1#ifndef _ASM_SCORE_DELAY_H 2#define _ASM_SCORE_DELAY_H 3 4#include <asm-generic/param.h> 5 6static inline void __delay(unsigned long loops) 7{ 8 /* 3 cycles per loop. */ 9 __asm__ __volatile__ ( 10 "1:\tsubi\t%0, 3\n\t" 11 "cmpz.c\t%0\n\t" 12 "ble\t1b\n\t" 13 : "=r" (loops) 14 : "0" (loops)); 15} 16 17static inline void __udelay(unsigned long usecs) 18{ 19 unsigned long loops_per_usec; 20 21 loops_per_usec = (loops_per_jiffy * HZ) / 1000000; 22 23 __delay(usecs * loops_per_usec); 24} 25 26#define udelay(usecs) __udelay(usecs) 27 28#endif /* _ASM_SCORE_DELAY_H */ 29