diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c
index 0b8e5ef..3c60a9f 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.c
+++ b/src/northbridge/intel/sandybridge/raminit_common.c
@@ -3,6 +3,7 @@
 #include <assert.h>
 #include <commonlib/helpers.h>
 #include <console/console.h>
+#include <cpu/intel/model_206ax/model_206ax.h>
 #include <string.h>
 #include <arch/cpu.h>
 #include <device/mmio.h>
diff --git a/src/northbridge/intel/sandybridge/raminit_common.h b/src/northbridge/intel/sandybridge/raminit_common.h
index 53d0cd9..4499123 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.h
+++ b/src/northbridge/intel/sandybridge/raminit_common.h
@@ -8,18 +8,6 @@
 #define BASEFREQ	133
 #define tDLLK		512
 
-#define IS_SANDY_CPU(x)    ((x & 0xffff0) == 0x206a0)
-#define IS_SANDY_CPU_C(x)  ((x & 0xf) == 4)
-#define IS_SANDY_CPU_D0(x) ((x & 0xf) == 5)
-#define IS_SANDY_CPU_D1(x) ((x & 0xf) == 6)
-#define IS_SANDY_CPU_D2(x) ((x & 0xf) == 7)
-
-#define IS_IVY_CPU(x)   ((x & 0xffff0) == 0x306a0)
-#define IS_IVY_CPU_C(x) ((x & 0xf) == 4)
-#define IS_IVY_CPU_K(x) ((x & 0xf) == 5)
-#define IS_IVY_CPU_D(x) ((x & 0xf) == 6)
-#define IS_IVY_CPU_E(x) ((x & 0xf) >= 8)
-
 #define NUM_CHANNELS	2
 #define NUM_SLOTRANKS	4
 #define NUM_SLOTS	2
diff --git a/src/northbridge/intel/sandybridge/raminit_native.c b/src/northbridge/intel/sandybridge/raminit_native.c
index 0d581f5..9961e89 100644
--- a/src/northbridge/intel/sandybridge/raminit_native.c
+++ b/src/northbridge/intel/sandybridge/raminit_native.c
@@ -3,6 +3,7 @@
 #include <commonlib/clamp.h>
 #include <console/console.h>
 #include <console/usb.h>
+#include <cpu/intel/model_206ax/model_206ax.h>
 #include <delay.h>
 #include <device/device.h>
 #include <device/pci_def.h>
diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h
index e5f2132..235ca0e 100644
--- a/src/northbridge/intel/sandybridge/sandybridge.h
+++ b/src/northbridge/intel/sandybridge/sandybridge.h
@@ -8,18 +8,6 @@
 #define BASE_REV_IVB	0x50
 #define BASE_REV_MASK	0x50
 
-/* SandyBridge CPU stepping */
-#define SNB_STEP_D0	5 /* Also J0 */
-#define SNB_STEP_D1	6
-#define SNB_STEP_D2	7 /* Also J1/Q0 */
-
-/* IvyBridge CPU stepping */
-#define IVB_STEP_A0	0
-#define IVB_STEP_B0	2
-#define IVB_STEP_C0	4
-#define IVB_STEP_K0	5
-#define IVB_STEP_D0	6
-
 #include "memmap.h"
 
 /* Everything below this line is ignored in the DSDT */