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
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  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 from m5.params import *
  28 from m5.proxy import *
  29
  30 from m5.objects.BadDevice import BadDevice
  31 from m5.objects.Device import BasicPioDevice
  32 from m5.objects.Platform import Platform
  33 from m5.objects.Uart import Uart8250
  34
  35 class MaltaCChip(BasicPioDevice):
  36     type = 'MaltaCChip'
  37     cxx_header = "dev/mips/malta_cchip.hh"
  38     malta = Param.Malta(Parent.any, "Malta")
  39
  40 class MaltaIO(BasicPioDevice):
  41     type = 'MaltaIO'
  42     cxx_header = "dev/mips/malta_io.hh"
  43     time = Param.Time('01/01/2009',
  44         "System time to use (0 for actual time, default is 1/1/06)")
  45     year_is_bcd = Param.Bool(False,
  46             "The RTC should interpret the year as a BCD value")
  47     malta = Param.Malta(Parent.any, "Malta")
  48     frequency = Param.Frequency('1024Hz', "frequency of interrupts")
  49
  50 class Malta(Platform):
  51     type = 'Malta'
  52     cxx_header = "dev/mips/malta.hh"
  53     system = Param.System(Parent.any, "system")
  54     cchip = MaltaCChip(pio_addr=0x801a0000000)
  55     io = MaltaIO(pio_addr=0x801fc000000)
  56     uart = Uart8250(pio_addr=0xBFD003F8)
  57
  58     # Attach I/O devices to specified bus object.  Can't do this
  59     # earlier, since the bus object itself is typically defined at the
  60     # System level.
  61     def attachIO(self, bus):
  62         self.cchip.pio = bus.master
  63         self.io.pio = bus.master
  64         self.uart.pio = bus.master