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-rw-r--r--include/asm-sh/addrspace.h6
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 */