1* Freescale Fast Ethernet Controller (FEC)
2
3Required 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
9Optional 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 -interrupt-names:  names of the interrupts listed in interrupts property in
38  the same order. The defaults if not specified are
39  __Number of interrupts__   __Default__
40	1			"int0"
41	2			"int0", "pps"
42	3			"int0", "int1", "int2"
43	4			"int0", "int1", "int2", "pps"
44  The order may be changed as long as they correspond to the interrupts
45  property. Currently, only i.mx7 uses "int1" and "int2". They correspond to
46  tx/rx queues 1 and 2. "int0" will be used for queue 0 and ENET_MII interrupts.
47  For imx6sx, "int0" handles all 3 queues and ENET_MII. "pps" is for the pulse
48  per second interrupt associated with 1588 precision time protocol(PTP).
49
50
51Optional subnodes:
52- mdio : specifies the mdio bus in the FEC, used as a container for phy nodes
53  according to phy.txt in the same directory
54
55Example:
56
57ethernet@83fec000 {
58	compatible = "fsl,imx51-fec", "fsl,imx27-fec";
59	reg = <0x83fec000 0x4000>;
60	interrupts = <87>;
61	phy-mode = "mii";
62	phy-reset-gpios = <&gpio2 14 GPIO_ACTIVE_LOW>; /* GPIO2_14 */
63	local-mac-address = [00 04 9F 01 1B B9];
64	phy-supply = <&reg_fec_supply>;
65};
66
67Example with phy specified:
68
69ethernet@83fec000 {
70	compatible = "fsl,imx51-fec", "fsl,imx27-fec";
71	reg = <0x83fec000 0x4000>;
72	interrupts = <87>;
73	phy-mode = "mii";
74	phy-reset-gpios = <&gpio2 14 GPIO_ACTIVE_LOW>; /* GPIO2_14 */
75	local-mac-address = [00 04 9F 01 1B B9];
76	phy-supply = <&reg_fec_supply>;
77	phy-handle = <&ethphy>;
78	mdio {
79		ethphy: ethernet-phy@6 {
80			compatible = "ethernet-phy-ieee802.3-c22";
81			reg = <6>;
82			max-speed = <100>;
83		};
84	};
85};
86