powerpc/t104xrdb: Update DDR initialization related settings
authorPriyanka Jain <Priyanka.Jain@freescale.com>
Wed, 26 Feb 2014 04:08:37 +0000 (09:38 +0530)
committerYork Sun <yorksun@freescale.com>
Fri, 7 Mar 2014 22:53:48 +0000 (14:53 -0800)
commit96ac18c9ccc77c7f57dff5651b34a3cc914c8abd
tree325af069503d735a07491ded13d2f37608ca4ebc
parent337b0c52b3296f371d04aef71a833e09110e0e6b
powerpc/t104xrdb: Update DDR initialization related settings

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: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
board/freescale/t104xrdb/ddr.c
board/freescale/t104xrdb/ddr.h
include/configs/T1040RDB.h
include/configs/T1042RDB_PI.h