Initial revision

1 files changed, 48 insertions, 0 deletions

diff --git a/board/w7o/watchdog.c b/board/w7o/watchdog.c
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+/*
+ * (C) Copyright 2001
+ * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * W7O board level hardware watchdog.
+ */
+#include <common.h>
+#include <config.h>
+
+#ifdef CONFIG_HW_WATCHDOG
+#include <watchdog.h>
+
+void hw_watchdog_reset(void)
+{
+    volatile ushort *hwd = (ushort *)(CFG_W7O_EBC_PB7CR & 0xfff00000);
+
+    /*
+     * Read the LMG's hwd register and toggle the
+     * watchdog bit to reset it.   On the LMC, just
+     * reading it is enough, but toggling the bit
+     * doen't hurt either.
+     */
+    *hwd = *hwd ^ 0x8000;
+
+} /* hw_watchdog_reset() */
+
+#endif /* CONFIG_HW_WATCHDOG */
+