arch/arm/boot/dts/bcm2836-rpi-2-b.dts

   1 // SPDX-License-Identifier: GPL-2.0
   2 /dts-v1/;
   3 #include "bcm2836.dtsi"
   4 #include "bcm2836-rpi.dtsi"
   5 #include "bcm283x-rpi-smsc9514.dtsi"
   6 #include "bcm283x-rpi-usb-host.dtsi"
   7
   8 / {
   9         compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
  10         model = "Raspberry Pi 2 Model B";
  11
  12         memory@0 {
  13                 reg = <0 0x40000000>;
  14         };
  15
  16         leds {
  17                 act {
  18                         gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
  19                 };
  20
  21                 pwr {
  22                         label = "PWR";
  23                         gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
  24                         default-state = "keep";
  25                         linux,default-trigger = "default-on";
  26                 };
  27         };
  28 };
  29
  30 &gpio {
  31         /*
  32          * Taken from rpi_SCH_2b_1p2_reduced.pdf and
  33          * the official GPU firmware DT blob.
  34          *
  35          * Legend:
  36          * "NC" = not connected (no rail from the SoC)
  37          * "FOO" = GPIO line named "FOO" on the schematic
  38          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  39          */
  40         gpio-line-names = "ID_SDA",
  41                           "ID_SCL",
  42                           "SDA1",
  43                           "SCL1",
  44                           "GPIO_GCLK",
  45                           "GPIO5",
  46                           "GPIO6",
  47                           "SPI_CE1_N",
  48                           "SPI_CE0_N",
  49                           "SPI_MISO",
  50                           "SPI_MOSI",
  51                           "SPI_SCLK",
  52                           "GPIO12",
  53                           "GPIO13",
  54                           /* Serial port */
  55                           "TXD0",
  56                           "RXD0",
  57                           "GPIO16",
  58                           "GPIO17",
  59                           "GPIO18",
  60                           "GPIO19",
  61                           "GPIO20",
  62                           "GPIO21",
  63                           "GPIO22",
  64                           "GPIO23",
  65                           "GPIO24",
  66                           "GPIO25",
  67                           "GPIO26",
  68                           "GPIO27",
  69                           "SDA0",
  70                           "SCL0",
  71                           "", /* GPIO30 */
  72                           "LAN_RUN",
  73                           "CAM_GPIO1",
  74                           "", /* GPIO33 */
  75                           "", /* GPIO34 */
  76                           "PWR_LOW_N",
  77                           "", /* GPIO36 */
  78                           "", /* GPIO37 */
  79                           "USB_LIMIT",
  80                           "", /* GPIO39 */
  81                           "PWM0_OUT",
  82                           "CAM_GPIO0",
  83                           "SMPS_SCL",
  84                           "SMPS_SDA",
  85                           "ETHCLK",
  86                           "PWM1_OUT",
  87                           "HDMI_HPD_N",
  88                           "STATUS_LED",
  89                           /* Used by SD Card */
  90                           "SD_CLK_R",
  91                           "SD_CMD_R",
  92                           "SD_DATA0_R",
  93                           "SD_DATA1_R",
  94                           "SD_DATA2_R",
  95                           "SD_DATA3_R";
  96
  97         pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
  98
  99         /* I2S interface */
 100         i2s_alt0: i2s_alt0 {
 101                 brcm,pins = <18 19 20 21>;
 102                 brcm,function = <BCM2835_FSEL_ALT0>;
 103         };
 104 };
 105
 106 &hdmi {
 107         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
 108 };
 109
 110 &pwm {
 111         pinctrl-names = "default";
 112         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
 113         status = "okay";
 114 };
 115
 116 &uart0 {
 117         pinctrl-names = "default";
 118         pinctrl-0 = <&uart0_gpio14>;
 119         status = "okay";
 120 };