Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml
Extension
.yaml
Size
1276 bytes
Lines
61
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm SerDes/SGMII ethernet PHY controller

maintainers:
  - Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

description:
  The SerDes PHY sits between the MAC and the external PHY and provides
  separate Rx Tx lines.

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - qcom,qcs8300-dwmac-sgmii-phy
          - const: qcom,sa8775p-dwmac-sgmii-phy
      - const: qcom,sa8775p-dwmac-sgmii-phy

  reg:
    items:
      - description: serdes

  clocks:
    maxItems: 1

  clock-names:
    const: sgmi_ref

  phy-supply:
    description:
      Phandle to a regulator that provides power to the PHY.

  "#phy-cells":
    const: 0

required:
  - compatible
  - reg
  - "#phy-cells"
  - clocks
  - clock-names

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
    serdes_phy: phy@8901000 {
        compatible = "qcom,sa8775p-dwmac-sgmii-phy";
        reg = <0x08901000 0xe10>;
        clocks = <&gcc GCC_SGMI_CLKREF_EN>;
        clock-names = "sgmi_ref";
        #phy-cells = <0>;
    };

Annotation

Implementation Notes