diff options
Diffstat (limited to 'include/asm-frv/delay.h')
-rw-r--r-- | include/asm-frv/delay.h | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/include/asm-frv/delay.h b/include/asm-frv/delay.h deleted file mode 100644 index 597b4ebf03b4..000000000000 --- a/include/asm-frv/delay.h +++ /dev/null | |||
@@ -1,50 +0,0 @@ | |||
1 | /* delay.h: FRV delay code | ||
2 | * | ||
3 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | */ | ||
11 | |||
12 | #ifndef _ASM_DELAY_H | ||
13 | #define _ASM_DELAY_H | ||
14 | |||
15 | #include <asm/param.h> | ||
16 | #include <asm/timer-regs.h> | ||
17 | |||
18 | /* | ||
19 | * delay loop - runs at __core_clock_speed_HZ / 2 [there are 2 insns in the loop] | ||
20 | */ | ||
21 | extern unsigned long __delay_loops_MHz; | ||
22 | |||
23 | static inline void __delay(unsigned long loops) | ||
24 | { | ||
25 | asm volatile("1: subicc %0,#1,%0,icc0 \n" | ||
26 | " bnc icc0,#2,1b \n" | ||
27 | : "=r" (loops) | ||
28 | : "0" (loops) | ||
29 | : "icc0" | ||
30 | ); | ||
31 | } | ||
32 | |||
33 | /* | ||
34 | * Use only for very small delays ( < 1 msec). Should probably use a | ||
35 | * lookup table, really, as the multiplications take much too long with | ||
36 | * short delays. This is a "reasonable" implementation, though (and the | ||
37 | * first constant multiplications gets optimized away if the delay is | ||
38 | * a constant) | ||
39 | */ | ||
40 | |||
41 | extern unsigned long loops_per_jiffy; | ||
42 | |||
43 | static inline void udelay(unsigned long usecs) | ||
44 | { | ||
45 | __delay(usecs * __delay_loops_MHz); | ||
46 | } | ||
47 | |||
48 | #define ndelay(n) udelay((n) * 5) | ||
49 | |||
50 | #endif /* _ASM_DELAY_H */ | ||