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




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Based on kernel version 4.8. Page generated on 2016-10-06 23:13 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-reset-active-high : If present then the reset sequence using the GPIO
16	  specified in the "phy-reset-gpios" property is reversed (H=reset state,
17	  L=operation state).
18	- phy-supply : regulator that powers the Ethernet PHY.
19	- phy-handle : phandle to the PHY device connected to this device.
20	- fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
21	  Use instead of phy-handle.
22	- fsl,num-tx-queues : The property is valid for enet-avb IP, which supports
23	  hw multi queues. Should specify the tx queue number, otherwise set tx queue
24	  number to 1.
25	- fsl,num-rx-queues : The property is valid for enet-avb IP, which supports
26	  hw multi queues. Should specify the rx queue number, otherwise set rx queue
27	  number to 1.
28	- fsl,magic-packet : If present, indicates that the hardware supports waking
29	  up via magic packet.
30	- fsl,err006687-workaround-present: If present indicates that the system has
31	  the hardware workaround for ERR006687 applied and does not need a software
32	  workaround.
33	
34	Optional subnodes:
35	- mdio : specifies the mdio bus in the FEC, used as a container for phy nodes
36	  according to phy.txt in the same directory
37	
38	Example:
39	
40	ethernet@83fec000 {
41		compatible = "fsl,imx51-fec", "fsl,imx27-fec";
42		reg = <0x83fec000 0x4000>;
43		interrupts = <87>;
44		phy-mode = "mii";
45		phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
46		local-mac-address = [00 04 9F 01 1B B9];
47		phy-supply = <&reg_fec_supply>;
48	};
49	
50	Example with phy specified:
51	
52	ethernet@83fec000 {
53		compatible = "fsl,imx51-fec", "fsl,imx27-fec";
54		reg = <0x83fec000 0x4000>;
55		interrupts = <87>;
56		phy-mode = "mii";
57		phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
58		local-mac-address = [00 04 9F 01 1B B9];
59		phy-supply = <&reg_fec_supply>;
60		phy-handle = <&ethphy>;
61		mdio {
62			ethphy: ethernet-phy@6 {
63				compatible = "ethernet-phy-ieee802.3-c22";
64				reg = <6>;
65				max-speed = <100>;
66			};
67		};
68	};
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