2 * linux/arch/sh/kernel/io.c
4 * Copyright (C) 2000 Stuart Menefy
5 * Copyright (C) 2005 Paul Mundt
7 * Provide real functions which expand to whatever the header file defined.
8 * Also definitions of machine independent IO functions.
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file "COPYING" in the main directory of this archive
14 #include <linux/module.h>
15 #include <linux/pci.h>
16 #include <asm/machvec.h>
20 * Copy data from IO memory space to "real" memory space.
21 * This needs to be optimized.
23 void memcpy_fromio(void *to, const volatile void __iomem *from, unsigned long count)
25 unsigned char *p = to;
33 EXPORT_SYMBOL(memcpy_fromio);
36 * Copy data from "real" memory space to IO memory space.
37 * This needs to be optimized.
39 void memcpy_toio(volatile void __iomem *to, const void *from, unsigned long count)
41 const unsigned char *p = from;
49 EXPORT_SYMBOL(memcpy_toio);
52 * "memset" on IO memory space.
53 * This needs to be optimized.
55 void memset_io(volatile void __iomem *dst, int c, unsigned long count)
63 EXPORT_SYMBOL(memset_io);
65 void __iomem *ioport_map(unsigned long port, unsigned int nr)
69 ret = __ioport_map_trapped(port, nr);
73 return __ioport_map(port, nr);
75 EXPORT_SYMBOL(ioport_map);
77 void ioport_unmap(void __iomem *addr)
79 sh_mv.mv_ioport_unmap(addr);
81 EXPORT_SYMBOL(ioport_unmap);