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at91_pit.h
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1 /*
2  * arch/arm/mach-at91/include/mach/at91_pit.h
3  *
4  * Copyright (C) 2007 Andrew Victor
5  * Copyright (C) 2007 Atmel Corporation.
6  *
7  * Periodic Interval Timer (PIT) - System peripherals regsters.
8  * Based on AT91SAM9261 datasheet revision D.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  */
15 
16 #ifndef AT91_PIT_H
17 #define AT91_PIT_H
18 
19 #define AT91_PIT_MR 0x00 /* Mode Register */
20 #define AT91_PIT_PITIEN (1 << 25) /* Timer Interrupt Enable */
21 #define AT91_PIT_PITEN (1 << 24) /* Timer Enabled */
22 #define AT91_PIT_PIV (0xfffff) /* Periodic Interval Value */
23 
24 #define AT91_PIT_SR 0x04 /* Status Register */
25 #define AT91_PIT_PITS (1 << 0) /* Timer Status */
26 
27 #define AT91_PIT_PIVR 0x08 /* Periodic Interval Value Register */
28 #define AT91_PIT_PIIR 0x0c /* Periodic Interval Image Register */
29 #define AT91_PIT_PICNT (0xfff << 20) /* Interval Counter */
30 #define AT91_PIT_CPIV (0xfffff) /* Inverval Value */
31 
32 #endif