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diff --git a/include/amba.h b/include/amba.h
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+/**
+ * @file
+ * @defgroup amba AMBA Driver Handler
+ * @ingroup sparc_leon3
+ * @brief AMBA Plag & Play Bus Driver Macros
+ */
+
+/*
+ *  AMBA Plag & Play Bus Driver Macros
+ *
+ *  Macros used for AMBA Plug & Play bus scanning
+ *
+ *  COPYRIGHT (c) 2004.
+ *  Gaisler Research
+ *
+ *  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.
+ */
+
+#ifndef __AMBA_H__
+#define __AMBA_H__
+
+#define LEON3_IO_AREA 0xfff00000
+#define LEON3_CONF_AREA 0xff000
+#define LEON3_AHB_SLAVE_CONF_AREA (1 << 11)
+
+#define LEON3_AHB_CONF_WORDS 8
+#define LEON3_APB_CONF_WORDS 2
+#define LEON3_AHB_MASTERS 64
+#define LEON3_AHB_SLAVES 64
+#define LEON3_APB_SLAVES 16
+
+#include <ambapp.h>
+#include <grlib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The AMBA Plug&Play info of the bus that the LEON3 sits on */
+extern struct ambapp_bus ambapp_plb;
+
+void amba_initialize(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __AMBA_H__ */