diff --git a/src/northbridge/intel/gm45/stage_cache.c b/src/northbridge/intel/gm45/stage_cache.c
index cbe4556bab..47f08c1397 100644
--- a/src/northbridge/intel/gm45/stage_cache.c
+++ b/src/northbridge/intel/gm45/stage_cache.c
@@ -13,11 +13,9 @@
  * GNU General Public License for more details.
  */
 
-#include <cbmem.h>
-#include <device/pci.h>
+#include <stdint.h>
 #include <stage_cache.h>
 #include <cpu/intel/smm/gen1/smi.h>
-#include "gm45.h"
 
 void stage_cache_external_region(void **base, size_t *size)
 {
diff --git a/src/northbridge/intel/i945/stage_cache.c b/src/northbridge/intel/i945/stage_cache.c
index b659796ea8..47f08c1397 100644
--- a/src/northbridge/intel/i945/stage_cache.c
+++ b/src/northbridge/intel/i945/stage_cache.c
@@ -13,11 +13,9 @@
  * GNU General Public License for more details.
  */
 
-#include <cbmem.h>
-#include <device/pci.h>
+#include <stdint.h>
 #include <stage_cache.h>
 #include <cpu/intel/smm/gen1/smi.h>
-#include "i945.h"
 
 void stage_cache_external_region(void **base, size_t *size)
 {
diff --git a/src/northbridge/intel/pineview/stage_cache.c b/src/northbridge/intel/pineview/stage_cache.c
index 6f949e69bd..47f08c1397 100644
--- a/src/northbridge/intel/pineview/stage_cache.c
+++ b/src/northbridge/intel/pineview/stage_cache.c
@@ -13,11 +13,9 @@
  * GNU General Public License for more details.
  */
 
-#include <cbmem.h>
-#include <device/pci.h>
+#include <stdint.h>
 #include <stage_cache.h>
 #include <cpu/intel/smm/gen1/smi.h>
-#include "pineview.h"
 
 void stage_cache_external_region(void **base, size_t *size)
 {
diff --git a/src/northbridge/intel/x4x/stage_cache.c b/src/northbridge/intel/x4x/stage_cache.c
index 8862c61db0..47f08c1397 100644
--- a/src/northbridge/intel/x4x/stage_cache.c
+++ b/src/northbridge/intel/x4x/stage_cache.c
@@ -13,11 +13,9 @@
  * GNU General Public License for more details.
  */
 
-#include <cbmem.h>
-#include <device/pci.h>
+#include <stdint.h>
 #include <stage_cache.h>
 #include <cpu/intel/smm/gen1/smi.h>
-#include "x4x.h"
 
 void stage_cache_external_region(void **base, size_t *size)
 {