1 files changed, 42 insertions, 0 deletions

diff --git a/include/asm-mips/mach-lemote/dma-coherence.h b/include/asm-mips/mach-lemote/dma-coherence.h
new file mode 100644
index 000000000000..7e914777ebc4
--- /dev/null
+++ b/include/asm-mips/mach-lemote/dma-coherence.h
@@ -0,0 +1,42 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006, 07  Ralf Baechle <ralf@linux-mips.org>
+ * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ *
+ */
+#ifndef __ASM_MACH_LEMOTE_DMA_COHERENCE_H
+#define __ASM_MACH_LEMOTE_DMA_COHERENCE_H
+
+struct device;
+
+static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
+                                          size_t size)
+{
+        return virt_to_phys(addr) | 0x80000000;
+}
+
+static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
+                                               struct page *page)
+{
+        return page_to_phys(page) | 0x80000000;
+}
+
+static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
+{
+        return dma_addr & 0x7fffffff;
+}
+
+static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
+{
+}
+
+static inline int plat_device_is_coherent(struct device *dev)
+{
+        return 0;
+}
+
+#endif /* __ASM_MACH_LEMOTE_DMA_COHERENCE_H */