1 files changed, 42 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/watchdog.c b/src/vendorcode/google/chromeos/watchdog.c
new file mode 100644
index 0000000000..e4adf8a041
--- /dev/null
+++ b/src/vendorcode/google/chromeos/watchdog.c
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google Inc.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <elog.h>
+#include <reset.h>
+
+#include "chromeos.h"
+#include "symbols.h"
+
+#define WATCHDOG_TOMBSTONE_MAGIC	0x9d2f41a7
+
+void elog_add_watchdog_reset(void)
+{
+	if (readl(_watchdog_tombstone) == WATCHDOG_TOMBSTONE_MAGIC)
+		elog_add_event(ELOG_TYPE_ASYNC_HW_TIMER_EXPIRED);
+	writel(0, _watchdog_tombstone);
+}
+
+void reboot_from_watchdog(void)
+{
+	printk(BIOS_INFO, "Last reset was watchdog, reboot again to reset TPM!\n");
+	writel(WATCHDOG_TOMBSTONE_MAGIC, _watchdog_tombstone);
+	hard_reset();
+}