The errata advisory 2.1.72 in the TMs320DM816X Silicon Errata SPRZ329D (Decx. 2012) document indicates that for the DM8168 device revision 2.1 only, that the ROM code does not support booting form eMMC device of size 4GB or more.
Does this ROM code boot problem for Revision 2.1 also apply to booting from a 4GB SDHC card (Class 10)?
Note that we already have successfully booted from a 4GB SDHC card using the device revision 2.0.