Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#ifndef _OR32_DELAY_H
#define _OR32_DELAY_H
 
#include <linux/linkage.h>
#include <asm/param.h>			/* Added by JPB: for HZ */
 
 
extern __inline__ void __delay(int loops)
{
	__asm__ __volatile__ (
			      "l.srli %0,%0,1;"
			      "1: l.sfeqi %0,0;"
			      "l.bnf 1b;"
			      "l.addi %0,%0,-1;"
			      : "=r" (loops): "0" (loops));
}
 
 
/* Use only for very small delays ( < 1 msec).  */
 
/* JPB: removed extern unsigned long loops_per_usec;*/
extern unsigned long loops_per_jiffy;	/* JPB */
 
extern __inline__ void udelay(unsigned long usecs)
{
  /*	__delay(usecs * loops_per_usec);  Removed by JPB */
	__delay( usecs * loops_per_jiffy * HZ / 1000000 );	/* JPB */
}
 
#endif