This patch is required for Kirkwood SoC support may be used by other ARM architectures
Signed-off-by: Prafulla Wadaskar prafulla@marvell.com --- include/asm-arm/cache.h | 41 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 41 insertions(+), 0 deletions(-) create mode 100644 include/asm-arm/cache.h
diff --git a/include/asm-arm/cache.h b/include/asm-arm/cache.h new file mode 100644 index 0000000..205b5da --- /dev/null +++ b/include/asm-arm/cache.h @@ -0,0 +1,41 @@ +/* + * (C) Copyright 2009 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar prafulla@marvell.com + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef _ASM_CACHE_H +#define _ASM_CACHE_H + +#include <asm/system.h> + +/* + * Invalidate L2 Cache using co-proc instruction + */ +static inline void invalidate_l2_cache(void) +{ + unsigned int val=0; + + asm volatile("mcr p15, 1, %0, c15, c11, 0 @ invl l2 cache" + : : "r" (val) : "cc"); + isb(); +} +#endif /* _ASM_CACHE_H */