sh: Handle ioport_map() cases for >= P1SEG addresses.

This fixes up the case where certain drivers already do their own
remapping and subsequently attempt to use the PIO calls for I/O. In this
case there is no additional remapping that needs to be done, and the
address can be casted in to the cookie directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-09-28 15:04:04 +09:00
parent 17d857be64
commit 48ff3e04ff

View file

@ -147,6 +147,9 @@ void generic_outsl(unsigned long port, const void *src, unsigned long count)
void __iomem *generic_ioport_map(unsigned long addr, unsigned int size)
{
if (PXSEG(addr) >= P1SEG)
return (void __iomem *)addr;
return (void __iomem *)(addr + generic_io_base);
}