tree f8b90b4c561858c47624307df4d1e67498f23df2
parent a406f5a3b68ee1db2306a2ba1c9b00dbd3505d05
author Pierre Ossman <drzeus@drzeus.cx> 1151855495 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1151855495 +0100

[MMC] sdhci: Avoid sdhci DMA boundaries

The sdhci controllers will issue an interrupt when a configurable number of
bytes have been transfered using DMA. The purpose is to handle multiple,
scattered memory pages.

Unfortunately, it requires that all transfers are completely aligned to
memory pages, which we cannot guarantee. So we just disable the function.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>