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>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 911e7f148107..775fd8797c2a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -952,6 +952,7 @@ config TI_DAVINCI_EMAC
         tristate "TI DaVinci EMAC Support"
         depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 )
         select TI_DAVINCI_MDIO
+        select TI_DAVINCI_CPDMA
         select PHYLIB
         help
           This driver supports TI's DaVinci Ethernet .
@@ -969,6 +970,15 @@ config TI_DAVINCI_MDIO
           To compile this driver as a module, choose M here: the module
           will be called davinci_mdio.  This is recommended.
 
+config TI_DAVINCI_CPDMA
+        tristate "TI DaVinci CPDMA Support"
+        depends on ARM && ( ARCH_DAVINCI || ARCH_OMAP3 )
+        help
+          This driver supports TI's DaVinci CPDMA dma engine.
+
+          To compile this driver as a module, choose M here: the module
+          will be called davinci_cpdma.  This is recommended.
+
 config DM9000
         tristate "DM9000 support"
         depends on ARM || BLACKFIN || MIPS