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

   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 #include "bcm283x-rpi-wifi-bt.dtsi"
   8
   9 / {
  10         compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
  11         model = "Raspberry Pi 3 Model B+";
  12
  13         chosen {
  14                 /* 8250 auxiliary UART instead of pl011 */
  15                 stdout-path = "serial1:115200n8";
  16         };
  17
  18         memory@0 {
  19                 device_type = "memory";
  20                 reg = <0 0x40000000>;
  21         };
  22
  23         leds {
  24                 led-act {
  25                         gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
  26                 };
  27
  28                 led-pwr {
  29                         label = "PWR";
  30                         gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
  31                         default-state = "keep";
  32                         linux,default-trigger = "default-on";
  33                 };
  34         };
  35 };
  36
  37 &bt {
  38         shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
  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          * "FOO" = GPIO line named "FOO" on the schematic
  65          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  66          */
  67         gpio-line-names = "ID_SDA",
  68                           "ID_SCL",
  69                           "SDA1",
  70                           "SCL1",
  71                           "GPIO_GCLK",
  72                           "GPIO5",
  73                           "GPIO6",
  74                           "SPI_CE1_N",
  75                           "SPI_CE0_N",
  76                           "SPI_MISO",
  77                           "SPI_MOSI",
  78                           "SPI_SCLK",
  79                           "GPIO12",
  80                           "GPIO13",
  81                           /* Serial port */
  82                           "TXD1",
  83                           "RXD1",
  84                           "GPIO16",
  85                           "GPIO17",
  86                           "GPIO18",
  87                           "GPIO19",
  88                           "GPIO20",
  89                           "GPIO21",
  90                           "GPIO22",
  91                           "GPIO23",
  92                           "GPIO24",
  93                           "GPIO25",
  94                           "GPIO26",
  95                           "GPIO27",
  96                           "HDMI_HPD_N",
  97                           "STATUS_LED_G",
  98                           /* Used by BT module */
  99                           "CTS0",
 100                           "RTS0",
 101                           "TXD0",
 102                           "RXD0",
 103                           /* Used by Wifi */
 104                           "SD1_CLK",
 105                           "SD1_CMD",
 106                           "SD1_DATA0",
 107                           "SD1_DATA1",
 108                           "SD1_DATA2",
 109                           "SD1_DATA3",
 110                           "PWM0_OUT",
 111                           "PWM1_OUT",
 112                           "ETH_CLK",
 113                           "WIFI_CLK",
 114                           "SDA0",
 115                           "SCL0",
 116                           "SMPS_SCL",
 117                           "SMPS_SDA",
 118                           /* Used by SD Card */
 119                           "SD_CLK_R",
 120                           "SD_CMD_R",
 121                           "SD_DATA0_R",
 122                           "SD_DATA1_R",
 123                           "SD_DATA2_R",
 124                           "SD_DATA3_R";
 125 };
 126
 127 &hdmi {
 128         hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
 129         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 130         status = "okay";
 131 };
 132
 133 &pwm {
 134         pinctrl-names = "default";
 135         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
 136         status = "okay";
 137 };
 138
 139 /* SDHOST is used to drive the SD card */
 140 &sdhost {
 141         pinctrl-names = "default";
 142         pinctrl-0 = <&sdhost_gpio48>;
 143         status = "okay";
 144         bus-width = <4>;
 145 };
 146
 147 /* uart0 communicates with the BT module */
 148 &uart0 {
 149         pinctrl-names = "default";
 150         pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
 151 };
 152
 153 /* uart1 is mapped to the pin header */
 154 &uart1 {
 155         pinctrl-names = "default";
 156         pinctrl-0 = <&uart1_gpio14>;
 157         status = "okay";
 158 };
 159
 160 &wifi_pwrseq {
 161         reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
 162 };