Here are the thinks I analysed already:
- possibly we have an issue with AM3352 ROM code and TAAC
- TAAC value is much higher for the automotive eMMC 0x4 –> 0x7 , this is 1000 times slower
- Mircon mentioned this is worst case but we do not know if the TI ROM driver cares about TAAC register
- NFS booting and linux driver handling of eMMC is with out any issues
- forcing user area as boot partition in eCSD does not help
- programming and reading back of 2GB image has same CRC
best regards,
Boris