diff options
Diffstat (limited to 'arch/sh/kernel/io.c')
-rw-r--r-- | arch/sh/kernel/io.c | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c index d9932f25993b..71c9fde2fd90 100644 --- a/arch/sh/kernel/io.c +++ b/arch/sh/kernel/io.c | |||
@@ -2,58 +2,73 @@ | |||
2 | * linux/arch/sh/kernel/io.c | 2 | * linux/arch/sh/kernel/io.c |
3 | * | 3 | * |
4 | * Copyright (C) 2000 Stuart Menefy | 4 | * Copyright (C) 2000 Stuart Menefy |
5 | * Copyright (C) 2005 Paul Mundt | ||
5 | * | 6 | * |
6 | * Provide real functions which expand to whatever the header file defined. | 7 | * Provide real functions which expand to whatever the header file defined. |
7 | * Also definitions of machine independent IO functions. | 8 | * Also definitions of machine independent IO functions. |
9 | * | ||
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 | ||
12 | * for more details. | ||
8 | */ | 13 | */ |
9 | |||
10 | #include <asm/io.h> | ||
11 | #include <linux/module.h> | 14 | #include <linux/module.h> |
15 | #include <asm/machvec.h> | ||
16 | #include <asm/io.h> | ||
12 | 17 | ||
13 | /* | 18 | /* |
14 | * Copy data from IO memory space to "real" memory space. | 19 | * Copy data from IO memory space to "real" memory space. |
15 | * This needs to be optimized. | 20 | * This needs to be optimized. |
16 | */ | 21 | */ |
17 | void memcpy_fromio(void * to, unsigned long from, unsigned long count) | 22 | void memcpy_fromio(void *to, volatile void __iomem *from, unsigned long count) |
18 | { | 23 | { |
19 | char *p = to; | 24 | char *p = to; |
20 | while (count) { | 25 | while (count) { |
21 | count--; | 26 | count--; |
22 | *p = readb(from); | 27 | *p = readb((void __iomem *)from); |
23 | p++; | 28 | p++; |
24 | from++; | 29 | from++; |
25 | } | 30 | } |
26 | } | 31 | } |
27 | 32 | EXPORT_SYMBOL(memcpy_fromio); | |
33 | |||
28 | /* | 34 | /* |
29 | * Copy data from "real" memory space to IO memory space. | 35 | * Copy data from "real" memory space to IO memory space. |
30 | * This needs to be optimized. | 36 | * This needs to be optimized. |
31 | */ | 37 | */ |
32 | void memcpy_toio(unsigned long to, const void * from, unsigned long count) | 38 | void memcpy_toio(volatile void __iomem *to, const void *from, unsigned long count) |
33 | { | 39 | { |
34 | const char *p = from; | 40 | const char *p = from; |
35 | while (count) { | 41 | while (count) { |
36 | count--; | 42 | count--; |
37 | writeb(*p, to); | 43 | writeb(*p, (void __iomem *)to); |
38 | p++; | 44 | p++; |
39 | to++; | 45 | to++; |
40 | } | 46 | } |
41 | } | 47 | } |
42 | 48 | EXPORT_SYMBOL(memcpy_toio); | |
49 | |||
43 | /* | 50 | /* |
44 | * "memset" on IO memory space. | 51 | * "memset" on IO memory space. |
45 | * This needs to be optimized. | 52 | * This needs to be optimized. |
46 | */ | 53 | */ |
47 | void memset_io(unsigned long dst, int c, unsigned long count) | 54 | void memset_io(volatile void __iomem *dst, int c, unsigned long count) |
48 | { | 55 | { |
49 | while (count) { | 56 | while (count) { |
50 | count--; | 57 | count--; |
51 | writeb(c, dst); | 58 | writeb(c, (void __iomem *)dst); |
52 | dst++; | 59 | dst++; |
53 | } | 60 | } |
54 | } | 61 | } |
55 | |||
56 | EXPORT_SYMBOL(memcpy_fromio); | ||
57 | EXPORT_SYMBOL(memcpy_toio); | ||
58 | EXPORT_SYMBOL(memset_io); | 62 | EXPORT_SYMBOL(memset_io); |
59 | 63 | ||
64 | void __iomem *ioport_map(unsigned long port, unsigned int nr) | ||
65 | { | ||
66 | return sh_mv.mv_ioport_map(port, nr); | ||
67 | } | ||
68 | EXPORT_SYMBOL(ioport_map); | ||
69 | |||
70 | void ioport_unmap(void __iomem *addr) | ||
71 | { | ||
72 | sh_mv.mv_ioport_unmap(addr); | ||
73 | } | ||
74 | EXPORT_SYMBOL(ioport_unmap); | ||