1 /*
2  * Copyright (c) 2011 The Chromium OS Authors.
3  * See file CREDITS for list of people who contributed to this
4  * project.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19  * MA 02111-1307 USA
20  */
21 
22 #ifndef __MICROBLAZE_CACHE_H__
23 #define __MICROBLAZE_CACHE_H__
24 
25 /*
26  * The microblaze can have either a 4 or 16 byte cacheline depending on whether
27  * you are using OPB(4) or CacheLink(16).  If the board config has not specified
28  * a cacheline size we assume the larger value of 16 bytes for DMA buffer
29  * alignment.
30  */
31 #ifdef CONFIG_SYS_CACHELINE_SIZE
32 #define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
33 #else
34 #define ARCH_DMA_MINALIGN	16
35 #endif
36 
37 #endif /* __MICROBLAZE_CACHE_H__ */
38