Bootloader usb speed

Is it possible to set USB speed to Full-speed 12Mbps in the bootloader?
There seems to be no such parameter in the config block.

@Victor, please let us know which operating system you plan to use? From the terminology it sounds like WinCE? If true, you can set the speed for USB in the WinCE registry:

Don’t forget to save the registry after the modification to make it permanent.
If you don’t want to use WinCE, please give us more details about what you want to do with which operating system. Thanks.

And please notice that bootloader does not use USB on imx6. We have support for USB image download/debugging on Tegra-based modules, but not on imx6, VF and imx7.