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37b7a978 PM |
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); |