37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* linux/drivers/char/watchdog/omap_wdt.h
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*
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* BRIEF MODULE DESCRIPTION
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* OMAP Watchdog timer register definitions
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*
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* Copyright (C) 2004 Texas Instruments.
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*/
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#ifndef _OMAP_WATCHDOG_H
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#define _OMAP_WATCHDOG_H
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#define OMAP_WATCHDOG_REV (0x00)
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#define OMAP_WATCHDOG_SYS_CONFIG (0x10)
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#define OMAP_WATCHDOG_STATUS (0x14)
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#define OMAP_WATCHDOG_CNTRL (0x24)
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#define OMAP_WATCHDOG_CRR (0x28)
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#define OMAP_WATCHDOG_LDR (0x2c)
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#define OMAP_WATCHDOG_TGR (0x30)
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#define OMAP_WATCHDOG_WPS (0x34)
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#define OMAP_WATCHDOG_SPR (0x48)
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/* Using the prescaler, the OMAP watchdog could go for many
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* months before firing. These limits work without scaling,
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* with the 60 second default assumed by most tools and docs.
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*/
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#define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */
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#define TIMER_MARGIN_DEFAULT 60 /* 60 secs */
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#define TIMER_MARGIN_MIN 1
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#define PTV 0 /* prescale */
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#define GET_WLDR_VAL(secs) (0xffffffff - ((secs) * (32768/(1<<PTV))) + 1)
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#define GET_WCCR_SECS(val) ((0xffffffff - (val) + 1) / (32768/(1<<PTV)))
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#endif /* _OMAP_WATCHDOG_H */
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