diff options
Diffstat (limited to 'arch/avr32/lib/delay.c')
| -rw-r--r-- | arch/avr32/lib/delay.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/arch/avr32/lib/delay.c b/arch/avr32/lib/delay.c deleted file mode 100644 index c2f4a07..0000000 --- a/arch/avr32/lib/delay.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Precise Delay Loops for avr32 - * - * Copyright (C) 1993 Linus Torvalds - * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz> - * Copyright (C) 2005-2006 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/timex.h> -#include <linux/param.h> -#include <linux/types.h> -#include <linux/init.h> - -#include <asm/processor.h> -#include <asm/sysreg.h> - -int read_current_timer(unsigned long *timer_value) -{ - *timer_value = sysreg_read(COUNT); - return 0; -} - -void __delay(unsigned long loops) -{ - unsigned bclock, now; - - bclock = sysreg_read(COUNT); - do { - now = sysreg_read(COUNT); - } while ((now - bclock) < loops); -} - -inline void __const_udelay(unsigned long xloops) -{ - unsigned long long loops; - - asm("mulu.d %0, %1, %2" - : "=r"(loops) - : "r"(current_cpu_data.loops_per_jiffy * HZ), "r"(xloops)); - __delay(loops >> 32); -} - -void __udelay(unsigned long usecs) -{ - __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ -} - -void __ndelay(unsigned long nsecs) -{ - __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ -} |
