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




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:55 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-reset-post-delay : Post reset delay in milliseconds. If present then
19	  a delay of phy-reset-post-delay milliseconds will be observed after the
20	  phy-reset-gpios has been toggled. Can be omitted thus no delay is
21	  observed. Delay is in range of 1ms to 1000ms. Other delays are invalid.
22	- phy-supply : regulator that powers the Ethernet PHY.
23	- phy-handle : phandle to the PHY device connected to this device.
24	- fixed-link : Assume a fixed link. See fixed-link.txt in the same directory.
25	  Use instead of phy-handle.
26	- fsl,num-tx-queues : The property is valid for enet-avb IP, which supports
27	  hw multi queues. Should specify the tx queue number, otherwise set tx queue
28	  number to 1.
29	- fsl,num-rx-queues : The property is valid for enet-avb IP, which supports
30	  hw multi queues. Should specify the rx queue number, otherwise set rx queue
31	  number to 1.
32	- fsl,magic-packet : If present, indicates that the hardware supports waking
33	  up via magic packet.
34	- fsl,err006687-workaround-present: If present indicates that the system has
35	  the hardware workaround for ERR006687 applied and does not need a software
36	  workaround.
37	
38	Optional subnodes:
39	- mdio : specifies the mdio bus in the FEC, used as a container for phy nodes
40	  according to phy.txt in the same directory
41	
42	Example:
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	};
53	
54	Example with phy specified:
55	
56	ethernet@83fec000 {
57		compatible = "fsl,imx51-fec", "fsl,imx27-fec";
58		reg = <0x83fec000 0x4000>;
59		interrupts = <87>;
60		phy-mode = "mii";
61		phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
62		local-mac-address = [00 04 9F 01 1B B9];
63		phy-supply = <&reg_fec_supply>;
64		phy-handle = <&ethphy>;
65		mdio {
66			ethphy: ethernet-phy@6 {
67				compatible = "ethernet-phy-ieee802.3-c22";
68				reg = <6>;
69				max-speed = <100>;
70			};
71		};
72	};
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