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/*
* Copyright (c) 2010,2013,2015 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
*/
#ifndef __DEV_ARM_RV_HH__
#define __DEV_ARM_RV_HH__
#include "base/bitunion.hh"
#include "dev/io_device.hh"
#include "params/RealViewCtrl.hh"
#include "params/RealViewOsc.hh"
/** @file
* This implements the simple real view registers on a PBXA9
*/
class RealViewCtrl : public BasicPioDevice
{
public:
enum DeviceFunc {
FUNC_OSC = 1,
FUNC_VOLT = 2,
FUNC_AMP = 3,
FUNC_TEMP = 4,
FUNC_RESET = 5,
FUNC_SCC = 6,
FUNC_MUXFPGA = 7,
FUNC_SHUTDOWN = 8,
FUNC_REBOOT = 9,
FUNC_DVIMODE = 11,
FUNC_POWER = 12,
FUNC_ENERGY = 13,
};
class Device
{
public:
Device(RealViewCtrl &parent, DeviceFunc func,
uint8_t site, uint8_t pos, uint8_t dcc, uint16_t dev)
{
parent.registerDevice(func, site, pos, dcc, dev, this);
}
virtual ~Device() {}
virtual uint32_t read() const = 0;
virtual void write(uint32_t value) = 0;
};
protected:
enum {
IdReg = 0x00,
SwReg = 0x04,
Led = 0x08,
Osc0 = 0x0C,
Osc1 = 0x10,
Osc2 = 0x14,
Osc3 = 0x18,
Osc4 = 0x1C,
Lock = 0x20,
Clock100 = 0x24,
CfgData1 = 0x28,
CfgData2 = 0x2C,
Flags = 0x30,
FlagsClr = 0x34,
NvFlags = 0x38,
NvFlagsClr = 0x3C,
ResetCtl = 0x40,
PciCtl = 0x44,
MciCtl = 0x48,
Flash = 0x4C,
Clcd = 0x50,
ClcdSer = 0x54,
Bootcs = 0x58,
Clock24 = 0x5C,
Misc = 0x60,
IoSel = 0x70,
ProcId0 = 0x84,
ProcId1 = 0x88,
CfgData = 0xA0,
CfgCtrl = 0xA4,
CfgStat = 0xA8,
TestOsc0 = 0xC0,
TestOsc1 = 0xC4,
TestOsc2 = 0xC8,
TestOsc3 = 0xCC,
TestOsc4 = 0xD0
};
// system lock value
BitUnion32(SysLockReg)
Bitfield<15,0> lockVal;
Bitfield<16> locked;
EndBitUnion(SysLockReg)
BitUnion32(CfgCtrlReg)
Bitfield<11, 0> dev;
Bitfield<15, 12> pos;
Bitfield<17, 16> site;
Bitfield<25, 20> func;
Bitfield<29, 26> dcc;
Bitfield<30> wr;
Bitfield<31> start;
EndBitUnion(CfgCtrlReg)
static const uint32_t CFG_CTRL_ADDR_MASK = 0x3fffffffUL;
SysLockReg sysLock;
/** This register is used for smp booting.
* The primary cpu writes the secondary start address here before
* sends it a soft interrupt. The secondary cpu reads this register and if
* it's non-zero it jumps to the address
*/
uint32_t flags;
/** This register contains the result from a system control reg access
*/
uint32_t scData;
public:
typedef RealViewCtrlParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
/**
* The constructor for RealView just registers itself with the MMU.
* @param p params structure
*/
RealViewCtrl(Params *p);
/**
* Handle a read to the device
* @param pkt The memory request.
* @param data Where to put the data.
*/
Tick read(PacketPtr pkt) override;
/**
* All writes are simply ignored.
* @param pkt The memory request.
* @param data the data
*/
Tick write(PacketPtr pkt) override;
void serialize(CheckpointOut &cp) const override;
void unserialize(CheckpointIn &cp) override;
public:
void registerDevice(DeviceFunc func, uint8_t site, uint8_t pos,
uint8_t dcc, uint16_t dev,
Device *handler);
protected:
std::map<uint32_t, Device *> devices;
};
/**
* This is an implementation of a programmable oscillator on the that
* can be configured through the RealView/Versatile Express
* configuration interface.
*
* See ARM DUI 0447J (ARM Motherboard Express uATX -- V2M-P1).
*/
class RealViewOsc
: public ClockDomain, RealViewCtrl::Device
{
public:
RealViewOsc(RealViewOscParams *p);
virtual ~RealViewOsc() {};
void startup() override;
void serialize(CheckpointOut &cp) const override;
void unserialize(CheckpointIn &cp) override;
public: // RealViewCtrl::Device interface
uint32_t read() const override;
void write(uint32_t freq) override;
protected:
void clockPeriod(Tick clock_period);
};
#endif // __DEV_ARM_RV_HH__
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