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Diffstat (limited to 'arch/avr32/include/asm/dma-mapping.h')
-rw-r--r--arch/avr32/include/asm/dma-mapping.h55
1 files changed, 0 insertions, 55 deletions
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
deleted file mode 100644
index 1cde8275f4..0000000000
--- a/arch/avr32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2006 Atmel Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-#ifndef __ASM_AVR32_DMA_MAPPING_H
-#define __ASM_AVR32_DMA_MAPPING_H
-
-#include <asm/io.h>
-#include <asm/arch/cacheflush.h>
-
-enum dma_data_direction {
- DMA_BIDIRECTIONAL = 0,
- DMA_TO_DEVICE = 1,
- DMA_FROM_DEVICE = 2,
-};
-
-static inline 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)
-{
- extern void __bad_dma_data_direction(void);
-
- switch (dir) {
- case DMA_BIDIRECTIONAL:
- flush_dcache_range((unsigned long)vaddr,
- (unsigned long)vaddr + len);
- break;
- case DMA_TO_DEVICE:
- dcache_clean_range(vaddr, len);
- break;
- case DMA_FROM_DEVICE:
- invalidate_dcache_range((unsigned long)vaddr,
- (unsigned long)vaddr + len);
- break;
- default:
- /* This will cause a linker error */
- __bad_dma_data_direction();
- }
-
- return virt_to_phys(vaddr);
-}
-
-static inline void dma_unmap_single(volatile void *vaddr, size_t len,
- unsigned long paddr)
-{
-
-}
-
-#endif /* __ASM_AVR32_DMA_MAPPING_H */