[PATCH v9 1/2] dt-bindings: phy: eswin: Document the EIC7700 SoC SATA PHY

[Bo Gan]

Hi Yulin,

Can your team share the dt and driver for &hspcrg? I want to do some
testing with your latest v15 clock patchset on my P550 w/ SATA. W/o
&hspcrg, the SATA phy can't be enabled, hence SATA drive doesn't work.

Bo

On 2/5/26 00:21, Yulin Lu wrote:
> Document the SATA PHY on the EIC7700 SoC platform,
> describing its usage.
> 
> Signed-off-by: Yulin Lu <luyulin at eswincomputing.com>
> ---
>   .../bindings/phy/eswin,eic7700-sata-phy.yaml  | 92 +++++++++++++++++++
>   1 file changed, 92 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml
> 
> diff --git a/Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml b/Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml
> new file mode 100644
> index 000000000000..fc7dbac77acf
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/eswin,eic7700-sata-phy.yaml
> @@ -0,0 +1,92 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/eswin,eic7700-sata-phy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Eswin EIC7700 SoC SATA PHY
> +
> +maintainers:
> +  - Yulin Lu <luyulin at eswincomputing.com>
> +  - Huan He <hehuan1 at eswincomputing.com>
> +
> +properties:
> +  compatible:
> +    const: eswin,eic7700-sata-phy
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: phy
> +
> +  resets:
> +    maxItems: 2
> +
> +  reset-names:
> +    items:
> +      - const: port
> +      - const: phy
> +
> +  eswin,tx-amplitude-tuning:
> +    description: This adjusts the transmitter amplitude signal, and its value
> +      is derived from eye diagram tuning. The three values correspond to Gen1,
> +      Gen2, and Gen3 parameters respectively.
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    items:
> +      - description: Gen1 parameter.
> +        minimum: 0
> +        maximum: 0x7f
> +      - description: Gen2 parameter.
> +        minimum: 0
> +        maximum: 0x7f
> +      - description: Gen3 parameter.
> +        minimum: 0
> +        maximum: 0x7f
> +    default: [0, 0, 0]
> +
> +  eswin,tx-preemph-tuning:
> +    description: This adjusts the transmitter de-emphasis signal, and its value
> +      is derived from eye diagram tuning. The three values correspond to Gen1,
> +      Gen2, and Gen3 parameters respectively.
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    items:
> +      - description: Gen1 parameter.
> +        minimum: 0
> +        maximum: 0x3f
> +      - description: Gen2 parameter.
> +        minimum: 0
> +        maximum: 0x3f
> +      - description: Gen3 parameter.
> +        minimum: 0
> +        maximum: 0x3f
> +    default: [0, 0, 0]
> +
> +  "#phy-cells":
> +    const: 0
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - resets
> +  - reset-names
> +  - "#phy-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    sata-phy at 50440300 {
> +        compatible = "eswin,eic7700-sata-phy";
> +        reg = <0x50440300 0x40>;
> +        clocks = <&hspcrg 17>;
> +        clock-names = "phy";
> +        resets = <&hspcrg 0>, <&hspcrg 1>;
> +        reset-names = "port", "phy";
> +        #phy-cells = <0>;
> +    };