| * Smart Mixed-Signal Connectivity (SMSC) LAN911x/912x Controller |
| |
| Required properties: |
| - compatible : Should be "smsc,lan<model>", "smsc,lan9115" |
| - reg : Address and length of the io space for SMSC LAN |
| - interrupts : one or two interrupt specifiers |
| - The first interrupt is the SMSC LAN interrupt line |
| - The second interrupt (if present) is the PME (power |
| management event) interrupt that is able to wake up the host |
| system with a 50ms pulse on network activity |
| - phy-mode : See ethernet.txt file in the same directory |
| |
| Optional properties: |
| - reg-shift : Specify the quantity to shift the register offsets by |
| - reg-io-width : Specify the size (in bytes) of the IO accesses that |
| should be performed on the device. Valid value for SMSC LAN is |
| 2 or 4. If it's omitted or invalid, the size would be 2. |
| - smsc,irq-active-high : Indicates the IRQ polarity is active-high |
| - smsc,irq-push-pull : Indicates the IRQ type is push-pull |
| - smsc,force-internal-phy : Forces SMSC LAN controller to use |
| internal PHY |
| - smsc,force-external-phy : Forces SMSC LAN controller to use |
| external PHY |
| - smsc,save-mac-address : Indicates that mac address needs to be saved |
| before resetting the controller |
| - reset-gpios : a GPIO line connected to the RESET (active low) signal |
| of the device. On many systems this is wired high so the device goes |
| out of reset at power-on, but if it is under program control, this |
| optional GPIO can wake up in response to it. |
| |
| Examples: |
| |
| lan9220@f4000000 { |
| compatible = "smsc,lan9220", "smsc,lan9115"; |
| reg = <0xf4000000 0x2000000>; |
| phy-mode = "mii"; |
| interrupt-parent = <&gpio1>; |
| interrupts = <31>, <32>; |
| reset-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>; |
| reg-io-width = <4>; |
| smsc,irq-push-pull; |
| }; |
