diff --git a/include/asm-powerpc/mmu-40x.h b/include/asm-powerpc/mmu-40x.h
index 7d37f77043ac..3d108676584c 100644
--- a/include/asm-powerpc/mmu-40x.h
+++ b/include/asm-powerpc/mmu-40x.h
@@ -53,8 +53,6 @@
 
 #ifndef __ASSEMBLY__
 
-typedef unsigned long phys_addr_t;
-
 typedef struct {
 	unsigned long id;
 	unsigned long vdso_base;
diff --git a/include/asm-powerpc/mmu-44x.h b/include/asm-powerpc/mmu-44x.h
index 62772ae839ca..c8b02d97f753 100644
--- a/include/asm-powerpc/mmu-44x.h
+++ b/include/asm-powerpc/mmu-44x.h
@@ -53,8 +53,6 @@
 
 #ifndef __ASSEMBLY__
 
-typedef unsigned long long phys_addr_t;
-
 typedef struct {
 	unsigned long id;
 	unsigned long vdso_base;
diff --git a/include/asm-powerpc/mmu-8xx.h b/include/asm-powerpc/mmu-8xx.h
index 952bd8899f2f..9db877eb88db 100644
--- a/include/asm-powerpc/mmu-8xx.h
+++ b/include/asm-powerpc/mmu-8xx.h
@@ -136,8 +136,6 @@
 #define SPRN_M_TW	799
 
 #ifndef __ASSEMBLY__
-typedef unsigned long phys_addr_t;
-
 typedef struct {
 	unsigned long id;
 	unsigned long vdso_base;
diff --git a/include/asm-powerpc/mmu-fsl-booke.h b/include/asm-powerpc/mmu-fsl-booke.h
index 37580004cd7a..925d93cf64d8 100644
--- a/include/asm-powerpc/mmu-fsl-booke.h
+++ b/include/asm-powerpc/mmu-fsl-booke.h
@@ -73,12 +73,6 @@
 
 #ifndef __ASSEMBLY__
 
-#ifndef CONFIG_PHYS_64BIT
-typedef unsigned long phys_addr_t;
-#else
-typedef unsigned long long phys_addr_t;
-#endif
-
 typedef struct {
 	unsigned long id;
 	unsigned long vdso_base;
diff --git a/include/asm-powerpc/mmu-hash32.h b/include/asm-powerpc/mmu-hash32.h
index 4bd735be3833..6e21ca618ec3 100644
--- a/include/asm-powerpc/mmu-hash32.h
+++ b/include/asm-powerpc/mmu-hash32.h
@@ -84,8 +84,6 @@ typedef struct {
 	unsigned long vdso_base;
 } mm_context_t;
 
-typedef unsigned long phys_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_MMU_HASH32_H_ */
diff --git a/include/asm-powerpc/mmu-hash64.h b/include/asm-powerpc/mmu-hash64.h
index 2864fa3989ea..0dff76776044 100644
--- a/include/asm-powerpc/mmu-hash64.h
+++ b/include/asm-powerpc/mmu-hash64.h
@@ -469,9 +469,6 @@ static inline unsigned long get_vsid(unsigned long context, unsigned long ea,
 				 VSID_MODULUS_256M)
 #define KERNEL_VSID(ea)		VSID_SCRAMBLE(GET_ESID(ea))
 
-/* Physical address used by some IO functions */
-typedef unsigned long phys_addr_t;
-
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_MMU_HASH64_H_ */
diff --git a/include/asm-powerpc/types.h b/include/asm-powerpc/types.h
index 903fd1932436..c243a6ac60e5 100644
--- a/include/asm-powerpc/types.h
+++ b/include/asm-powerpc/types.h
@@ -84,6 +84,13 @@ typedef unsigned long long u64;
 
 typedef __vector128 vector128;
 
+/* Physical address used by some IO functions */
+#if defined(CONFIG_PPC64) || defined(CONFIG_PHYS_64BIT)
+typedef u64 phys_addr_t;
+#else
+typedef u32 phys_addr_t;
+#endif
+
 #ifdef __powerpc64__
 typedef u64 dma_addr_t;
 #else