--- a/arch/arm/mach-ixp4xx/include/mach/hardware.h
+++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
@@ -18,7 +18,7 @@
 #define __ASM_ARCH_HARDWARE_H__
 
 #define PCIBIOS_MIN_IO		0x00001000
-#define PCIBIOS_MIN_MEM		(cpu_is_ixp43x() ? 0x40000000 : 0x48000000)
+#define PCIBIOS_MIN_MEM		0x48000000
 
 /*
  * We override the standard dma-mask routines for bouncing.