diff options
Diffstat (limited to 'include/asm-v850/delay.h')
-rw-r--r-- | include/asm-v850/delay.h | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/include/asm-v850/delay.h b/include/asm-v850/delay.h deleted file mode 100644 index 6d028e6b2354..000000000000 --- a/include/asm-v850/delay.h +++ /dev/null | |||
@@ -1,47 +0,0 @@ | |||
1 | /* | ||
2 | * include/asm-v850/delay.h -- Delay routines, using a pre-computed | ||
3 | * "loops_per_second" value | ||
4 | * | ||
5 | * Copyright (C) 2001,03 NEC Corporation | ||
6 | * Copyright (C) 2001,03 Miles Bader <miles@gnu.org> | ||
7 | * Copyright (C) 1994 Hamish Macdonald | ||
8 | * | ||
9 | * This file is subject to the terms and conditions of the GNU General | ||
10 | * Public License. See the file COPYING in the main directory of this | ||
11 | * archive for more details. | ||
12 | */ | ||
13 | |||
14 | #ifndef __V850_DELAY_H__ | ||
15 | #define __V850_DELAY_H__ | ||
16 | |||
17 | #include <asm/param.h> | ||
18 | |||
19 | static inline void __delay(unsigned long loops) | ||
20 | { | ||
21 | if (loops) | ||
22 | __asm__ __volatile__ ("1: add -1, %0; bnz 1b" | ||
23 | : "=r" (loops) : "0" (loops)); | ||
24 | } | ||
25 | |||
26 | /* | ||
27 | * Use only for very small delays ( < 1 msec). Should probably use a | ||
28 | * lookup table, really, as the multiplications take much too long with | ||
29 | * short delays. This is a "reasonable" implementation, though (and the | ||
30 | * first constant multiplications gets optimized away if the delay is | ||
31 | * a constant) | ||
32 | */ | ||
33 | |||
34 | extern unsigned long loops_per_jiffy; | ||
35 | |||
36 | static inline void udelay(unsigned long usecs) | ||
37 | { | ||
38 | register unsigned long full_loops, part_loops; | ||
39 | |||
40 | full_loops = ((usecs * HZ) / 1000000) * loops_per_jiffy; | ||
41 | usecs %= (1000000 / HZ); | ||
42 | part_loops = (usecs * HZ * loops_per_jiffy) / 1000000; | ||
43 | |||
44 | __delay(full_loops + part_loops); | ||
45 | } | ||
46 | |||
47 | #endif /* __V850_DELAY_H__ */ | ||