diff options
Diffstat (limited to 'include/asm-m68k/sbus.h')
| -rw-r--r-- | include/asm-m68k/sbus.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-m68k/sbus.h b/include/asm-m68k/sbus.h new file mode 100644 index 0000000..3b25c00 --- /dev/null +++ b/include/asm-m68k/sbus.h @@ -0,0 +1,50 @@ +/* + * 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 |