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Date: Thu, 27 Jun 2024 09:55:47 -0600
From: Rob Herring <robh@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: krzk@...nel.org, conor+dt@...nel.org, davem@...emloft.net,
devicetree@...r.kernel.org, edumazet@...gle.com,
imx@...ts.linux.dev, krzk+dt@...nel.org, kuba@...nel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
pabeni@...hat.com
Subject: Re: [PATCH v2 1/1] dt-bindings: net: convert enetc to yaml
On Wed, Jun 26, 2024 at 12:23:07PM -0400, Frank Li wrote:
> Convert enetc device binding file to yaml. Split to 3 yaml files,
> 'fsl,enetc.yaml', 'fsl,enetc-mdio.yaml', 'fsl,enetc-ierb.yaml'.
>
> Additional Changes:
> - Add pci<vendor id>,<production id> in compatible string.
> - Ref to common ethernet-controller.yaml and mdio.yaml.
> - Remove fixed-link part.
>
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
> Change from v1 to v2
> - renamee file as fsl,enetc-mdio.yaml, fsl,enetc-ierb.yaml, fsl,enetc.yaml
> - example include pcie node
> ---
> .../bindings/net/fsl,enetc-ierb.yaml | 35 ++++++
> .../bindings/net/fsl,enetc-mdio.yaml | 53 ++++++++
> .../devicetree/bindings/net/fsl,enetc.yaml | 50 ++++++++
> .../devicetree/bindings/net/fsl-enetc.txt | 119 ------------------
> 4 files changed, 138 insertions(+), 119 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml
> create mode 100644 Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
> create mode 100644 Documentation/devicetree/bindings/net/fsl,enetc.yaml
> delete mode 100644 Documentation/devicetree/bindings/net/fsl-enetc.txt
>
> diff --git a/Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml b/Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml
> new file mode 100644
> index 0000000000000..ce88d7ce07a5e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/fsl,enetc-ierb.yaml
> @@ -0,0 +1,35 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/fsl,enetc-ierb.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Integrated Endpoint Register Block
> +
> +description:
> + The fsl_enetc driver can probe on the Integrated Endpoint Register
> + Block, which preconfigures the FIFO limits for the ENETC ports.
Wrap at 80 chars
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +properties:
> + compatible:
> + enum:
> + - fsl,ls1028a-enetc-ierb
> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + ierb@...800000 {
unit-address doesn't match
> + compatible = "fsl,ls1028a-enetc-ierb";
> + reg = <0xf0800000 0x10000>;
> + };
> diff --git a/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml b/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
> new file mode 100644
> index 0000000000000..60740ea56cb08
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/fsl,enetc-mdio.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/fsl,enetc-mdio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ENETC the central MDIO PCIe endpoint device
> +
> +description:
> + In this case, the mdio node should be defined as another PCIe
> + endpoint node, at the same level with the ENETC port nodes
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>.
stray '.' ^
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - pci1957,ee01
> + - const: fsl,enetc-mdio
> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +allOf:
> + - $ref: mdio.yaml
As a PCI device, also needs pci-device.yaml.
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + pcie@...000000 {
> + compatible = "pci-host-ecam-generic";
> + reg = <0x01 0xf0000000 0x0 0x100000>;
Drop compatible and reg. Just need the minimum to define a PCI bus node.
> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + mdio@0,3 {
> + compatible = "pci1957,ee01", "fsl,enetc-mdio";
> + reg = <0x000300 0 0 0 0>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethernet-phy@2 {
> + reg = <0x2>;
> + };
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/net/fsl,enetc.yaml b/Documentation/devicetree/bindings/net/fsl,enetc.yaml
> new file mode 100644
> index 0000000000000..843c27e357f2d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/fsl,enetc.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/fsl,enetc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ENETC ethernet
> +
> +description:
> + Depending on board design and ENETC port type (internal or
> + external) there are two supported link modes specified by
> + below device tree bindings.
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - pci1957,e100
> + - const: fsl,enetc
> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +allOf:
> + - $ref: ethernet-controller.yaml
As a PCI device, also needs pci-device.yaml.
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + pcie@...000000 {
> + compatible = "pci-host-ecam-generic";
> + reg = <0x01 0xf0000000 0x0 0x100000>;
> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + ethernet@0,0 {
> + compatible = "pci1957,e100", "fsl,enetc";
> + reg = <0x000000 0 0 0 0>;
> + phy-handle = <&sgmii_phy0>;
> + phy-connection-type = "sgmii";
> + };
> + };
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