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arm: generic cache.h for ARM architectures

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This patch is required for Kirkwood SoC support
may be used by other ARM architectures

Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
This commit is contained in:
Prafulla Wadaskar 2009-06-20 11:01:52 +02:00 committed by Jean-Christophe PLAGNIOL-VILLARD
parent 9c8c706c92
commit 5c3d5817e5
1 changed files with 41 additions and 0 deletions
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include/asm-arm/cache.h Normal file
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/*
* (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 */