From: Roger Quadros <rog...@ti.com> Date: Wed, 5 Apr 2017 11:33:57 +0300
> Some boards [1] leave the PHYs at an invalid state > during system power-up or reset thus causing unreliability > issues with the PHY like not being detected by the mdio bus > or link not functional. To work around these boards have > a GPIO connected to the PHY's reset pin. > > Implement GPIO reset handling for such cases. > > [1] - am572x-idk, am571x-idk, a437x-idk. > > Signed-off-by: Roger Quadros <rog...@ti.com> > Signed-off-by: Sekhar Nori <nsek...@ti.com> I have not seen a resolution in this discussion. My understanding is that there are several cases (single MDIO bus whose reset does a reset on all that MDIO bus's PHYs, etc.) and it's unclear how to handle all such cases cleanly.
