xref: /linux/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
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
7title: Broadcom UniMAC MDIO bus controller
8
9maintainers:
10  - Doug Berger <opendmb@gmail.com>
11  - Florian Fainelli <f.fainelli@gmail.com>
12  - Rafał Miłecki <rafal@milecki.pl>
13
14allOf:
15  - $ref: mdio.yaml#
16
17properties:
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
69unevaluatedProperties: false
70
71required:
72  - reg
73  - '#address-cells'
74  - '#size-cells'
75
76examples:
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    };
90