I am using the am3517 borad ,and the phy of the borad is ksz8001. I am using to the phy of dp83848 instead of the ksz8001. The PHY drivers uses the ksz8001 drivers(devince_emac.c). When i start on the borad(AM3517), the phy link up .But when the embedded board ping the PC computer ,the results is not connected. But the pc can receive the packets of the embedded board by catching packets tools ,and the am3517 can not receive the packets of the pc .Now i am puzzled,and hope you can help me.