1 /*-
2 * Copyright (c) 2009 Sylvestre Gallon. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26 /* $FreeBSD: releng/9.0/sys/arm/at91/at91_pitreg.h 210040 2010-07-14 00:48:53Z cognet $ */
27
28 #ifndef ARM_AT91_AT91PITREG_H
29 #define ARM_AT91_AT91PITREG_H
30
31 #define PIT_MR 0x0
32 #define PIT_SR 0x4
33 #define PIT_PIVR 0x8
34 #define PIT_PIIR 0xc
35
36 /* PIT_MR */
37 #define PIT_PIV(x) (x & 0xfffff) /* periodic interval value */
38 #define PIT_CNT(x) ((x >>20) & 0xfff) /* periodic interval counter */
39 #define PIT_EN (1 << 24) /* pit enable */
40 #define PIT_IEN (1 << 25) /* pit interrupt enable */
41
42 /* PIT_SR */
43 #define PIT_PITS_DONE 1 /* interrupt done */
44
45 #endif /* ARM_AT91_AT91PITREG_H */
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