diff options
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 000000000000..e701f39470a2 --- /dev/null +++ b/include/asm-sh64/dma.h | |||
@@ -0,0 +1,41 @@ | |||
1 | #ifndef __ASM_SH64_DMA_H | ||
2 | #define __ASM_SH64_DMA_H | ||
3 | |||
4 | /* | ||
5 | * This file is subject to the terms and conditions of the GNU General Public | ||
6 | * License. See the file "COPYING" in the main directory of this archive | ||
7 | * for more details. | ||
8 | * | ||
9 | * include/asm-sh64/dma.h | ||
10 | * | ||
11 | * Copyright (C) 2000, 2001 Paolo Alberelli | ||
12 | * Copyright (C) 2003 Paul Mundt | ||
13 | * | ||
14 | */ | ||
15 | |||
16 | #include <linux/mm.h> | ||
17 | #include <asm/io.h> | ||
18 | #include <asm/pgtable.h> | ||
19 | |||
20 | #define MAX_DMA_CHANNELS 4 | ||
21 | |||
22 | /* | ||
23 | * SH5 can DMA in any memory area. | ||
24 | * | ||
25 | * The static definition is dodgy because it should limit | ||
26 | * the highest DMA-able address based on the actual | ||
27 | * Physical memory available. This is actually performed | ||
28 | * at run time in defining the memory allowed to DMA_ZONE. | ||
29 | */ | ||
30 | #define MAX_DMA_ADDRESS ~(NPHYS_MASK) | ||
31 | |||
32 | #define DMA_MODE_READ 0 | ||
33 | #define DMA_MODE_WRITE 1 | ||
34 | |||
35 | #ifdef CONFIG_PCI | ||
36 | extern int isa_dma_bridge_buggy; | ||
37 | #else | ||
38 | #define isa_dma_bridge_buggy (0) | ||
39 | #endif | ||
40 | |||
41 | #endif /* __ASM_SH64_DMA_H */ | ||