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Diffstat (limited to 'arch/arm/mach-mmp/common.c')
-rw-r--r--arch/arm/mach-mmp/common.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c
index e1e66c18b44..0ec0ca80bb3 100644
--- a/arch/arm/mach-mmp/common.c
+++ b/arch/arm/mach-mmp/common.c
@@ -10,13 +10,20 @@
#include <linux/init.h>
#include <linux/kernel.h>
+#include <linux/module.h>
#include <asm/page.h>
#include <asm/mach/map.h>
#include <mach/addr-map.h>
+#include <mach/cputype.h>
#include "common.h"
+#define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00)
+
+unsigned int mmp_chip_id;
+EXPORT_SYMBOL(mmp_chip_id);
+
static struct map_desc standard_io_desc[] __initdata = {
{
.pfn = __phys_to_pfn(APB_PHYS_BASE),
@@ -31,7 +38,10 @@ static struct map_desc standard_io_desc[] __initdata = {
},
};
-void __init pxa_map_io(void)
+void __init mmp_map_io(void)
{
iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
+
+ /* this is early, initialize mmp_chip_id here */
+ mmp_chip_id = __raw_readl(MMP_CHIPID);
}