1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/plat-mxc/include/mach/mx21.h b/arch/arm/plat-mxc/include/mach/mx21.h
index bb297d8765a7..5b9f062cfd25 100644
--- a/arch/arm/plat-mxc/include/mach/mx21.h
+++ b/arch/arm/plat-mxc/include/mach/mx21.h
@@ -92,6 +92,11 @@
 
 #define MX21_IRAM_BASE_ADDR             0xffffe800      /* internal ram */
 
+#define MX21_IO_ADDRESS(x) (                                            \
+        IMX_IO_ADDRESS(x, MX21_AIPI) ?:                                 \
+        IMX_IO_ADDRESS(x, MX21_SAHB1) ?:                                \
+        IMX_IO_ADDRESS(x, MX21_X_MEMC))
+
 /* fixed interrupt numbers */
 #define MX21_INT_CSPI3          6
 #define MX21_INT_GPIO           8