| /* |
| * 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. |
| * |
| * 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/rv_ctrl.hh" |
| #include "mem/packet.hh" |
| #include "mem/packet_access.hh" |
| |
| RealViewCtrl::RealViewCtrl(Params *p) |
| : BasicPioDevice(p), flags(0) |
| { |
| pioSize = 0xD4; |
| } |
| |
| Tick |
| RealViewCtrl::read(PacketPtr pkt) |
| { |
| assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); |
| assert(pkt->getSize() == 4); |
| Addr daddr = pkt->getAddr() - pioAddr; |
| pkt->allocate(); |
| |
| switch(daddr) { |
| case ProcId0: |
| pkt->set(params()->proc_id0); |
| break; |
| case ProcId1: |
| pkt->set(params()->proc_id1); |
| break; |
| case Clock24: |
| Tick clk; |
| clk = SimClock::Float::MHz * curTick() * 24; |
| pkt->set((uint32_t)(clk)); |
| break; |
| case Clock100: |
| Tick clk100; |
| clk100 = SimClock::Float::MHz * curTick() * 100; |
| pkt->set((uint32_t)(clk100)); |
| break; |
| case Flash: |
| pkt->set<uint32_t>(0); |
| break; |
| case Clcd: |
| pkt->set<uint32_t>(0x00001F00); |
| break; |
| case Osc0: |
| pkt->set<uint32_t>(0x00012C5C); |
| break; |
| case Osc1: |
| pkt->set<uint32_t>(0x00002CC0); |
| break; |
| case Osc2: |
| pkt->set<uint32_t>(0x00002C75); |
| break; |
| case Osc3: |
| pkt->set<uint32_t>(0x00020211); |
| break; |
| case Osc4: |
| pkt->set<uint32_t>(0x00002C75); |
| break; |
| case Lock: |
| pkt->set<uint32_t>(sysLock); |
| break; |
| case Flags: |
| pkt->set<uint32_t>(flags); |
| break; |
| case IdReg: |
| pkt->set<uint32_t>(params()->idreg); |
| break; |
| case CfgStat: |
| pkt->set<uint32_t>(1); |
| break; |
| default: |
| warn("Tried to read RealView I/O at offset %#x that doesn't exist\n", |
| daddr); |
| break; |
| } |
| pkt->makeAtomicResponse(); |
| return pioDelay; |
| |
| } |
| |
| Tick |
| RealViewCtrl::write(PacketPtr pkt) |
| { |
| assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); |
| |
| Addr daddr = pkt->getAddr() - pioAddr; |
| switch (daddr) { |
| case Flash: |
| case Clcd: |
| case Osc0: |
| case Osc1: |
| case Osc2: |
| case Osc3: |
| case Osc4: |
| break; |
| case Lock: |
| sysLock.lockVal = pkt->get<uint16_t>(); |
| break; |
| case Flags: |
| flags = pkt->get<uint32_t>(); |
| break; |
| case FlagsClr: |
| flags = 0; |
| break; |
| default: |
| warn("Tried to write RVIO at offset %#x that doesn't exist\n", |
| daddr); |
| break; |
| } |
| pkt->makeAtomicResponse(); |
| return pioDelay; |
| } |
| |
| void |
| RealViewCtrl::serialize(std::ostream &os) |
| { |
| SERIALIZE_SCALAR(flags); |
| } |
| |
| void |
| RealViewCtrl::unserialize(Checkpoint *cp, const std::string §ion) |
| { |
| UNSERIALIZE_SCALAR(flags); |
| } |
| |
| RealViewCtrl * |
| RealViewCtrlParams::create() |
| { |
| return new RealViewCtrl(this); |
| } |