xref: /linux/Documentation/devicetree/bindings/net/ethernet-controller.yaml (revision 9f2c9170934eace462499ba0bfe042cc72900173)
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/net/ethernet-controller.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Ethernet Controller Common Properties
8
9maintainers:
10  - David S. Miller <davem@davemloft.net>
11
12properties:
13  $nodename:
14    pattern: "^ethernet(@.*)?$"
15
16  label:
17    $ref: /schemas/types.yaml#/definitions/string
18    description: Human readable label on a port of a box.
19
20  local-mac-address:
21    description:
22      Specifies the MAC address that was assigned to the network device.
23    $ref: /schemas/types.yaml#/definitions/uint8-array
24    minItems: 6
25    maxItems: 6
26
27  mac-address:
28    description:
29      Specifies the MAC address that was last used by the boot
30      program; should be used in cases where the MAC address assigned
31      to the device by the boot program is different from the
32      local-mac-address property.
33    $ref: /schemas/types.yaml#/definitions/uint8-array
34    minItems: 6
35    maxItems: 6
36
37  max-frame-size:
38    $ref: /schemas/types.yaml#/definitions/uint32
39    description:
40      Maximum transfer unit (IEEE defined MTU), rather than the
41      maximum frame size (there\'s contradiction in the Devicetree
42      Specification).
43
44  max-speed:
45    $ref: /schemas/types.yaml#/definitions/uint32
46    description:
47      Specifies maximum speed in Mbit/s supported by the device.
48
49  nvmem-cells:
50    maxItems: 1
51    description:
52      Reference to an nvmem node for the MAC address
53
54  nvmem-cell-names:
55    const: mac-address
56
57  phy-connection-type:
58    description:
59      Specifies interface type between the Ethernet device and a physical
60      layer (PHY) device.
61    enum:
62      # There is not a standard bus between the MAC and the PHY,
63      # something proprietary is being used to embed the PHY in the
64      # MAC.
65      - internal
66      - mii
67      - gmii
68      - sgmii
69      - qsgmii
70      - qusgmii
71      - tbi
72      - rev-mii
73      - rmii
74      - rev-rmii
75      - moca
76
77      # RX and TX delays are added by the MAC when required
78      - rgmii
79
80      # RGMII with internal RX and TX delays provided by the PHY,
81      # the MAC should not add the RX or TX delays in this case
82      - rgmii-id
83
84      # RGMII with internal RX delay provided by the PHY, the MAC
85      # should not add an RX delay in this case
86      - rgmii-rxid
87
88      # RGMII with internal TX delay provided by the PHY, the MAC
89      # should not add an TX delay in this case
90      - rgmii-txid
91      - rtbi
92      - smii
93      - xgmii
94      - trgmii
95      - 1000base-x
96      - 2500base-x
97      - 5gbase-r
98      - rxaui
99      - xaui
100
101      # 10GBASE-KR, XFI, SFI
102      - 10gbase-kr
103      - usxgmii
104      - 10gbase-r
105      - 25gbase-r
106
107  phy-mode:
108    $ref: "#/properties/phy-connection-type"
109
110  pcs-handle:
111    $ref: /schemas/types.yaml#/definitions/phandle-array
112    items:
113      maxItems: 1
114    description:
115      Specifies a reference to a node representing a PCS PHY device on a MDIO
116      bus to link with an external PHY (phy-handle) if exists.
117
118  pcs-handle-names:
119    description:
120      The name of each PCS in pcs-handle.
121
122  phy-handle:
123    $ref: /schemas/types.yaml#/definitions/phandle
124    description:
125      Specifies a reference to a node representing a PHY device.
126
127  phy:
128    $ref: "#/properties/phy-handle"
129    deprecated: true
130
131  phy-device:
132    $ref: "#/properties/phy-handle"
133    deprecated: true
134
135  rx-fifo-depth:
136    $ref: /schemas/types.yaml#/definitions/uint32
137    description:
138      The size of the controller\'s receive fifo in bytes. This is used
139      for components that can have configurable receive fifo sizes,
140      and is useful for determining certain configuration settings
141      such as flow control thresholds.
142
143  sfp:
144    $ref: /schemas/types.yaml#/definitions/phandle
145    description:
146      Specifies a reference to a node representing a SFP cage.
147
148  tx-fifo-depth:
149    $ref: /schemas/types.yaml#/definitions/uint32
150    description:
151      The size of the controller\'s transmit fifo in bytes. This
152      is used for components that can have configurable fifo sizes.
153
154  managed:
155    description:
156      Specifies the PHY management type. If auto is set and fixed-link
157      is not specified, it uses MDIO for management.
158    $ref: /schemas/types.yaml#/definitions/string
159    default: auto
160    enum:
161      - auto
162      - in-band-status
163
164  fixed-link:
165    oneOf:
166      - $ref: /schemas/types.yaml#/definitions/uint32-array
167        deprecated: true
168        items:
169          - minimum: 0
170            maximum: 31
171            description:
172              Emulated PHY ID, choose any but unique to the all
173              specified fixed-links
174
175          - enum: [0, 1]
176            description:
177              Duplex configuration. 0 for half duplex or 1 for
178              full duplex
179
180          - enum: [10, 100, 1000, 2500, 10000]
181            description:
182              Link speed in Mbits/sec.
183
184          - enum: [0, 1]
185            description:
186              Pause configuration. 0 for no pause, 1 for pause
187
188          - enum: [0, 1]
189            description:
190              Asymmetric pause configuration. 0 for no asymmetric
191              pause, 1 for asymmetric pause
192      - type: object
193        additionalProperties: false
194        properties:
195          speed:
196            description:
197              Link speed.
198            $ref: /schemas/types.yaml#/definitions/uint32
199            enum: [10, 100, 1000, 2500, 10000]
200
201          full-duplex:
202            $ref: /schemas/types.yaml#/definitions/flag
203            description:
204              Indicates that full-duplex is used. When absent, half
205              duplex is assumed.
206
207          pause:
208            $ref: /schemas/types.yaml#definitions/flag
209            description:
210              Indicates that pause should be enabled.
211
212          asym-pause:
213            $ref: /schemas/types.yaml#/definitions/flag
214            description:
215              Indicates that asym_pause should be enabled.
216
217          link-gpios:
218            maxItems: 1
219            description:
220              GPIO to determine if the link is up
221
222        required:
223          - speed
224
225dependencies:
226  pcs-handle-names: [pcs-handle]
227
228allOf:
229  - if:
230      properties:
231        phy-mode:
232          contains:
233            enum:
234              - rgmii
235              - rgmii-rxid
236              - rgmii-txid
237              - rgmii-id
238    then:
239      properties:
240        rx-internal-delay-ps:
241          description:
242            RGMII Receive Clock Delay defined in pico seconds.This is used for
243            controllers that have configurable RX internal delays. If this
244            property is present then the MAC applies the RX delay.
245        tx-internal-delay-ps:
246          description:
247            RGMII Transmit Clock Delay defined in pico seconds.This is used for
248            controllers that have configurable TX internal delays. If this
249            property is present then the MAC applies the TX delay.
250
251additionalProperties: true
252
253...
254