diff --git a/include/configs/PLU405.h b/include/configs/PLU405.h
index 73a7885..7ee95df 100644
--- a/include/configs/PLU405.h
+++ b/include/configs/PLU405.h
@@ -212,7 +212,7 @@
 #define CFG_PCI_SUBSYS_DEVICEID 0x0405  /* PCI Device ID: CPCI-405      */
 #define CFG_PCI_CLASSCODE       0x0b20  /* PCI Class Code: Processor/PPC*/
 #define CFG_PCI_PTM1LA  0x00000000      /* point to sdram               */
-#define CFG_PCI_PTM1MS  0xfc000001      /* 64MB, enable hard-wired to 1 */
+#define CFG_PCI_PTM1MS  0xf8000001      /* 128MB, enable hard-wired to 1 */
 #define CFG_PCI_PTM1PCI 0x00000000      /* Host: use this pci address   */
 #define CFG_PCI_PTM2LA  0xffc00000      /* point to flash               */
 #define CFG_PCI_PTM2MS  0xffc00001      /* 4MB, enable                  */