This document introduces how to configure software to disable the second DDR controller and
only use DDR1 on LX2160A platforms, includes configuring RCW to disable clock of DDR2 by
using DEVDISR register and setting HN-F SAM control registers to disable DDR2 in
CodeWarrior and atf software coding.
1. Configure RCW to Disable clock of DDR2 by using DEVDISR register
2. Configuring HN-F SAM control register to disable DDR2 in CodeWarrior
3. ATF coding to configure HN-F SAM control register to disable the specific DDR controller
