include/asm-x86/8253pit_64.h - linux - Git at Google

 /*
  * 8253/8254 Programmable Interval Timer
  */

 #ifndef _8253PIT_H
 #define _8253PIT_H

 #define PIT_TICK_RATE 	1193182UL

 #endif
	/*
	* 8253/8254 Programmable Interval Timer
	*/

	#ifndef _8253PIT_H
	#define _8253PIT_H

	#define PIT_TICK_RATE 1193182UL

	#endif