dma: Add Xilinx AXI Video Direct Memory Access Engine driver support

This is the driver for the AXI Video Direct Memory Access (AXI
VDMA) core, which is a soft Xilinx IP core that provides high-
bandwidth direct memory access between memory and AXI4-Stream
type video target peripherals. The core provides efficient two
dimensional DMA operations with independent asynchronous read
and write channel operation.

This module works on Zynq (ARM Based SoC) and Microblaze platforms.

Signed-off-by: Srikanth Thokala <sthokal@xilinx.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Reviewed-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 5c5863842de9..b30b7ed89fb2 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -361,6 +361,20 @@ config FSL_EDMA
           multiplexing capability for DMA request sources(slot).
           This module can be found on Freescale Vybrid and LS-1 SoCs.
 
+config XILINX_VDMA
+        tristate "Xilinx AXI VDMA Engine"
+        depends on (ARCH_ZYNQ || MICROBLAZE)
+        select DMA_ENGINE
+        help
+          Enable support for Xilinx AXI VDMA Soft IP.
+
+          This engine provides high-bandwidth direct memory access
+          between memory and AXI4-Stream video type target
+          peripherals including peripherals which support AXI4-
+          Stream Video Protocol.  It has two stream interfaces/
+          channels, Memory Mapped to Stream (MM2S) and Stream to
+          Memory Mapped (S2MM) for the data transfers.
+
 config DMA_ENGINE
         bool