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→MMC Booting
When MMC boot option is selected, bootrom looks for a valid boot sector on MMC1.
To properly program a SD/MMC card so it's recognized by bootrom, please follow [http://processors.wiki.ti.com/index.php/DM814x_AM387x_PSP_U-Boot#Setting_Up_Boot_Environment_on_SD_Card thisguide] guide from TI wiki.
In brief:
* user should have the first (if more that one is available) partition of MMC must be formatted as FAT12/16 or FAT32 (the partition should must also be marked as primary and active)* inside this partition there should must be a file named ''MLO'' which is the U-Boot 1st stage* with U-Boot 1st stage default option, there should also be a file name named ''u-boot'' (which is the second stage) and the ''uImage'' binary file (which is the kernel image)* the second partition of the MMC must be formatted as ext3 and must contain a plain root file system
Once the system boots from the SD and U-Boot is running, the following commands can be launched from the U-Boot shell to start the system, reading the kernel from the card boot partition and mounting the root file system stored in the second partition (/dev/mmcblk0p2):
