Bindings/net/ethernet-phy.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/net/ethernet-phy.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Ethernet PHY Common Properties
   8
   9 maintainers:
  10   - Andrew Lunn <andrew@lunn.ch>
  11   - Florian Fainelli <f.fainelli@gmail.com>
  12   - Heiner Kallweit <hkallweit1@gmail.com>
  13
  14 # The dt-schema tools will generate a select statement first by using
  15 # the compatible, and second by using the node name if any. In our
  16 # case, the node name is the one we want to match on, while the
  17 # compatible is optional.
  18 select:
  19   properties:
  20     $nodename:
  21       pattern: "^ethernet-phy(@[a-f0-9]+)?$"
  22
  23   required:
  24     - $nodename
  25
  26 properties:
  27   $nodename:
  28     pattern: "^ethernet-phy(@[a-f0-9]+)?$"
  29
  30   compatible:
  31     oneOf:
  32       - const: ethernet-phy-ieee802.3-c22
  33         description: PHYs that implement IEEE802.3 clause 22
  34       - const: ethernet-phy-ieee802.3-c45
  35         description: PHYs that implement IEEE802.3 clause 45
  36       - pattern: "^ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$"
  37         description:
  38           If the PHY reports an incorrect ID (or none at all) then the
  39           compatible list may contain an entry with the correct PHY ID
  40           in the above form.
  41           The first group of digits is the 16 bit Phy Identifier 1
  42           register, this is the chip vendor OUI bits 3:18. The
  43           second group of digits is the Phy Identifier 2 register,
  44           this is the chip vendor OUI bits 19:24, followed by 10
  45           bits of a vendor specific ID.
  46       - items:
  47           - pattern: "^ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$"
  48           - const: ethernet-phy-ieee802.3-c22
  49       - items:
  50           - pattern: "^ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$"
  51           - const: ethernet-phy-ieee802.3-c45
  52
  53   reg:
  54     minimum: 0
  55     maximum: 31
  56     description:
  57       The ID number for the PHY.
  58
  59   interrupts:
  60     maxItems: 1
  61
  62   max-speed:
  63     enum:
  64       - 10
  65       - 100
  66       - 1000
  67       - 2500
  68       - 5000
  69       - 10000
  70       - 20000
  71       - 25000
  72       - 40000
  73       - 50000
  74       - 56000
  75       - 100000
  76       - 200000
  77     description:
  78       Maximum PHY supported speed in Mbits / seconds.
  79
  80   phy-10base-t1l-2.4vpp:
  81     description: |
  82       tristate, request/disable 2.4 Vpp operating mode. The values are:
  83       0: Disable 2.4 Vpp operating mode.
  84       1: Request 2.4 Vpp operating mode from link partner.
  85       Absence of this property will leave configuration to default values.
  86     $ref: /schemas/types.yaml#/definitions/uint32
  87     enum: [0, 1]
  88
  89   broken-turn-around:
  90     $ref: /schemas/types.yaml#/definitions/flag
  91     description:
  92       If set, indicates the PHY device does not correctly release
  93       the turn around line low at end of the control phase of the
  94       MDIO transaction.
  95
  96   clocks:
  97     maxItems: 1
  98     description:
  99       External clock connected to the PHY. If not specified it is assumed
 100       that the PHY uses a fixed crystal or an internal oscillator.
 101
 102   enet-phy-lane-swap:
 103     $ref: /schemas/types.yaml#/definitions/flag
 104     description:
 105       If set, indicates the PHY will swap the TX/RX lanes to
 106       compensate for the board being designed with the lanes
 107       swapped.
 108
 109   enet-phy-lane-no-swap:
 110     $ref: /schemas/types.yaml#/definitions/flag
 111     description:
 112       If set, indicates that PHY will disable swap of the
 113       TX/RX lanes. This property allows the PHY to work correctly after
 114       e.g. wrong bootstrap configuration caused by issues in PCB
 115       layout design.
 116
 117   eee-broken-100tx:
 118     $ref: /schemas/types.yaml#/definitions/flag
 119     description:
 120       Mark the corresponding energy efficient ethernet mode as
 121       broken and request the ethernet to stop advertising it.
 122
 123   eee-broken-1000t:
 124     $ref: /schemas/types.yaml#/definitions/flag
 125     description:
 126       Mark the corresponding energy efficient ethernet mode as
 127       broken and request the ethernet to stop advertising it.
 128
 129   eee-broken-10gt:
 130     $ref: /schemas/types.yaml#/definitions/flag
 131     description:
 132       Mark the corresponding energy efficient ethernet mode as
 133       broken and request the ethernet to stop advertising it.
 134
 135   eee-broken-1000kx:
 136     $ref: /schemas/types.yaml#/definitions/flag
 137     description:
 138       Mark the corresponding energy efficient ethernet mode as
 139       broken and request the ethernet to stop advertising it.
 140
 141   eee-broken-10gkx4:
 142     $ref: /schemas/types.yaml#/definitions/flag
 143     description:
 144       Mark the corresponding energy efficient ethernet mode as
 145       broken and request the ethernet to stop advertising it.
 146
 147   eee-broken-10gkr:
 148     $ref: /schemas/types.yaml#/definitions/flag
 149     description:
 150       Mark the corresponding energy efficient ethernet mode as
 151       broken and request the ethernet to stop advertising it.
 152
 153   pses:
 154     $ref: /schemas/types.yaml#/definitions/phandle-array
 155     maxItems: 1
 156     description:
 157       Specifies a reference to a node representing a Power Sourcing Equipment.
 158
 159   phy-is-integrated:
 160     $ref: /schemas/types.yaml#/definitions/flag
 161     description:
 162       If set, indicates that the PHY is integrated into the same
 163       physical package as the Ethernet MAC. If needed, muxers
 164       should be configured to ensure the integrated PHY is
 165       used. The absence of this property indicates the muxers
 166       should be configured so that the external PHY is used.
 167
 168   resets:
 169     maxItems: 1
 170
 171   reset-names:
 172     const: phy
 173
 174   reset-gpios:
 175     maxItems: 1
 176     description:
 177       The GPIO phandle and specifier for the PHY reset signal.
 178
 179   reset-assert-us:
 180     description:
 181       Delay after the reset was asserted in microseconds. If this
 182       property is missing the delay will be skipped.
 183
 184   reset-deassert-us:
 185     description:
 186       Delay after the reset was deasserted in microseconds. If
 187       this property is missing the delay will be skipped.
 188
 189   sfp:
 190     $ref: /schemas/types.yaml#/definitions/phandle
 191     description:
 192       Specifies a reference to a node representing a SFP cage.
 193
 194   rx-internal-delay-ps:
 195     description: |
 196       RGMII Receive PHY Clock Delay defined in pico seconds.  This is used for
 197       PHY's that have configurable RX internal delays.  If this property is
 198       present then the PHY applies the RX delay.
 199
 200   tx-internal-delay-ps:
 201     description: |
 202       RGMII Transmit PHY Clock Delay defined in pico seconds.  This is used for
 203       PHY's that have configurable TX internal delays. If this property is
 204       present then the PHY applies the TX delay.
 205
 206   leds:
 207     type: object
 208
 209     properties:
 210       '#address-cells':
 211         const: 1
 212
 213       '#size-cells':
 214         const: 0
 215
 216     patternProperties:
 217       '^led@[a-f0-9]+$':
 218         $ref: /schemas/leds/common.yaml#
 219
 220         properties:
 221           reg:
 222             maxItems: 1
 223             description:
 224               This define the LED index in the PHY or the MAC. It's really
 225               driver dependent and required for ports that define multiple
 226               LED for the same port.
 227
 228         required:
 229           - reg
 230
 231         unevaluatedProperties: false
 232
 233     additionalProperties: false
 234
 235 required:
 236   - reg
 237
 238 additionalProperties: true
 239
 240 examples:
 241   - |
 242     #include <dt-bindings/leds/common.h>
 243
 244     ethernet {
 245         #address-cells = <1>;
 246         #size-cells = <0>;
 247
 248         ethernet-phy@0 {
 249             compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c45";
 250             interrupt-parent = <&PIC>;
 251             interrupts = <35 1>;
 252             reg = <0>;
 253
 254             resets = <&rst 8>;
 255             reset-names = "phy";
 256             reset-gpios = <&gpio1 4 1>;
 257             reset-assert-us = <1000>;
 258             reset-deassert-us = <2000>;
 259
 260             leds {
 261                 #address-cells = <1>;
 262                 #size-cells = <0>;
 263
 264                 led@0 {
 265                     reg = <0>;
 266                     color = <LED_COLOR_ID_WHITE>;
 267                     function = LED_FUNCTION_LAN;
 268                     default-state = "keep";
 269                 };
 270             };
 271         };
 272     };