d17529b046
The VE motherboard provides a set of system control registers through which various motherboard and coretile registers are accessed. Voltage regulators and oscillator (DLL/PLL) config are examples. These registers must be impleted to boot Linux 3.9+ kernels.
145 lines
4.6 KiB
C++
145 lines
4.6 KiB
C++
/*
|
|
* Copyright (c) 2010,2013 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"
|
|
|
|
/** @file
|
|
* This implements the simple real view registers on a PBXA9
|
|
*/
|
|
|
|
class RealViewCtrl : public BasicPioDevice
|
|
{
|
|
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)
|
|
|
|
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.
|
|
*/
|
|
virtual Tick read(PacketPtr pkt);
|
|
|
|
/**
|
|
* All writes are simply ignored.
|
|
* @param pkt The memory request.
|
|
* @param data the data
|
|
*/
|
|
virtual Tick write(PacketPtr pkt);
|
|
|
|
|
|
virtual void serialize(std::ostream &os);
|
|
virtual void unserialize(Checkpoint *cp, const std::string §ion);
|
|
};
|
|
|
|
|
|
#endif // __DEV_ARM_RV_HH__
|