diff options
Diffstat (limited to 'arch/score/include/asm/delay.h')
| -rw-r--r-- | arch/score/include/asm/delay.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/score/include/asm/delay.h b/arch/score/include/asm/delay.h index ad716f6d922..6726ec199dc 100644 --- a/arch/score/include/asm/delay.h +++ b/arch/score/include/asm/delay.h @@ -3,17 +3,22 @@ static inline void __delay(unsigned long loops) { + /* 3 cycles per loop. */ __asm__ __volatile__ ( - "1:\tsubi\t%0,1\n\t" + "1:\tsubi\t%0, 3\n\t" "cmpz.c\t%0\n\t" - "bne\t1b\n\t" + "ble\t1b\n\t" : "=r" (loops) : "0" (loops)); } static inline void __udelay(unsigned long usecs) { - __delay(usecs); + unsigned long loops_per_usec; + + loops_per_usec = (loops_per_jiffy * HZ) / 1000000; + + __delay(usecs * loops_per_usec); } #define udelay(usecs) __udelay(usecs) |