ARM: Add I/O devices for booting linux

--HG--
rename : src/dev/arm/Versatile.py => src/dev/arm/RealView.py
rename : src/dev/arm/versatile.cc => src/dev/arm/realview.cc
rename : src/dev/arm/versatile.hh => src/dev/arm/realview.hh

1 files changed, 91 insertions, 0 deletions

diff --git a/src/dev/arm/amba_fake.cc b/src/dev/arm/amba_fake.cc
new file mode 100644
index 000000000..25206c674
--- /dev/null
+++ b/src/dev/arm/amba_fake.cc
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2010 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder.  You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Copyright (c) 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: Ali Saidi
+ */
+
+#include "base/trace.hh"
+#include "dev/arm/amba_fake.hh"
+#include "mem/packet.hh"
+#include "mem/packet_access.hh"
+
+AmbaFake::AmbaFake(const Params *p)
+    : AmbaDevice(p)
+{
+    pioSize = 0xfff;
+}
+
+Tick
+AmbaFake::read(PacketPtr pkt)
+{
+    assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+
+    Addr daddr = pkt->getAddr() - pioAddr;
+    pkt->allocate();
+
+    DPRINTF(AMBA, " read register %#x\n", daddr);
+
+    pkt->set<uint32_t>(0);
+    if (!readId(pkt) && !params()->ignore_access)
+        panic("Tried to read AmbaFake at offset %#x that doesn't exist\n", daddr);
+
+    pkt->makeAtomicResponse();
+    return pioDelay;
+}
+
+Tick
+AmbaFake::write(PacketPtr pkt)
+{
+
+    Addr daddr = pkt->getAddr() - pioAddr;
+    pkt->allocate();
+
+    if (!params()->ignore_access)
+        panic("Tried to write AmbaFake at offset %#x that doesn't exist\n", daddr);
+
+    pkt->makeAtomicResponse();
+    return pioDelay;
+}
+
+
+AmbaFake *
+AmbaFakeParams::create()
+{
+    return new AmbaFake(this);
+}