diff --git a/arch/arm/mach-mx25/Makefile b/arch/arm/mach-mx25/Makefile
index 10cebc5ced8c..6db9603ad197 100644
--- a/arch/arm/mach-mx25/Makefile
+++ b/arch/arm/mach-mx25/Makefile
@@ -1,3 +1,3 @@
 obj-y				:= mm.o devices.o
 obj-$(CONFIG_ARCH_MX25)		+= clock.o
-obj-$(CONFIG_MACH_MX25_3DS)	+= mach-mx25pdk.o
+obj-$(CONFIG_MACH_MX25_3DS)	+= mach-mx25_3ds.o
diff --git a/arch/arm/mach-mx25/mach-mx25pdk.c b/arch/arm/mach-mx25/mach-mx25_3ds.c
similarity index 97%
rename from arch/arm/mach-mx25/mach-mx25pdk.c
rename to arch/arm/mach-mx25/mach-mx25_3ds.c
index 83d74109e7d8..26ba246c57ee 100644
--- a/arch/arm/mach-mx25/mach-mx25pdk.c
+++ b/arch/arm/mach-mx25/mach-mx25_3ds.c
@@ -16,6 +16,12 @@
  * Boston, MA  02110-1301, USA.
  */
 
+/*
+ * This machine is known as:
+ *  - i.MX25 3-Stack Development System
+ *  - i.MX25 Platform Development Kit (i.MX25 PDK)
+ */
+
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/delay.h>