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Diffstat (limited to 'include/asm-sh64/dma.h')
| -rw-r--r-- | include/asm-sh64/dma.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-sh64/dma.h b/include/asm-sh64/dma.h new file mode 100644 index 00000000000..e701f39470a --- /dev/null +++ b/include/asm-sh64/dma.h @@ -0,0 +1,41 @@ +#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 */ |