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| author | Pierre Ossman <drzeus@drzeus.cx> | 2007-12-02 13:52:11 -0500 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-12-12 14:01:00 -0500 |
| commit | c9fddbc4f844f5a16b5957c61fe2cfcb5c12f990 (patch) | |
| tree | 0bc8f857acfb7c47ab4c7231ffab5c8628b714c3 /Documentation/block/barrier.txt | |
| parent | c6573c94670882079174e2ea0da4abf1a0da51fe (diff) | |
sdhci: use PIO when DMA can't satisfy the request
Some controllers have been designed on the assumption that all transfers
will be 32-bit aligned, both in start address and in size. This is not a
guarantee the SDHCI specification provides and not one we can provide.
Revert back to PIO for individual requests in order to work around the
hardware bug.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'Documentation/block/barrier.txt')
0 files changed, 0 insertions, 0 deletions