The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/phy/xlnx,zynqmp-psgtr.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/phy/xlnx,zynqmp-psgtr.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Xilinx ZynqMP Gigabit Transceiver PHY Device Tree Bindings
    8 
    9 maintainers:
   10   - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   11 
   12 description: |
   13   This binding describes the Xilinx ZynqMP Gigabit Transceiver (GTR) PHY. The
   14   GTR provides four lanes and is used by USB, SATA, PCIE, Display port and
   15   Ethernet SGMII controllers.
   16 
   17 properties:
   18   "#phy-cells":
   19     const: 4
   20     description: |
   21       The cells contain the following arguments.
   22 
   23       - description: The GTR lane
   24         minimum: 0
   25         maximum: 3
   26       - description: The PHY type
   27         enum:
   28           - PHY_TYPE_DP
   29           - PHY_TYPE_PCIE
   30           - PHY_TYPE_SATA
   31           - PHY_TYPE_SGMII
   32           - PHY_TYPE_USB3
   33       - description: The PHY instance
   34         minimum: 0
   35         maximum: 1 # for DP, SATA or USB
   36         maximum: 3 # for PCIE or SGMII
   37       - description: The reference clock number
   38         minimum: 0
   39         maximum: 3
   40 
   41   compatible:
   42     enum:
   43       - xlnx,zynqmp-psgtr-v1.1
   44       - xlnx,zynqmp-psgtr
   45 
   46   clocks:
   47     minItems: 1
   48     maxItems: 4
   49     description: |
   50       Clock for each PS_MGTREFCLK[0-3] reference clock input. Unconnected
   51       inputs shall not have an entry.
   52 
   53   clock-names:
   54     minItems: 1
   55     maxItems: 4
   56     items:
   57       pattern: "^ref[0-3]$"
   58 
   59   reg:
   60     items:
   61       - description: SERDES registers block
   62       - description: SIOU registers block
   63 
   64   reg-names:
   65     items:
   66       - const: serdes
   67       - const: siou
   68 
   69   xlnx,tx-termination-fix:
   70     description: |
   71       Include this for fixing functional issue with the TX termination
   72       resistance in GT, which can be out of spec for the XCZU9EG silicon
   73       version.
   74     type: boolean
   75 
   76 required:
   77   - "#phy-cells"
   78   - compatible
   79   - reg
   80   - reg-names
   81 
   82 if:
   83   properties:
   84     compatible:
   85       const: xlnx,zynqmp-psgtr-v1.1
   86 
   87 then:
   88   properties:
   89     xlnx,tx-termination-fix: false
   90 
   91 additionalProperties: false
   92 
   93 examples:
   94   - |
   95     phy: phy@fd400000 {
   96         compatible = "xlnx,zynqmp-psgtr-v1.1";
   97         reg = <0xfd400000 0x40000>,
   98               <0xfd3d0000 0x1000>;
   99         reg-names = "serdes", "siou";
  100         clocks = <&refclks 3>, <&refclks 2>, <&refclks 0>;
  101         clock-names = "ref1", "ref2", "ref3";
  102         #phy-cells = <4>;
  103     };
  104 
  105 ...

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