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, 118 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/sh/sh7045/include/sh7_pfc.h b/c/src/lib/libcpu/sh/sh7045/include/sh7_pfc.h
new file mode 100644
index 0000000000..5be9ca8a5d
--- /dev/null
+++ b/c/src/lib/libcpu/sh/sh7045/include/sh7_pfc.h
@@ -0,0 +1,118 @@
+/*
+ * Bit values for the pin function controller of the Hitachi SH704x
+ *
+ * From Hitachi tutorials
+ *
+ *  Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and
+ *           Bernd Becker (becker@faw.uni-ulm.de)
+ *
+ *  COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
+ *
+ *  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.
+ *
+ *
+ *  COPYRIGHT (c) 1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#ifndef _sh7_pfc_h
+#define _sh7_pfc_h
+
+#include <rtems/score/iosh7045.h>
+
+/*
+ * Port B IO Register (PBIOR)
+ */
+#define PBIOR           PFC_PBIOR
+#define PB15IOR         0x8000
+#define PB14IOR         0x4000
+#define PB13IOR         0x2000
+#define PB12IOR         0x1000
+#define PB11IOR         0x0800
+#define PB10IOR         0x0400
+#define PB9IOR          0x0200
+#define PB8IOR          0x0100
+#define PB7IOR          0x0080
+#define PB6IOR          0x0040
+#define PB5IOR          0x0020
+#define PB4IOR          0x0010
+#define PB3IOR          0x0008
+#define PB2IOR          0x0004
+#define PB1IOR          0x0002
+#define PB0IOR          0x0001
+
+/*
+ * Port B Control Register (PBCR1)
+ */
+#define PBCR1           PFC_PBCR1
+#define PB15MD1         0x8000
+#define PB15MD0         0x4000
+#define PB14MD1         0x2000
+#define PB14MD0         0x1000
+#define PB13MD1         0x0800
+#define PB13MD0         0x0400
+#define PB12MD1         0x0200
+#define PB12MD0         0x0100
+#define PB11MD1         0x0080
+#define PB11MD0         0x0040
+#define PB10MD1         0x0020
+#define PB10MD0         0x0010
+#define PB9MD1          0x0008
+#define PB9MD0          0x0004
+#define PB8MD1          0x0002
+#define PB8MD0          0x0001
+
+#define PB15MD          PB15MD1|PB14MD0
+#define PB14MD          PB14MD1|PB14MD0
+#define PB13MD          PB13MD1|PB13MD0
+#define PB12MD          PB12MD1|PB12MD0
+#define PB11MD          PB11MD1|PB11MD0
+#define PB10MD          PB10MD1|PB10MD0
+#define PB9MD           PB9MD1|PB9MD0
+#define PB8MD           PB8MD1|PB8MD0
+
+#define PB_TXD1         PB11MD1
+#define PB_RXD1         PB10MD1
+#define PB_TXD0         PB9MD1
+#define PB_RXD0         PB8MD1
+
+/*
+ * Port B Control Register (PBCR2)
+ */
+#define PBCR2   PFC_PBCR2
+#define PB7MD1  0x8000
+#define PB7MD0  0x4000
+#define PB6MD1  0x2000
+#define PB6MD0  0x1000
+#define PB5MD1  0x0800
+#define PB5MD0  0x0400
+#define PB4MD1  0x0200
+#define PB4MD0  0x0100
+#define PB3MD1  0x0080
+#define PB3MD0  0x0040
+#define PB2MD1  0x0020
+#define PB2MD0  0x0010
+#define PB1MD1  0x0008
+#define PB1MD0  0x0004
+#define PB0MD1  0x0002
+#define PB0MD0  0x0001
+	
+#define PB7MD   PB7MD1|PB7MD0
+#define PB6MD   PB6MD1|PB6MD0
+#define PB5MD   PB5MD1|PB5MD0
+#define PB4MD   PB4MD1|PB4MD0
+#define PB3MD   PB3MD1|PB3MD0
+#define PB2MD   PB2MD1|PB2MD0
+#define PB1MD   PB1MD1|PB1MD0
+#define PB0MD   PB0MD1|PB0MD0
+
+#endif /* _sh7_pfc_h */