diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/arm_cortexa8/mx51/Makefile | 2 | ||||
| -rw-r--r-- | cpu/arm_cortexa8/mx51/cache.c | 44 | ||||
| -rw-r--r-- | cpu/arm_cortexa8/mx51/generic.c | 5 |
3 files changed, 50 insertions, 1 deletions
diff --git a/cpu/arm_cortexa8/mx51/Makefile b/cpu/arm_cortexa8/mx51/Makefile index 940b05c..435f26f 100644 --- a/cpu/arm_cortexa8/mx51/Makefile +++ b/cpu/arm_cortexa8/mx51/Makefile @@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).a -COBJS = interrupts.o serial.o generic.o iomux.o timer.o +COBJS = interrupts.o serial.o generic.o iomux.o timer.o cache.o SOBJS = mxc_nand_load.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) diff --git a/cpu/arm_cortexa8/mx51/cache.c b/cpu/arm_cortexa8/mx51/cache.c new file mode 100644 index 0000000..7c79f2f --- /dev/null +++ b/cpu/arm_cortexa8/mx51/cache.c @@ -0,0 +1,44 @@ +/* + * (C) Copyright 2010 Freescale Semiconductor, Inc. + * + * 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/cache.h> + +void l2_cache_enable(void) +{ + asm("mrc 15, 0, r0, c1, c0, 1"); + asm("orr r0, r0, #0x2"); + asm("mcr 15, 0, r0, c1, c0, 1"); +} + +void l2_cache_disable(void) +{ + asm("mrc 15, 0, r0, c1, c0, 1"); + asm("bic r0, r0, #0x2"); + asm("mcr 15, 0, r0, c1, c0, 1"); +} + +/*dummy function for L2 ON*/ +u32 get_device_type(void) +{ + return 0; +} diff --git a/cpu/arm_cortexa8/mx51/generic.c b/cpu/arm_cortexa8/mx51/generic.c index 4920c5c..ee35dd9 100644 --- a/cpu/arm_cortexa8/mx51/generic.c +++ b/cpu/arm_cortexa8/mx51/generic.c @@ -270,6 +270,11 @@ int arch_cpu_init(void) { icache_enable(); dcache_enable(); +#ifdef CONFIG_L2_OFF + l2_cache_disable(); +#else + l2_cache_enable(); +#endif return 0; } #endif |