diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-09-28 15:04:04 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-09-28 15:04:04 +0900 |
| commit | 48ff3e04ffd5e1b578462eb1958f15ca122c7fbf (patch) | |
| tree | 378fdbbbb81699f2c5cf2d57e187c7f7b9843fa5 | |
| parent | 17d857be649a21ca90008c6dc425d849fa83db5c (diff) | |
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>
| -rw-r--r-- | arch/sh/kernel/io_generic.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sh/kernel/io_generic.c b/arch/sh/kernel/io_generic.c index 4ff50723928..b8fa6524760 100644 --- a/arch/sh/kernel/io_generic.c +++ b/arch/sh/kernel/io_generic.c @@ -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); } |