omapl138配置网口驱动，加载内核后显示 eth0: no PHY found，get_phy_device返回NULL，求指导是啥原因；
敲ifconfig 没有eth0，ifconfig -a 有
root@:/# ifconfig -a
eth0 Link encap:Ethernet HWaddr 8E:ED:1C:2D:CB:EA
inet addr:192.168.11.100 Bcast:192.168.11.255 Mask:255.255.255.0
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:33
root@:/# /sbin/ifconfig eth0 192.168.11.100 netmask 255.255.255.0
[ 287.285000] emac_dev_open:eth0,7,00001002,00000000,0400,phymask:1
[ 287.295000] net eth0: DaVinci EMAC: request_irq() failedifconfig: SIOCSIFFLAGS: Device or resource busy
