• Priyanka Jain's avatar
    powerpc/t104xrdb: Update DDR initialization related settings · 96ac18c9
    Priyanka Jain authored
    Update following DDR related settings for T1040RDB, T1042RDB_PI
    -Correct number of chip selects to two as t1040 supports
     two Chip selects.
    -Update board_specific_parameters udimm structure with settings
     derived via calibration.
    -Update ddr_raw_timing sructure corresponding to DIMM.
    -Set ODT to off. Typically on FSL board, ODT is set to 75 ohm,
     but on T104xRDB, on setting this , DDR instability is observed.
     Board-level debugging is in progress.
    Verified the updated settings to be working fine with dual-ranked
    Micron, MT18KSF51272AZ-1G6 DIMM at data rate 1600MT/s.
    Signed-off-by: default avatarPriyanka Jain <Priyanka.Jain@freescale.com>
    Signed-off-by: default avatarYork Sun <yorksun@freescale.com>
ddr.h 1.93 KB