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| author | Martin Krause <martin.krause@tqs.de> | 2007-09-27 14:54:36 +0200 |
|---|---|---|
| committer | Martin Krause <martin.krause@tqs.de> | 2007-10-15 09:45:00 +0200 |
| commit | d43e489baf02afae49077791fb22332d240d8656 (patch) | |
| tree | 33df86abe51f3aeebb7580fdc197b4b626bbf054 /board/quantum | |
| parent | 9ef57bbee1c67cc01da2026c242c4692db32be36 (diff) | |
| download | u-boot-imx-d43e489baf02afae49077791fb22332d240d8656.zip u-boot-imx-d43e489baf02afae49077791fb22332d240d8656.tar.gz u-boot-imx-d43e489baf02afae49077791fb22332d240d8656.tar.bz2 | |
TQM866M: 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 97. This result
in a refresh rate of 4 * 7.8 us at the default clock
50 MHz. At 133 MHz the value will be then 4 * 2.9 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 'board/quantum')
0 files changed, 0 insertions, 0 deletions