1 /*
2  * drivers/watchdog/at91sam9_wdt.h
3  *
4  * Copyright (C) 2007 Andrew Victor
5  * Copyright (C) 2007 Atmel Corporation.
6  *
7  * Watchdog Timer (WDT) - System peripherals regsters.
8  * Based on AT91SAM9261 datasheet revision D.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  */
15 
16 #ifndef AT91_WDT_H
17 #define AT91_WDT_H
18 
19 #define AT91_WDT_CR		0x00			/* Watchdog Control Register */
20 #define		AT91_WDT_WDRSTT		(1    << 0)		/* Restart */
21 #define		AT91_WDT_KEY		(0xa5 << 24)		/* KEY Password */
22 
23 #define AT91_WDT_MR		0x04			/* Watchdog Mode Register */
24 #define		AT91_WDT_WDV		(0xfff << 0)		/* Counter Value */
25 #define		AT91_WDT_WDFIEN		(1     << 12)		/* Fault Interrupt Enable */
26 #define		AT91_WDT_WDRSTEN	(1     << 13)		/* Reset Processor */
27 #define		AT91_WDT_WDRPROC	(1     << 14)		/* Timer Restart */
28 #define		AT91_WDT_WDDIS		(1     << 15)		/* Watchdog Disable */
29 #define		AT91_WDT_WDD		(0xfff << 16)		/* Delta Value */
30 #define		AT91_WDT_WDDBGHLT	(1     << 28)		/* Debug Halt */
31 #define		AT91_WDT_WDIDLEHLT	(1     << 29)		/* Idle Halt */
32 
33 #define AT91_WDT_SR		0x08			/* Watchdog Status Register */
34 #define		AT91_WDT_WDUNF		(1 << 0)		/* Watchdog Underflow */
35 #define		AT91_WDT_WDERR		(1 << 1)		/* Watchdog Error */
36 
37 #endif
38