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Diffstat (limited to 'arch/blackfin/include/asm/delay.h')
-rw-r--r-- | arch/blackfin/include/asm/delay.h | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/blackfin/include/asm/delay.h b/arch/blackfin/include/asm/delay.h deleted file mode 100644 index 171d8deb04a5..000000000000 --- a/arch/blackfin/include/asm/delay.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * delay.h - delay functions - * - * Copyright (c) 2004-2007 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#ifndef __ASM_DELAY_H__ -#define __ASM_DELAY_H__ - -#include <mach/anomaly.h> - -static inline void __delay(unsigned long loops) -{ -__asm__ __volatile__ ( - "LSETUP(1f, 1f) LC0 = %0;" - "1: NOP;" - : - : "a" (loops) - : "LT0", "LB0", "LC0" - ); -} - -#include <linux/param.h> /* needed for HZ */ - -/* - * close approximation borrowed from m68knommu to avoid 64-bit math - */ - -#define HZSCALE (268435456 / (1000000/HZ)) - -static inline unsigned long __to_delay(unsigned long scale) -{ - extern unsigned long loops_per_jiffy; - return (((scale * HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6; -} - -static inline void udelay(unsigned long usecs) -{ - __delay(__to_delay(usecs)); -} - -static inline void ndelay(unsigned long nsecs) -{ - __delay(__to_delay(1) * nsecs / 1000); -} - -#define ndelay ndelay - -#endif |