linux/drivers/watchdog/omap_wdt.h
Guenter Roeck d017327893 watchdog: convert remaining drivers to use SPDX license identifier
This gets rid of the unnecessary license boilerplate, and avoids
having to deal with individual patches one by one.

No functional changes.

Reviewed-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2019-07-08 20:35:11 +02:00

37 lines
1.1 KiB
C

/* 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 */