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>

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 4be766f..b674683 100644 (file)
--- 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

diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index 1dab9ef..345ec47 100644 (file)
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -45,6 +45,7 @@ obj-$(CONFIG_DMA_JZ4780) += dma-jz4780.o
 obj-$(CONFIG_TI_CPPI41) += cppi41.o
 obj-$(CONFIG_K3_DMA) += k3dma.o
 obj-$(CONFIG_MOXART_DMA) += moxart-dma.o
+obj-$(CONFIG_FSL_RAID) += fsl_raid.o
 obj-$(CONFIG_FSL_EDMA) += fsl-edma.o
 obj-$(CONFIG_QCOM_BAM_DMA) += qcom_bam_dma.o
 obj-y += xilinx/

diff --cc drivers/dma/fsl_raid.c
Simple merge

diff --cc drivers/dma/fsl_raid.h
Simple merge