diff options
Diffstat (limited to 'drivers/watchdog/omap_wdt.h')
-rw-r--r-- | drivers/watchdog/omap_wdt.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/watchdog/omap_wdt.h b/drivers/watchdog/omap_wdt.h new file mode 100644 index 000000000000..52a532a5114a --- /dev/null +++ b/drivers/watchdog/omap_wdt.h | |||
@@ -0,0 +1,64 @@ | |||
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 OMAP1610_WATCHDOG_BASE 0xfffeb000 | ||
34 | #define OMAP2420_WATCHDOG_BASE 0x48022000 /*WDT Timer 2 */ | ||
35 | |||
36 | #ifdef CONFIG_ARCH_OMAP24XX | ||
37 | #define OMAP_WATCHDOG_BASE OMAP2420_WATCHDOG_BASE | ||
38 | #else | ||
39 | #define OMAP_WATCHDOG_BASE OMAP1610_WATCHDOG_BASE | ||
40 | #define RM_RSTST_WKUP 0 | ||
41 | #endif | ||
42 | |||
43 | #define OMAP_WATCHDOG_REV (OMAP_WATCHDOG_BASE + 0x00) | ||
44 | #define OMAP_WATCHDOG_SYS_CONFIG (OMAP_WATCHDOG_BASE + 0x10) | ||
45 | #define OMAP_WATCHDOG_STATUS (OMAP_WATCHDOG_BASE + 0x14) | ||
46 | #define OMAP_WATCHDOG_CNTRL (OMAP_WATCHDOG_BASE + 0x24) | ||
47 | #define OMAP_WATCHDOG_CRR (OMAP_WATCHDOG_BASE + 0x28) | ||
48 | #define OMAP_WATCHDOG_LDR (OMAP_WATCHDOG_BASE + 0x2c) | ||
49 | #define OMAP_WATCHDOG_TGR (OMAP_WATCHDOG_BASE + 0x30) | ||
50 | #define OMAP_WATCHDOG_WPS (OMAP_WATCHDOG_BASE + 0x34) | ||
51 | #define OMAP_WATCHDOG_SPR (OMAP_WATCHDOG_BASE + 0x48) | ||
52 | |||
53 | /* Using the prescaler, the OMAP watchdog could go for many | ||
54 | * months before firing. These limits work without scaling, | ||
55 | * with the 60 second default assumed by most tools and docs. | ||
56 | */ | ||
57 | #define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */ | ||
58 | #define TIMER_MARGIN_DEFAULT 60 /* 60 secs */ | ||
59 | #define TIMER_MARGIN_MIN 1 | ||
60 | |||
61 | #define PTV 0 /* prescale */ | ||
62 | #define GET_WLDR_VAL(secs) (0xffffffff - ((secs) * (32768/(1<<PTV))) + 1) | ||
63 | |||
64 | #endif /* _OMAP_WATCHDOG_H */ | ||