Hi Sri,
I'm wondering if you were able to get your mDDR interface working. I have an almost identical configuration as you with a C6746 clocked with a 24MHz oscillator connected to a Micron MT46H32M16LFBF-5IT:C device. I am almost identical DDR control and timing register values as you but am unable to correctly read and write to the mDDR and hoped you could tell me how you got your setup working.
Thank you,
Mark