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 "bcm2835-rpi.dtsi"
   5 #include "bcm283x-rpi-smsc9514.dtsi"
   6 #include "bcm283x-rpi-usb-host.dtsi"
   7
   8 / {
   9         compatible = "raspberrypi,3-model-b", "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 {
  18                 reg = <0 0x40000000>;
  19         };
  20
  21         leds {
  22                 act {
  23                         gpios = <&expgpio 2 GPIO_ACTIVE_HIGH>;
  24                 };
  25         };
  26
  27         wifi_pwrseq: wifi-pwrseq {
  28                 compatible = "mmc-pwrseq-simple";
  29                 reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
  30         };
  31 };
  32
  33 &firmware {
  34         expgpio: gpio {
  35                 compatible = "raspberrypi,firmware-gpio";
  36                 gpio-controller;
  37                 #gpio-cells = <2>;
  38                 gpio-line-names = "BT_ON",
  39                                   "WL_ON",
  40                                   "STATUS_LED",
  41                                   "LAN_RUN",
  42                                   "HPD_N",
  43                                   "CAM_GPIO0",
  44                                   "CAM_GPIO1",
  45                                   "PWR_LOW_N";
  46                 status = "okay";
  47         };
  48 };
  49
  50 &pwm {
  51         pinctrl-names = "default";
  52         pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
  53         status = "okay";
  54 };
  55
  56 &hdmi {
  57         hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
  58 };
  59
  60 /* uart0 communicates with the BT module */
  61 &uart0 {
  62         pinctrl-names = "default";
  63         pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
  64         status = "okay";
  65
  66         bluetooth {
  67                 compatible = "brcm,bcm43438-bt";
  68                 max-speed = <2000000>;
  69                 shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
  70         };
  71 };
  72
  73 /* uart1 is mapped to the pin header */
  74 &uart1 {
  75         pinctrl-names = "default";
  76         pinctrl-0 = <&uart1_gpio14>;
  77         status = "okay";
  78 };
  79
  80 /* SDHCI is used to control the SDIO for wireless */
  81 &sdhci {
  82         #address-cells = <1>;
  83         #size-cells = <0>;
  84         pinctrl-names = "default";
  85         pinctrl-0 = <&emmc_gpio34>;
  86         status = "okay";
  87         bus-width = <4>;
  88         non-removable;
  89         mmc-pwrseq = <&wifi_pwrseq>;
  90
  91         brcmf: wifi@1 {
  92                 reg = <1>;
  93                 compatible = "brcm,bcm4329-fmac";
  94         };
  95 };
  96
  97 /* SDHOST is used to drive the SD card */
  98 &sdhost {
  99         pinctrl-names = "default";
 100         pinctrl-0 = <&sdhost_gpio48>;
 101         status = "okay";
 102         bus-width = <4>;
 103 };