Patch from "John M. Mills" <jmills@tga.com> with subsequent cleanup from

Ralf Corsepius <corsepiu@faw.uni-ulm.de> that adds initial Hitachi SH-2
support to RTEMS.  Ralf's comments are:

    Changes:
    ------
    1. SH-Port:
    * Many files renamed.
    * CONSOLE_DEVNAME  and MHZ defines removed from libcpu.
    * console.c moved to libbsp/sh/shared, build in libbsp/sh/<BSP>/console
      applying VPATH.
    * CONSOLE_DEVNAME made BSP-specific, replacement is defined in bsp.h
    * MHZ define replaced with HZ (extendent resolution) in custom/*.cfg
    * -DHZ=HZ  used in bspstart.c, only
    * Makefile variable HZ used in bsp-dependent directories only.

    2. SH1-Port
    * clock-driver rewritten to provide better resolution for odd CPU
      frequencies. This driver is only partially tested on hardware, ie.
      sightly experimental, but I don't expect severe problems with it.
    * Polling SCI-driver added. This driver is experimental and completly
      untested yet. Therefore it is not yet used for the console (/dev/console
      is still pointing to /dev/null, cf. gensh1/bsp.h).
    * minor changes to the timer driver
    * SH1 specific delay()/CPU_delay() now is implemented as a function

    3. SH2-Port
    * Merged
    * IMO, the code is still in its infancy. Therefore I have interspersed
      comments (FIXME) it for items which I think John should look after.
    * sci and console drivers partially rewritten and extended (John, I hope
      you don't mind).
    * Copyright notices are not yet adapted

1 files changed, 130 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sh/gensh2/include/coverhd.h b/c/src/lib/libbsp/sh/gensh2/include/coverhd.h
new file mode 100644
index 0000000000..005e19455a
--- /dev/null
+++ b/c/src/lib/libbsp/sh/gensh2/include/coverhd.h
@@ -0,0 +1,130 @@
+/*  coverhd.h
+ *
+ *  This include file has defines to represent the overhead associated
+ *  with calling a particular directive from C.  These are used in the
+ *  Timing Test Suite to ignore the overhead required to pass arguments
+ *  to directives.  On some CPUs and/or target boards, this overhead
+ *  is significant and makes it difficult to distinguish internal
+ *  RTEMS execution time from that used to call the directive.
+ *  This file should be updated after running the C overhead timing
+ *  test.  Once this update has been performed, the RTEMS Time Test
+ *  Suite should be rebuilt to account for these overhead times in the
+ *  timing results.
+ *
+ *  NOTE:  If these are all zero, then the times reported include all
+ *         all calling overhead including passing of arguments.
+ *
+ *
+ * These are the figures tmoverhd.exe reported with gcc-2.95.1 -O4 
+ * on a Hitachi SH7045F Evaluation Board with SH7045F at 29 MHz
+ *
+ * These results are assumed to be applicable to most SH7045/29MHz boards
+ *
+ *  Author: John M.Mills (jmills@tga.com)
+ *
+ *  COPYRIGHT (c) 1999. TGA Technologies, Inc., Norcross, GA, USA
+ *
+ *  This program 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.
+ * 
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  This file may be copied and distributed in accordance
+ *  the above-referenced license. It is provided for critique and
+ *  developmental purposes without any warranty nor representation
+ *  by the authors or by TGA Technologies.
+ *
+ *  $Id$
+ */
+
+#ifndef __COVERHD_h
+#define __COVERHD_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CALLING_OVERHEAD_INITIALIZE_EXECUTIVE      1
+#define CALLING_OVERHEAD_SHUTDOWN_EXECUTIVE        1
+#define CALLING_OVERHEAD_TASK_CREATE               2
+#define CALLING_OVERHEAD_TASK_IDENT                1
+#define CALLING_OVERHEAD_TASK_START                1
+#define CALLING_OVERHEAD_TASK_RESTART              1
+#define CALLING_OVERHEAD_TASK_DELETE               1
+#define CALLING_OVERHEAD_TASK_SUSPEND              1
+#define CALLING_OVERHEAD_TASK_RESUME               1
+#define CALLING_OVERHEAD_TASK_SET_PRIORITY         1
+#define CALLING_OVERHEAD_TASK_MODE                 1
+#define CALLING_OVERHEAD_TASK_GET_NOTE             1
+#define CALLING_OVERHEAD_TASK_SET_NOTE             1
+#define CALLING_OVERHEAD_TASK_WAKE_WHEN            2
+#define CALLING_OVERHEAD_TASK_WAKE_AFTER           1
+#define CALLING_OVERHEAD_INTERRUPT_CATCH           1
+#define CALLING_OVERHEAD_CLOCK_GET                 3
+#define CALLING_OVERHEAD_CLOCK_SET                 2
+#define CALLING_OVERHEAD_CLOCK_TICK                1
+
+#define CALLING_OVERHEAD_TIMER_CREATE              1
+#define CALLING_OVERHEAD_TIMER_IDENT               1
+#define CALLING_OVERHEAD_TIMER_DELETE              1
+#define CALLING_OVERHEAD_TIMER_FIRE_AFTER          1
+#define CALLING_OVERHEAD_TIMER_FIRE_WHEN           3
+#define CALLING_OVERHEAD_TIMER_RESET               1
+#define CALLING_OVERHEAD_TIMER_CANCEL              1
+#define CALLING_OVERHEAD_SEMAPHORE_CREATE          1
+#define CALLING_OVERHEAD_SEMAPHORE_IDENT           1
+#define CALLING_OVERHEAD_SEMAPHORE_DELETE          1
+#define CALLING_OVERHEAD_SEMAPHORE_OBTAIN          1
+#define CALLING_OVERHEAD_SEMAPHORE_RELEASE         1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_CREATE      1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_IDENT       1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_DELETE      1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_SEND        1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT      1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_BROADCAST   1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_RECEIVE     1
+#define CALLING_OVERHEAD_MESSAGE_QUEUE_FLUSH       1
+
+#define CALLING_OVERHEAD_EVENT_SEND                1
+#define CALLING_OVERHEAD_EVENT_RECEIVE             1
+#define CALLING_OVERHEAD_SIGNAL_CATCH              1
+#define CALLING_OVERHEAD_SIGNAL_SEND               1
+#define CALLING_OVERHEAD_PARTITION_CREATE          2
+#define CALLING_OVERHEAD_PARTITION_IDENT           1
+#define CALLING_OVERHEAD_PARTITION_DELETE          1
+#define CALLING_OVERHEAD_PARTITION_GET_BUFFER      1
+#define CALLING_OVERHEAD_PARTITION_RETURN_BUFFER   1
+#define CALLING_OVERHEAD_REGION_CREATE             2
+#define CALLING_OVERHEAD_REGION_IDENT              1
+#define CALLING_OVERHEAD_REGION_DELETE             1
+#define CALLING_OVERHEAD_REGION_GET_SEGMENT        2
+#define CALLING_OVERHEAD_REGION_RETURN_SEGMENT     1
+#define CALLING_OVERHEAD_PORT_CREATE               2
+#define CALLING_OVERHEAD_PORT_IDENT                1
+#define CALLING_OVERHEAD_PORT_DELETE               1
+#define CALLING_OVERHEAD_PORT_EXTERNAL_TO_INTERNAL 1
+#define CALLING_OVERHEAD_PORT_INTERNAL_TO_EXTERNAL 1
+
+#define CALLING_OVERHEAD_IO_INITIALIZE             1
+#define CALLING_OVERHEAD_IO_OPEN                   1
+#define CALLING_OVERHEAD_IO_CLOSE                  1
+#define CALLING_OVERHEAD_IO_READ                   1
+#define CALLING_OVERHEAD_IO_WRITE                  1
+#define CALLING_OVERHEAD_IO_CONTROL                1
+#define CALLING_OVERHEAD_FATAL_ERROR_OCCURRED      1
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CREATE     1
+#define CALLING_OVERHEAD_RATE_MONOTONIC_IDENT      1
+#define CALLING_OVERHEAD_RATE_MONOTONIC_DELETE     1
+#define CALLING_OVERHEAD_RATE_MONOTONIC_CANCEL     1
+#define CALLING_OVERHEAD_RATE_MONOTONIC_PERIOD     1
+#define CALLING_OVERHEAD_MULTIPROCESSING_ANNOUNCE  1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */