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| author | Dave Liu <r63238@freescale.com> | 2008-01-10 23:09:33 +0800 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2008-01-10 21:24:11 -0600 |
| commit | 061aad4d320dddce26247699dcf2875ee2ea1366 (patch) | |
| tree | 95ae4f72e6b223cd7cba08802bd9b349a2562a45 | |
| parent | ded08317ad9e340b887bf2eb46e9565a0f610a93 (diff) | |
| download | u-boot-imx-061aad4d320dddce26247699dcf2875ee2ea1366.zip u-boot-imx-061aad4d320dddce26247699dcf2875ee2ea1366.tar.gz u-boot-imx-061aad4d320dddce26247699dcf2875ee2ea1366.tar.bz2 | |
mpc83xx: Fix the bug of 266MHz data rate DDR
The DDR doesn't work on the 266MHz data rate,
the patch fix the bug.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
| -rw-r--r-- | cpu/mpc83xx/spd_sdram.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c index 29dd470..0acca47 100644 --- a/cpu/mpc83xx/spd_sdram.c +++ b/cpu/mpc83xx/spd_sdram.c @@ -574,9 +574,9 @@ long int spd_sdram() */ cpo = 0; if (spd.mem_type == SPD_MEMTYPE_DDR2) { - if (effective_data_rate == 266 || effective_data_rate == 333) { - cpo = 0x7; /* READ_LAT + 5/4 */ - } else if (effective_data_rate == 400) { + if (effective_data_rate == 266) { + cpo = 0x4; /* READ_LAT + 1/2 */ + } else if (effective_data_rate == 333 || effective_data_rate == 400) { cpo = 0x7; /* READ_LAT + 5/4 */ } else { /* Automatic calibration */ |