diff options
author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:15 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:25 +0200 |
commit | 8a15c2d10b0b784f0cfba1240f06a4d933b975fa (patch) | |
tree | ef8243267f89fb66a5ff9f3085b80199dfa31599 /arch/avr32/cpu/cache.c | |
parent | 1e3827d9cf9442e188604fd1099ac38375135125 (diff) |
avr32: Move cpu/at32ap/* to arch/avr32/cpu/*
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/avr32/cpu/cache.c')
-rw-r--r-- | arch/avr32/cpu/cache.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/arch/avr32/cpu/cache.c b/arch/avr32/cpu/cache.c new file mode 100644 index 0000000000..28b945669a --- /dev/null +++ b/arch/avr32/cpu/cache.c @@ -0,0 +1,97 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * 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 + */ + +#include <common.h> + +#include <asm/arch/cacheflush.h> + +void dcache_clean_range(volatile void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = CONFIG_SYS_DCACHE_LINESZ; + + /* You asked for it, you got it */ + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + dcache_clean_line((void *)v); + + sync_write_buffer(); +} + +void dcache_invalidate_range(volatile void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = CONFIG_SYS_DCACHE_LINESZ; + + /* You asked for it, you got it */ + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + dcache_invalidate_line((void *)v); +} + +void dcache_flush_range(volatile void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = CONFIG_SYS_DCACHE_LINESZ; + + /* You asked for it, you got it */ + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + dcache_flush_line((void *)v); + + sync_write_buffer(); +} + +void icache_invalidate_range(volatile void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = CONFIG_SYS_ICACHE_LINESZ; + + /* You asked for it, you got it */ + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + icache_invalidate_line((void *)v); +} + +/* + * This is called after loading something into memory. We need to + * make sure that everything that was loaded is actually written to + * RAM, and that the icache will look for it. Cleaning the dcache and + * invalidating the icache will do the trick. + */ +void flush_cache (unsigned long start_addr, unsigned long size) +{ + dcache_clean_range((void *)start_addr, size); + icache_invalidate_range((void *)start_addr, size); +} |