1#ifndef _M68KNOMMU_IO_H
2#define _M68KNOMMU_IO_H
3
4#ifdef __KERNEL__
5
6#define ARCH_HAS_IOREMAP_WT
7
8#include <asm/virtconvert.h>
9#include <asm-generic/iomap.h>
10
11
12
13
14
15
16
17
18
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20
21
22
23
24
25
26
27
28static inline unsigned short _swapw(volatile unsigned short v)
29{
30 return ((v << 8) | (v >> 8));
31}
32
33static inline unsigned int _swapl(volatile unsigned long v)
34{
35 return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
36}
37
38#define readb(addr) \
39 ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
40#define readw(addr) \
41 ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
42#define readl(addr) \
43 ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
44
45#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
46#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
47#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
48
49#define __raw_readb readb
50#define __raw_readw readw
51#define __raw_readl readl
52#define __raw_writeb writeb
53#define __raw_writew writew
54#define __raw_writel writel
55
56static inline void io_outsb(unsigned int addr, const void *buf, int len)
57{
58 volatile unsigned char *ap = (volatile unsigned char *) addr;
59 unsigned char *bp = (unsigned char *) buf;
60 while (len--)
61 *ap = *bp++;
62}
63
64static inline void io_outsw(unsigned int addr, const void *buf, int len)
65{
66 volatile unsigned short *ap = (volatile unsigned short *) addr;
67 unsigned short *bp = (unsigned short *) buf;
68 while (len--)
69 *ap = _swapw(*bp++);
70}
71
72static inline void io_outsl(unsigned int addr, const void *buf, int len)
73{
74 volatile unsigned int *ap = (volatile unsigned int *) addr;
75 unsigned int *bp = (unsigned int *) buf;
76 while (len--)
77 *ap = _swapl(*bp++);
78}
79
80static inline void io_insb(unsigned int addr, void *buf, int len)
81{
82 volatile unsigned char *ap = (volatile unsigned char *) addr;
83 unsigned char *bp = (unsigned char *) buf;
84 while (len--)
85 *bp++ = *ap;
86}
87
88static inline void io_insw(unsigned int addr, void *buf, int len)
89{
90 volatile unsigned short *ap = (volatile unsigned short *) addr;
91 unsigned short *bp = (unsigned short *) buf;
92 while (len--)
93 *bp++ = _swapw(*ap);
94}
95
96static inline void io_insl(unsigned int addr, void *buf, int len)
97{
98 volatile unsigned int *ap = (volatile unsigned int *) addr;
99 unsigned int *bp = (unsigned int *) buf;
100 while (len--)
101 *bp++ = _swapl(*ap);
102}
103
104#define mmiowb()
105
106
107
108
109
110
111#define memset_io(a,b,c) memset((void *)(a),(b),(c))
112#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
113#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
114
115#define inb(addr) readb(addr)
116#define inw(addr) readw(addr)
117#define inl(addr) readl(addr)
118#define outb(x,addr) ((void) writeb(x,addr))
119#define outw(x,addr) ((void) writew(x,addr))
120#define outl(x,addr) ((void) writel(x,addr))
121
122#define inb_p(addr) inb(addr)
123#define inw_p(addr) inw(addr)
124#define inl_p(addr) inl(addr)
125#define outb_p(x,addr) outb(x,addr)
126#define outw_p(x,addr) outw(x,addr)
127#define outl_p(x,addr) outl(x,addr)
128
129#define outsb(a,b,l) io_outsb(a,b,l)
130#define outsw(a,b,l) io_outsw(a,b,l)
131#define outsl(a,b,l) io_outsl(a,b,l)
132
133#define insb(a,b,l) io_insb(a,b,l)
134#define insw(a,b,l) io_insw(a,b,l)
135#define insl(a,b,l) io_insl(a,b,l)
136
137#define IO_SPACE_LIMIT 0xffffffff
138
139
140
141#define IOMAP_FULL_CACHING 0
142#define IOMAP_NOCACHE_SER 1
143#define IOMAP_NOCACHE_NONSER 2
144#define IOMAP_WRITETHROUGH 3
145
146static inline void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
147{
148 return (void *) physaddr;
149}
150static inline void *ioremap(unsigned long physaddr, unsigned long size)
151{
152 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
153}
154static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
155{
156 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
157}
158static inline void *ioremap_wt(unsigned long physaddr, unsigned long size)
159{
160 return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
161}
162static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
163{
164 return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
165}
166
167#define iounmap(addr) do { } while(0)
168
169
170
171
172
173#define xlate_dev_mem_ptr(p) __va(p)
174
175
176
177
178#define xlate_dev_kmem_ptr(p) p
179
180static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
181{
182 return (void __iomem *) port;
183}
184
185static inline void ioport_unmap(void __iomem *p)
186{
187}
188
189#endif
190
191#endif
192