arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts

   1 // Overlay for the Microchip ENC28J60 Ethernet Controller - SPI2 Compute Module
   2 // Interrupt pin: 39
   3 /dts-v1/;
   4 /plugin/;
   5
   6 / {
   7         compatible = "brcm,bcm2835";
   8
   9         fragment@0 {
  10                 target = <&spi2>;
  11                 __overlay__ {
  12                         /* needed to avoid dtc warning */
  13                         #address-cells = <1>;
  14                         #size-cells = <0>;
  15
  16                         status = "okay";
  17
  18                         eth1: enc28j60@0{
  19                                 compatible = "microchip,enc28j60";
  20                                 reg = <0>; /* CE0 */
  21                                 pinctrl-names = "default";
  22                                 pinctrl-0 = <&eth1_pins>;
  23                                 interrupt-parent = <&gpio>;
  24                                 interrupts = <39 0x2>; /* falling edge */
  25                                 spi-max-frequency = <12000000>;
  26                                 status = "okay";
  27                         };
  28                 };
  29         };
  30
  31         fragment@1 {
  32                 target = <&gpio>;
  33                 __overlay__ {
  34                         eth1_pins: eth1_pins {
  35                                 brcm,pins = <39>;
  36                                 brcm,function = <0>; /* in */
  37                                 brcm,pull = <0>; /* none */
  38                         };
  39                 };
  40         };
  41
  42         __overrides__ {
  43                 int_pin = <&eth1>, "interrupts:0",
  44                           <&eth1_pins>, "brcm,pins:0";
  45                 speed   = <&eth1>, "spi-max-frequency:0";
  46         };
  47 };