[U-Boot] AT91SAM9260 Ethernet Device

[U-Boot] AT91SAM9260 Ethernet Device

[J.Hwan.Kim]

Hi, everyone

I'm trying to connect ethernet with AT91SAM9260.
My board uses DM9161A as a ethernet transceiver.

The u-boot ethernet initialization routine runs auto-negotiation,
it works fine.  Ethernet controller of AT91SAM9260
(MACB0) receives Auto negotiation completion bit
from DM9161A status register.

But status registor of DM9161A returns "Invalid link status",
so u-boot prints "eth0 link down".

When does the "invalid link status" situation happen?
How can I fix this problem?
I connected the ethernet with PC by cross ethernet cable.

Thanks in advance.

Best Regards,
J.Hwan Kim

[U-Boot] AT91SAM9260 Ethernet Device

[Jens Scharsig]

Dear J.Hwan.Kim,
> Hi, everyone
> 
> I'm trying to connect ethernet with AT91SAM9260.
> My board uses DM9161A as a ethernet transceiver.

> 
> The u-boot ethernet initialization routine runs auto-negotiation,
> it works fine.  Ethernet controller of AT91SAM9260
> (MACB0) receives Auto negotiation completion bit
> from DM9161A status register.

Please check phy interface mode: RMII or MII

> 
> But status registor of DM9161A returns "Invalid link status",
> so u-boot prints "eth0 link down".
> 
> When does the "invalid link status" situation happen?
> How can I fix this problem?
> I connected the ethernet with PC by cross ethernet cable.
> 

Which version of U-Boot do you use?
Have You test the connection with an ethernet siwtch?

Best Regards,
J. Scharsig