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d0173278 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
7768a13c KS |
2 | /* |
3 | * linux/drivers/char/watchdog/omap_wdt.h | |
4 | * | |
5 | * BRIEF MODULE DESCRIPTION | |
6 | * OMAP Watchdog timer register definitions | |
7 | * | |
8 | * Copyright (C) 2004 Texas Instruments. | |
7768a13c KS |
9 | */ |
10 | ||
11 | #ifndef _OMAP_WATCHDOG_H | |
12 | #define _OMAP_WATCHDOG_H | |
13 | ||
2817142f FB |
14 | #define OMAP_WATCHDOG_REV (0x00) |
15 | #define OMAP_WATCHDOG_SYS_CONFIG (0x10) | |
16 | #define OMAP_WATCHDOG_STATUS (0x14) | |
17 | #define OMAP_WATCHDOG_CNTRL (0x24) | |
18 | #define OMAP_WATCHDOG_CRR (0x28) | |
19 | #define OMAP_WATCHDOG_LDR (0x2c) | |
20 | #define OMAP_WATCHDOG_TGR (0x30) | |
21 | #define OMAP_WATCHDOG_WPS (0x34) | |
22 | #define OMAP_WATCHDOG_SPR (0x48) | |
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23 | |
24 | /* Using the prescaler, the OMAP watchdog could go for many | |
25 | * months before firing. These limits work without scaling, | |
26 | * with the 60 second default assumed by most tools and docs. | |
27 | */ | |
5f3b2756 | 28 | #define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */ |
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29 | #define TIMER_MARGIN_DEFAULT 60 /* 60 secs */ |
30 | #define TIMER_MARGIN_MIN 1 | |
31 | ||
32 | #define PTV 0 /* prescale */ | |
33 | #define GET_WLDR_VAL(secs) (0xffffffff - ((secs) * (32768/(1<<PTV))) + 1) | |
452fafed | 34 | #define GET_WCCR_SECS(val) ((0xffffffff - (val) + 1) / (32768/(1<<PTV))) |
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35 | |
36 | #endif /* _OMAP_WATCHDOG_H */ |