@Shivam1 Hello,
please use the following:
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX8M-Plus-m865S-DDR-Register-Programmi...
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-8M-Family-DDR-Tool-Release/ta-p/110...
Regards,Yuri.