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| author | Jens Gehrlein <jens.gehrlein@tqs.de> | 2007-09-27 14:54:46 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2007-12-27 01:59:33 +0100 |
| commit | 492c7049869348d31168de8dad89651315e468e0 (patch) | |
| tree | 573286b141da27fd8ee66b0a15f2876dd56ce55c /common/spartan3.c | |
| parent | dabad4b9bc46908e301f73ce76b38b23626a96e9 (diff) | |
| download | u-boot-imx-492c7049869348d31168de8dad89651315e468e0.zip u-boot-imx-492c7049869348d31168de8dad89651315e468e0.tar.gz u-boot-imx-492c7049869348d31168de8dad89651315e468e0.tar.bz2 | |
TQM885D: fix SDRAM refresh
At 133 MHz the current SDRAM refresh rate is too fast
(measured 4 * 1.17 us).
CFG_MAMR_PTA changes from 39 to 128. This result
in a refresh rate of 4 * 7.8 us at the default clock
66 MHz. At 133 MHz the value will be then 4 * 3.8 us.
This is a compromise until a new method is found to
adjust the refresh rate.
Signed-off-by: Martin Krause <martin.krause@tqs.de>
Diffstat (limited to 'common/spartan3.c')
0 files changed, 0 insertions, 0 deletions