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authorSascha Hauer <s.hauer@pengutronix.de>2009-02-08 02:00:50 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2009-03-13 10:34:29 +0100
commitcb88214d726b337d49c1f65cbc5e5ac85837b11b (patch)
tree286cb0b63eeb16c4c3f3f728813cabc2298dc730
parent9536ff33619e13fcc4bd16354faea97dba244f73 (diff)
downloadop-kernel-dev-cb88214d726b337d49c1f65cbc5e5ac85837b11b.zip
op-kernel-dev-cb88214d726b337d49c1f65cbc5e5ac85837b11b.tar.gz
[ARM] MX31/MX35: Add l2x0 cache support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--arch/arm/mach-mx3/mm.c27
-rw-r--r--arch/arm/mm/Kconfig3
2 files changed, 28 insertions, 2 deletions
diff --git a/arch/arm/mach-mx3/mm.c b/arch/arm/mach-mx3/mm.c
index 0589b5c..44fcb66 100644
--- a/arch/arm/mach-mx3/mm.c
+++ b/arch/arm/mach-mx3/mm.c
@@ -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
+
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index d490f37..0d8581f 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -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
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