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1 | /* |
2 | * linux/drivers/char/watchdog/omap_wdt.h |
3 | * |
4 | * BRIEF MODULE DESCRIPTION |
5 | * OMAP Watchdog timer register definitions |
6 | * |
7 | * Copyright (C) 2004 Texas Instruments. |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify it |
10 | * under the terms of the GNU General Public License as published by the |
11 | * Free Software Foundation; either version 2 of the License, or (at your |
12 | * option) any later version. |
13 | * |
14 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
16 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
17 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
20 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
21 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 | * |
25 | * You should have received a copy of the GNU General Public License along |
26 | * with this program; if not, write to the Free Software Foundation, Inc., |
27 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
28 | */ |
29 | |
30 | #ifndef _OMAP_WATCHDOG_H |
31 | #define _OMAP_WATCHDOG_H |
32 | |
33 | #define OMAP_WATCHDOG_REV (0x00) |
34 | #define OMAP_WATCHDOG_SYS_CONFIG (0x10) |
35 | #define OMAP_WATCHDOG_STATUS (0x14) |
36 | #define OMAP_WATCHDOG_CNTRL (0x24) |
37 | #define OMAP_WATCHDOG_CRR (0x28) |
38 | #define OMAP_WATCHDOG_LDR (0x2c) |
39 | #define OMAP_WATCHDOG_TGR (0x30) |
40 | #define OMAP_WATCHDOG_WPS (0x34) |
41 | #define OMAP_WATCHDOG_SPR (0x48) |
42 | |
43 | /* Using the prescaler, the OMAP watchdog could go for many |
44 | * months before firing. These limits work without scaling, |
45 | * with the 60 second default assumed by most tools and docs. |
46 | */ |
47 | #define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */ |
48 | #define TIMER_MARGIN_DEFAULT 60 /* 60 secs */ |
49 | #define TIMER_MARGIN_MIN 1 |
50 | |
51 | #define PTV 0 /* prescale */ |
52 | #define GET_WLDR_VAL(secs) (0xffffffff - ((secs) * (32768/(1<<PTV))) + 1) |
53 | |
54 | #endif /* _OMAP_WATCHDOG_H */ |
55 |
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