Subversion Repositories openrisc

#==============================================================================

##

##      sim.S

##

##      Simulator hardware setup

##

##=============================================================================

#####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

## Contributors:        nickg

## Date:        1997-11-11

## Purpose:     Simulator hardware setup

## Description: This file contains any code needed to initialize the

##              hardware on the PowerPC simulator.

##

######DESCRIPTIONEND####

##

##=============================================================================

#include 

#include 

#------------------------------------------------------------------------------

        .globl  hal_hardware_init

hal_hardware_init:

#if 0

        # Set up the BAT registers to cover same address spaces

        # ibat0

        # base addr 0xfff00000

        # length 1M

        # WIMG = 0000

        # covers ROM

        lwi     r4,0xfff0001f

        mtibatu 0,r4

        lwi     r4,0xfff00002

        mtibatl 0,r4

        # ibat1

        # base addr 0x00000000

        # length 256M

        # WIMG = 0000

        # covers DRAM and slots

        lwi     r4,0x00001fff

        mtibatu 1,r4

        lwi     r4,0x00000002

        mtibatl 1,r4

        # dbat0

        # base addr 0xfff00000

        # length 256M

        # WIMG = 0101

        # covers ROM for data access

        lwi     r4,0xfff01fff

        mtdbatu 0,r4

        lwi     r4,0xfff0002a

        mtdbatl 0,r4

        # dbat1

        # base addr 0x00000000

        # length 256M

        # WIMG = 0000

        # covers DRAM and slots

        lwi     r4,0x00001fff

        mtdbatu 1,r4

        lwi     r4,0x00000002

        mtdbatl 1,r4

        # Enable translation in the MSR

        mfmsr   r3

        lwi     r4,0x00000030

        or      r3,r3,r4

        mtmsr   r3

#endif

        blr

#------------------------------------------------------------------------------

# end of sim.S