TE2440 u盘挂接失败问题

我在TE2440开发板上挂接u盘 出现如下信息：
# usb 1-1: new low speed USB device using s3c2410-ohci and address 2

usb 1-1: device descriptor read/64, error -110

usb 1-1: device descriptor read/64, error -110

usb 1-1: new low speed USB device using s3c2410-ohci and address 3

usb 1-1: device descriptor read/64, error -110

usb 1-1: device descriptor read/64, error -110

usb 1-1: new low speed USB device using s3c2410-ohci and address 4

usb 1-1: device not accepting address 4, error -110

usb 1-1: new low speed USB device using s3c2410-ohci and address 5

usb 1-1: device not accepting address 5, error -110
找了好久的资料，也没法解决，请教大侠帮助解决啊？？

不是天嵌科技的开发板，请找对应的厂家吧。