xref: /linux/Documentation/devicetree/bindings/net/dsa/dsa.yaml (revision 02680c23d7b3febe45ea3d4f9818c2b2dc89020a) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/net/dsa/dsa.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Ethernet Switch Device Tree Bindings
8
9maintainers:
10  - Andrew Lunn <andrew@lunn.ch>
11  - Florian Fainelli <f.fainelli@gmail.com>
12  - Vivien Didelot <vivien.didelot@gmail.com>
13
14description:
15  This binding represents Ethernet Switches which have a dedicated CPU
16  port. That port is usually connected to an Ethernet Controller of the
17  SoC. Such setups are typical for embedded devices.
18
19select: false
20
21properties:
22  $nodename:
23    pattern: "^(ethernet-)?switch(@.*)?$"
24
25  dsa,member:
26    minItems: 2
27    maxItems: 2
28    description:
29      A two element list indicates which DSA cluster, and position within the
30      cluster a switch takes. <0 0> is cluster 0, switch 0. <0 1> is cluster 0,
31      switch 1. <1 0> is cluster 1, switch 0. A switch not part of any cluster
32      (single device hanging off a CPU port) must not specify this property
33    $ref: /schemas/types.yaml#/definitions/uint32-array
34
35patternProperties:
36  "^(ethernet-)?ports$":
37    type: object
38    properties:
39      '#address-cells':
40        const: 1
41      '#size-cells':
42        const: 0
43
44    patternProperties:
45      "^(ethernet-)?port@[0-9]+$":
46        type: object
47        description: Ethernet switch ports
48
49        properties:
50          reg:
51            description: Port number
52
53          label:
54            description:
55              Describes the label associated with this port, which will become
56              the netdev name
57            $ref: /schemas/types.yaml#/definitions/string
58
59          link:
60            description:
61              Should be a list of phandles to other switch's DSA port. This
62              port is used as the outgoing port towards the phandle ports. The
63              full routing information must be given, not just the one hop
64              routes to neighbouring switches
65            $ref: /schemas/types.yaml#/definitions/phandle-array
66
67          ethernet:
68            description:
69              Should be a phandle to a valid Ethernet device node.  This host
70              device is what the switch port is connected to
71            $ref: /schemas/types.yaml#/definitions/phandle
72
73          dsa-tag-protocol:
74            description:
75              Instead of the default, the switch will use this tag protocol if
76              possible. Useful when a device supports multiple protcols and
77              the default is incompatible with the Ethernet device.
78            enum:
79              - dsa
80              - edsa
81
82          phy-handle: true
83
84          phy-mode: true
85
86          fixed-link: true
87
88          mac-address: true
89
90          sfp: true
91
92          managed: true
93
94        required:
95          - reg
96
97        additionalProperties: false
98
99oneOf:
100  - required:
101      - ports
102  - required:
103      - ethernet-ports
104
105additionalProperties: true
106
107...
108