Paul Mundt | 37b7a97 | 2010-11-01 09:49:04 -0400 | [diff] [blame] | 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 | |
Andi Kleen | 666e81f | 2012-10-04 17:11:41 -0700 | [diff] [blame^] | 14 | unsigned long sh_io_port_base __read_mostly = -1; |
Paul Mundt | 37b7a97 | 2010-11-01 09:49:04 -0400 | [diff] [blame] | 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); |