1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* Copyright (C) 2006 Atmel Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_AVR32_IO_H
#define __ASM_AVR32_IO_H
#include <asm/types.h>
#ifdef __KERNEL__
/*
* Generic IO read/write. These perform native-endian accesses. Note
* that some architectures will want to re-define __raw_{read,write}w.
*/
extern void __raw_writesb(unsigned int addr, const void *data, int bytelen);
extern void __raw_writesw(unsigned int addr, const void *data, int wordlen);
extern void __raw_writesl(unsigned int addr, const void *data, int longlen);
extern void __raw_readsb(unsigned int addr, void *data, int bytelen);
extern void __raw_readsw(unsigned int addr, void *data, int wordlen);
extern void __raw_readsl(unsigned int addr, void *data, int longlen);
#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v))
#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
#define __raw_readb(a) (*(volatile unsigned char *)(a))
#define __raw_readw(a) (*(volatile unsigned short *)(a))
#define __raw_readl(a) (*(volatile unsigned int *)(a))
/* As long as I/O is only performed in P4 (or possibly P3), we're safe */
#define writeb(v,a) __raw_writeb(v,a)
#define writew(v,a) __raw_writew(v,a)
#define writel(v,a) __raw_writel(v,a)
#define readb(a) __raw_readb(a)
#define readw(a) __raw_readw(a)
#define readl(a) __raw_readl(a)
/*
* Bad read/write accesses...
*/
extern void __readwrite_bug(const char *fn);
#define IO_SPACE_LIMIT 0xffffffff
/*
* All I/O is memory mapped, so these macros doesn't make very much sense
*/
#define outb(v,p) __raw_writeb(v, p)
#define outw(v,p) __raw_writew(cpu_to_le16(v),p)
#define outl(v,p) __raw_writel(cpu_to_le32(v),p)
#define inb(p) ({ unsigned int __v = __raw_readb(p); __v; })
#define inw(p) ({ unsigned int __v = __le16_to_cpu(__raw_readw(p)); __v; })
#define inl(p) ({ unsigned int __v = __le32_to_cpu(__raw_readl(p)); __v; })
#include <asm/arch/addrspace.h>
/* Provides virt_to_phys, phys_to_virt, cached, uncached, map_physmem */
#endif /* __KERNEL__ */
static inline void sync(void)
{
}
/*
* Take down a mapping set up by map_physmem().
*/
static inline void unmap_physmem(void *vaddr, unsigned long len)
{
}
#endif /* __ASM_AVR32_IO_H */
|
