Mistral omap3evm and beagleboard difference

do anybody run beagleboard xloader and uboot at Mistral omap3evm SD?
MMC boot

Sorry to frustrate you, but can you rephrase that question? Steve Sakoman has been keeping a git tree of OMAP3 bootloaders (u-boot) that might be useful for you to understand the key software differences between the OMAP35x EVM and the Beagle Board. You can also perform a comparison between the code at http://linux.omap.com for the OMAP35x EVM and the code on http://code.google.com/p/beagleboard as snapshot references.