1 files changed, 48 insertions, 0 deletions
diff --git a/roms/u-boot/arch/avr32/include/asm/dma-mapping.h b/roms/u-boot/arch/avr32/include/asm/dma-mapping.h
new file mode 100644
index 00000000..95ea81ff
--- /dev/null
+++ b/roms/u-boot/arch/avr32/include/asm/dma-mapping.h
@@ -0,0 +1,48 @@
+/*
+ * 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,
+};
+extern void *dma_alloc_coherent(size_t len, unsigned long *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:
+		dcache_flush_range(vaddr, len);
+		break;
+	case DMA_TO_DEVICE:
+		dcache_clean_range(vaddr, len);
+		break;
+	case DMA_FROM_DEVICE:
+		dcache_invalidate_range(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 */