diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c
index b32d579..6f5b9f8 100644
--- a/arch/x86_64/kernel/pci-calgary.c
+++ b/arch/x86_64/kernel/pci-calgary.c
@@ -52,11 +52,6 @@
 #define PCI_DEVICE_ID_IBM_CALGARY 0x02a1
 #define PCI_DEVICE_ID_IBM_CALIOC2 0x0308
 
-/* we need these for register space address calculation */
-#define START_ADDRESS           0xfe000000
-#define CHASSIS_BASE            0
-#define ONE_BASED_CHASSIS_NUM   1
-
 /* register offsets inside the host bridge space */
 #define CALGARY_CONFIG_REG	0x0108
 #define PHB_CSR_OFFSET		0x0110 /* Channel Status */