| /* |
| * Copyright (c) 2011 The Chromium OS Authors. |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __AVR32_CACHE_H__ |
| #define __AVR32_CACHE_H__ |
| |
| /* |
| * Since the AVR32 architecture has a queryable cacheline size with a maximum |
| * value of 256 we set the DMA buffer alignemnt requirement to this maximum |
| * value. The board config can override this if it knows that the cacheline |
| * size is a smaller value. AVR32 boards use the CONFIG_SYS_DCACHE_LINESZ |
| * macro to specify cache line size, so if it is set we use it instead. |
| */ |
| #ifdef CONFIG_SYS_CACHELINE_SIZE |
| #define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE |
| #elif defined(CONFIG_SYS_DCACHE_LINESZ) |
| #define ARCH_DMA_MINALIGN CONFIG_SYS_DCACHE_LINESZ |
| #else |
| #define ARCH_DMA_MINALIGN 256 |
| #endif |
| |
| #endif /* __AVR32_CACHE_H__ */ |