diff --git a/include/configs/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h
index 678e1e151af6e4f95dc50fcbf013e62132b57f43..0492274d394e29324ab6596113968da18477bc7f 100644
--- a/include/configs/MPC8610HPCD.h
+++ b/include/configs/MPC8610HPCD.h
@@ -41,6 +41,7 @@
 #define CONFIG_PCIE1		1	/* PCIe 1 connected to ULI bridge */
 #define CONFIG_PCIE2		1	/* PCIe 2 connected to slot */
 #define CONFIG_FSL_PCI_INIT	1	/* Use common FSL init code */
+#define CONFIG_SYS_PCI_64BIT	1	/* enable 64-bit PCI resources */
 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
 
 #define CONFIG_ENV_OVERWRITE
diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h
index e5710c0073cd25e3a51e2a0da091a684411adca8..ceb2c694d33cdd311b78f6d0479d6cddf6659a38 100644
--- a/include/configs/MPC8641HPCN.h
+++ b/include/configs/MPC8641HPCN.h
@@ -49,6 +49,7 @@
 #define CONFIG_PCI1		1	/* PCIE controler 1 (ULI bridge) */
 #define CONFIG_PCI2		1	/* PCIE controler 2 (slot) */
 #define CONFIG_FSL_PCI_INIT	1	/* Use common FSL init code */
+#define CONFIG_SYS_PCI_64BIT	1	/* enable 64-bit PCI resources */
 #define CONFIG_FSL_LAW		1	/* Use common FSL law init code */
 
 #define CONFIG_TSEC_ENET		/* tsec ethernet support */