Documentation/devicetree/bindings/net/smsc911x.txt

   1 * Smart Mixed-Signal Connectivity (SMSC) LAN911x/912x Controller
   2
   3 Required properties:
   4 - compatible : Should be "smsc,lan<model>", "smsc,lan9115"
   5 - reg : Address and length of the io space for SMSC LAN
   6 - interrupts : one or two interrupt specifiers
   7   - The first interrupt is the SMSC LAN interrupt line
   8   - The second interrupt (if present) is the PME (power
   9     management event) interrupt that is able to wake up the host
  10      system with a 50ms pulse on network activity
  11 - phy-mode : See ethernet.txt file in the same directory
  12
  13 Optional properties:
  14 - reg-shift : Specify the quantity to shift the register offsets by
  15 - reg-io-width : Specify the size (in bytes) of the IO accesses that
  16   should be performed on the device.  Valid value for SMSC LAN is
  17   2 or 4.  If it's omitted or invalid, the size would be 2.
  18 - smsc,irq-active-high : Indicates the IRQ polarity is active-high
  19 - smsc,irq-push-pull : Indicates the IRQ type is push-pull
  20 - smsc,force-internal-phy : Forces SMSC LAN controller to use
  21   internal PHY
  22 - smsc,force-external-phy : Forces SMSC LAN controller to use
  23   external PHY
  24 - smsc,save-mac-address : Indicates that mac address needs to be saved
  25   before resetting the controller
  26 - reset-gpios : a GPIO line connected to the RESET (active low) signal
  27   of the device. On many systems this is wired high so the device goes
  28   out of reset at power-on, but if it is under program control, this
  29   optional GPIO can wake up in response to it.
  30 - vdd33a-supply, vddvario-supply : 3.3V analog and IO logic power supplies
  31
  32 Examples:
  33
  34 lan9220@f4000000 {
  35         compatible = "smsc,lan9220", "smsc,lan9115";
  36         reg = <0xf4000000 0x2000000>;
  37         phy-mode = "mii";
  38         interrupt-parent = <&gpio1>;
  39         interrupts = <31>, <32>;
  40         reset-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
  41         reg-io-width = <4>;
  42         smsc,irq-push-pull;
  43 };