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sh: Use asm-generic/io.h

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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>
This commit is contained in:
Paul Burton 2017-09-14 15:05:07 -07:00 committed by Tom Rini
parent b3666a693a
commit 505fe9cdd0
1 changed files with 1 additions and 28 deletions
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29
arch/sh/include/asm/io.h
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@ -231,34 +231,7 @@ static inline void sync(void)
#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 */