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7b64fef3 WD |
1 | /* |
2 | * Copyright (C) 2006 Atmel Corporation | |
3 | * | |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | #ifndef __ASM_AVR32_IO_H | |
23 | #define __ASM_AVR32_IO_H | |
24 | ||
f2302d44 SR |
25 | #include <asm/types.h> |
26 | ||
7b64fef3 WD |
27 | #ifdef __KERNEL__ |
28 | ||
29 | /* | |
30 | * Generic IO read/write. These perform native-endian accesses. Note | |
31 | * that some architectures will want to re-define __raw_{read,write}w. | |
32 | */ | |
33 | extern void __raw_writesb(unsigned int addr, const void *data, int bytelen); | |
34 | extern void __raw_writesw(unsigned int addr, const void *data, int wordlen); | |
35 | extern void __raw_writesl(unsigned int addr, const void *data, int longlen); | |
36 | ||
37 | extern void __raw_readsb(unsigned int addr, void *data, int bytelen); | |
38 | extern void __raw_readsw(unsigned int addr, void *data, int wordlen); | |
39 | extern void __raw_readsl(unsigned int addr, void *data, int longlen); | |
40 | ||
41 | #define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v)) | |
42 | #define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v)) | |
43 | #define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v)) | |
44 | ||
45 | #define __raw_readb(a) (*(volatile unsigned char *)(a)) | |
46 | #define __raw_readw(a) (*(volatile unsigned short *)(a)) | |
47 | #define __raw_readl(a) (*(volatile unsigned int *)(a)) | |
48 | ||
49 | /* As long as I/O is only performed in P4 (or possibly P3), we're safe */ | |
50 | #define writeb(v,a) __raw_writeb(v,a) | |
51 | #define writew(v,a) __raw_writew(v,a) | |
52 | #define writel(v,a) __raw_writel(v,a) | |
53 | ||
54 | #define readb(a) __raw_readb(a) | |
55 | #define readw(a) __raw_readw(a) | |
56 | #define readl(a) __raw_readl(a) | |
57 | ||
58 | /* | |
59 | * Bad read/write accesses... | |
60 | */ | |
61 | extern void __readwrite_bug(const char *fn); | |
62 | ||
63 | #define IO_SPACE_LIMIT 0xffffffff | |
64 | ||
65 | /* | |
66 | * All I/O is memory mapped, so these macros doesn't make very much sense | |
67 | */ | |
68 | #define outb(v,p) __raw_writeb(v, p) | |
69 | #define outw(v,p) __raw_writew(cpu_to_le16(v),p) | |
70 | #define outl(v,p) __raw_writel(cpu_to_le32(v),p) | |
71 | ||
72 | #define inb(p) ({ unsigned int __v = __raw_readb(p); __v; }) | |
73 | #define inw(p) ({ unsigned int __v = __le16_to_cpu(__raw_readw(p)); __v; }) | |
74 | #define inl(p) ({ unsigned int __v = __le32_to_cpu(__raw_readl(p)); __v; }) | |
75 | ||
a38de083 OM |
76 | #include <asm/arch/addrspace.h> |
77 | /* Provides virt_to_phys, phys_to_virt, cached, uncached, map_physmem */ | |
7b64fef3 WD |
78 | |
79 | #endif /* __KERNEL__ */ | |
80 | ||
3a197b2f HW |
81 | static inline void sync(void) |
82 | { | |
83 | } | |
84 | ||
4d7d6936 HS |
85 | /* |
86 | * Take down a mapping set up by map_physmem(). | |
87 | */ | |
88 | static inline void unmap_physmem(void *vaddr, unsigned long len) | |
89 | { | |
90 | ||
91 | } | |
92 | ||
7b64fef3 | 93 | #endif /* __ASM_AVR32_IO_H */ |