Commit | Line | Data |
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2ba1b163 FF |
1 | * Broadcom UniMAC MDIO bus controller |
2 | ||
3 | Required properties: | |
4 | - compatible: should one from "brcm,genet-mdio-v1", "brcm,genet-mdio-v2", | |
5 | "brcm,genet-mdio-v3", "brcm,genet-mdio-v4" or "brcm,unimac-mdio" | |
6 | - reg: address and length of the regsiter set for the device, first one is the | |
7 | base register, and the second one is optional and for indirect accesses to | |
8 | larger than 16-bits MDIO transactions | |
9 | - reg-names: name(s) of the register must be "mdio" and optional "mdio_indir_rw" | |
10 | - #size-cells: must be 1 | |
11 | - #address-cells: must be 0 | |
12 | ||
13 | Optional properties: | |
14 | - interrupts: must be one if the interrupt is shared with the Ethernet MAC or | |
15 | Ethernet switch this MDIO block is integrated from, or must be two, if there | |
16 | are two separate interrupts, first one must be "mdio done" and second must be | |
17 | for "mdio error" | |
18 | - interrupt-names: must be "mdio_done_error" when there is a share interrupt fed | |
19 | to this hardware block, or must be "mdio_done" for the first interrupt and | |
20 | "mdio_error" for the second when there are separate interrupts | |
21 | ||
22 | Child nodes of this MDIO bus controller node are standard Ethernet PHY device | |
23 | nodes as described in Documentation/devicetree/bindings/net/phy.txt | |
24 | ||
25 | Example: | |
26 | ||
27 | mdio@403c0 { | |
28 | compatible = "brcm,unimac-mdio"; | |
29 | reg = <0x403c0 0x8 0x40300 0x18>; | |
30 | reg-names = "mdio", "mdio_indir_rw"; | |
31 | #size-cells = <1>; | |
32 | #address-cells = <0>; | |
33 | ||
34 | ... | |
35 | phy@0 { | |
36 | compatible = "ethernet-phy-ieee802.3-c22"; | |
37 | reg = <0>; | |
38 | }; | |
39 | }; |