1* Broadcom BCM7xxx Ethernet Controller (GENET)
2
3Required properties:
4- compatible: should contain one of "brcm,genet-v1", "brcm,genet-v2",
5  "brcm,genet-v3", "brcm,genet-v4".
6- reg: address and length of the register set for the device
7- interrupts: must be two cells, the first cell is the general purpose
8  interrupt line, while the second cell is the interrupt for the ring
9  RX and TX queues operating in ring mode
10- phy-mode: see ethernet.txt file in the same directory
11- #address-cells: should be 1
12- #size-cells: should be 1
13
14Optional properties:
15- clocks: When provided, must be two phandles to the functional clocks nodes
16  of the GENET block. The first phandle is the main GENET clock used during
17  normal operation, while the second phandle is the Wake-on-LAN clock.
18- clock-names: When provided, names of the functional clock phandles, first
19  name should be "enet" and second should be "enet-wol".
20
21- phy-handle: See ethernet.txt file in the same directory; used to describe
22  configurations where a PHY (internal or external) is used.
23
24- fixed-link: When the GENET interface is connected to a MoCA hardware block or
25  when operating in a RGMII to RGMII type of connection, or when the MDIO bus is
26  voluntarily disabled, this property should be used to describe the "fixed link".
27  See Documentation/devicetree/bindings/net/fixed-link.txt for information on
28  the property specifics
29
30Required child nodes:
31
32- mdio bus node: this node should always be present regarless of the PHY
33  configuration of the GENET instance
34
35MDIO bus node required properties:
36
37- compatible: should contain one of "brcm,genet-mdio-v1", "brcm,genet-mdio-v2"
38  "brcm,genet-mdio-v3", "brcm,genet-mdio-v4", the version has to match the
39  parent node compatible property (e.g: brcm,genet-v4 pairs with
40  brcm,genet-mdio-v4)
41- reg: address and length relative to the parent node base register address
42- #address-cells: address cell for MDIO bus addressing, should be 1
43- #size-cells: size of the cells for MDIO bus addressing, should be 0
44
45Ethernet PHY node properties:
46
47See Documentation/devicetree/bindings/net/phy.txt for the list of required and
48optional properties.
49
50Internal Gigabit PHY example:
51
52ethernet@f0b60000 {
53	phy-mode = "internal";
54	phy-handle = <&phy1>;
55	mac-address = [ 00 10 18 36 23 1a ];
56	compatible = "brcm,genet-v4";
57	#address-cells = <0x1>;
58	#size-cells = <0x1>;
59	reg = <0xf0b60000 0xfc4c>;
60	interrupts = <0x0 0x14 0x0>, <0x0 0x15 0x0>;
61
62	mdio@e14 {
63		compatible = "brcm,genet-mdio-v4";
64		#address-cells = <0x1>;
65		#size-cells = <0x0>;
66		reg = <0xe14 0x8>;
67
68		phy1: ethernet-phy@1 {
69			max-speed = <1000>;
70			reg = <0x1>;
71			compatible = "brcm,28nm-gphy", "ethernet-phy-ieee802.3-c22";
72		};
73	};
74};
75
76MoCA interface / MAC to MAC example:
77
78ethernet@f0b80000 {
79	phy-mode = "moca";
80	fixed-link = <1 0 1000 0 0>;
81	mac-address = [ 00 10 18 36 24 1a ];
82	compatible = "brcm,genet-v4";
83	#address-cells = <0x1>;
84	#size-cells = <0x1>;
85	reg = <0xf0b80000 0xfc4c>;
86	interrupts = <0x0 0x16 0x0>, <0x0 0x17 0x0>;
87
88	mdio@e14 {
89		compatible = "brcm,genet-mdio-v4";
90		#address-cells = <0x1>;
91		#size-cells = <0x0>;
92		reg = <0xe14 0x8>;
93	};
94};
95
96
97External MDIO-connected Gigabit PHY/switch:
98
99ethernet@f0ba0000 {
100	phy-mode = "rgmii";
101	phy-handle = <&phy0>;
102	mac-address = [ 00 10 18 36 26 1a ];
103	compatible = "brcm,genet-v4";
104	#address-cells = <0x1>;
105	#size-cells = <0x1>;
106	reg = <0xf0ba0000 0xfc4c>;
107	interrupts = <0x0 0x18 0x0>, <0x0 0x19 0x0>;
108
109	mdio@0e14 {
110		compatible = "brcm,genet-mdio-v4";
111		#address-cells = <0x1>;
112		#size-cells = <0x0>;
113		reg = <0xe14 0x8>;
114
115		phy0: ethernet-phy@0 {
116			max-speed = <1000>;
117			reg = <0x0>;
118			compatible = "brcm,bcm53125", "ethernet-phy-ieee802.3-c22";
119		};
120	};
121};
122