1
2
3
4#ifndef __ASM_NDS32_IO_H
5#define __ASM_NDS32_IO_H
6
7#include <linux/types.h>
8
9#define __raw_writeb __raw_writeb
10static inline void __raw_writeb(u8 val, volatile void __iomem *addr)
11{
12 asm volatile("sbi %0, [%1]" : : "r" (val), "r" (addr));
13}
14
15#define __raw_writew __raw_writew
16static inline void __raw_writew(u16 val, volatile void __iomem *addr)
17{
18 asm volatile("shi %0, [%1]" : : "r" (val), "r" (addr));
19}
20
21#define __raw_writel __raw_writel
22static inline void __raw_writel(u32 val, volatile void __iomem *addr)
23{
24 asm volatile("swi %0, [%1]" : : "r" (val), "r" (addr));
25}
26
27#define __raw_readb __raw_readb
28static inline u8 __raw_readb(const volatile void __iomem *addr)
29{
30 u8 val;
31
32 asm volatile("lbi %0, [%1]" : "=r" (val) : "r" (addr));
33 return val;
34}
35
36#define __raw_readw __raw_readw
37static inline u16 __raw_readw(const volatile void __iomem *addr)
38{
39 u16 val;
40
41 asm volatile("lhi %0, [%1]" : "=r" (val) : "r" (addr));
42 return val;
43}
44
45#define __raw_readl __raw_readl
46static inline u32 __raw_readl(const volatile void __iomem *addr)
47{
48 u32 val;
49
50 asm volatile("lwi %0, [%1]" : "=r" (val) : "r" (addr));
51 return val;
52}
53
54#define __iormb() rmb()
55#define __iowmb() wmb()
56
57
58
59
60
61
62
63#define readb_relaxed(c) ({ u8 __v = __raw_readb(c); __v; })
64#define readw_relaxed(c) ({ u16 __v = le16_to_cpu((__force __le16)__raw_readw(c)); __v; })
65#define readl_relaxed(c) ({ u32 __v = le32_to_cpu((__force __le32)__raw_readl(c)); __v; })
66#define writeb_relaxed(v,c) ((void)__raw_writeb((v),(c)))
67#define writew_relaxed(v,c) ((void)__raw_writew((__force u16)cpu_to_le16(v),(c)))
68#define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
69
70
71
72
73
74#define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; })
75#define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; })
76#define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(); __v; })
77
78#define writeb(v,c) ({ __iowmb(); writeb_relaxed((v),(c)); })
79#define writew(v,c) ({ __iowmb(); writew_relaxed((v),(c)); })
80#define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
81
82#include <asm-generic/io.h>
83
84#endif
85