1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * drivers/watchdog/at91sam9_wdt.h
 4 *
 5 * Copyright (C) 2007 Andrew Victor
 6 * Copyright (C) 2007 Atmel Corporation.
 7 *
 8 * Watchdog Timer (WDT) - System peripherals regsters.
 9 * Based on AT91SAM9261 datasheet revision D.
10 *
11 */
12
13#ifndef AT91_WDT_H
14#define AT91_WDT_H
15
16#define AT91_WDT_CR		0x00			/* Watchdog Control Register */
17#define		AT91_WDT_WDRSTT		(1    << 0)		/* Restart */
18#define		AT91_WDT_KEY		(0xa5 << 24)		/* KEY Password */
19
20#define AT91_WDT_MR		0x04			/* Watchdog Mode Register */
21#define		AT91_WDT_WDV		(0xfff << 0)		/* Counter Value */
22#define			AT91_WDT_SET_WDV(x)	((x) & AT91_WDT_WDV)
23#define		AT91_WDT_WDFIEN		(1     << 12)		/* Fault Interrupt Enable */
24#define		AT91_WDT_WDRSTEN	(1     << 13)		/* Reset Processor */
25#define		AT91_WDT_WDRPROC	(1     << 14)		/* Timer Restart */
26#define		AT91_WDT_WDDIS		(1     << 15)		/* Watchdog Disable */
27#define		AT91_WDT_WDD		(0xfff << 16)		/* Delta Value */
28#define			AT91_WDT_SET_WDD(x)	(((x) << 16) & AT91_WDT_WDD)
29#define		AT91_WDT_WDDBGHLT	(1     << 28)		/* Debug Halt */
30#define		AT91_WDT_WDIDLEHLT	(1     << 29)		/* Idle Halt */
31
32#define AT91_WDT_SR		0x08			/* Watchdog Status Register */
33#define		AT91_WDT_WDUNF		(1 << 0)		/* Watchdog Underflow */
34#define		AT91_WDT_WDERR		(1 << 1)		/* Watchdog Error */
35
36#endif