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+#
+#  $Id$
+#
+
+Notes about the MVME147 bsp
+
+MVME147 port for TNI - Telecom Bretagne
+by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)
+May 1996
+
+
+This bsp is essentially based on the mvme136 bsp.
+
+Summary of the modifications that were made:
+
+ * include
+ 
+   - bsp.h 
+      Peripheral Channel Controller memory mapping
+      Z8530 memory mapping
+ 
+ * startup
+ 
+   - bspstart.c
+      main () setup for VME roundrobin mode
+	      setup for the PCC interrupt vector base 
+   - bspclean.c
+      bsp_cleanup () disable timer 1 & 2 interruptions
+   - linkcmds set the RAM start (0x5000) and size (4Meg - 0x5000)
+   - setvec.c unchanged
+   - sbrk.c unchanged
+ 
+ * console
+ 
+   - console.c taken from the dmv152 bsp (Zilog Z8530)
+               with no modification
+ 
+ * clock
+ 
+   - ckinit.c entirely rewritten for the PCC tick timer 2
+ 
+ * timer
+ 
+   - timerisr.s and timer.c 
+     entirely rewritten for the PCC tick timer 1
+     now gives results un 6.25 us units (mininum timer delay,
+     suprising big grain)
+ 
+ * times
+ 
+   - updated results for the mvme147 (beware of the 6.25 us grain)
+
+ * Makefiles
+   
+   - compilation of shmsupp simply removed
+
+
+To be done:
+
+ * add VMEchip memory mapping to include/bsp.h
+
+ * update the overheads in coverhead.h 
+
+ * add support for serila ports 2,3 and 4.
+
+Other notes:
+
+ * There is no MP support (no more shmsupp) because I have no
+   experience of the VME bus. The mvme136 shared memory support
+   does not seem applicable on the VMEchip of the mvme147, so
+   I don't know where to start. Suggestions are welcome.
+
+ * All the timing tests and sp tests have been run except tmoverhd.
+   The test hangs during the pause (where the task should be suspended
+   until a return). Maybe the rtems_initialize_executive is no more
+   reentrant with this bsp. 
+
+Future work:
+
+ * Add gdb serial remote support.
+
+ * Shared memory support (I don't really need it, but I can do
+   it if it's simple).
+
+ * Message passing on VME bus, with Ada 95 annex E (distributed
+   systems) in mind.