1.自己没有使用USB网络，怎么多出一个usb网卡呢？如何把USB0网卡去掉？别告诉我直接down了！还有如果不拿掉USB0网口是否占用了我的某个USB接口，对我使用USB接口是否有影响？
root@am335x-evm:~# ifconfig
eth0 Link encap:Ethernet HWaddr A0:F6:FD:4B:88:BE
inet addr:192.168.0.148 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::a2f6:fdff:fe4b:88be%132688/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:432 errors:0 dropped:0 overruns:0 frame:0
TX packets:59 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:27644 (26.9 KiB) TX bytes:9504 (9.2 KiB)
Interrupt:172
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1%132688/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:166 errors:0 dropped:0 overruns:0 frame:0
TX packets:166 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:12688 (12.3 KiB) TX bytes:12688 (12.3 KiB)
usb0 Link encap:Ethernet HWaddr AE:27:BA:C6:37:BE
inet addr:192.168.7.2 Bcast:192.168.7.3 Mask:255.255.255.252
UP 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)
root@am335x-evm:~#
2. 发现ti-processor-sdk-linux-rt-am335x-evm-03系列开机都很慢，如何优化？感觉跟SDK0700不一样。
3. 开机后加载文件系统后不出现TI的文件系统logo和进度条，如何配置让其显示？
