Hello,
i've had the same problem on 3C120 that will be my next working board and for now, don't solve it under uClinux.
For my test i'm working with the 2c35 where eth works out of the box...
What i've seen :
- ping from a PC : Tx and Rx Led OK (+packet count in ifconfig eth0)
- ping from the board (lo or eth0) ping OK, but no leds activity (OK, it use loopback)
- ping a PC from the board : nothing...
i really don't understand, but i'm just "high level software" developper (c/c++,...) not VHDL/verilog...
if you have an idea,
thx, FP