dma: Add timb-dma

Adds the support for the DMA engine withing the timberdale FPGA.

The DMA channels are strict device to host, or host to device
and can not be used for generic memcpy.

Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index c27f80e5d531..a2fcb2ead892 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -149,6 +149,13 @@ config AMCC_PPC440SPE_ADMA
         help
           Enable support for the AMCC PPC440SPe RAID engines.
 
+config TIMB_DMA
+        tristate "Timberdale FPGA DMA support"
+        depends on MFD_TIMBERDALE || HAS_IOMEM
+        select DMA_ENGINE
+        help
+          Enable support for the Timberdale FPGA DMA engine.
+
 config ARCH_HAS_ASYNC_TX_FIND_CHANNEL
         bool