From 843a2654bce74192de2b5a43474fdc27a572ab40 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Fri, 27 Mar 2009 23:26:42 +0100 Subject: at91sam9: add watchdog support Signed-off-by: Nicolas Ferre Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- include/asm-arm/arch-at91/at91_wdt.h | 38 ++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 include/asm-arm/arch-at91/at91_wdt.h (limited to 'include') diff --git a/include/asm-arm/arch-at91/at91_wdt.h b/include/asm-arm/arch-at91/at91_wdt.h new file mode 100644 index 0000000000..7e18537cfb --- /dev/null +++ b/include/asm-arm/arch-at91/at91_wdt.h @@ -0,0 +1,38 @@ +/* + * [origin: Linux kernel arch/arm/mach-at91/include/mach/at91_wdt.h] + * + * Copyright (C) 2008 Jean-Christophe PLAGNIOL-VILLARD + * Copyright (C) 2007 Andrew Victor + * Copyright (C) 2007 Atmel Corporation. + * + * 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 -- cgit