kernel-ark/arch/score/include/asm/delay.h
Chen Liqin ef8355c3a3 score: include asm-generic/param.h in asm/delay.h.
Signed-off-by: Cui Bixiong <bixiong@sunnorth.com.cn>
Signed-off-by: Chen Liqin <liqin.chen@sunplusct.com>
2009-12-17 18:31:23 +08:00

29 lines
528 B
C

#ifndef _ASM_SCORE_DELAY_H
#define _ASM_SCORE_DELAY_H
#include <asm-generic/param.h>
static inline void __delay(unsigned long loops)
{
/* 3 cycles per loop. */
__asm__ __volatile__ (
"1:\tsubi\t%0, 3\n\t"
"cmpz.c\t%0\n\t"
"ble\t1b\n\t"
: "=r" (loops)
: "0" (loops));
}
static inline void __udelay(unsigned long usecs)
{
unsigned long loops_per_usec;
loops_per_usec = (loops_per_jiffy * HZ) / 1000000;
__delay(usecs * loops_per_usec);
}
#define udelay(usecs) __udelay(usecs)
#endif /* _ASM_SCORE_DELAY_H */