arch/arm/boot/dts/broadcom/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-led-deprecated.dtsi"
   6 #include "bcm283x-rpi-smsc9514.dtsi"
   7 #include "bcm283x-rpi-usb-host.dtsi"
   8
   9 / {
  10         compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
  11         model = "Raspberry Pi 2 Model B";
  12
  13         memory@0 {
  14                 device_type = "memory";
  15                 reg = <0 0x40000000>;
  16         };
  17 };
  18
  19 &gpio {
  20         /*
  21          * Taken from rpi_SCH_2b_1p2_reduced.pdf and
  22          * the official GPU firmware DT blob.
  23          *
  24          * Legend:
  25          * "FOO" = GPIO line named "FOO" on the schematic
  26          * "FOO_N" = GPIO line named "FOO" on schematic, active low
  27          */
  28         gpio-line-names = "ID_SDA",
  29                           "ID_SCL",
  30                           "SDA1",
  31                           "SCL1",
  32                           "GPIO_GCLK",
  33                           "GPIO5",
  34                           "GPIO6",
  35                           "SPI_CE1_N",
  36                           "SPI_CE0_N",
  37                           "SPI_MISO",
  38                           "SPI_MOSI",
  39                           "SPI_SCLK",
  40                           "GPIO12",
  41                           "GPIO13",
  42                           /* Serial port */
  43                           "TXD0",
  44                           "RXD0",
  45                           "GPIO16",
  46                           "GPIO17",
  47                           "GPIO18",
  48                           "GPIO19",
  49                           "GPIO20",
  50                           "GPIO21",
  51                           "GPIO22",
  52                           "GPIO23",
  53                           "GPIO24",
  54                           "GPIO25",
  55                           "GPIO26",
  56                           "GPIO27",
  57                           "SDA0",
  58                           "SCL0",
  59                           "", /* GPIO30 */
  60                           "LAN_RUN",
  61                           "CAM_GPIO1",
  62                           "", /* GPIO33 */
  63                           "", /* GPIO34 */
  64                           "PWR_LOW_N",
  65                           "", /* GPIO36 */
  66                           "", /* GPIO37 */
  67                           "USB_LIMIT",
  68                           "", /* GPIO39 */
  69                           "PWM0_OUT",
  70                           "CAM_GPIO0",
  71                           "SMPS_SCL",
  72                           "SMPS_SDA",
  73                           "ETH_CLK",
  74                           "PWM1_OUT",
  75                           "HDMI_HPD_N",
  76                           "STATUS_LED",
  77                           /* Used by SD Card */
  78                           "SD_CLK_R",
  79                           "SD_CMD_R",
  80                           "SD_DATA0_R",
  81                           "SD_DATA1_R",
  82                           "SD_DATA2_R",
  83                           "SD_DATA3_R";
  84
  85         pinctrl-names = "default";
  86         pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
  87
  88         /* I2S interface */
  89         i2s_alt0: i2s_alt0 {
  90                 brcm,pins = <18 19 20 21>;
  91                 brcm,function = <BCM2835_FSEL_ALT0>;
  92         };
  93 };
  94
  95 &hdmi {
  96         hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
  97         power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
  98         status = "okay";
  99 };
 100
 101 &led_act {
 102         gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
 103 };
 104
 105 &leds {
 106         led-pwr {
 107                 label = "PWR";
 108                 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
 109                 default-state = "keep";
 110                 linux,default-trigger = "default-on";
 111         };
 112 };
 113
 114 &pwm {
 115         pinctrl-names = "default";
 116         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
 117         status = "okay";
 118 };
 119
 120 &sdhost {
 121         pinctrl-names = "default";
 122         pinctrl-0 = <&sdhost_gpio48>;
 123         bus-width = <4>;
 124         status = "okay";
 125 };
 126
 127 &uart0 {
 128         pinctrl-names = "default";
 129         pinctrl-0 = <&uart0_gpio14>;
 130         status = "okay";
 131 };