sh: Use asm-generic/io.h
Convert the sh architecture to make use of the new asm-generic/io.h to
provide address mapping functions. As the generic implementations are
suitable for sh this is primarily a matter of moving code.
Feedback from architecture maintainers is welcome.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 5cb000c..be1ff4a 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -231,34 +231,7 @@
#define setbits_8(addr, set) setbits(8, addr, set)
#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
-/*
- * Given a physical address and a length, return a virtual address
- * that can be used to access the memory range with the caching
- * properties specified by "flags".
- */
-#define MAP_NOCACHE (0)
-#define MAP_WRCOMBINE (0)
-#define MAP_WRBACK (0)
-#define MAP_WRTHROUGH (0)
-
-static inline void *
-map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
-{
- return (void *)paddr;
-}
-
-/*
- * Take down a mapping set up by map_physmem().
- */
-static inline void unmap_physmem(void *vaddr, unsigned long flags)
-{
-
-}
-
-static inline phys_addr_t virt_to_phys(void *vaddr)
-{
- return (phys_addr_t)(vaddr);
-}
+#include <asm-generic/io.h>
#endif /* __KERNEL__ */
#endif /* __ASM_SH_IO_H */