We have a board using the AM3703. We are currently testing these boards using an SD card with a single FAT32 partition that contains MLO, u-boot, uImage, and a ramdisk image.
Boards that we had made last year will boot from the SD card even if the single partition is not marked as active (boot flag not set).
Boards produced this year will only boot if the single partition is marked as active.
In looking at the TRF, it looks like the partition should be marked as active even if only a single partition exists. Is this something that has changed in the boot rom?