Convert the nds32 architecture to make use of the new asm-generic/io.h to provide address mapping functions. As the generic implementations are suitable for nds32 this is primarily a matter of removing code.
Feedback from architecture maintainers is welcome.
Signed-off-by: Paul Burton paul.burton@imgtec.com Cc: Macpaul Lin macpaul@andestech.com ---
arch/nds32/include/asm/io.h | 32 +++----------------------------- 1 file changed, 3 insertions(+), 29 deletions(-)
diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h index b2c4d0e..46ce8c4 100644 --- a/arch/nds32/include/asm/io.h +++ b/arch/nds32/include/asm/io.h @@ -39,35 +39,6 @@ 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); -} - -/* * Generic virtual read/write. Note that we don't support half-word * read/writes. We define __arch_*[bl] here, and leave __arch_*w * to the architecture specific code. @@ -459,5 +430,8 @@ out: #define isa_check_signature(io, sig, len) (0)
#endif /* __mem_isa */ + +#include <asm-generic/io.h> + #endif /* __KERNEL__ */ #endif /* __ASM_NDS_IO_H */