| /* |
| * 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 |