linux-kernel - Re: [PATCH 18/43] dt-bindings: net: Add DT bindings ep93xx eth

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Message-ID: <20230424161146.GE2701399-robh@kernel.org>
Date:   Mon, 24 Apr 2023 11:11:46 -0500
From:   Rob Herring <robh@...nel.org>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Arnd Bergmann <arnd@...nel.org>, Linus Walleij <linusw@...nel.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Hartley Sweeten <hsweeten@...ionengravers.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 18/43] dt-bindings: net: Add DT bindings ep93xx eth

On Mon, Apr 24, 2023 at 03:34:34PM +0300, Nikita Shubin wrote:
> Add YAML bindings for ep93xx SoC.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
> ---
>  .../bindings/net/cirrus,ep93xx_eth.yaml       | 51 +++++++++++++++++++
>  1 file changed, 51 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/cirrus,ep93xx_eth.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/cirrus,ep93xx_eth.yaml b/Documentation/devicetree/bindings/net/cirrus,ep93xx_eth.yaml
> new file mode 100644
> index 000000000000..7e73cf0ddde9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/cirrus,ep93xx_eth.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/cirrus,ep93xx_eth.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: The ethernet hardware included in EP93xx CPUs module Device Tree Bindings
> +
> +maintainers:
> +  - Hartley Sweeten <hsweeten@...ionengravers.com>

Should be referencing ethernet-controller.yaml.

> +
> +properties:
> +  compatible:
> +    const: cirrus,ep9301-eth
> +
> +  reg:
> +    items:
> +      - description: The physical base address and size of IO range
> +
> +  interrupts:
> +    items:
> +      - description: Combined signal for various interrupt events
> +
> +  copy_addr:
> +    type: boolean
> +    description:
> +      Flag indicating that the MAC address should be copied
> +      from the IndAd registers (as programmed by the bootloader)

The bootloader is supposed to fill in local-mac-address if it sets the 
MAC address.

> +
> +  phy_id:
> +    description: MII phy_id to use

type?

There's standard properties for dealing with phy connections. Surely 
they work for this.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    eth0: eth@...10000 {

ethernet@...

> +        compatible = "cirrus,ep9301-eth";
> +        reg = <0x80010000 0x10000>;
> +        interrupt-parent = <&vic1>;
> +        interrupts = <7>;
> +        copy_addr;
> +        phy_id = < 1 >;
> +    };
> +
> +...
> -- 
> 2.39.2
>