From DDR3 documentation, I understand that there are 4 types of calibrations that can be done. Namely,
- ZQ calibration
- Read calibration
- Write Leveling
- Write calibration
Are these supported in the uboot code for iMX6 ? I haven't found any mention of them for the iMX6Q sabresd reference board.
We are designing a new board based on the iMX6D processor using two DDR3 chips from Nanya on a 32-bit bus totally 1GB of RAM. We have used daisy chain topology for our new board and we feel that we may need these calibrations during bringup. Do you have any idea how we can do these?