diff options
Diffstat (limited to 'arch/sh/kernel/ioport.c')
-rw-r--r-- | arch/sh/kernel/ioport.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/sh/kernel/ioport.c b/arch/sh/kernel/ioport.c new file mode 100644 index 00000000000..e3ad6103e7c --- /dev/null +++ b/arch/sh/kernel/ioport.c | |||
@@ -0,0 +1,43 @@ | |||
1 | /* | ||
2 | * arch/sh/kernel/ioport.c | ||
3 | * | ||
4 | * Copyright (C) 2000 Niibe Yutaka | ||
5 | * Copyright (C) 2005 - 2007 Paul Mundt | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General Public | ||
8 | * License. See the file "COPYING" in the main directory of this archive | ||
9 | * for more details. | ||
10 | */ | ||
11 | #include <linux/module.h> | ||
12 | #include <linux/io.h> | ||
13 | |||
14 | const unsigned long sh_io_port_base __read_mostly = -1; | ||
15 | EXPORT_SYMBOL(sh_io_port_base); | ||
16 | |||
17 | void __iomem *__ioport_map(unsigned long addr, unsigned int size) | ||
18 | { | ||
19 | if (sh_mv.mv_ioport_map) | ||
20 | return sh_mv.mv_ioport_map(addr, size); | ||
21 | |||
22 | return (void __iomem *)(addr + sh_io_port_base); | ||
23 | } | ||
24 | EXPORT_SYMBOL(__ioport_map); | ||
25 | |||
26 | void __iomem *ioport_map(unsigned long port, unsigned int nr) | ||
27 | { | ||
28 | void __iomem *ret; | ||
29 | |||
30 | ret = __ioport_map_trapped(port, nr); | ||
31 | if (ret) | ||
32 | return ret; | ||
33 | |||
34 | return __ioport_map(port, nr); | ||
35 | } | ||
36 | EXPORT_SYMBOL(ioport_map); | ||
37 | |||
38 | void ioport_unmap(void __iomem *addr) | ||
39 | { | ||
40 | if (sh_mv.mv_ioport_unmap) | ||
41 | sh_mv.mv_ioport_unmap(addr); | ||
42 | } | ||
43 | EXPORT_SYMBOL(ioport_unmap); | ||