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| author | Haiying Wang <Haiying.Wang@freescale.com> | 2010-09-29 13:31:36 -0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-10-07 09:49:47 -0500 |
| commit | b6bde930901b1375264865b979507eb25806cb77 (patch) | |
| tree | 036cd7c39a9d11753fb1cdc27b54672ec239c5c5 /board/freescale | |
| parent | 3aed55074211b4e886d97f16773f186a019d508d (diff) | |
| download | u-boot-imx-b6bde930901b1375264865b979507eb25806cb77.zip u-boot-imx-b6bde930901b1375264865b979507eb25806cb77.tar.gz u-boot-imx-b6bde930901b1375264865b979507eb25806cb77.tar.bz2 | |
mpc8569mds: fix some ddr settings
Enable half drive strength, set RTT to 60Ohm and set write leveling override.
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'board/freescale')
| -rw-r--r-- | board/freescale/mpc8569mds/ddr.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/board/freescale/mpc8569mds/ddr.c b/board/freescale/mpc8569mds/ddr.c index e938788..e3f5b4a 100644 --- a/board/freescale/mpc8569mds/ddr.c +++ b/board/freescale/mpc8569mds/ddr.c @@ -77,8 +77,18 @@ void fsl_ddr_board_options(memctl_options_t *popts, popts->write_data_delay = 2; /* - * Factors to consider for half-strength driver enable: - * - number of DIMMs installed + * Enable half drive strength */ - popts->half_strength_driver_enable = 0; + popts->half_strength_driver_enable = 1; + + /* Write leveling override */ + popts->wrlvl_en = 1; + popts->wrlvl_override = 1; + popts->wrlvl_sample = 0xa; + popts->wrlvl_start = 0x4; + + /* Rtt and Rtt_W override */ + popts->rtt_override = 1; + popts->rtt_override_value = DDR3_RTT_60_OHM; + popts->rtt_wr_override_value = 0; /* Rtt_WR= dynamic ODT off */ } |