1/*
2 * some sbus structures and macros to make usage of sbus drivers possible
3 */
4
5#ifndef __M68K_SBUS_H
6#define __M68K_SBUS_H
7
8struct linux_sbus_device {
9	struct {
10		unsigned int which_io;
11		unsigned int phys_addr;
12	} reg_addrs[1];
13};
14
15extern void *sparc_alloc_io (u32, void *, int, char *, u32, int);
16#define sparc_alloc_io(a,b,c,d,e,f)	(a)
17
18#define ARCH_SUN4  0
19
20/* sbus IO functions stolen from include/asm-sparc/io.h for the serial driver */
21/* No SBUS on the Sun3, kludge -- sam */
22
23extern inline void _sbus_writeb(unsigned char val, unsigned long addr)
24{
25	*(volatile unsigned char *)addr = val;
26}
27
28extern inline unsigned char _sbus_readb(unsigned long addr)
29{
30	return *(volatile unsigned char *)addr;
31}
32
33extern inline void _sbus_writel(unsigned long val, unsigned long addr)
34{
35	*(volatile unsigned long *)addr = val;
36
37}
38
39#define sbus_readb(a) _sbus_readb((unsigned long)a)
40#define sbus_writeb(v, a) _sbus_writeb(v, (unsigned long)a)
41#define sbus_writel(v, a) _sbus_writel(v, (unsigned long)a)
42
43#endif
44