Commit | Line | Data |
---|---|---|
1162b070 VG |
1 | /* |
2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef _ASM_ARC_IO_H | |
10 | #define _ASM_ARC_IO_H | |
11 | ||
12 | #include <linux/types.h> | |
13 | #include <asm/byteorder.h> | |
14 | #include <asm/page.h> | |
15 | ||
1162b070 | 16 | extern void __iomem *ioremap(unsigned long physaddr, unsigned long size); |
4368902b GBY |
17 | extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size, |
18 | unsigned long flags); | |
1162b070 VG |
19 | extern void iounmap(const void __iomem *addr); |
20 | ||
21 | #define ioremap_nocache(phy, sz) ioremap(phy, sz) | |
22 | #define ioremap_wc(phy, sz) ioremap(phy, sz) | |
556269c1 | 23 | #define ioremap_wt(phy, sz) ioremap(phy, sz) |
1162b070 VG |
24 | |
25 | /* Change struct page to physical address */ | |
26 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) | |
27 | ||
28 | #define __raw_readb __raw_readb | |
29 | static inline u8 __raw_readb(const volatile void __iomem *addr) | |
30 | { | |
31 | u8 b; | |
32 | ||
33 | __asm__ __volatile__( | |
34 | " ldb%U1 %0, %1 \n" | |
35 | : "=r" (b) | |
36 | : "m" (*(volatile u8 __force *)addr) | |
37 | : "memory"); | |
38 | ||
39 | return b; | |
40 | } | |
41 | ||
42 | #define __raw_readw __raw_readw | |
43 | static inline u16 __raw_readw(const volatile void __iomem *addr) | |
44 | { | |
45 | u16 s; | |
46 | ||
47 | __asm__ __volatile__( | |
48 | " ldw%U1 %0, %1 \n" | |
49 | : "=r" (s) | |
50 | : "m" (*(volatile u16 __force *)addr) | |
51 | : "memory"); | |
52 | ||
53 | return s; | |
54 | } | |
55 | ||
56 | #define __raw_readl __raw_readl | |
57 | static inline u32 __raw_readl(const volatile void __iomem *addr) | |
58 | { | |
59 | u32 w; | |
60 | ||
61 | __asm__ __volatile__( | |
62 | " ld%U1 %0, %1 \n" | |
63 | : "=r" (w) | |
64 | : "m" (*(volatile u32 __force *)addr) | |
65 | : "memory"); | |
66 | ||
67 | return w; | |
68 | } | |
69 | ||
70 | #define __raw_writeb __raw_writeb | |
71 | static inline void __raw_writeb(u8 b, volatile void __iomem *addr) | |
72 | { | |
73 | __asm__ __volatile__( | |
74 | " stb%U1 %0, %1 \n" | |
75 | : | |
76 | : "r" (b), "m" (*(volatile u8 __force *)addr) | |
77 | : "memory"); | |
78 | } | |
79 | ||
80 | #define __raw_writew __raw_writew | |
81 | static inline void __raw_writew(u16 s, volatile void __iomem *addr) | |
82 | { | |
83 | __asm__ __volatile__( | |
84 | " stw%U1 %0, %1 \n" | |
85 | : | |
86 | : "r" (s), "m" (*(volatile u16 __force *)addr) | |
87 | : "memory"); | |
88 | ||
89 | } | |
90 | ||
91 | #define __raw_writel __raw_writel | |
92 | static inline void __raw_writel(u32 w, volatile void __iomem *addr) | |
93 | { | |
94 | __asm__ __volatile__( | |
95 | " st%U1 %0, %1 \n" | |
96 | : | |
97 | : "r" (w), "m" (*(volatile u32 __force *)addr) | |
98 | : "memory"); | |
99 | ||
100 | } | |
101 | ||
6532b02f MJ |
102 | #define readb_relaxed readb |
103 | #define readw_relaxed readw | |
104 | #define readl_relaxed readl | |
105 | ||
1162b070 VG |
106 | #include <asm-generic/io.h> |
107 | ||
108 | #endif /* _ASM_ARC_IO_H */ |