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[ARM] MX31/MX35: Add l2x0 cache support

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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2009-02-08 02:00:50 +01:00
parent 9536ff3361
commit cb88214d72
2 changed files with 28 additions and 2 deletions
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27
arch/arm/mach-mx3/mm.c
View file

@ -22,10 +22,14 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <mach/hardware.h>
#include <linux/err.h>
#include <asm/pgtable.h>
#include <asm/mach/map.h>
#include <asm/hardware/cache-l2x0.h>
#include <mach/common.h>
#include <mach/hardware.h>
/*!
* @file mm.c
@ -62,3 +66,24 @@ void __init mxc_map_io(void)
{
iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
}
#ifdef CONFIG_CACHE_L2X0
static int mxc_init_l2x0(void)
{
void __iomem *l2x0_base;
l2x0_base = ioremap(L2CC_BASE_ADDR, 4096);
if (IS_ERR(l2x0_base)) {
printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
PTR_ERR(l2x0_base));
return 0;
}
l2x0_init(l2x0_base, 0x00030024, 0x00000000);
return 0;
}
arch_initcall(mxc_init_l2x0);
#endif

3
arch/arm/mm/Kconfig
View file

@ -704,7 +704,8 @@ config CACHE_FEROCEON_L2_WRITETHROUGH
config CACHE_L2X0
bool "Enable the L2x0 outer cache controller"
depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || REALVIEW_EB_A9MP
depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31
default y
select OUTER_CACHE
help