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