Artesyn COMX-P2020 BSP User Guide (July 2014) - Manual (Page 14)

Overview
COMX-P2020 BSP User Guide (6806800L84B) 14
 u-boot.bin: 4M U-boot Binary file for SPI Flash, which is same as u-boot-spi.bin except for
the bigger file size. This file is just for factory to program SPI Flash. Although it can also be
used to upgrade SPI Flash as u-boot-spi.bin, Not using it is suggested because it will cost
much more time than u-boot-spi.bin.
 COMX-P2020.src.tar.gz: The tar ball of the BSP source code, which can be used to compile
all of the above BSP targets.