1 files changed, 25 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/amba/ambapp_depth.c b/c/src/lib/libbsp/sparc/shared/amba/ambapp_depth.c
new file mode 100644
index 0000000000..02fa76743b
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/amba/ambapp_depth.c
@@ -0,0 +1,25 @@
+/*
+ *  AMBA Plug & Play routines
+ *
+ *  COPYRIGHT (c) 2011
+ *  Aeroflex Gaisler
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ */
+
+#include <ambapp.h>
+
+/* Get bus depth a device is located at */
+int ambapp_depth(struct ambapp_dev *dev)
+{
+  int depth = 0;
+
+  do {
+    dev = ambapp_find_parent(dev);
+    depth++;
+  } while (dev);
+
+  return depth - 1;
+}