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", "brcm,genet-v5", "brcm,bcm2711-genet-v5".
6- reg: address and length of the register set for the device
7- interrupts and/or interrupts-extended: must be two cells, the first cell
8  is the general purpose interrupt line, while the second cell is the
9  interrupt for the ring RX and TX queues operating in ring mode.  An
10  optional third interrupt cell for Wake-on-LAN can be specified.
11  See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
12  for information on the property specifics.
13- phy-mode: see ethernet.txt file in the same directory
14- #address-cells: should be 1
15- #size-cells: should be 1
16
17Optional properties:
18- clocks: When provided, must be two phandles to the functional clocks nodes
19  of the GENET block. The first phandle is the main GENET clock used during
20  normal operation, while the second phandle is the Wake-on-LAN clock.
21- clock-names: When provided, names of the functional clock phandles, first
22  name should be "enet" and second should be "enet-wol".
23
24- phy-handle: See ethernet.txt file in the same directory; used to describe
25  configurations where a PHY (internal or external) is used.
26
27- fixed-link: When the GENET interface is connected to a MoCA hardware block or
28  when operating in a RGMII to RGMII type of connection, or when the MDIO bus is
29  voluntarily disabled, this property should be used to describe the "fixed link".
30  See Documentation/devicetree/bindings/net/fixed-link.txt for information on
31  the property specifics
32
33Required child nodes:
34
35- mdio bus node: this node should always be present regardless of the PHY
36  configuration of the GENET instance
37
38MDIO bus node required properties:
39
40- compatible: should contain one of "brcm,genet-mdio-v1", "brcm,genet-mdio-v2"
41  "brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5", the version
42  has to match the parent node compatible property (e.g: brcm,genet-v4 pairs
43  with brcm,genet-mdio-v4)
44- reg: address and length relative to the parent node base register address
45- #address-cells: address cell for MDIO bus addressing, should be 1
46- #size-cells: size of the cells for MDIO bus addressing, should be 0
47
48Ethernet PHY node properties:
49
50See Documentation/devicetree/bindings/net/phy.txt for the list of required and
51optional properties.
52
53Internal Gigabit PHY example:
54
55ethernet@f0b60000 {
56	phy-mode = "internal";
57	phy-handle = <&phy1>;
58	mac-address = [ 00 10 18 36 23 1a ];
59	compatible = "brcm,genet-v4";
60	#address-cells = <0x1>;
61	#size-cells = <0x1>;
62	reg = <0xf0b60000 0xfc4c>;
63	interrupts = <0x0 0x14 0x0>, <0x0 0x15 0x0>;
64
65	mdio@e14 {
66		compatible = "brcm,genet-mdio-v4";
67		#address-cells = <0x1>;
68		#size-cells = <0x0>;
69		reg = <0xe14 0x8>;
70
71		phy1: ethernet-phy@1 {
72			max-speed = <1000>;
73			reg = <0x1>;
74			compatible = "ethernet-phy-ieee802.3-c22";
75		};
76	};
77};
78
79MoCA interface / MAC to MAC example:
80
81ethernet@f0b80000 {
82	phy-mode = "moca";
83	fixed-link = <1 0 1000 0 0>;
84	mac-address = [ 00 10 18 36 24 1a ];
85	compatible = "brcm,genet-v4";
86	#address-cells = <0x1>;
87	#size-cells = <0x1>;
88	reg = <0xf0b80000 0xfc4c>;
89	interrupts = <0x0 0x16 0x0>, <0x0 0x17 0x0>;
90
91	mdio@e14 {
92		compatible = "brcm,genet-mdio-v4";
93		#address-cells = <0x1>;
94		#size-cells = <0x0>;
95		reg = <0xe14 0x8>;
96	};
97};
98
99
100External MDIO-connected Gigabit PHY/switch:
101
102ethernet@f0ba0000 {
103	phy-mode = "rgmii";
104	phy-handle = <&phy0>;
105	mac-address = [ 00 10 18 36 26 1a ];
106	compatible = "brcm,genet-v4";
107	#address-cells = <0x1>;
108	#size-cells = <0x1>;
109	reg = <0xf0ba0000 0xfc4c>;
110	interrupts = <0x0 0x18 0x0>, <0x0 0x19 0x0>;
111
112	mdio@e14 {
113		compatible = "brcm,genet-mdio-v4";
114		#address-cells = <0x1>;
115		#size-cells = <0x0>;
116		reg = <0xe14 0x8>;
117
118		phy0: ethernet-phy@0 {
119			max-speed = <1000>;
120			reg = <0x0>;
121			compatible = "ethernet-phy-ieee802.3-c22";
122		};
123	};
124};
125