projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| 8 | struct sbus_dev { | |
| 9 | struct { | |
| 10 | unsigned int which_io; | |
| 11 | unsigned int phys_addr; | |
| 12 | } reg_addrs[1]; | |
| 13 | }; | |
| 14 | ||
| 15 | extern 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 | ||
| 23 | static inline void _sbus_writeb(unsigned char val, unsigned long addr) | |
| 24 | { | |
| 25 | *(volatile unsigned char *)addr = val; | |
| 26 | } | |
| 27 | ||
| 28 | static inline unsigned char _sbus_readb(unsigned long addr) | |
| 29 | { | |
| 30 | return *(volatile unsigned char *)addr; | |
| 31 | } | |
| 32 | ||
| 33 | static inline void _sbus_writel(unsigned long val, unsigned long addr) | |
| 34 | { | |
| 35 | *(volatile unsigned long *)addr = val; | |
| 36 | ||
| 37 | } | |
| 38 | ||
| 39 | extern inline unsigned long _sbus_readl(unsigned long addr) | |
| 40 | { | |
| 41 | return *(volatile unsigned long *)addr; | |
| 42 | } | |
| 43 | ||
| 44 | ||
| 45 | #define sbus_readb(a) _sbus_readb((unsigned long)a) | |
| 46 | #define sbus_writeb(v, a) _sbus_writeb(v, (unsigned long)a) | |
| 47 | #define sbus_readl(a) _sbus_readl((unsigned long)a) | |
| 48 | #define sbus_writel(v, a) _sbus_writel(v, (unsigned long)a) | |
| 49 | ||
| 50 | #endif |