text: /*
   * arch/arm/mach-at91/include/mach/at91_pit.h
   *
   * Copyright (C) 2007 Andrew Victor
   * Copyright (C) 2007 Atmel Corporation.
   *
   * Periodic Interval Timer (PIT) - System peripherals regsters.
   * Based on AT91SAM9261 datasheet revision D.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  
  #ifndef AT91_PIT_H
  #define AT91_PIT_H
  
  #define AT91_PIT_MR		0x00			/* Mode Register */
  #define		AT91_PIT_PITIEN		(1 << 25)		/* Timer Interrupt Enable */
  #define		AT91_PIT_PITEN		(1 << 24)		/* Timer Enabled */
  #define		AT91_PIT_PIV		(0xfffff)		/* Periodic Interval Value */
  
  #define AT91_PIT_SR		0x04			/* Status Register */
  #define		AT91_PIT_PITS		(1 << 0)		/* Timer Status */
  
  #define AT91_PIT_PIVR		0x08			/* Periodic Interval Value Register */
  #define AT91_PIT_PIIR		0x0c			/* Periodic Interval Image Register */
  #define		AT91_PIT_PICNT		(0xfff << 20)		/* Interval Counter */
  #define		AT91_PIT_CPIV		(0xfffff)		/* Inverval Value */
  
  #endif
  