mips君正4775，usb generic serial驱动，实现usb模拟串口功能。可用在bootrom或uboot等处-mips jz4775,usb generic serial driver,use usb simulate serial. you can use it in bootrom or uboot.

norflash 39vf040 驱动程序，包括芯片的读，擦除，写入，按字节操作，buffer操作，可直接应用为bootrom-Norflash 39 vf040 driver, including chip read, erase, write and operation in bytes and buffer operations, can be directly used for the bootrom