diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 5dc27be..5cb000c 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -68,13 +68,6 @@
 #define __raw_base_readl(base, off)	__arch_base_getl(base, off)
 
 /*
- * Now, pick up the machine-defined IO definitions
- */
-#if 0	/* XXX###XXX */
-#include <asm/arch/io.h>
-#endif	/* XXX###XXX */
-
-/*
  *  IO port access primitives
  *  -------------------------
  *
@@ -82,9 +75,6 @@
  * mapped.  Note that these are defined to perform little endian accesses
  * only.  Their primary purpose is to access PCI and ISA peripherals.
  *
- * The machine specific io.h include defines __io to translate an "IO"
- * address to a memory address.
- *
  * Note that we prevent GCC re-ordering or caching values in expressions
  * by introducing sequence points into the in*() definitions.  Note that
  * __raw_* do not guarantee this behaviour.
diff --git a/include/configs/r2dplus.h b/include/configs/r2dplus.h
index 477f035..2186915 100644
--- a/include/configs/r2dplus.h
+++ b/include/configs/r2dplus.h
@@ -91,7 +91,6 @@
 #define CONFIG_SH4_PCI
 #define CONFIG_SH7751_PCI
 #define CONFIG_PCI_SCAN_SHOW	1
-#define __io
 #define __mem_pci
 
 #define CONFIG_PCI_MEM_BUS	0xFD000000	/* Memory space base addr */
diff --git a/include/configs/r7780mp.h b/include/configs/r7780mp.h
index d4f200a..42d5135 100644
--- a/include/configs/r7780mp.h
+++ b/include/configs/r7780mp.h
@@ -100,7 +100,6 @@
 #define CONFIG_SH7780_PCI_LAR	CONFIG_SYS_SDRAM_SIZE
 #define CONFIG_SH7780_PCI_BAR	CONFIG_SYS_SDRAM_SIZE
 #define CONFIG_PCI_SCAN_SHOW	1
-#define __io
 #define __mem_pci
 
 #define CONFIG_PCI_MEM_BUS	0xFD000000	/* Memory space base addr */