diff options
Diffstat (limited to 'arch/blackfin/include/asm/delay.h')
| -rw-r--r-- | arch/blackfin/include/asm/delay.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/blackfin/include/asm/delay.h b/arch/blackfin/include/asm/delay.h index c31f91cc1d5..171d8deb04a 100644 --- a/arch/blackfin/include/asm/delay.h +++ b/arch/blackfin/include/asm/delay.h @@ -30,10 +30,22 @@ __asm__ __volatile__ ( #define HZSCALE (268435456 / (1000000/HZ)) -static inline void udelay(unsigned long usecs) +static inline unsigned long __to_delay(unsigned long scale) { extern unsigned long loops_per_jiffy; - __delay((((usecs * HZSCALE) >> 11) * (loops_per_jiffy >> 11)) >> 6); + 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 |