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