diff options
Diffstat (limited to 'include/asm-h8300/delay.h')
-rw-r--r-- | include/asm-h8300/delay.h | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/include/asm-h8300/delay.h b/include/asm-h8300/delay.h deleted file mode 100644 index 743beba70f82..000000000000 --- a/include/asm-h8300/delay.h +++ /dev/null | |||
@@ -1,38 +0,0 @@ | |||
1 | #ifndef _H8300_DELAY_H | ||
2 | #define _H8300_DELAY_H | ||
3 | |||
4 | #include <asm/param.h> | ||
5 | |||
6 | /* | ||
7 | * Copyright (C) 2002 Yoshinori Sato <ysato@sourceforge.jp> | ||
8 | * | ||
9 | * Delay routines, using a pre-computed "loops_per_second" value. | ||
10 | */ | ||
11 | |||
12 | static inline void __delay(unsigned long loops) | ||
13 | { | ||
14 | __asm__ __volatile__ ("1:\n\t" | ||
15 | "dec.l #1,%0\n\t" | ||
16 | "bne 1b" | ||
17 | :"=r" (loops):"0"(loops)); | ||
18 | } | ||
19 | |||
20 | /* | ||
21 | * Use only for very small delays ( < 1 msec). Should probably use a | ||
22 | * lookup table, really, as the multiplications take much too long with | ||
23 | * short delays. This is a "reasonable" implementation, though (and the | ||
24 | * first constant multiplications gets optimized away if the delay is | ||
25 | * a constant) | ||
26 | */ | ||
27 | |||
28 | extern unsigned long loops_per_jiffy; | ||
29 | |||
30 | static inline void udelay(unsigned long usecs) | ||
31 | { | ||
32 | usecs *= 4295; /* 2**32 / 1000000 */ | ||
33 | usecs /= (loops_per_jiffy*HZ); | ||
34 | if (usecs) | ||
35 | __delay(usecs); | ||
36 | } | ||
37 | |||
38 | #endif /* _H8300_DELAY_H */ | ||