U-Boot is a bootloader used mostly for ARM boards. It also initializes the boards (RAM etc).
This U-Boot is built for the BeagleBone Black, which was removed upstream, adjusted from the am335x_evm build with several device trees removed so that it fits within common partitioning schemes.
Validate package descriptions
|sentences in description should be followed by two spaces; possible infraction at 49
Validate file names and availability of patches
|file names of patches should start with the package name
Look for formatting issues in the source
|line 651 is way too long (95 characters)