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 */ | ||
