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(parent: c6573c9) | patch
sdhci: use PIO when DMA can't satisfy the request
authorPierre Ossman <drzeus@drzeus.cx>
Sun, 2 Dec 2007 18:52:11 +0000 (19:52 +0100)
committerPierre Ossman <drzeus@drzeus.cx>
Wed, 12 Dec 2007 19:01:00 +0000 (20:01 +0100)
commitc9fddbc4f844f5a16b5957c61fe2cfcb5c12f990
tree0bc8f857acfb7c47ab4c7231ffab5c8628b714c3tree | snapshot
parentc6573c94670882079174e2ea0da4abf1a0da51fecommit | 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>
drivers/mmc/host/sdhci.c diff | blob | history
drivers/mmc/host/sdhci.h diff | blob | history
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