arch/score/include/asm/delay.h

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