From 48ff3e04ffd5e1b578462eb1958f15ca122c7fbf Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 28 Sep 2009 15:04:04 +0900 Subject: [PATCH] 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 --- arch/sh/kernel/io_generic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/sh/kernel/io_generic.c b/arch/sh/kernel/io_generic.c index 4ff507239286..b8fa6524760a 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); }