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