diff options
Diffstat (limited to 'arch/frv/include/asm/delay.h')
| -rw-r--r-- | arch/frv/include/asm/delay.h | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/arch/frv/include/asm/delay.h b/arch/frv/include/asm/delay.h deleted file mode 100644 index 597b4ebf03b4..000000000000 --- a/arch/frv/include/asm/delay.h +++ /dev/null @@ -1,50 +0,0 @@ -/* delay.h: FRV delay code - * - * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_DELAY_H -#define _ASM_DELAY_H - -#include <asm/param.h> -#include <asm/timer-regs.h> - -/* - * delay loop - runs at __core_clock_speed_HZ / 2 [there are 2 insns in the loop] - */ -extern unsigned long __delay_loops_MHz; - -static inline void __delay(unsigned long loops) -{ - asm volatile("1: subicc %0,#1,%0,icc0 \n" - " bnc icc0,#2,1b \n" - : "=r" (loops) - : "0" (loops) - : "icc0" - ); -} - -/* - * Use only for very small delays ( < 1 msec). Should probably use a - * lookup table, really, as the multiplications take much too long with - * short delays. This is a "reasonable" implementation, though (and the - * first constant multiplications gets optimized away if the delay is - * a constant) - */ - -extern unsigned long loops_per_jiffy; - -static inline void udelay(unsigned long usecs) -{ - __delay(usecs * __delay_loops_MHz); -} - -#define ndelay(n) udelay((n) * 5) - -#endif /* _ASM_DELAY_H */ |