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 33