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SubjectRe: [PATCH RESEND net] net: phy: xgmiitorgmii: Support generic PHY status read
> Related to this, I have a query on how the DT node for gmii2rgmii should look.
> One of the users of gmii2rgmii is Cadence macb driver. In Xilinx tree, we use
> this piece of code to register this mdiobus:
> + mdio_np = of_get_child_by_name(np, "mdio");
> + if (mdio_np) {
> + of_node_put(mdio_np);
> + err = of_mdiobus_register(bp->mii_bus, mdio_np);
> + if (err)
> + goto err_out_unregister_bus;
>
> And the DT node looks like this:
> ethernet {
> phy-mode = "gmii";
> phy-handle = <&extphy>;
>
> mdio {
> extphy {
> reg = <x>;
> };
> gmii_to_rgmii{
> compatible = "xlnx,gmii-to-rgmii-1.0";
> phy-handle = <&extphy>;
> reg = <x>;
> };
> };
> };

Hi Harini

You have this setup:

MAC <==> GMII2RGMII <==> RGMII_PHY

So you want the MAC phy-handle to point to the gmii_to_rgmii 'PHY'.

Feel free to submit a patch extending
Documentation/devicetree/bindings/net/xilinx_gmii2rgmii.txt to include
a MAC node, etc.

Andrew

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