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
7 title: Ethernet Controller Generic Binding
8
9 maintainers:
10 - David S. Miller <davem@davemloft.net>
11
12 properties:
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 - tbi
71 - rev-mii
72 - rmii
73 - rev-rmii
74 - moca
75
76 # RX and TX delays are added by the MAC when required
77 - rgmii
78
79 # RGMII with internal RX and TX delays provided by the PHY,
80 # the MAC should not add the RX or TX delays in this case
81 - rgmii-id
82
83 # RGMII with internal RX delay provided by the PHY, the MAC
84 # should not add an RX delay in this case
85 - rgmii-rxid
86
87 # RGMII with internal TX delay provided by the PHY, the MAC
88 # should not add an TX delay in this case
89 - rgmii-txid
90 - rtbi
91 - smii
92 - xgmii
93 - trgmii
94 - 1000base-x
95 - 2500base-x
96 - 5gbase-r
97 - rxaui
98 - xaui
99
100 # 10GBASE-KR, XFI, SFI
101 - 10gbase-kr
102 - usxgmii
103 - 10gbase-r
104 - 25gbase-r
105
106 phy-mode:
107 $ref: "#/properties/phy-connection-type"
108
109 pcs-handle:
110 $ref: /schemas/types.yaml#/definitions/phandle
111 description:
112 Specifies a reference to a node representing a PCS PHY device on a MDIO
113 bus to link with an external PHY (phy-handle) if exists.
114
115 phy-handle:
116 $ref: /schemas/types.yaml#/definitions/phandle
117 description:
118 Specifies a reference to a node representing a PHY device.
119
120 phy:
121 $ref: "#/properties/phy-handle"
122 deprecated: true
123
124 phy-device:
125 $ref: "#/properties/phy-handle"
126 deprecated: true
127
128 rx-fifo-depth:
129 $ref: /schemas/types.yaml#/definitions/uint32
130 description:
131 The size of the controller\'s receive fifo in bytes. This is used
132 for components that can have configurable receive fifo sizes,
133 and is useful for determining certain configuration settings
134 such as flow control thresholds.
135
136 sfp:
137 $ref: /schemas/types.yaml#/definitions/phandle
138 description:
139 Specifies a reference to a node representing a SFP cage.
140
141 tx-fifo-depth:
142 $ref: /schemas/types.yaml#/definitions/uint32
143 description:
144 The size of the controller\'s transmit fifo in bytes. This
145 is used for components that can have configurable fifo sizes.
146
147 managed:
148 description:
149 Specifies the PHY management type. If auto is set and fixed-link
150 is not specified, it uses MDIO for management.
151 $ref: /schemas/types.yaml#/definitions/string
152 default: auto
153 enum:
154 - auto
155 - in-band-status
156
157 fixed-link:
158 oneOf:
159 - $ref: /schemas/types.yaml#/definitions/uint32-array
160 deprecated: true
161 items:
162 - minimum: 0
163 maximum: 31
164 description:
165 Emulated PHY ID, choose any but unique to the all
166 specified fixed-links
167
168 - enum: [0, 1]
169 description:
170 Duplex configuration. 0 for half duplex or 1 for
171 full duplex
172
173 - enum: [10, 100, 1000, 2500, 10000]
174 description:
175 Link speed in Mbits/sec.
176
177 - enum: [0, 1]
178 description:
179 Pause configuration. 0 for no pause, 1 for pause
180
181 - enum: [0, 1]
182 description:
183 Asymmetric pause configuration. 0 for no asymmetric
184 pause, 1 for asymmetric pause
185 - type: object
186 additionalProperties: false
187 properties:
188 speed:
189 description:
190 Link speed.
191 $ref: /schemas/types.yaml#/definitions/uint32
192 enum: [10, 100, 1000, 2500, 10000]
193
194 full-duplex:
195 $ref: /schemas/types.yaml#/definitions/flag
196 description:
197 Indicates that full-duplex is used. When absent, half
198 duplex is assumed.
199
200 pause:
201 $ref: /schemas/types.yaml#definitions/flag
202 description:
203 Indicates that pause should be enabled.
204
205 asym-pause:
206 $ref: /schemas/types.yaml#/definitions/flag
207 description:
208 Indicates that asym_pause should be enabled.
209
210 link-gpios:
211 maxItems: 1
212 description:
213 GPIO to determine if the link is up
214
215 required:
216 - speed
217
218 allOf:
219 - if:
220 properties:
221 phy-mode:
222 contains:
223 enum:
224 - rgmii
225 - rgmii-rxid
226 - rgmii-txid
227 - rgmii-id
228 then:
229 properties:
230 rx-internal-delay-ps:
231 description:
232 RGMII Receive Clock Delay defined in pico seconds.This is used for
233 controllers that have configurable RX internal delays. If this
234 property is present then the MAC applies the RX delay.
235 tx-internal-delay-ps:
236 description:
237 RGMII Transmit Clock Delay defined in pico seconds.This is used for
238 controllers that have configurable TX internal delays. If this
239 property is present then the MAC applies the TX delay.
240
241 additionalProperties: true
242
243 ...
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