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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [powerpc/] [fads/] [v2_0/] [README] - Rev 27
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The FADS MPC860 board port for eCos was contributed by Kevin Hester
<khester@opticworks.com> and is partly based on the files from Motorola's
"Example Software Initializing the SMC as a UART" package (smc2.zip)
available at:
http://www.mot.com/SPS/RISC/netcomm/tools/index.html#MPC860_table
The eCos FADS board port is provided on an "as is" basis as unsupported code.
Red Hat does not maintain this code and does not guarantee its functionality
in any way.
All inquiries about this port should be directed to the 'ecos-discuss'
mailing list (see http://sourceware.cygnus.com/ecos/intouch.html for
details).
A few comments from Kevin:
----------------------------------------------------------------------------
GDB support is untested and I didn't include the GDB 'interrupt' via
the serial port support. It would be straightforward for someone to
add this.
You can also pass on that is was very easy to write this HAL - it only
took a day starting from the Cogent PPC HAL.
I can't promise support, but I will occasionally download from the CVS
database and run it on our card.
Usage notes:
- The startup code in fads.S assumes that the build has been downloaded by
the mpc8bug tool included with the FADS board. An example usage would be:
- build a FADS build (RAM build, GDB support off)
- link your application with the kernel you previously built
- run the Motorola mpc8bug tool.
- issue a mcp8bug "LOAD foo.elf" command where foo is the application you
have linked
- issue a mpc8bug "GO" command
- your program should now be running, the diag port is the upper serial
port (SMC2)
- I haven't tried to run a "ROM" build. The "RAM" build works great. The
ROM build will need to have fads.S setup more of the memory controller.
- I haven't tested the GDB interface - I have successfully run using the
diag serial port and the example programs (such as "hello world"). GDB
support should work, with the exception of interrupt support.
- The basic serial driver I added is based on the free Motorolla sample code
included with the MPC860 board. It assumes the link to the development
station is via the SMC 2 port (the top serial port on the FADS board). This
code in quicc_smc.c should be generalized to support any SMC port.
----------------------------------------------------------------------------
//===========================================================================
//####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####
//===========================================================================
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