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Diffstat (limited to 'arch/sh/lib64/udelay.c')
-rw-r--r-- | arch/sh/lib64/udelay.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/sh/lib64/udelay.c b/arch/sh/lib64/udelay.c deleted file mode 100644 index f215b063da70..000000000000 --- a/arch/sh/lib64/udelay.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * arch/sh/lib64/udelay.c - * - * Delay routines, using a pre-computed "loops_per_jiffy" value. - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * Copyright (C) 2003, 2004 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/sched.h> -#include <asm/param.h> - -/* - * Use only for very small delays (< 1 msec). - * - * The active part of our cycle counter is only 32-bits wide, and - * we're treating the difference between two marks as signed. On - * a 1GHz box, that's about 2 seconds. - */ - -void __delay(unsigned long loops) -{ - long long dummy; - __asm__ __volatile__("gettr tr0, %1\n\t" - "pta $+4, tr0\n\t" - "addi %0, -1, %0\n\t" - "bne %0, r63, tr0\n\t" - "ptabs %1, tr0\n\t":"=r"(loops), - "=r"(dummy) - :"0"(loops)); -} - -void __const_udelay(unsigned long xloops) -{ - __delay(xloops * (HZ * cpu_data[raw_smp_processor_id()].loops_per_jiffy)); -} - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x000010c6); /* 2**32 / 1000000 */ -} - -void __ndelay(unsigned long nsecs) -{ - __const_udelay(nsecs * 0x00000005); -} |