Re: [PATCH v7 4/6] dt-bindings: net: Add support StarFive dwmac

[Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>]

On 16/03/2023 05:37, Samin Guo wrote:
> From: Yanhong Wang <yanhong.wang@starfivetech.com>
> 
> Add documentation to describe StarFive dwmac driver(GMAC).
> 
Thank you for your patch. There is something to discuss/improve.

> Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
> Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
> Tested-by: Tommaso Merciai <tomm.merciai@gmail.com>
> ---
>  .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
>  .../bindings/net/starfive,jh7110-dwmac.yaml   | 130 ++++++++++++++++++
>  MAINTAINERS                                   |   6 +
>  3 files changed, 137 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> index e4519cf722ab..245f7d713261 100644
> --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> @@ -91,6 +91,7 @@ properties:
>          - snps,dwmac-5.20
>          - snps,dwxgmac
>          - snps,dwxgmac-2.10
> +        - starfive,jh7110-dwmac
>  
>    reg:
>      minItems: 1
> diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> new file mode 100644
> index 000000000000..b59e6bd8201f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> @@ -0,0 +1,130 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2022 StarFive Technology Co., Ltd.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/starfive,jh7110-dwmac.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 DWMAC glue layer
> +
> +maintainers:
> +  - Emil Renner Berthing <kernel@esmil.dk>
> +  - Samin Guo <samin.guo@starfivetech.com>
> +
> +select:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - starfive,jh7110-dwmac
> +  required:
> +    - compatible
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - starfive,jh7110-dwmac
> +      - const: snps,dwmac-5.20
> +

reg:
  maxItems: 1


> +  clocks:
> +    items:
> +      - description: GMAC main clock
> +      - description: GMAC AHB clock
> +      - description: PTP clock
> +      - description: TX clock
> +      - description: GTX clock
> +
> +  clock-names:
> +    items:
> +      - const: stmmaceth
> +      - const: pclk
> +      - const: ptp_ref
> +      - const: tx
> +      - const: gtx
> +

interrupts: ???

> +  resets:
> +    items:
> +      - description: MAC Reset signal.
> +      - description: AHB Reset signal.
> +
> +  reset-names:
> +    items:
> +      - const: stmmaceth
> +      - const: ahb
> +
> +  starfive,tx-use-rgmii-clk:
> +    description:
> +      Tx clock is provided by external rgmii clock.
> +    type: boolean
> +
> +  starfive,syscon:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    items:
> +      - items:
> +          - description: phandle to syscon that configures phy mode
> +          - description: Offset of phy mode selection
> +          - description: Shift of phy mode selection
> +    description:
> +      A phandle to syscon with two arguments that configure phy mode.
> +      The argument one is the offset of phy mode selection, the
> +      argument two is the shift of phy mode selection.
> +
> +allOf:
> +  - $ref: snps,dwmac.yaml#
> +
> +unevaluatedProperties: false
> +
Best regards,
Krzysztof