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
29from m5.params import *
30from m5.proxy import *
31
32from m5.objects.BadDevice import BadDevice
33from m5.objects.Device import BasicPioDevice
34from m5.objects.Platform import Platform
35from m5.objects.Uart import Uart8250
36
37class MaltaCChip(BasicPioDevice):
38    type = 'MaltaCChip'
39    cxx_header = "dev/mips/malta_cchip.hh"
40    malta = Param.Malta(Parent.any, "Malta")
41
42class 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
52class 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
67