diff --git a/include/asm-arm/arch-aaec2000/io.h b/include/asm-arm/arch-aaec2000/io.h
index 8d67907fd4f05815733d9bd93fb5ae54f9399f3b..d710204ac7479607c4899cf32722e7786b8c86ae 100644
--- a/include/asm-arm/arch-aaec2000/io.h
+++ b/include/asm-arm/arch-aaec2000/io.h
@@ -16,6 +16,5 @@
  */
 #define __io(a)			((void __iomem *)(a))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif
diff --git a/include/asm-arm/arch-clps711x/io.h b/include/asm-arm/arch-clps711x/io.h
index 62613b0e2d9604dd0f6a919d6e7e47fa2aa05401..53d790202c1900e507e3e236f541f38f23379450 100644
--- a/include/asm-arm/arch-clps711x/io.h
+++ b/include/asm-arm/arch-clps711x/io.h
@@ -26,7 +26,6 @@
 
 #define __io(a)			((void __iomem *)(a))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 /*
  * We don't support ins[lb]/outs[lb].  Make them fault.
diff --git a/include/asm-arm/arch-ebsa285/io.h b/include/asm-arm/arch-ebsa285/io.h
index 776f9d377057d002082257902721e3f3d52f6cf0..f9c7291418600e6ba59c8078eecc347a87780fbd 100644
--- a/include/asm-arm/arch-ebsa285/io.h
+++ b/include/asm-arm/arch-ebsa285/io.h
@@ -24,7 +24,6 @@
 #define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
 #if 1
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		((a) + PCIMEM_BASE)
 #else
 
 static inline void __iomem *___mem_pci(void __iomem *p)
@@ -34,14 +33,7 @@ static inline void __iomem *___mem_pci(void __iomem *p)
 	return p;
 }
 
-static inline void __iomem *___mem_isa(void __iomem *p)
-{
-	unsigned long a = (unsigned long)p;
-	BUG_ON(a >= 16*1048576);
-	return p + PCIMEM_BASE;
-}
 #define __mem_pci(a)		___mem_pci(a)
-#define __mem_isa(a)		___mem_isa(a)
 #endif
 
 #endif
diff --git a/include/asm-arm/arch-integrator/io.h b/include/asm-arm/arch-integrator/io.h
index 31f2deab51b0d54d3cd8f891b0a56da01f0d3e34..c8f2175948bd8d1a6e10e65790a5cd2b865e2de4 100644
--- a/include/asm-arm/arch-integrator/io.h
+++ b/include/asm-arm/arch-integrator/io.h
@@ -32,6 +32,5 @@
 
 #define __io(a)			((void __iomem *)(PCI_IO_VADDR + (a)))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		((a) + PCI_MEMORY_VADDR)
 
 #endif
diff --git a/include/asm-arm/arch-iop3xx/io.h b/include/asm-arm/arch-iop3xx/io.h
index f39046a6ab141decf904c44316ce10000be2f37f..36adbdf5055a571898184cdc540f64f3ac061dd0 100644
--- a/include/asm-arm/arch-iop3xx/io.h
+++ b/include/asm-arm/arch-iop3xx/io.h
@@ -17,6 +17,5 @@
 
 #define __io(p)			((void __iomem *)(p))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif
diff --git a/include/asm-arm/arch-l7200/io.h b/include/asm-arm/arch-l7200/io.h
index cab8ad0adf09e3dcb60176b93aa1ef7c2ff7c720..cd080d8384d9232135a68802facdea5dca5a3783 100644
--- a/include/asm-arm/arch-l7200/io.h
+++ b/include/asm-arm/arch-l7200/io.h
@@ -19,7 +19,6 @@
  */
 #define __io_pci(a)		((void __iomem *)(PCIO_BASE + (a)))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #define __ioaddr(p)             __io_pci(p)
 
diff --git a/include/asm-arm/arch-lh7a40x/io.h b/include/asm-arm/arch-lh7a40x/io.h
index bbcd4335f44196ea518d6c484a8c0254531cd91b..17bc9409748137dd6eabadad84a2b235f19d56b2 100644
--- a/include/asm-arm/arch-lh7a40x/io.h
+++ b/include/asm-arm/arch-lh7a40x/io.h
@@ -18,6 +18,5 @@
 /* No ISA or PCI bus on this machine. */
 #define __io(a)			((void __iomem *)(a))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif /* __ASM_ARCH_IO_H */
diff --git a/include/asm-arm/arch-netx/io.h b/include/asm-arm/arch-netx/io.h
index 81b7bc47747e0d916afcd9bbc902aae258178393..a7a53f80165d31fa33f3022eb431f3239389f410 100644
--- a/include/asm-arm/arch-netx/io.h
+++ b/include/asm-arm/arch-netx/io.h
@@ -24,6 +24,5 @@
 
 #define __io(a)         ((void __iomem *)(a))
 #define __mem_pci(a)            (a)
-#define __mem_isa(a)            (a)
 
 #endif
diff --git a/include/asm-arm/arch-omap/io.h b/include/asm-arm/arch-omap/io.h
index b726acfcab14b5a522941097a975108d1903232d..78f68e6a4f0c59a24407cd7fbe8c905dea0b97ec 100644
--- a/include/asm-arm/arch-omap/io.h
+++ b/include/asm-arm/arch-omap/io.h
@@ -44,7 +44,6 @@
  */
 #define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 /*
  * ----------------------------------------------------------------------------
diff --git a/include/asm-arm/arch-pxa/io.h b/include/asm-arm/arch-pxa/io.h
index eb2dd58d397fa187690093a618afcf49c83f7221..7f8d817b446f8daf404c74674446ec0748675a05 100644
--- a/include/asm-arm/arch-pxa/io.h
+++ b/include/asm-arm/arch-pxa/io.h
@@ -16,6 +16,5 @@
  */
 #define __io(a)			((void __iomem *)(a))
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif
diff --git a/include/asm-arm/arch-realview/io.h b/include/asm-arm/arch-realview/io.h
index d444a68ac33065cae4d710ff1971fe20a051741a..c70f1dfbe1354e74552a3e41c09debbf5af5b3ab 100644
--- a/include/asm-arm/arch-realview/io.h
+++ b/include/asm-arm/arch-realview/io.h
@@ -29,6 +29,5 @@ static inline void __iomem *__io(unsigned long addr)
 
 #define __io(a)			__io(a)
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif
diff --git a/include/asm-arm/arch-sa1100/io.h b/include/asm-arm/arch-sa1100/io.h
index 040ccde7a11ec8f0bafa8a7481944660fd02014c..0756269404b18085bd8c25d61a091f0697983e17 100644
--- a/include/asm-arm/arch-sa1100/io.h
+++ b/include/asm-arm/arch-sa1100/io.h
@@ -22,6 +22,5 @@ static inline void __iomem *__io(unsigned long addr)
 }
 #define __io(a)			__io(a)
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif
diff --git a/include/asm-arm/arch-versatile/io.h b/include/asm-arm/arch-versatile/io.h
index 47e904cf25c748b6f19fca6e7b9ab70c9aa3ded3..c4d01948e00bccd8a25ac33693c50c9910d67e29 100644
--- a/include/asm-arm/arch-versatile/io.h
+++ b/include/asm-arm/arch-versatile/io.h
@@ -28,6 +28,5 @@ static inline void __iomem *__io(unsigned long addr)
 }
 #define __io(a)	__io(a)
 #define __mem_pci(a)		(a)
-#define __mem_isa(a)		(a)
 
 #endif