mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 02:09:42 +00:00
37b7a97884
This takes a bit of a sledgehammer to the machvec I/O routines. The iomem case requires no special casing and so can just be dropped outright. This only leaves the ioport casing for PCI and SuperIO mangling. With the SuperIO case going through the standard ioport mapping, it's possible to replace everything with generic routines. With this done the standard I/O routines are tidied up and NO_IOPORT now gets default-enabled for the vast majority of boards. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
43 lines
987 B
C
43 lines
987 B
C
/*
|
|
* arch/sh/kernel/ioport.c
|
|
*
|
|
* Copyright (C) 2000 Niibe Yutaka
|
|
* Copyright (C) 2005 - 2007 Paul Mundt
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/io.h>
|
|
|
|
const unsigned long sh_io_port_base __read_mostly = -1;
|
|
EXPORT_SYMBOL(sh_io_port_base);
|
|
|
|
void __iomem *__ioport_map(unsigned long addr, unsigned int size)
|
|
{
|
|
if (sh_mv.mv_ioport_map)
|
|
return sh_mv.mv_ioport_map(addr, size);
|
|
|
|
return (void __iomem *)(addr + sh_io_port_base);
|
|
}
|
|
EXPORT_SYMBOL(__ioport_map);
|
|
|
|
void __iomem *ioport_map(unsigned long port, unsigned int nr)
|
|
{
|
|
void __iomem *ret;
|
|
|
|
ret = __ioport_map_trapped(port, nr);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return __ioport_map(port, nr);
|
|
}
|
|
EXPORT_SYMBOL(ioport_map);
|
|
|
|
void ioport_unmap(void __iomem *addr)
|
|
{
|
|
if (sh_mv.mv_ioport_unmap)
|
|
sh_mv.mv_ioport_unmap(addr);
|
|
}
|
|
EXPORT_SYMBOL(ioport_unmap);
|