1 files changed, 3 insertions, 1 deletions

diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index 9c4527eb55e2..eeb3088a1c9e 100644
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -22,9 +22,11 @@ extern unsigned int pcibios_assign_all_busses(void);
 extern int no_iommu, force_iommu;
 
 extern unsigned long pci_mem_start;
-#define PCIBIOS_MIN_IO          0x4000
+#define PCIBIOS_MIN_IO          0x1000
 #define PCIBIOS_MIN_MEM         (pci_mem_start)
 
+#define PCIBIOS_MIN_CARDBUS_IO  0x4000
+
 void pcibios_config_init(void);
 struct pci_bus * pcibios_scan_root(int bus);
 extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value);