arch/arm/boot/dts/overlays/at86rf233-overlay.dts

   1 /dts-v1/;
   2 /plugin/;
   3
   4 /* Overlay for Atmel AT86RF233 IEEE 802.15.4 WPAN transceiver on spi0.0 */
   5
   6 / {
   7         compatible = "brcm,bcm2835";
   8
   9         fragment@0 {
  10                 target = <&spi0>;
  11                 __overlay__ {
  12                         #address-cells = <1>;
  13                         #size-cells = <0>;
  14
  15                         status = "okay";
  16
  17                         lowpan0: at86rf233@0 {
  18                                 compatible = "atmel,at86rf233";
  19                                 reg = <0>;
  20                                 interrupt-parent = <&gpio>;
  21                                 interrupts = <23 4>; /* active high */
  22                                 reset-gpio = <&gpio 24 1>;
  23                                 sleep-gpio = <&gpio 25 1>;
  24                                 spi-max-frequency = <3000000>;
  25                                 xtal-trim = /bits/ 8 <0xf>;
  26                         };
  27                 };
  28         };
  29
  30         fragment@1 {
  31                 target = <&spidev0>;
  32                 __overlay__ {
  33                         status = "disabled";
  34                 };
  35         };
  36
  37         fragment@2 {
  38                 target = <&gpio>;
  39                 __overlay__ {
  40                         lowpan0_pins: lowpan0_pins {
  41                                 brcm,pins = <23 24 25>;
  42                                 brcm,function = <0 1 1>; /* in out out */
  43                         };
  44                 };
  45         };
  46
  47         __overrides__ {
  48                 interrupt = <&lowpan0>, "interrupts:0",
  49                         <&lowpan0_pins>, "brcm,pins:0";
  50                 reset     = <&lowpan0>, "reset-gpio:4",
  51                         <&lowpan0_pins>, "brcm,pins:4";
  52                 sleep     = <&lowpan0>, "sleep-gpio:4",
  53                         <&lowpan0_pins>, "brcm,pins:8";
  54                 speed     = <&lowpan0>, "spi-max-frequency:0";
  55                 trim      = <&lowpan0>, "xtal-trim.0";
  56         };
  57 };