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sh: Allow use of GENERIC_IOMAP

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The synopsys PCI cell used in the later STMicro chips requires code to
be run in order to do IO cycles, rather than just memory mapping the IO
space. Rather than extending the existing SH infrastructure to allow
this, use the GENERIC_IOMAP implmentation to save re-inventing the
wheel.

This set of changes allows the SH to be built with GENERIC_IOMAP
enabled, it just ifdef's out the functions provided by the GENERIC_IOMAP
implementation, and provides a few required missing functions.

Signed-off-by: David McKay <david.mckay@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
David McKay
2009-08-24 16:10:40 +09:00
committed by Paul Mundt
parent 2fc742f8d6
commit 15444a8973
3 changed files with 18 additions and 0 deletions
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4
arch/sh/kernel/io.c
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@@ -62,6 +62,8 @@ void memset_io(volatile void __iomem *dst, int c, unsigned long count)
}
EXPORT_SYMBOL(memset_io);
#ifndef CONFIG_GENERIC_IOMAP
void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
void __iomem *ret;
@@ -79,3 +81,5 @@ void ioport_unmap(void __iomem *addr)
sh_mv.mv_ioport_unmap(addr);
}
EXPORT_SYMBOL(ioport_unmap);
#endif /* CONFIG_GENERIC_IOMAP */