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-rw-r--r--arch/blackfin/cpu/watchdog.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/blackfin/cpu/watchdog.c b/arch/blackfin/cpu/watchdog.c
new file mode 100644
index 0000000..1886bda
--- /dev/null
+++ b/arch/blackfin/cpu/watchdog.c
@@ -0,0 +1,23 @@
+/*
+ * watchdog.c - driver for Blackfin on-chip watchdog
+ *
+ * Copyright (c) 2007-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/blackfin.h>
+
+void hw_watchdog_reset(void)
+{
+ bfin_write_WDOG_STAT(0);
+}
+
+void hw_watchdog_init(void)
+{
+ bfin_write_WDOG_CNT(5 * get_sclk()); /* 5 second timeout */
+ hw_watchdog_reset();
+ bfin_write_WDOG_CTL(0x0);
+}