWER_DOMAIN_HDMI>; status = "okay"; }; &pwm { pinctrl-names = "default"; pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>; status = "okay"; }; /* SDHCI is used to control the SDIO for wireless */ &sdhci { #address-cells = <1>; #size-cells = <0>; pinctrl-names = "default"; pinctrl-0 = <&emmc_gpio34>; status = "okay"; bus-width = <4>; non-removable; mmc-pwrseq = <&wifi_pwrseq>; brcmf: wifi@1 { reg = <1>; compatible = "brcm,bcm4329-fmac"; }; }; /* SDHOST is used to drive the SD card */ &sdhost { pinctrl-names = "default"; pinctrl-0 = <&sdhost_gpio48>; status = "okay"; bus-width = <4>; }; /* uart0 communicates with the BT module */ &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>; status = "okay"; bluetooth { compatible = "brcm,bcm43438-bt"; max-speed = <2000000>; shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>; }; }; /* uart1 is mapped to the pin header */ &uart1 { pinctrl-names = "default"; pinctrl-0 = <&uart1_gpio14>; status = "okay"; };