dmaengine: Driver support for FSL RaidEngine device.

The RaidEngine is a new FSL hardware used for Raid5/6 acceration.
This patch enables the RaidEngine functionality and provides
hardware offloading capability for memcpy, xor and pq computation.
It works with async_tx.

Signed-off-by: Harninder Rai <harninder.rai@freescale.com>
Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 4be766f43aa9..b674683de24b 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -125,6 +125,17 @@ config FSL_DMA
           EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on
           some Txxx and Bxxx parts.
 
+config FSL_RAID
+        tristate "Freescale RAID engine Support"
+        depends on FSL_SOC && !ASYNC_TX_ENABLE_CHANNEL_SWITCH
+        select DMA_ENGINE
+        select DMA_ENGINE_RAID
+        ---help---
+          Enable support for Freescale RAID Engine. RAID Engine is
+          available on some QorIQ SoCs (like P5020/P5040). It has
+          the capability to offload memcpy, xor and pq computation
+          for raid5/6.
+
 config MPC512X_DMA
         tristate "Freescale MPC512x built-in DMA engine support"
         depends on PPC_MPC512x || PPC_MPC831x