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40 #ifndef __DEV_ARM_RV_HH__
41 #define __DEV_ARM_RV_HH__
43 #include "base/bitunion.hh"
44 #include "dev/io_device.hh"
45 #include "params/RealViewCtrl.hh"
46 #include "params/RealViewOsc.hh"
49 * This implements the simple real view registers on a PBXA9
52 class RealViewCtrl : public BasicPioDevice
73 Device(RealViewCtrl &parent, DeviceFunc func,
74 uint8_t site, uint8_t pos, uint8_t dcc, uint16_t dev)
76 parent.registerDevice(func, site, pos, dcc, dev, this);
81 virtual uint32_t read() const = 0;
82 virtual void write(uint32_t value) = 0;
126 BitUnion32(SysLockReg)
127 Bitfield<15,0> lockVal;
129 EndBitUnion(SysLockReg)
131 BitUnion32(CfgCtrlReg)
133 Bitfield<15, 12> pos;
134 Bitfield<17, 16> site;
135 Bitfield<25, 20> func;
136 Bitfield<29, 26> dcc;
139 EndBitUnion(CfgCtrlReg)
141 static const uint32_t CFG_CTRL_ADDR_MASK = 0x3fffffffUL;
145 /** This register is used for smp booting.
146 * The primary cpu writes the secondary start address here before
147 * sends it a soft interrupt. The secondary cpu reads this register and if
148 * it's non-zero it jumps to the address
152 /** This register contains the result from a system control reg access
157 typedef RealViewCtrlParams Params;
161 return dynamic_cast<const Params *>(_params);
164 * The constructor for RealView just registers itself with the MMU.
165 * @param p params structure
167 RealViewCtrl(Params *p);
170 * Handle a read to the device
171 * @param pkt The memory request.
172 * @param data Where to put the data.
174 Tick read(PacketPtr pkt) override;
177 * All writes are simply ignored.
178 * @param pkt The memory request.
179 * @param data the data
181 Tick write(PacketPtr pkt) override;
183 void serialize(CheckpointOut &cp) const override;
184 void unserialize(CheckpointIn &cp) override;
187 void registerDevice(DeviceFunc func, uint8_t site, uint8_t pos,
188 uint8_t dcc, uint16_t dev,
192 std::map<uint32_t, Device *> devices;
196 * This is an implementation of a programmable oscillator on the that
197 * can be configured through the RealView/Versatile Express
198 * configuration interface.
200 * See ARM DUI 0447J (ARM Motherboard Express uATX -- V2M-P1).
203 : public ClockDomain, RealViewCtrl::Device
206 RealViewOsc(RealViewOscParams *p);
207 virtual ~RealViewOsc() {};
209 void startup() override;
211 void serialize(CheckpointOut &cp) const override;
212 void unserialize(CheckpointIn &cp) override;
214 public: // RealViewCtrl::Device interface
215 uint32_t read() const override;
216 void write(uint32_t freq) override;
219 void clockPeriod(Tick clock_period);
223 #endif // __DEV_ARM_RV_HH__