内核下载问题

yufeilg

intel xscale 270开发板XSBASE270在下载内核镜像总是出现以下错误：

INFO: Trying to initialize the built-in SMSC NIC...
ERROR: LAN91CInit: Network Chip not found at 0xba700300
ERROR: Failed to initialize SMSC LAN91C111 Ethernet controller.
INFO: Trying to locate/initialize PCMCIA NIC in slot 0...
ERROR: Failed to detect and initialize Ethernet controller.
     网线连好的，ip也是设的同一网段，不知是何原因，请高手赐教。