diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 7110e54..6fb1258 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -26,6 +26,7 @@
 #include <linux/vmalloc.h>
 
 #include <asm/cacheflush.h>
+#include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/tlbflush.h>
 
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index 8dcaa35..9133351 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -21,6 +21,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/concat.h>
 
+#include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/sizes.h>
 #include <asm/mach/flash.h>
diff --git a/include/asm-arm/arch-sa1100/hardware.h b/include/asm-arm/arch-sa1100/hardware.h
index 19c3b1e..28711aa 100644
--- a/include/asm-arm/arch-sa1100/hardware.h
+++ b/include/asm-arm/arch-sa1100/hardware.h
@@ -22,13 +22,6 @@
 
 
 /*
- * We requires absolute addresses i.e. (PCMCIA_IO_0_BASE + 0x3f8) for 
- * in*()/out*() macros to be usable for all cases.
- */
-#define PCIO_BASE		0
-
-
-/*
  * SA1100 internal I/O mappings
  *
  * We have the following mapping:
diff --git a/include/asm-arm/arch-sa1100/io.h b/include/asm-arm/arch-sa1100/io.h
index 9c8f588..9d4fe6c 100644
--- a/include/asm-arm/arch-sa1100/io.h
+++ b/include/asm-arm/arch-sa1100/io.h
@@ -18,7 +18,11 @@
  * We don't actually have real ISA nor PCI buses, but there is so many 
  * drivers out there that might just work if we fake them...
  */
-#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
+static inline void __iomem *__io(unsigned long addr)
+{
+	return (void __iomem *)addr;
+}
+#define __io(a)			__io(a)
 #define __mem_pci(a)		(a)
 #define __mem_isa(a)		(a)
 
diff --git a/include/asm-arm/arch-sa1100/system.h b/include/asm-arm/arch-sa1100/system.h
index 6f52118..0f0612f 100644
--- a/include/asm-arm/arch-sa1100/system.h
+++ b/include/asm-arm/arch-sa1100/system.h
@@ -4,6 +4,7 @@
  * Copyright (c) 1999 Nicolas Pitre <nico@cam.org>
  */
 #include <linux/config.h>
+#include <asm/hardware.h>
 
 static inline void arch_idle(void)
 {