powerpc/t1040qds: Update DDR initialization related settings
Update following DDR related settings for T1040QDS -Correct number of chip selects to two as t1040qds supports two Chip selects. -Update board_specific_parameters udimm structure with settings derived via calibration. -Reduced I2C speed to 50KHz as DDR-SPD does not get reliably read at 400KHz. Verified the updated settings to be working fine with dual-ranked Micron, MT18KSF51272AZ-1G6 DIMM at data rate 833MT/s, 1333MT/s and 1600MT/s. Signed-off-by: NPoonam Aggrwal <poonam.aggrwal@freescale.com> Signed-off-by: NPriyanka Jain <Priyanka.Jain@freescale.com> Reviewed-by: NYork Sun <yorksun@freescale.com>
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