src/dev/mips/Malta.py

   1 # Copyright (c) 2007 The Regents of The University of Michigan
   2 # All rights reserved.
   3 #
   4 # Redistribution and use in source and binary forms, with or without
   5 # modification, are permitted provided that the following conditions are
   6 # met: redistributions of source code must retain the above copyright
   7 # notice, this list of conditions and the following disclaimer;
   8 # redistributions in binary form must reproduce the above copyright
   9 # notice, this list of conditions and the following disclaimer in the
  10 # documentation and/or other materials provided with the distribution;
  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  18 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  19 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  21 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27 # Authors: Korey Sewell
  28
  29 from m5.params import *
  30 from m5.proxy import *
  31
  32 from BadDevice import BadDevice
  33 from Device import BasicPioDevice
  34 from Platform import Platform
  35 from Uart import Uart8250
  36
  37 class MaltaCChip(BasicPioDevice):
  38     type = 'MaltaCChip'
  39     cxx_header = "dev/mips/malta_cchip.hh"
  40     malta = Param.Malta(Parent.any, "Malta")
  41
  42 class MaltaIO(BasicPioDevice):
  43     type = 'MaltaIO'
  44     cxx_header = "dev/mips/malta_io.hh"
  45     time = Param.Time('01/01/2009',
  46         "System time to use (0 for actual time, default is 1/1/06)")
  47     year_is_bcd = Param.Bool(False,
  48             "The RTC should interpret the year as a BCD value")
  49     malta = Param.Malta(Parent.any, "Malta")
  50     frequency = Param.Frequency('1024Hz', "frequency of interrupts")
  51
  52 class Malta(Platform):
  53     type = 'Malta'
  54     cxx_header = "dev/mips/malta.hh"
  55     system = Param.System(Parent.any, "system")
  56     cchip = MaltaCChip(pio_addr=0x801a0000000)
  57     io = MaltaIO(pio_addr=0x801fc000000)
  58     uart = Uart8250(pio_addr=0xBFD003F8)
  59
  60     # Attach I/O devices to specified bus object.  Can't do this
  61     # earlier, since the bus object itself is typically defined at the
  62     # System level.
  63     def attachIO(self, bus):
  64         self.cchip.pio = bus.master
  65         self.io.pio = bus.master
  66         self.uart.pio = bus.master