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Documentation / devicetree / bindings / net / fsl-fec.txt




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Based on kernel version 3.19. Page generated on 2015-02-13 21:18 EST.

1	* Freescale Fast Ethernet Controller (FEC)
2	
3	Required properties:
4	- compatible : Should be "fsl,<soc>-fec"
5	- reg : Address and length of the register set for the device
6	- interrupts : Should contain fec interrupt
7	- phy-mode : See ethernet.txt file in the same directory
8	
9	Optional properties:
10	- phy-reset-gpios : Should specify the gpio for phy reset
11	- phy-reset-duration : Reset duration in milliseconds.  Should present
12	  only if property "phy-reset-gpios" is available.  Missing the property
13	  will have the duration be 1 millisecond.  Numbers greater than 1000 are
14	  invalid and 1 millisecond will be used instead.
15	- phy-supply : regulator that powers the Ethernet PHY.
16	- phy-handle : phandle to the PHY device connected to this device.
17	- fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
18	  Use instead of phy-handle.
19	- fsl,num-tx-queues : The property is valid for enet-avb IP, which supports
20	  hw multi queues. Should specify the tx queue number, otherwise set tx queue
21	  number to 1.
22	- fsl,num-rx-queues : The property is valid for enet-avb IP, which supports
23	  hw multi queues. Should specify the rx queue number, otherwise set rx queue
24	  number to 1.
25	
26	Optional subnodes:
27	- mdio : specifies the mdio bus in the FEC, used as a container for phy nodes
28	  according to phy.txt in the same directory
29	
30	Example:
31	
32	ethernet@83fec000 {
33		compatible = "fsl,imx51-fec", "fsl,imx27-fec";
34		reg = <0x83fec000 0x4000>;
35		interrupts = <87>;
36		phy-mode = "mii";
37		phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
38		local-mac-address = [00 04 9F 01 1B B9];
39		phy-supply = <&reg_fec_supply>;
40	};
41	
42	Example with phy specified:
43	
44	ethernet@83fec000 {
45		compatible = "fsl,imx51-fec", "fsl,imx27-fec";
46		reg = <0x83fec000 0x4000>;
47		interrupts = <87>;
48		phy-mode = "mii";
49		phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
50		local-mac-address = [00 04 9F 01 1B B9];
51		phy-supply = <&reg_fec_supply>;
52		phy-handle = <&ethphy>;
53		mdio {
54			ethphy: ethernet-phy@6 {
55				compatible = "ethernet-phy-ieee802.3-c22";
56				reg = <6>;
57				max-speed = <100>;
58			};
59		};
60	};
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