new file mode 100644
--- /dev/null
+++ b/packages/hal/frv/frv400/current/include/hal_diag.h
@@ -0,0 +1,94 @@
+#ifndef CYGONCE_HAL_DIAG_H
+#define CYGONCE_HAL_DIAG_H
+
+/*=============================================================================
+//
+//      hal_diag.h
+//
+//      HAL Support for Kernel Diagnostic Routines
+//
+//=============================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos 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; either version 2 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    nickg, gthomas
+// Contributors: nickg, gthomas
+// Date:         1998-09-11
+// Purpose:      HAL Support for Kernel Diagnostic Routines
+// Description:  Diagnostic routines for use during kernel development.
+// Usage:        #include <cyg/hal/hal_diag.h>
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================*/
+
+#include <pkgconf/hal.h>
+
+#include <cyg/infra/cyg_type.h>
+#include <cyg/hal/hal_if.h>
+
+/*---------------------------------------------------------------------------*/
+
+#if defined(CYGSEM_HAL_VIRTUAL_VECTOR_DIAG)
+
+#include <cyg/hal/hal_if.h>
+
+#define HAL_DIAG_INIT()          hal_if_diag_init()
+#define HAL_DIAG_WRITE_CHAR(_c_) hal_if_diag_write_char(_c_)
+#define HAL_DIAG_READ_CHAR(_c_)  hal_if_diag_read_char(&_c_)
+
+// Not the best place for this, but ...
+extern void hal_delay_us(cyg_int32 usecs);
+
+#define HAL_DELAY_US(n)          hal_delay_us(n);
+
+#else
+
+/*---------------------------------------------------------------------------*/
+/* functions implemented in hal_diag.c                                       */
+
+externC void hal_diag_init(void);
+externC void hal_diag_write_char(char c);
+externC void hal_diag_read_char(char *c);
+
+#define HAL_DIAG_INIT()          hal_diag_init()
+#define HAL_DIAG_WRITE_CHAR(_c_) hal_diag_write_char(_c_)
+#define HAL_DIAG_READ_CHAR(_c_)  hal_diag_read_char(&_c_)
+
+#endif
+
+/*---------------------------------------------------------------------------*/
+/* end of hal_diag.h                                                         */
+#endif /* CYGONCE_HAL_DIAG_H */