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1 | * Broadcom BCM7xxx Ethernet Controller (GENET) |
2 | ||
3 | Required 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 | |
e8f08ee0 | 10 | - phy-mode: see ethernet.txt file in the same directory |
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11 | - #address-cells: should be 1 |
12 | - #size-cells: should be 1 | |
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13 | |
14 | Optional properties: | |
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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". | |
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21 | - phy-handle: See ethernet.txt file in the same directory; used to describe |
22 | configurations where a PHY (internal or external) is used. | |
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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". | |
ae21888f | 27 | See Documentation/devicetree/bindings/net/fixed-link.txt for information on |
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28 | the property specifics |
29 | ||
30 | Required child nodes: | |
31 | ||
32 | - mdio bus node: this node should always be present regarless of the PHY | |
33 | configuration of the GENET instance | |
34 | ||
35 | MDIO 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 | |
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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 | |
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44 | |
45 | Ethernet PHY node properties: | |
46 | ||
47 | See Documentation/devicetree/bindings/net/phy.txt for the list of required and | |
48 | optional properties. | |
49 | ||
50 | Internal Gigabit PHY example: | |
51 | ||
52 | ethernet@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>; | |
e4bf797a | 71 | compatible = "ethernet-phy-ieee802.3-c22"; |
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72 | }; |
73 | }; | |
74 | }; | |
75 | ||
76 | MoCA interface / MAC to MAC example: | |
77 | ||
78 | ethernet@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 | ||
97 | External MDIO-connected Gigabit PHY/switch: | |
98 | ||
99 | ethernet@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>; | |
e4bf797a | 118 | compatible = "ethernet-phy-ieee802.3-c22"; |
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119 | }; |
120 | }; | |
121 | }; |