1 /*
2  * Copyright (C) 2006 Atmark Techno, Inc.
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License. See the file "COPYING" in the main directory of this archive
6  * for more details.
7  */
8 
9 #ifndef _ASM_MICROBLAZE_DMA_H
10 #define _ASM_MICROBLAZE_DMA_H
11 
12 #ifndef CONFIG_MMU
13 /* we don't have dma address limit. define it as zero to be
14  * unlimited. */
15 #define MAX_DMA_ADDRESS		(0)
16 #else
17 /* Virtual address corresponding to last available physical memory address.  */
18 #define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
19 #endif
20 
21 #ifdef CONFIG_PCI
22 extern int isa_dma_bridge_buggy;
23 #else
24 #define isa_dma_bridge_buggy     (0)
25 #endif
26 
27 #endif /* _ASM_MICROBLAZE_DMA_H */
28