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