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at91_rtt.h

/*
 * arch/arm/mach-at91/include/mach/at91_rtt.h
 *
 * Copyright (C) 2007 Andrew Victor
 * Copyright (C) 2007 Atmel Corporation.
 *
 * Real-time Timer (RTT) - 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_RTT_H
#define AT91_RTT_H

#define AT91_RTT_MR           0x00              /* Real-time Mode Register */
#define           AT91_RTT_RTPRES         (0xffff << 0)           /* Real-time Timer Prescaler Value */
#define           AT91_RTT_ALMIEN         (1 << 16)         /* Alarm Interrupt Enable */
#define           AT91_RTT_RTTINCIEN      (1 << 17)         /* Real Time Timer Increment Interrupt Enable */
#define           AT91_RTT_RTTRST         (1 << 18)         /* Real Time Timer Restart */

#define AT91_RTT_AR           0x04              /* Real-time Alarm Register */
#define           AT91_RTT_ALMV           (0xffffffff)            /* Alarm Value */

#define AT91_RTT_VR           0x08              /* Real-time Value Register */
#define           AT91_RTT_CRTV           (0xffffffff)            /* Current Real-time Value */

#define AT91_RTT_SR           0x0c              /* Real-time Status Register */
#define           AT91_RTT_ALMS           (1 << 0)          /* Real-time Alarm Status */
#define           AT91_RTT_RTTINC         (1 << 1)          /* Real-time Timer Increment */

#endif

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