diff options
| author | Cliff Brake <cbrake@bec-systems.com> | 2009-01-22 17:07:03 -0500 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2009-02-02 20:57:07 +0100 |
| commit | b6018958a57f6621d6979c4384e42a3df636beed (patch) | |
| tree | 84806c5f1b5839e66edcfc811927b137fda7a247 /Documentation | |
| parent | e10a854c4602072c34c03380b99da0a3ee15682c (diff) | |
pxamci: enable DMA for write ops after CMD/RESP
With the PXA270 MMC hardware, there seems to be an issue of
data corruption on writes where a 4KB data block is offset
by one byte.
If we delay enabling the DMA for writes until after the CMD/RESP
has finished, the problem seems to be fixed.
related to PXA270 Erratum #91
Tested-by: Vernon Sauder <VernonInHand@gmail.com>
Signed-off-by: Cliff Brake <cbrake@bec-systems.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions