/* * [origin: Linux kernel arch/arm/mach-at91/include/mach/at91_wdt.h] * * Copyright (C) 2008 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> * 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 0x00 /* Watchdog Control Register */ #define AT91_WDT_WDRSTT (1 << 0) /* Restart */ #define AT91_WDT_KEY (0xa5 << 24) /* KEY Password */ #define AT91_WDT_MR 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 0x08 /* Watchdog Status Register */ #define AT91_WDT_WDUNF (1 << 0) /* Watchdog Underflow */ #define AT91_WDT_WDERR (1 << 1) /* Watchdog Error */ #ifndef __ASSEMBLY__ // SPDX-License-Identifier: BSD-1-Clause /* * Copyright (c) 2006, Atmel Corporation */ #include <asm-generic/io.h> static inline void at91_wdt_disable(void __iomem *wdt_base) { u32 reg = readl(wdt_base + AT91_WDT_MR); reg |= AT91_WDT_WDDIS; writel(reg, wdt_base + AT91_WDT_MR); } #endif /* __ASSEMBLY__ */ #endif