tree 6309f7faa86f2c0f7b843b9263ccc13bf379ec64
parent bcfb7465c03a8c62c89da374677df56f6b894d44
author Ira Snyder <iws@ovro.caltech.edu> 1242412400 -0700
committer Li Yang <leoli@freescale.com> 1242982436 +0800

fsldma: snooping is not enabled for last entry in descriptor chain

On the 83xx controller, snooping is necessary for the DMA controller to
ensure cache coherence with the CPU when transferring to/from RAM.

The last descriptor in a chain will always have the End-of-Chain interrupt
bit set, so we can set the snoop bit while adding the End-of-Chain
interrupt bit.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Li Yang <leoli@freescale.com>