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| author | Priyanka Jain <Priyanka.Jain@freescale.com> | 2014-02-26 09:38:37 +0530 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-03-07 14:53:48 -0800 |
| commit | 96ac18c9ccc77c7f57dff5651b34a3cc914c8abd (patch) | |
| tree | 325af069503d735a07491ded13d2f37608ca4ebc /include | |
| parent | 337b0c52b3296f371d04aef71a833e09110e0e6b (diff) | |
| download | talos-obmc-uboot-96ac18c9ccc77c7f57dff5651b34a3cc914c8abd.tar.gz talos-obmc-uboot-96ac18c9ccc77c7f57dff5651b34a3cc914c8abd.zip | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/T1040RDB.h | 2 | ||||
| -rw-r--r-- | include/configs/T1042RDB_PI.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/configs/T1040RDB.h b/include/configs/T1040RDB.h index fd010c057c..395845bd68 100644 --- a/include/configs/T1040RDB.h +++ b/include/configs/T1040RDB.h @@ -147,7 +147,7 @@ /* CONFIG_NUM_DDR_CONTROLLERS is defined in include/asm/config_mpc85xx.h */ #define CONFIG_DIMM_SLOTS_PER_CTLR 1 -#define CONFIG_CHIP_SELECTS_PER_CTRL (4 * CONFIG_DIMM_SLOTS_PER_CTLR) +#define CONFIG_CHIP_SELECTS_PER_CTRL (2 * CONFIG_DIMM_SLOTS_PER_CTLR) #define CONFIG_DDR_SPD #define CONFIG_SYS_DDR_RAW_TIMING diff --git a/include/configs/T1042RDB_PI.h b/include/configs/T1042RDB_PI.h index 6d07805ffd..68656e6ef1 100644 --- a/include/configs/T1042RDB_PI.h +++ b/include/configs/T1042RDB_PI.h @@ -147,7 +147,7 @@ /* CONFIG_NUM_DDR_CONTROLLERS is defined in include/asm/config_mpc85xx.h */ #define CONFIG_DIMM_SLOTS_PER_CTLR 1 -#define CONFIG_CHIP_SELECTS_PER_CTRL (4 * CONFIG_DIMM_SLOTS_PER_CTLR) +#define CONFIG_CHIP_SELECTS_PER_CTRL (2 * CONFIG_DIMM_SLOTS_PER_CTLR) #define CONFIG_DDR_SPD #define CONFIG_SYS_DDR_RAW_TIMING |
