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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/dsa/dsa.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ethernet Switch Device Tree Bindings
maintainers:
- Andrew Lunn <andrew@lunn.ch>
- Florian Fainelli <f.fainelli@gmail.com>
- Vivien Didelot <vivien.didelot@gmail.com>
description:
This binding represents Ethernet Switches which have a dedicated CPU
port. That port is usually connected to an Ethernet Controller of the
SoC. Such setups are typical for embedded devices.
select: false
properties:
$nodename:
pattern: "^(ethernet-)?switch(@.*)?$"
dsa,member:
minItems: 2
maxItems: 2
description:
A two element list indicates which DSA cluster, and position within the
cluster a switch takes. <0 0> is cluster 0, switch 0. <0 1> is cluster 0,
switch 1. <1 0> is cluster 1, switch 0. A switch not part of any cluster
(single device hanging off a CPU port) must not specify this property
$ref: /schemas/types.yaml#/definitions/uint32-array
patternProperties:
"^(ethernet-)?ports$":
type: object
properties:
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
"^(ethernet-)?port@[0-9]+$":
type: object
description: Ethernet switch ports
properties:
reg:
description: Port number
label:
description:
Describes the label associated with this port, which will become
the netdev name
$ref: /schemas/types.yaml#/definitions/string
link:
description:
Should be a list of phandles to other switch's DSA port. This
port is used as the outgoing port towards the phandle ports. The
full routing information must be given, not just the one hop
routes to neighbouring switches
$ref: /schemas/types.yaml#/definitions/phandle-array
ethernet:
description:
Should be a phandle to a valid Ethernet device node. This host
device is what the switch port is connected to
$ref: /schemas/types.yaml#/definitions/phandle
dsa-tag-protocol:
description:
Instead of the default, the switch will use this tag protocol if
possible. Useful when a device supports multiple protcols and
the default is incompatible with the Ethernet device.
enum:
- dsa
- edsa
phy-handle: true
phy-mode: true
fixed-link: true
mac-address: true
sfp: true
managed: true
required:
- reg
additionalProperties: false
oneOf:
- required:
- ports
- required:
- ethernet-ports
additionalProperties: true
...
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