diff --git a/arch/powerpc/mm/imalloc.c b/arch/powerpc/mm/imalloc.c
index f4ca29cf536..f9587bcc6a4 100644
--- a/arch/powerpc/mm/imalloc.c
+++ b/arch/powerpc/mm/imalloc.c
@@ -14,9 +14,10 @@
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/semaphore.h>
-#include <asm/imalloc.h>
 #include <asm/cacheflush.h>
 
+#include "mmu_decl.h"
+
 static DECLARE_MUTEX(imlist_sem);
 struct vm_struct * imlist = NULL;
 
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 1134f70f231..81cfb0c2ec5 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -64,7 +64,8 @@
 #include <asm/iommu.h>
 #include <asm/abs_addr.h>
 #include <asm/vdso.h>
-#include <asm/imalloc.h>
+
+#include "mmu_decl.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) printk(fmt)
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index a4d7a327c0e..bea2d21ac6f 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -33,7 +33,6 @@ extern void invalidate_tlbcam_entry(int index);
 
 extern int __map_without_bats;
 extern unsigned long ioremap_base;
-extern unsigned long ioremap_bot;
 extern unsigned int rtas_data, rtas_size;
 
 extern PTE *Hash, *Hash_end;
@@ -42,6 +41,7 @@ extern unsigned long Hash_size, Hash_mask;
 extern unsigned int num_tlbcam_entries;
 #endif
 
+extern unsigned long ioremap_bot;
 extern unsigned long __max_low_memory;
 extern unsigned long __initial_memory_limit;
 extern unsigned long total_memory;
@@ -84,4 +84,16 @@ static inline void flush_HPTE(unsigned context, unsigned long va,
 	else
 		_tlbie(va);
 }
+#else /* CONFIG_PPC64 */
+/* imalloc region types */
+#define IM_REGION_UNUSED	0x1
+#define IM_REGION_SUBSET	0x2
+#define IM_REGION_EXISTS	0x4
+#define IM_REGION_OVERLAP	0x8
+#define IM_REGION_SUPERSET	0x10
+
+extern struct vm_struct * im_get_free_area(unsigned long size);
+extern struct vm_struct * im_get_area(unsigned long v_addr, unsigned long size,
+				      int region_type);
+extern void im_free(void *addr);
 #endif
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index c7f7bb6f30b..2ffca63602c 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -64,7 +64,8 @@
 #include <asm/iommu.h>
 #include <asm/abs_addr.h>
 #include <asm/vdso.h>
-#include <asm/imalloc.h>
+
+#include "mmu_decl.h"
 
 unsigned long ioremap_bot = IMALLOC_BASE;
 static unsigned long phbs_io_bot = PHBS_IO_BASE;
diff --git a/include/asm-ppc64/imalloc.h b/include/asm-ppc64/imalloc.h
deleted file mode 100644
index 42adf7033a8..00000000000
--- a/include/asm-ppc64/imalloc.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef _PPC64_IMALLOC_H
-#define _PPC64_IMALLOC_H
-
-/*
- * Define the address range of the imalloc VM area.
- */
-#define PHBS_IO_BASE  	  VMALLOC_END
-#define IMALLOC_BASE      (PHBS_IO_BASE + 0x80000000ul)	/* Reserve 2 gigs for PHBs */
-#define IMALLOC_END       (VMALLOC_START + PGTABLE_RANGE)
-
-
-/* imalloc region types */
-#define IM_REGION_UNUSED	0x1
-#define IM_REGION_SUBSET	0x2
-#define IM_REGION_EXISTS	0x4
-#define IM_REGION_OVERLAP	0x8
-#define IM_REGION_SUPERSET	0x10
-
-extern struct vm_struct * im_get_free_area(unsigned long size);
-extern struct vm_struct * im_get_area(unsigned long v_addr, unsigned long size,
-				      int region_type);
-extern void im_free(void *addr);
-
-extern unsigned long ioremap_bot;
-
-#endif /* _PPC64_IMALLOC_H */
diff --git a/include/asm-ppc64/pgtable.h b/include/asm-ppc64/pgtable.h
index a9783ba7fe9..dee36c83be1 100644
--- a/include/asm-ppc64/pgtable.h
+++ b/include/asm-ppc64/pgtable.h
@@ -46,6 +46,13 @@ struct mm_struct;
 #define VMALLOC_SIZE  (0x80000000000UL)
 #define VMALLOC_END   (VMALLOC_START + VMALLOC_SIZE)
 
+/*
+ * Define the address range of the imalloc VM area.
+ */
+#define PHBS_IO_BASE	VMALLOC_END
+#define IMALLOC_BASE	(PHBS_IO_BASE + 0x80000000ul)	/* Reserve 2 gigs for PHBs */
+#define IMALLOC_END	(VMALLOC_START + PGTABLE_RANGE)
+
 /*
  * Common bits in a linux-style PTE.  These match the bits in the
  * (hardware-defined) PowerPC PTE as closely as possible. Additional