include/asm-arm/arch-at91/at91_pit.h

   1 /*
   2  * include/asm-arm/arch-at91/at91_pit.h
   3  *
   4  * Periodic Interval Timer (PIT) - System peripherals regsters.
   5  * Based on AT91SAM9261 datasheet revision D.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  */
  12
  13 #ifndef AT91_PIT_H
  14 #define AT91_PIT_H
  15
  16 #define AT91_PIT_MR             (AT91_PIT + 0x00)       /* Mode Register */
  17 #define         AT91_PIT_PITIEN         (1 << 25)               /* Timer Interrupt Enable */
  18 #define         AT91_PIT_PITEN          (1 << 24)               /* Timer Enabled */
  19 #define         AT91_PIT_PIV            (0xfffff)               /* Periodic Interval Value */
  20
  21 #define AT91_PIT_SR             (AT91_PIT + 0x04)       /* Status Register */
  22 #define         AT91_PIT_PITS           (1 << 0)                /* Timer Status */
  23
  24 #define AT91_PIT_PIVR           (AT91_PIT + 0x08)       /* Periodic Interval Value Register */
  25 #define AT91_PIT_PIIR           (AT91_PIT + 0x0c)       /* Periodic Interval Image Register */
  26 #define         AT91_PIT_PICNT          (0xfff << 20)           /* Interval Counter */
  27 #define         AT91_PIT_CPIV           (0xfffff)               /* Inverval Value */
  28
  29 #endif