microblaze: Support DMA

Add DMA support for Microblaze. There are some part of this new feature:
1. Basic DMA support
2. Enable DMA debug option
3. Setup notifier

Ad 1. dma-mapping come from powerpc and x86 version and it is based on
generic dma-mapping-common.h

Ad 2. DMA support debug features which is used in generic file.
For more information please look at Documentation/DMA-API.txt

Ad 3. notifier is very important to setup dma_ops. Without this part
for example ll_temac driver failed because there are no setup dma operations.

Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index b008168ae946..71ec04137417 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -14,6 +14,8 @@ config MICROBLAZE
         select USB_ARCH_HAS_EHCI
         select ARCH_WANT_OPTIONAL_GPIOLIB
         select HAVE_OPROFILE
+        select HAVE_DMA_ATTRS
+        select HAVE_DMA_API_DEBUG
         select TRACING_SUPPORT
 
 config SWAP
@@ -76,9 +78,6 @@ config HAVE_LATENCYTOP_SUPPORT
 config PCI
         def_bool n
 
-config NO_DMA
-        def_bool y
-
 config DTC
         def_bool y