diff --git a/src/include/memory_info.h b/src/include/memory_info.h
index d9d9c37733..1ba73291a8 100644
--- a/src/include/memory_info.h
+++ b/src/include/memory_info.h
@@ -108,4 +108,10 @@ struct memory_info {
 	struct dimm_info dimm[DIMM_INFO_TOTAL];
 } __packed;
 
+/*
+ * mainboard_get_dram_part_num returns a DRAM part number override string
+ *  return NULL = no part number override provided by mainboard
+ *  return non-NULL = pointer to a string terminating in '\0'
+ */
+const char *mainboard_get_dram_part_num(void);
 #endif
diff --git a/src/soc/intel/alderlake/include/soc/romstage.h b/src/soc/intel/alderlake/include/soc/romstage.h
index 55469a326b..c72c8aa4f8 100644
--- a/src/soc/intel/alderlake/include/soc/romstage.h
+++ b/src/soc/intel/alderlake/include/soc/romstage.h
@@ -6,8 +6,6 @@
 #include <fsp/api.h>
 #include <stddef.h>
 
-/* Provide a callback to allow mainboard to override the DRAM part number. */
-const char *mainboard_get_dram_part_num(void);
 void mainboard_memory_init_params(FSPM_UPD *mupd);
 void systemagent_early_init(void);
 void romstage_pch_init(void);
diff --git a/src/soc/intel/cannonlake/include/soc/romstage.h b/src/soc/intel/cannonlake/include/soc/romstage.h
index f99175f769..ae9aa6074b 100644
--- a/src/soc/intel/cannonlake/include/soc/romstage.h
+++ b/src/soc/intel/cannonlake/include/soc/romstage.h
@@ -7,8 +7,6 @@
 
 void mainboard_memory_init_params(FSPM_UPD *mupd);
 
-/* Provide a callback to allow mainboard to override the DRAM part number. */
-const char *mainboard_get_dram_part_num(void);
 void systemagent_early_init(void);
 void romstage_pch_init(void);
 
diff --git a/src/soc/intel/elkhartlake/include/soc/romstage.h b/src/soc/intel/elkhartlake/include/soc/romstage.h
index 1cffcb93ae..3772db4bc1 100644
--- a/src/soc/intel/elkhartlake/include/soc/romstage.h
+++ b/src/soc/intel/elkhartlake/include/soc/romstage.h
@@ -5,8 +5,6 @@
 
 #include <fsp/api.h>
 
-/* Provide a callback to allow mainboard to override the DRAM part number. */
-const char *mainboard_get_dram_part_num(void);
 void mainboard_memory_init_params(FSPM_UPD *mupd);
 void systemagent_early_init(void);
 void romstage_pch_init(void);
diff --git a/src/soc/intel/jasperlake/include/soc/romstage.h b/src/soc/intel/jasperlake/include/soc/romstage.h
index 1cffcb93ae..3772db4bc1 100644
--- a/src/soc/intel/jasperlake/include/soc/romstage.h
+++ b/src/soc/intel/jasperlake/include/soc/romstage.h
@@ -5,8 +5,6 @@
 
 #include <fsp/api.h>
 
-/* Provide a callback to allow mainboard to override the DRAM part number. */
-const char *mainboard_get_dram_part_num(void);
 void mainboard_memory_init_params(FSPM_UPD *mupd);
 void systemagent_early_init(void);
 void romstage_pch_init(void);
diff --git a/src/soc/intel/tigerlake/include/soc/romstage.h b/src/soc/intel/tigerlake/include/soc/romstage.h
index 1cffcb93ae..3772db4bc1 100644
--- a/src/soc/intel/tigerlake/include/soc/romstage.h
+++ b/src/soc/intel/tigerlake/include/soc/romstage.h
@@ -5,8 +5,6 @@
 
 #include <fsp/api.h>
 
-/* Provide a callback to allow mainboard to override the DRAM part number. */
-const char *mainboard_get_dram_part_num(void);
 void mainboard_memory_init_params(FSPM_UPD *mupd);
 void systemagent_early_init(void);
 void romstage_pch_init(void);