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Documentation / devicetree / bindings / net / smsc911x.txt




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:55 EST.

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	};
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