sbus.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * some sbus structures and macros to make usage of sbus drivers possible
- */
- #ifndef __M68K_SBUS_H
- #define __M68K_SBUS_H
- struct linux_sbus_device {
- 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 */
- extern inline void _sbus_writeb(unsigned char val, unsigned long addr)
- {
- *(volatile unsigned char *)addr = val;
- }
- extern inline unsigned char _sbus_readb(unsigned long addr)
- {
- return *(volatile unsigned char *)addr;
- }
- extern inline void _sbus_writel(unsigned long val, unsigned long addr)
- {
- *(volatile unsigned long *)addr = val;
- }
- #define sbus_readb(a) _sbus_readb((unsigned long)a)
- #define sbus_writeb(v, a) _sbus_writeb(v, (unsigned long)a)
- #define sbus_writel(v, a) _sbus_writel(v, (unsigned long)a)
- #endif