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diff --git a/src/dev/x86/south_bridge/south_bridge.hh b/src/dev/x86/south_bridge/south_bridge.hh
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+++ b/src/dev/x86/south_bridge/south_bridge.hh
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+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __DEV_X86_SOUTH_BRIDGE_SOUTH_BRIDGE_HH__
+#define __DEV_X86_SOUTH_BRIDGE_SOUTH_BRIDGE_HH__
+
+#include "base/range_map.hh"
+#include "dev/io_device.hh"
+#include "dev/x86/south_bridge/cmos.hh"
+#include "dev/x86/south_bridge/i8254.hh"
+#include "dev/x86/south_bridge/i8259.hh"
+#include "dev/x86/south_bridge/speaker.hh"
+#include "dev/x86/south_bridge/sub_device.hh"
+#include "params/SouthBridge.hh"
+
+class SouthBridge : public PioDevice
+{
+  protected:
+    // PICs
+    X86ISA::I8259 pic1;
+    X86ISA::I8259 pic2;
+
+    // I8254 Programmable Interval Timer
+    X86ISA::I8254 pit;
+
+    // CMOS apperature
+    X86ISA::Cmos cmos;
+
+    // PC speaker
+    X86ISA::Speaker speaker;
+
+    AddrRangeList rangeList;
+
+    typedef range_map<Addr, X86ISA::SubDevice *> RangeMap;
+    typedef RangeMap::iterator RangeMapIt;
+    RangeMap rangeMap;
+
+
+    void addDevice(X86ISA::SubDevice &);
+
+  public:
+    void addressRanges(AddrRangeList &range_list);
+
+    Tick read(PacketPtr pkt);
+    Tick write(PacketPtr pkt);
+
+    typedef SouthBridgeParams Params;
+    SouthBridge(const Params *p);
+
+    const Params *
+    params() const
+    {
+        return dynamic_cast<const Params *>(_params);
+    }
+};
+
+#endif //__DEV_X86_SOUTH_BRIDGE_SOUTH_BRIDGE_HH__