intel,ixp4xx-ethernet.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 # Copyright 2018 Linaro Ltd.
    3 %YAML 1.2
    4 ---
    5 $id: "http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml#"
    6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    7 
    8 title: Intel IXP4xx ethernet
    9 
   10 allOf:
   11   - $ref: "ethernet-controller.yaml#"
   12 
   13 maintainers:
   14   - Linus Walleij <linus.walleij@linaro.org>
   15 
   16 description: |
   17   The Intel IXP4xx ethernet makes use of the IXP4xx NPE (Network
   18   Processing Engine) and the IXP4xx Queue Manager to process
   19   the ethernet frames. It can optionally contain an MDIO bus to
   20   talk to PHYs.
   21 
   22 properties:
   23   compatible:
   24     const: intel,ixp4xx-ethernet
   25 
   26   reg:
   27     maxItems: 1
   28     description: Ethernet MMIO address range
   29 
   30   queue-rx:
   31     $ref: '/schemas/types.yaml#/definitions/phandle-array'
   32     items:
   33       - items:
   34           - description: phandle to the RX queue node
   35           - description: RX queue instance to use
   36     description: phandle to the RX queue on the NPE
   37 
   38   queue-txready:
   39     $ref: '/schemas/types.yaml#/definitions/phandle-array'
   40     items:
   41       - items:
   42           - description: phandle to the TX READY queue node
   43           - description: TX READY queue instance to use
   44     description: phandle to the TX READY queue on the NPE
   45 
   46   phy-mode: true
   47 
   48   phy-handle: true
   49 
   50   intel,npe-handle:
   51     $ref: '/schemas/types.yaml#/definitions/phandle-array'
   52     items:
   53       - items:
   54           - description: phandle to the NPE this ethernet instance is using
   55           - description: the NPE instance to use
   56     description: phandle to the NPE this ethernet instance is using
   57       and the instance to use in the second cell
   58 
   59   mdio:
   60     $ref: mdio.yaml#
   61     unevaluatedProperties: false
   62     description: optional node for embedded MDIO controller
   63 
   64 required:
   65   - compatible
   66   - reg
   67   - queue-rx
   68   - queue-txready
   69   - intel,npe-handle
   70 
   71 additionalProperties: false
   72 
   73 examples:
   74   - |
   75     npe: npe@c8006000 {
   76       compatible = "intel,ixp4xx-network-processing-engine";
   77       reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
   78     };
   79 
   80     ethernet@c8009000 {
   81       compatible = "intel,ixp4xx-ethernet";
   82       reg = <0xc8009000 0x1000>;
   83       queue-rx = <&qmgr 4>;
   84       queue-txready = <&qmgr 21>;
   85       intel,npe-handle = <&npe 1>;
   86       phy-mode = "rgmii";
   87       phy-handle = <&phy1>;
   88     };
   89 
   90     ethernet@c800c000 {
   91       compatible = "intel,ixp4xx-ethernet";
   92       reg = <0xc800c000 0x1000>;
   93       queue-rx = <&qmgr 3>;
   94       queue-txready = <&qmgr 20>;
   95       intel,npe-handle = <&npe 2>;
   96       phy-mode = "rgmii";
   97       phy-handle = <&phy2>;
   98 
   99       mdio {
  100         #address-cells = <1>;
  101         #size-cells = <0>;
  102         phy1: ethernet-phy@1 {
  103           reg = <1>;
  104         };
  105         phy2: ethernet-phy@2 {
  106           reg = <2>;
  107         };
  108       };
  109     };

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