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-rw-r--r--include/asm-sh64/dma.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-sh64/dma.h b/include/asm-sh64/dma.h
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+++ b/include/asm-sh64/dma.h
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+#ifndef __ASM_SH64_DMA_H
+#define __ASM_SH64_DMA_H
+
+/*
+ * 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.
+ *
+ * include/asm-sh64/dma.h
+ *
+ * Copyright (C) 2000, 2001 Paolo Alberelli
+ * Copyright (C) 2003 Paul Mundt
+ *
+ */
+
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+
+#define MAX_DMA_CHANNELS 4
+
+/*
+ * SH5 can DMA in any memory area.
+ *
+ * The static definition is dodgy because it should limit
+ * the highest DMA-able address based on the actual
+ * Physical memory available. This is actually performed
+ * at run time in defining the memory allowed to DMA_ZONE.
+ */
+#define MAX_DMA_ADDRESS ~(NPHYS_MASK)
+
+#define DMA_MODE_READ 0
+#define DMA_MODE_WRITE 1
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy (0)
+#endif
+
+#endif /* __ASM_SH64_DMA_H */