[U-Boot-Users] MPC8560 Using TSEC0 for Ethernet but no MII configuration

[Andy Fleming]

What was the resolution, if you don't mind my asking?

On 5/17/06, Peter Wright <peter.wright at utstar.com> wrote:
> Never mind about this message.  I sent it last week and have been able to
> resolve the problem since then.  No idea why it waited 5 days to send it.
>
> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net
> [mailto:u-boot-users-admin at lists.sourceforge.net] On Behalf Of Peter Wright
> Sent: Friday, May 12, 2006 11:51 AM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] MPC8560 Using TSEC0 for Ethernet but no MII
> configuration
>
> I have a problem right now.  On the board I have to deal with there is a
> Marvell 88E6063 switch that is hooked up to my 8560 CPU.  There's a second
> cpu on the board that is also hooked up to the switch.  (the switch has two
> MII interfaces).  The problem I have is that the other CPU is hooked up to
> the switch's MDIO and MDC lines.  So I have no control over the MII
> interface or interface.
>
> I have undefined CONFIG_MII and CFG_CMD_MII in my configuration file (board
> specific .h).  But U-BOOT still wants to do MII configuration and fails
> because the MDIO and MDC lines aren't connected.  The 88E6063 is configured
> by the other processor and should have all ports working properly.  Is there
> a way to set up U-BOOT to be dumb with the TSEC0 port?  Tell the processor
> that it has an MII interface (4 bits tx and 4 bits rx) and just run with it?
>
> To give a background on the 88E6063 chip.  It's a 7 port switch.  5 Ports
> are PHY and 2 ports are MII.  But it only has one complete MII interface.
> It only has one set of MDIO and MDC connections.  The datasheet for the
> switch says that on reset it should fire up and run with no configuration
> needed.  It bases its configuration on the pin inputs.  In my case the
> connection is set up with MII PHY on the port the CPU I'm dealing with is
> connected.
>
>
>
>
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