Use different RAM on ADSP-21569


We are designing an audio system (firmware and board) that use ADSP-21569.

The firmware is based on SigmaStudioForSHARC-SH-Rel4.5.0 Target demo for 21569.

For hardware design I used ADZS-21569-EZ-KIT as a reference.
This eval board use an 8Gb DDR3 (part number IS43TR16512BL-125KBL.)

Since we don't need such a huge ram, we would like to replace it with a smaller memory like the one that Analog use in the ADZS-SC589-MINI.
The part number is:  MT41K128M16JT-125  and seems to be pin-to-pin compatible.

My question is:
- is this RAM p/n usable with ADSP-21569?
- what modifications are needed in firmware for correctly initialize the DSP and the system with this ram (Reference firmware is in "SigmaStudioForSHARC-SH-Rel4.5.0\Target\Examples\Demo\ADSP-2156x\ADSP-21569" )

I hope that there is a way to configure this RAM because in a few days we will receive first board samples and 2 of 8 boards are assembled with this part number.

Thanks in advance for the support