1 files changed, 0 insertions, 28 deletions
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
deleted file mode 100644
index e6808dc..0000000
--- a/arch/nds32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (C) 2013 Andes Technology Corporation
- * Ken Kuo, Andes Technology Corporation <ken_kuo@andestech.com>
- */
-#ifndef __ASM_NDS_DMA_MAPPING_H
-#define __ASM_NDS_DMA_MAPPING_H
-
-#include <linux/dma-direction.h>
-
-static void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
-	return (void *)*handle;
-}
-
-static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
-					   enum dma_data_direction dir)
-{
-	return (unsigned long)vaddr;
-}
-
-static inline void dma_unmap_single(volatile void *vaddr, size_t len,
-				    unsigned long paddr)
-{
-}
-
-#endif /* __ASM_NDS_DMA_MAPPING_H */