[PATCH 2/3] ARM: dts: imx7: add support for kamstrup flex concentrator

[Fabio Estevam]

Hi Bruno,

On Tue, Jul 14, 2020 at 7:03 AM Bruno Thomsen <bruno.thomsen at gmail.com> wrote:

> I have not yet been successful in converting the deprecated properties
> to generic phy properties, so hoping I could get a hit.
>
> Kernel error messages:
> mdio_bus 30be0000.ethernet-1: MDIO device at address 1 is missing.

Please double-check whether 1 is the correct address for the KSZ8051
Ethernet PHY as per your schematics.

Are there external pull-up/pull-down resistors for strapping the
various configuration pins for the PHY? Or are the pull-up/pull-down
provided by the i.MX7D pins?

If there are no external pull-ups, please make sure to configure the
pinctrl_enet1 accordingly, so that the Ethernet PHY address can be
properly configured and then mdio_bus driver can find it at the
correct address.

Please check in arch/arm/boot/dts/imx6qdl-sr-som.dtsi for an example
on how to configure the Ethernet PHY pin strapping via iMX IOMUX.