TDA4VL-Q1: How to adapt customer 2G DDR in SDK9.1, which define shared memory on physical address exceeding 32 bits?

Hi， 

I find that in J721S2 SDK 9.1, there is a change that vision apps define shared mem on physical address 0x9 0000 0000.

But on SDK 8.5, the physical address is 0xB800 0000. 

Customer use 4G DDR, how to adapt this change in higher version SDK?

Thanks

Zekun