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nommu: add ioremap_page_range() 

lib/ioremap.c is presently only built in if CONFIG_MMU is set.  While this
is reasonable, platforms that support both CONFIG_MMU=y or n need to be
able to call in to this regardless.

As none of the current nommu platforms do anything special with ioremap(),
we assume that it's always successful.

This fixes the SH-4 build with CONFIG_MMU=n.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Paul Mundt 2007-05-15 01:41:02 -07:00 committed by Linus Torvalds
parent f0ee9aabb0
commit 218f0aaee8
1 changed files with 8 additions and 0 deletions
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8
include/linux/io.h
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@ -27,8 +27,16 @@ struct device;
void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
#ifdef CONFIG_MMU
int ioremap_page_range(unsigned long addr, unsigned long end,
unsigned long phys_addr, pgprot_t prot);
#else
static inline int ioremap_page_range(unsigned long addr, unsigned long end,
unsigned long phys_addr, pgprot_t prot)
{
return 0;
}
#endif
/*
* Managed iomap interface