AM6442: U-boot DDR Initialization

Hi TI experts,

I'm using TMDS64GPEVM, however, I replaced the SDRAM MT40A1G16KD-062E by another SDRAM.  They have different ram size and data rate.

1. How will I modify the am64 linux SDK so that uboot ddr initialization will works well?

2. In case, I change the design and use LPDDR4 which has lower power supply voltage( 1.1V). Do I have to change anything in u-boot ddr initialization?

Thank in advance

Thao