1 files changed, 39 insertions, 0 deletions
diff --git a/bsps/powerpc/mpc55xxevb/start/start-watchdog.c b/bsps/powerpc/mpc55xxevb/start/start-watchdog.c
new file mode 100644
index 0000000000..7cf36ef02f
--- /dev/null
+++ b/bsps/powerpc/mpc55xxevb/start/start-watchdog.c
@@ -0,0 +1,39 @@
+/**
+ * @file
+ *
+ * @ingroup mpc55xx
+ *
+ * @brief Watchdog initialization code.
+ */
+
+/*
+ * Copyright (c) 2011 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/start.h>
+#include <bsp/mpc55xx-config.h>
+
+BSP_START_TEXT_SECTION void mpc55xx_start_watchdog(void)
+{
+  #ifdef MPC55XX_NEEDS_LOW_LEVEL_INIT
+    #ifdef MPC55XX_HAS_SWT
+      /* Write keys to clear soft lock bit */
+      SWT.SR.R = 0x0000c520;
+      SWT.SR.R = 0x0000d928;
+
+      /* Clear watchdog enable (WEN) */
+      SWT.CR.R = 0x8000010A;
+    #endif
+  #endif
+}