Commit Graph

2 Commits

Author SHA1 Message Date
Sriram
6a1fef6d00 net: davinci_emac:Fix translation logic for buffer descriptor
With recent changes to the driver(switch to new cpdma layer),
the support for buffer descriptor address translation logic
is broken. This affects platforms where the physical address of
the descriptors as seen by the DMA engine is different from the
physical address.

Original Patch adding translation logic support:
Commit: ad021ae886

Signed-off-by: Sriramakrishnan A G <srk@ti.com>
Tested-By: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-22 19:25:05 -07:00
Cyril Chemparathy
ef8c2dab01 net: davinci_emac: separate out cpdma code
In addition to being embedded into the EMAC controller, the CPDMA hardware
block is used in TI's CPSW switch controller.  Fortunately, the programming
interface to this hardware block remains pretty nicely consistent across these
devices.

This patch adds a new CPDMA services layer, which can then be reused across
EMAC and CPSW drivers.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Tested-by: Michael Williamson <michael.williamson@criticallink.com>
Tested-by: Caglar Akyuz <caglarakyuz@gmail.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-09-24 07:40:31 -07:00