405 MII-PHY communication problem (was: Re: PPC405gp enet Soft Reset)

andrew may acmay at acmay.homeip.net
Fri Feb 22 11:56:21 EST 2002


On Tue, Feb 19, 2002 at 01:05:44PM +0100, David Müller (ELSOFT AG) wrote:
> Hi
>
> The problem with the even-numbered PHY register addresses seems to be
> caused by a too weak or totally missing pullup resistor on the MDIO line.

Yep, that seems to solve it here as, well. The phy wants a 1.5k pull up.

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