diff options
Diffstat (limited to 'target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/cache.c')
| -rw-r--r-- | target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/cache.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/cache.c b/target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/cache.c new file mode 100644 index 0000000000..493d9fa111 --- /dev/null +++ b/target/linux/coldfire/files-2.6.31/arch/m68k/coldfire/common/cache.c @@ -0,0 +1,45 @@ +/* + * linux/arch/m68k/coldfire/cache.c + * + * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * Matt Waddel Matt.Waddel@freescale.com + * Kurt Mahan kmahan@freescale.com + * Jason Jin Jason.Jin@freescale.com + * Shrek Wu B16972@freescale.com + * + * 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. + */ + +#include <linux/interrupt.h> +#include <asm/cfcache.h> +#include <asm/coldfire.h> +#include <asm/system.h> + +/* Cache Control Reg shadow reg */ +unsigned long shadow_cacr; + +/** + * cacr_set - Set the Cache Control Register + * @x Value to set + */ +void cacr_set(unsigned long x) +{ + shadow_cacr = x; + + __asm__ __volatile__ ("movec %0, %%cacr" + : /* no outputs */ + : "r" (shadow_cacr)); +} + +/** + * cacr_get - Get the current value of the Cache Control Register + * + * @return CACR value + */ +unsigned long cacr_get(void) +{ + return shadow_cacr; +} |