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-rw-r--r--arch/microblaze/Kconfig1
-rw-r--r--arch/microblaze/include/asm/dma-mapping.h2
2 files changed, 1 insertions, 2 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 8e47121b8b8b..4ed8ebf33509 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -2,6 +2,7 @@ config MICROBLAZE
def_bool y
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
select TIMER_OF
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 3fad5e722a66..e15cd2f76e23 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -28,8 +28,6 @@
#include <asm/io.h>
#include <asm/cacheflush.h>
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
#define __dma_alloc_coherent(dev, gfp, size, handle) NULL
#define __dma_free_coherent(size, addr) ((void)0)