Commit Graph

5 Commits

Author SHA1 Message Date
Peter Tyser
484919cf33 fsl_dma: Fix Channel Start bug in dma_check()
The Channel Start (CS) bit in the Mode Register (MR) should actually be
cleared as the comment in the code suggests.  Previously, CS was being
set, not cleared.

Assuming normal operation of the DMA engine, this change shouldn't have
any real affect.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:07:45 -05:00
Peter Tyser
51402ac12b fsl_dma: Add support for arbitrarily large transfers
Support DMA transfers larger than the DMA controller's limit of
(2 ^ 26 - 1) bytes

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:07:43 -05:00
Peter Tyser
a730393a36 fsl_dma: Use proper I/O access functions
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:02:24 -05:00
Peter Tyser
9c06071a60 fsl_dma: Add bitfield definitions for common registers
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:01:55 -05:00
Peter Tyser
017f11f68e 8xxx: Break out DMA code to a common file
DMA support is now enabled via the CONFIG_FSL_DMA define instead of the
previous CONFIG_DDR_ECC

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-01 23:01:51 -05:00