Re: [PATCH v2 2/2] ARM: dts: imx7: add support for kamstrup flex concentrator

[Fabio Estevam]

Hi Bruno,

On Thu, Jul 16, 2020 at 2:26 PM Bruno Thomsen <bruno.thomsen@xxxxxxxxx> wrote:

> Limitations: Ethernet PHY type auto detection does not
> work when using reset-{assert-us,deassert-us,gpios}
> properties so it's using a fixed PHY type ID for now. Auto
> detection worked when using the deprecated FEC properties
> phy-reset-{gpios,duration,post-delay}.

I think we need to understand this better. Why does it fail?

I gave a test on an imx6q-sabresd and the Ethernet PHY (AR8031) could
be properly detected using reset-{assert-us,deassert-us,gpios}
properties inside the mdio node.

Is this a Micrel KSZ8081 specific issue?

Please report this issue to the Ethernet PHY folks.