[PATCH 3/4] ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 reset

Andrew Lunn andrew at lunn.ch
Thu Mar 11 14:17:34 GMT 2021


On Thu, Mar 11, 2021 at 11:33:04AM +0000, Joakim Zhang wrote:
> 
> Hi Fabio, Shawn, Andrew,
> 

> I found the root cause is the schematic diagram defect, both
> ENET1_nRST and ENET2_nRST are connect to ENET_nRST, which means PHY0
> and PHY1 can't be hardware reset independently.

You can move the reset-gpio up into the MDIO node. It then becomes an
MDIO bus reset, resetting all PHYs on the bus before they are probed.

     Andrew



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