SouthBridge.py revision 8323
1# Copyright (c) 2008 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: Gabe Black 28 29from m5.params import * 30from m5.proxy import * 31from Cmos import Cmos 32from I8042 import I8042 33from I82094AA import I82094AA 34from I8237 import I8237 35from I8254 import I8254 36from I8259 import I8259 37from Ide import IdeController 38from PcSpeaker import PcSpeaker 39from X86IntPin import X86IntLine 40from m5.SimObject import SimObject 41 42def x86IOAddress(port): 43 IO_address_space_base = 0x8000000000000000 44 return IO_address_space_base + port; 45 46class SouthBridge(SimObject): 47 type = 'SouthBridge' 48 pio_latency = Param.Latency('1ns', "Programmed IO latency in simticks") 49 platform = Param.Platform(Parent.any, "Platform this device is part of") 50 51 _pic1 = I8259(pio_addr=x86IOAddress(0x20), mode='I8259Master') 52 _pic2 = I8259(pio_addr=x86IOAddress(0xA0), mode='I8259Slave') 53 _cmos = Cmos(pio_addr=x86IOAddress(0x70)) 54 _dma1 = I8237(pio_addr=x86IOAddress(0x0)) 55 _keyboard = I8042(data_port=x86IOAddress(0x60), \ 56 command_port=x86IOAddress(0x64)) 57 _pit = I8254(pio_addr=x86IOAddress(0x40)) 58 _speaker = PcSpeaker(pio_addr=x86IOAddress(0x61)) 59 _io_apic = I82094AA(pio_addr=0xFEC00000) 60 61 pic1 = Param.I8259(_pic1, "Master PIC") 62 pic2 = Param.I8259(_pic2, "Slave PIC") 63 cmos = Param.Cmos(_cmos, "CMOS memory and real time clock device") 64 dma1 = Param.I8237(_dma1, "The first dma controller") 65 keyboard = Param.I8042(_keyboard, "The keyboard controller") 66 pit = Param.I8254(_pit, "Programmable interval timer") 67 speaker = Param.PcSpeaker(_speaker, "PC speaker") 68 io_apic = Param.I82094AA(_io_apic, "I/O APIC") 69 70 # IDE controller 71 ide = IdeController(disks=[], pci_func=0, pci_dev=4, pci_bus=0) 72 ide.BAR0 = 0x1f0 73 ide.BAR0LegacyIO = True 74 ide.BAR1 = 0x3f4 75 ide.BAR1Size = '3B' 76 ide.BAR1LegacyIO = True 77 ide.BAR2 = 0x170 78 ide.BAR2LegacyIO = True 79 ide.BAR3 = 0x374 80 ide.BAR3Size = '3B' 81 ide.BAR3LegacyIO = True 82 ide.BAR4 = 1 83 ide.Command = 0 84 ide.ProgIF = 0x80 85 ide.InterruptLine = 14 86 ide.InterruptPin = 1 87 88 def attachIO(self, bus): 89 # Route interupt signals 90 self.int_lines = \ 91 [X86IntLine(source=self.pic1.output, sink=self.io_apic.pin(0)), 92 X86IntLine(source=self.pic2.output, sink=self.pic1.pin(2)), 93 X86IntLine(source=self.cmos.int_pin, sink=self.pic2.pin(0)), 94 X86IntLine(source=self.pit.int_pin, sink=self.pic1.pin(0)), 95 X86IntLine(source=self.pit.int_pin, sink=self.io_apic.pin(2)), 96 X86IntLine(source=self.keyboard.keyboard_int_pin, 97 sink=self.io_apic.pin(1)), 98 X86IntLine(source=self.keyboard.mouse_int_pin, 99 sink=self.io_apic.pin(12))] 100 # Tell the devices about each other 101 self.pic1.slave = self.pic2 102 self.speaker.i8254 = self.pit 103 self.io_apic.external_int_pic = self.pic1 104 # Connect to the bus 105 self.cmos.pio = bus.port 106 self.dma1.pio = bus.port 107 self.ide.pio = bus.port 108 self.keyboard.pio = bus.port 109 self.pic1.pio = bus.port 110 self.pic2.pio = bus.port 111 self.pit.pio = bus.port 112 self.speaker.pio = bus.port 113 self.io_apic.pio = bus.port 114 self.io_apic.int_port = bus.port 115