[U-Boot] u-boot-atmel and u-boot-at91

Hi: Could you tell me the relationship between u-boot-atmel with u-boot-at91? I find a good feature usb gadget on the fork u-boot-at91, and no maintainers long time ago. Do the maintainers of atmel have plan to merge/port this feature to u-boot-atmel?

Best Regards,