2019-06-20 10:28:46 -06:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0+ */
|
2006-09-29 02:59:18 -06:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
|
2008-09-19 19:14:01 -06:00
|
|
|
#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)
|
2006-09-29 02:59:18 -06:00
|
|
|
|
|
|
|
/* 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.
|
|
|
|
*/
|
2011-02-23 13:04:38 -07:00
|
|
|
#define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */
|
2006-09-29 02:59:18 -06:00
|
|
|
#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)
|
2015-06-17 02:58:59 -06:00
|
|
|
#define GET_WCCR_SECS(val) ((0xffffffff - (val) + 1) / (32768/(1<<PTV)))
|
2006-09-29 02:59:18 -06:00
|
|
|
|
|
|
|
#endif /* _OMAP_WATCHDOG_H */
|