extern int flash_real_protect(flash_info_t *info, long sector, int prot);
extern void flash_read_user_serial(flash_info_t * info, void * buffer, int offset, int len);
extern void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len);
extern int flash_real_protect(flash_info_t *info, long sector, int prot);
extern void flash_read_user_serial(flash_info_t * info, void * buffer, int offset, int len);
extern void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len);