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 "PWR_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}; 184