Those are u-boot binaries built from Hardkernel Github. https://github.com/hardkernel/u-boot Branch: https://github.com/hardkernel/u-boot Branch URL: https://github.com/hardkernel/u-boot/tree/odroidc-v2011.03 When a new build is made, the commit information is the actual sha1 of Hardkernel Github where the U-Boot was build.