diff --git a/src/mainboard/amd/persimmon/dsdt.asl b/src/mainboard/amd/persimmon/dsdt.asl
index 6a523cd444..c7ceb02f2c 100644
--- a/src/mainboard/amd/persimmon/dsdt.asl
+++ b/src/mainboard/amd/persimmon/dsdt.asl
@@ -36,7 +36,7 @@ DefinitionBlock (
 	Name(PBAD, 0x0)	/* Address of BIOS area (If TOM2 != 0, Addr >> 16) */
 	Name(PBLN, 0x0)	/* Length of BIOS area */
 
-	Name(PCBA, 0xF8000000)	/* Base address of PCIe config space */
+	Name(PCBA, CONFIG_MMCONF_BASE_ADDRESS)	/* Base address of PCIe config space */
 	Name(HPBA, 0xFED00000)	/* Base address of HPET table */
 
 	Name(SSFG, 0x0D)		/* S1 support: bit 0, S2 Support: bit 1, etc. S0 & S5 assumed */
diff --git a/src/vendorcode/amd/cimx/sb800/OEM.h b/src/vendorcode/amd/cimx/sb800/OEM.h
index 6a79f325a1..6ca4271c1a 100644
--- a/src/vendorcode/amd/cimx/sb800/OEM.h
+++ b/src/vendorcode/amd/cimx/sb800/OEM.h
@@ -48,7 +48,7 @@
 #ifdef  MOVE_PCIEBAR_TO_F0000000
   #define PCIEX_BASE_ADDRESS           0xF7000000
 #else
-  #define PCIEX_BASE_ADDRESS           0xF8000000
+  #define PCIEX_BASE_ADDRESS           CONFIG_MMCONF_BASE_ADDRESS
 #endif
 
 /**