Download of u-boot-cm-bf537e-2009R1.1-rc1.tar.bz2 (u-boot-cm-bf537e-2009R1.1-rc1.tar.bz2 ( external link: SF.net): 364,415 bytes) will begin shortly. If not so, click link on the left.
The "U-Boot" Universal Bootloader project provides firmware for many CPU architectures and boards, including ADI's Blackfin processors with full source code under GPL.