Linux/AM3352: How to Create a small eMMC partition that can work as non volatile memory?

Part Number:AM3352

Tool/software: Linux

Hello Team

I am  using AM3352 ti processor  I want to create a small one Mbyte partition of eMMC that can work as non volatile memory for me. So i can read/write system data anytime.

So please let me know how can we create this partition that keep storing even after power cycles and Re-flashing images in it?

Thank you,  

Harsh Patel