1 /* AT91SAM7 Watch Dog Timer code for OpenPCD / OpenPICC
2 * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <lib_AT91SAM7.h>
24 #include <os/system_irq.h>
30 static void wdt_irq(u_int32_t sr)
32 DEBUGPCRF("================> WATCHDOG EXPIRED !!!!!");
35 void wdt_restart(void)
37 AT91F_WDTRestart(AT91C_BASE_WDTC);
42 sysirq_register(AT91SAM7_SYSIRQ_WDT, &wdt_irq);
44 AT91F_WDTSetMode(AT91C_BASE_WDTC, (0xff << 16) |
45 AT91C_WDTC_WDDBGHLT | AT91C_WDTC_WDIDLEHLT |
48 AT91F_WDTSetMode(AT91C_BASE_WDTC, (0x80 << 16) |
49 AT91C_WDTC_WDRSTEN | 0x80);