This is the source tree of U-Boot, a popular boot loader for embedded devices. U-Boot was developed by DENX Software Engineering (www.denx.de).
This particular version of U-Boot is maintained by Emcraft Systems and supports several Cortex-M3 and Cortex-M4 based MCUs.
A complete list of Cortex-M MCUs and boards supported by this version of U-Boot is available at http://www.emcraft.com.
If you want to contribute code to this source tree, please email your patches to firstname.lastname@example.org.