diff --git a/src/include/device/dram/ddr3.h b/src/include/device/dram/ddr3.h
index 2cfd6ac..0756095 100644
--- a/src/include/device/dram/ddr3.h
+++ b/src/include/device/dram/ddr3.h
@@ -31,6 +31,8 @@
 
 #include <stdint.h>
 #include <spd.h>
+#include <device/dram/common.h>
+
 
 /**
  * Convenience definitions for SPD offsets
@@ -46,32 +48,6 @@
 /** @} */
 
 /**
- * \brief Convenience definitions for TCK values
- *
- * Different values for tCK, representing standard DDR3 frequencies.
- * These values are in 1/256 ns units.
- * @{
- */
-#define NS2MHZ_DIV256	(1000 << 8)
-
-#define TCK_1333MHZ     192
-#define TCK_1200MHZ     212
-#define TCK_1100MHZ     232
-#define TCK_1066MHZ     240
-#define TCK_1000MHZ     256
-#define TCK_933MHZ      274
-#define TCK_900MHZ      284
-#define TCK_800MHZ      320
-#define TCK_700MHZ      365
-#define TCK_666MHZ      384
-#define TCK_533MHZ      480
-#define TCK_400MHZ      640
-#define TCK_333MHZ      768
-#define TCK_266MHZ      960
-#define TCK_200MHZ      1280
-/** @} */
-
-/**
  * \brief Convenience macro for enabling printk with CONFIG_DEBUG_RAM_SETUP
  *
  * Use this macro instead of printk(); for verbose RAM initialization messages.
@@ -198,14 +174,6 @@
 	u8 part_number[17];
 } dimm_attr;
 
-/** Result of the SPD decoding process */
-enum spd_status {
-	SPD_STATUS_OK = 0,
-	SPD_STATUS_INVALID,
-	SPD_STATUS_CRC_ERROR,
-	SPD_STATUS_INVALID_FIELD,
-};
-
 enum ddr3_xmp_profile {
 	DDR3_XMP_PROFILE_1 = 0,
 	DDR3_XMP_PROFILE_2 = 1,