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(parent: dc38994) | patch
mmc: don't use DMA on newer ENE controllers
authorPierre Ossman <drzeus@drzeus.cx>
Fri, 4 Jul 2008 10:51:20 +0000 (12:51 +0200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 4 Jul 2008 17:44:49 +0000 (10:44 -0700)
commitb676bac5e84aea18e199fac8615b29f03cdb9535
treebef08cc990a9dd83a515befc4939165acfb3d54atree | snapshot
parentdc38994a31cb9242609593de5a28353c15a2f492commit | diff
mmc: don't use DMA on newer ENE controllers

Even the newer ENE controllers have bugs in their DMA engine that make
it too dangerous to use. Disable it until someone has figured out under
which conditions it corrupts data.

This has caused problems at least once, and can be found as bug report
10925 in the kernel bugzilla.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/mmc/host/sdhci.c diff | blob | history
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