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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /dts-v1/;
   3 #include "bcm2837.dtsi"
   4 #include "bcm2836-rpi.dtsi"
   5 #include "bcm283x-rpi-smsc9514.dtsi"
   6 #include "bcm283x-rpi-usb-host.dtsi"
   7 #include "bcm283x-rpi-wifi-bt.dtsi"
   8
   9 / {
  10         compatible = "raspberrypi,3-model-b", "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 = <&expgpio 2 GPIO_ACTIVE_HIGH>;
  26                 };
  27         };
  28 };
  29
  30 &bt {
  31         shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
  32 };
  33
  34 &firmware {
  35         expgpio: gpio {
  36                 compatible = "raspberrypi,firmware-gpio";
  37                 gpio-controller;
  38                 #gpio-cells = <2>;
  39                 gpio-line-names = "BT_ON",
  40                                   "WL_ON",
  41                                   "STATUS_LED",
  42                                   "LAN_RUN",
  43                                   "HDMI_HPD_N",
  44                                   "CAM_GPIO0",
  45                                   "CAM_GPIO1",
  46                                   "PWR_LOW_N";
  47                 status = "okay";
  48         };
  49 };
  50
  51 &gpio {
  52         /*
  53          * Taken from rpi_SCH_3b_1p2_reduced.pdf and
  54          * the official GPU firmware DT blob.
  55          *
  56          * Legend:
  57          * "FOO" = GPIO line named "FOO" on the schematic
  58          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  59          */
  60         gpio-line-names = "ID_SDA",
  61                           "ID_SCL",
  62                           "SDA1",
  63                           "SCL1",
  64                           "GPIO_GCLK",
  65                           "GPIO5",
  66                           "GPIO6",
  67                           "SPI_CE1_N",
  68                           "SPI_CE0_N",
  69                           "SPI_MISO",
  70                           "SPI_MOSI",
  71                           "SPI_SCLK",
  72                           "GPIO12",
  73                           "GPIO13",
  74                           /* Serial port */
  75                           "TXD1",
  76                           "RXD1",
  77                           "GPIO16",
  78                           "GPIO17",
  79                           "GPIO18",
  80                           "GPIO19",
  81                           "GPIO20",
  82                           "GPIO21",
  83                           "GPIO22",
  84                           "GPIO23",
  85                           "GPIO24",
  86                           "GPIO25",
  87                           "GPIO26",
  88                           "GPIO27",
  89                           "", /* GPIO 28 */
  90                           "LAN_RUN_BOOT",
  91                           /* Used by BT module */
  92                           "CTS0",
  93                           "RTS0",
  94                           "TXD0",
  95                           "RXD0",
  96                           /* Used by Wifi */
  97                           "SD1_CLK",
  98                           "SD1_CMD",
  99                           "SD1_DATA0",
 100                           "SD1_DATA1",
 101                           "SD1_DATA2",
 102                           "SD1_DATA3",
 103                           "PWM0_OUT",
 104                           "PWM1_OUT",
 105                           "ETHCLK",
 106                           "WIFI_CLK",
 107                           "SDA0",
 108                           "SCL0",
 109                           "SMPS_SCL",
 110                           "SMPS_SDA",
 111                           /* Used by SD Card */
 112                           "SD_CLK_R",
 113                           "SD_CMD_R",
 114                           "SD_DATA0_R",
 115                           "SD_DATA1_R",
 116                           "SD_DATA2_R",
 117                           "SD_DATA3_R";
 118 };
 119
 120 &pwm {
 121         pinctrl-names = "default";
 122         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
 123         status = "okay";
 124 };
 125
 126 &hdmi {
 127         hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
 128         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 129         status = "okay";
 130 };
 131
 132 /* uart0 communicates with the BT module */
 133 &uart0 {
 134         pinctrl-names = "default";
 135         pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
 136 };
 137
 138 /* uart1 is mapped to the pin header */
 139 &uart1 {
 140         pinctrl-names = "default";
 141         pinctrl-0 = <&uart1_gpio14>;
 142         status = "okay";
 143 };
 144
 145 /* SDHOST is used to drive the SD card */
 146 &sdhost {
 147         pinctrl-names = "default";
 148         pinctrl-0 = <&sdhost_gpio48>;
 149         status = "okay";
 150         bus-width = <4>;
 151 };
 152
 153 &wifi_pwrseq {
 154         reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
 155 };