linux/include/asm-arm/arch-at91/at91_wdt.h
Andrew Victor 0e5f82dda5 [ARM] 4421/1: AT91: Value of _KEY fields.
Use the actual value (0xA5) for the AT91_SHDW_KEY and AT91_WDT_KEY
register fields instead of a bitmask.

This is consistent with how AT91_RSTC_KEY is defined, and is easier to
use in code.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-06-03 17:52:35 +01:00

35 lines
1.3 KiB
C

/*
* include/asm-arm/arch-at91/at91_wdt.h
*
* Watchdog Timer (WDT) - System peripherals regsters.
* Based on AT91SAM9261 datasheet revision D.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef AT91_WDT_H
#define AT91_WDT_H
#define AT91_WDT_CR (AT91_WDT + 0x00) /* Watchdog Control Register */
#define AT91_WDT_WDRSTT (1 << 0) /* Restart */
#define AT91_WDT_KEY (0xa5 << 24) /* KEY Password */
#define AT91_WDT_MR (AT91_WDT + 0x04) /* Watchdog Mode Register */
#define AT91_WDT_WDV (0xfff << 0) /* Counter Value */
#define AT91_WDT_WDFIEN (1 << 12) /* Fault Interrupt Enable */
#define AT91_WDT_WDRSTEN (1 << 13) /* Reset Processor */
#define AT91_WDT_WDRPROC (1 << 14) /* Timer Restart */
#define AT91_WDT_WDDIS (1 << 15) /* Watchdog Disable */
#define AT91_WDT_WDD (0xfff << 16) /* Delta Value */
#define AT91_WDT_WDDBGHLT (1 << 28) /* Debug Halt */
#define AT91_WDT_WDIDLEHLT (1 << 29) /* Idle Halt */
#define AT91_WDT_SR (AT91_WDT + 0x08) /* Watchdog Status Register */
#define AT91_WDT_WDUNF (1 << 0) /* Watchdog Underflow */
#define AT91_WDT_WDERR (1 << 1) /* Watchdog Error */
#endif