microblaze: Use asm-generic/io.h

Convert the microblaze architecture to make use of the new
asm-generic/io.h to provide address mapping functions. As the generic
implementations are suitable for microblaze this is primarily a matter
of removing code.

Feedback from architecture maintainers is welcome.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>

diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 584cbce358c5aedeff87fb780bf5f9c4b99e95ed..c7516a47e8ca696e81f707f4bc903cfade14cc30 100644 (file)
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -131,33 +131,6 @@ static inline void sync(void)
 {
 }
 
-/*
- * 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 /* __MICROBLAZE_IO_H__ */