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linux-next/include/asm-m68k/sbus.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

51 lines
1.1 KiB
C

/*
* 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