1 files changed, 5 insertions, 1 deletions

diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h
index e7f2deb28e06..fa544fc38c23 100644
--- a/include/asm-sh/addrspace.h
+++ b/include/asm-sh/addrspace.h
@@ -31,6 +31,7 @@
 /* Returns the physical address of a PnSEG (n=1,2) address   */
 #define PHYSADDR(a)     (((unsigned long)(a)) & 0x1fffffff)
 
+#ifdef CONFIG_29BIT
 /*
  * Map an address to a certain privileged segment
  */
@@ -42,8 +43,11 @@
         ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
 #define P4SEGADDR(a)    \
         ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))
-
+#endif /* 29BIT */
 #endif /* P1SEG */
 
+/* Check if an address can be reached in 29 bits */
+#define IS_29BIT(a)     (((unsigned long)(a)) < 0x20000000)
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_ADDRSPACE_H */