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1 /* 1
2 * arch/arm/mach-ixp2000/include/mach/io.h
3 *
4 * Original Author: Naeem M Afzal <naeem.m.afz
5 * Maintainer: Deepak Saxena <dsaxena@plexity.
6 *
7 * Copyright (C) 2002 Intel Corp.
8 * Copyrgiht (C) 2003-2004 MontaVista Software
9 *
10 * This program is free software; you can redi
11 * it under the terms of the GNU General Publi
12 * published by the Free Software Foundation.
13 */
14
15 #ifndef __ASM_ARM_ARCH_IO_H
16 #define __ASM_ARM_ARCH_IO_H
17
18 #include <mach/hardware.h>
19
20 #define IO_SPACE_LIMIT 0xffffffff
21 #define __mem_pci(a) (a)
22
23 /*
24 * The A? revisions of the IXP2000s assert byt
25 * transactions the other way round (MEM trans
26 * issue), so if we want to support those mode
27 * the standard I/O functions.
28 *
29 * B0 and later have a bit that can be set to
30 * behavior for I/O transactions, which then a
31 * standard I/O functions. This is what we do
32 * explicitly ask for support for pre-B0.
33 */
34 #ifdef CONFIG_IXP2000_SUPPORT_BROKEN_PCI_IO
35 #define ___io(p) ((void __iomem
36
37 #define alignb(addr) (void __iomem
38 #define alignw(addr) (void __iomem
39
40 #define outb(v,p) __raw_writeb((
41 #define outw(v,p) __raw_writew((
42 #define outl(v,p) __raw_writel((
43
44 #define inb(p) ({ unsigned int __v =
45 #define inw(p) \
46 ({ unsigned int __v = (__raw_readw(ali
47 #define inl(p) \
48 ({ unsigned int __v = (__raw_readl(___
49
50 #define outsb(p,d,l) __raw_writesb(
51 #define outsw(p,d,l) __raw_writesw(
52 #define outsl(p,d,l) __raw_writesl(
53
54 #define insb(p,d,l) __raw_readsb(a
55 #define insw(p,d,l) __raw_readsw(a
56 #define insl(p,d,l) __raw_readsl(_
57
58 #define __is_io_address(p) ((((unsigned l
59
60 #define ioread8(p)
61 ({
62 unsigned int __v;
63
64 if (__is_io_address(p)) {
65 __v = __raw_readb(alig
66 } else {
67 __v = __raw_readb(p);
68 }
69
70 __v;
71 })
72
73 #define ioread16(p)
74 ({
75 unsigned int __v;
76
77 if (__is_io_address(p)) {
78 __v = __raw_readw(alig
79 } else {
80 __v = le16_to_cpu(__ra
81 }
82
83 __v;
84 })
85
86 #define ioread32(p)
87 ({
88 unsigned int __v;
89
90 if (__is_io_address(p)) {
91 __v = __raw_readl(p);
92 } else {
93 __v = le32_to_cpu(__ra
94 }
95
96 __v;
97 })
98
99 #define iowrite8(v,p)
100 ({
101 if (__is_io_address(p)) {
102 __raw_writeb((v), alig
103 } else {
104 __raw_writeb((v), p);
105 }
106 })
107
108 #define iowrite16(v,p)
109 ({
110 if (__is_io_address(p)) {
111 __raw_writew((v), alig
112 } else {
113 __raw_writew(cpu_to_le
114 }
115 })
116
117 #define iowrite32(v,p)
118 ({
119 if (__is_io_address(p)) {
120 __raw_writel((v), p);
121 } else {
122 __raw_writel(cpu_to_le
123 }
124 })
125
126 #define ioport_map(port, nr) ___io(port)
127
128 #define ioport_unmap(addr)
129 #else
130 #define __io(p) ((void __iomem
131 #endif
132
133
134 #endif
135
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