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dm3730移植了最新的uboot后usb不能使用的问题

Other Parts Discussed in Thread: DM3730

dm3730移植了uboot2010,系统跑起来了,但是usb插入的时候没反应,是可能哪些原因引起的?

usb相关设置的函数是哪部分,是不是需要重新设置usb时钟频率什么的?