sbus.h
1.13 KB
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
/*
* some sbus structures and macros to make usage of sbus drivers possible
*/
#ifndef __M68K_SBUS_H
#define __M68K_SBUS_H
struct sbus_dev {
struct {
unsigned int which_io;
unsigned int phys_addr;
} reg_addrs[1];
};
extern void *sparc_alloc_io (u32, void *, int, char *, u32, int);
#define sparc_alloc_io(a,b,c,d,e,f) (a)
#define ARCH_SUN4 0
/* sbus IO functions stolen from include/asm-sparc/io.h for the serial driver */
/* No SBUS on the Sun3, kludge -- sam */
static inline void _sbus_writeb(unsigned char val, unsigned long addr)
{
*(volatile unsigned char *)addr = val;
}
static inline unsigned char _sbus_readb(unsigned long addr)
{
return *(volatile unsigned char *)addr;
}
static inline void _sbus_writel(unsigned long val, unsigned long addr)
{
*(volatile unsigned long *)addr = val;
}
extern inline unsigned long _sbus_readl(unsigned long addr)
{
return *(volatile unsigned long *)addr;
}
#define sbus_readb(a) _sbus_readb((unsigned long)a)
#define sbus_writeb(v, a) _sbus_writeb(v, (unsigned long)a)
#define sbus_readl(a) _sbus_readl((unsigned long)a)
#define sbus_writel(v, a) _sbus_writel(v, (unsigned long)a)
#endif