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x86: Use asm-generic/io.h
Convert the x86 architecture to make use of the new asm-generic/io.h to provide address mapping functions. As the generic implementations are suitable for x86 this is primarily a matter of moving code. This has only been build-tested, feedback from architecture maintainers is welcome. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
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1 changed files with 2 additions and 29 deletions
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@ -230,35 +230,6 @@ static inline void sync(void)
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{
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}
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/*
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* Given a physical address and a length, return a virtual address
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* that can be used to access the memory range with the caching
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* properties specified by "flags".
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*/
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#define MAP_NOCACHE (0)
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#define MAP_WRCOMBINE (0)
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#define MAP_WRBACK (0)
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#define MAP_WRTHROUGH (0)
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static inline void *
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map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
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{
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return (void *)(uintptr_t)paddr;
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}
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/*
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* Take down a mapping set up by map_physmem().
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*/
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static inline void unmap_physmem(void *vaddr, unsigned long flags)
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{
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}
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static inline phys_addr_t virt_to_phys(void * vaddr)
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{
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return (phys_addr_t)(uintptr_t)(vaddr);
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}
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/*
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* TODO: The kernel offers some more advanced versions of barriers, it might
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* have some advantages to use them instead of the simple one here.
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@ -267,4 +238,6 @@ static inline phys_addr_t virt_to_phys(void * vaddr)
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#define __iormb() dmb()
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#define __iowmb() dmb()
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#include <asm-generic/io.h>
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#endif /* _ASM_IO_H */
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