1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/net/brcm,unimac-mdio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Broadcom UniMAC MDIO bus controller
8
9 maintainers:
10 - Doug Berger <opendmb@gmail.com>
11 - Florian Fainelli <f.fainelli@gmail.com>
12 - Rafał Miłecki <rafal@milecki.pl>
13
14 allOf:
15 - $ref: mdio.yaml#
16
17 properties:
18 compatible:
19 enum:
20 - brcm,genet-mdio-v1
21 - brcm,genet-mdio-v2
22 - brcm,genet-mdio-v3
23 - brcm,genet-mdio-v4
24 - brcm,genet-mdio-v5
25 - brcm,asp-v2.0-mdio
26 - brcm,asp-v2.1-mdio
27 - brcm,asp-v2.2-mdio
28 - brcm,unimac-mdio
29 - brcm,bcm6846-mdio
30
31 reg:
32 minItems: 1
33 items:
34 - description: base register
35 - description: indirect accesses to larger than 16-bits MDIO transactions
36
37 reg-names:
38 minItems: 1
39 items:
40 - const: mdio
41 - const: mdio_indir_rw
42
43 interrupts:
44 oneOf:
45 - description: >
46 Interrupt shared with the Ethernet MAC or Ethernet switch this MDIO
47 block is integrated from
48 - items:
49 - description: |
50 "mdio done" interrupt
51 - description: |
52 "mdio error" interrupt
53
54 interrupt-names:
55 oneOf:
56 - const: mdio_done_error
57 - items:
58 - const: mdio_done
59 - const: mdio_error
60
61 clocks:
62 description: A reference to the clock supplying the MDIO bus controller
63
64 clock-frequency:
65 description: >
66 The MDIO bus clock that must be output by the MDIO bus hardware, if
67 absent, the default hardware values are used
68
69 unevaluatedProperties: false
70
71 required:
72 - reg
73 - '#address-cells'
74 - '#size-cells'
75
76 examples:
77 - |
78 mdio@403c0 {
79 compatible = "brcm,unimac-mdio";
80 reg = <0x403c0 0x8>, <0x40300 0x18>;
81 reg-names = "mdio", "mdio_indir_rw";
82 #address-cells = <1>;
83 #size-cells = <0>;
84
85 ethernet-phy@0 {
86 compatible = "ethernet-phy-ieee802.3-c22";
87 reg = <0>;
88 };
89 };
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