rv_ctrl.hh (10905:a6ca6831e775) rv_ctrl.hh (11011:2ca6c68fdd6c)
1/*
1/*
2 * Copyright (c) 2010,2013 ARM Limited
2 * Copyright (c) 2010,2013,2015 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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38 */
39
40#ifndef __DEV_ARM_RV_HH__
41#define __DEV_ARM_RV_HH__
42
43#include "base/bitunion.hh"
44#include "dev/io_device.hh"
45#include "params/RealViewCtrl.hh"
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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38 */
39
40#ifndef __DEV_ARM_RV_HH__
41#define __DEV_ARM_RV_HH__
42
43#include "base/bitunion.hh"
44#include "dev/io_device.hh"
45#include "params/RealViewCtrl.hh"
46#include "params/RealViewOsc.hh"
46
47/** @file
48 * This implements the simple real view registers on a PBXA9
49 */
50
51class RealViewCtrl : public BasicPioDevice
52{
47
48/** @file
49 * This implements the simple real view registers on a PBXA9
50 */
51
52class RealViewCtrl : public BasicPioDevice
53{
54 public:
55 enum DeviceFunc {
56 FUNC_OSC = 1,
57 FUNC_VOLT = 2,
58 FUNC_AMP = 3,
59 FUNC_TEMP = 4,
60 FUNC_RESET = 5,
61 FUNC_SCC = 6,
62 FUNC_MUXFPGA = 7,
63 FUNC_SHUTDOWN = 8,
64 FUNC_REBOOT = 9,
65 FUNC_DVIMODE = 11,
66 FUNC_POWER = 12,
67 FUNC_ENERGY = 13,
68 };
69
70 class Device
71 {
72 public:
73 Device(RealViewCtrl &parent, DeviceFunc func,
74 uint8_t site, uint8_t pos, uint8_t dcc, uint16_t dev)
75 {
76 parent.registerDevice(func, site, pos, dcc, dev, this);
77 }
78
79 virtual ~Device() {}
80
81 virtual uint32_t read() const = 0;
82 virtual void write(uint32_t value) = 0;
83 };
84
53 protected:
54 enum {
55 IdReg = 0x00,
56 SwReg = 0x04,
57 Led = 0x08,
58 Osc0 = 0x0C,
59 Osc1 = 0x10,
60 Osc2 = 0x14,

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91 };
92
93 // system lock value
94 BitUnion32(SysLockReg)
95 Bitfield<15,0> lockVal;
96 Bitfield<16> locked;
97 EndBitUnion(SysLockReg)
98
85 protected:
86 enum {
87 IdReg = 0x00,
88 SwReg = 0x04,
89 Led = 0x08,
90 Osc0 = 0x0C,
91 Osc1 = 0x10,
92 Osc2 = 0x14,

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123 };
124
125 // system lock value
126 BitUnion32(SysLockReg)
127 Bitfield<15,0> lockVal;
128 Bitfield<16> locked;
129 EndBitUnion(SysLockReg)
130
131 BitUnion32(CfgCtrlReg)
132 Bitfield<11, 0> dev;
133 Bitfield<15, 12> pos;
134 Bitfield<17, 16> site;
135 Bitfield<25, 20> func;
136 Bitfield<29, 26> dcc;
137 Bitfield<30> wr;
138 Bitfield<31> start;
139 EndBitUnion(CfgCtrlReg)
140
141 static const uint32_t CFG_CTRL_ADDR_MASK = 0x3fffffffUL;
142
99 SysLockReg sysLock;
100
101 /** This register is used for smp booting.
102 * The primary cpu writes the secondary start address here before
103 * sends it a soft interrupt. The secondary cpu reads this register and if
104 * it's non-zero it jumps to the address
105 */
106 uint32_t flags;

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122 */
123 RealViewCtrl(Params *p);
124
125 /**
126 * Handle a read to the device
127 * @param pkt The memory request.
128 * @param data Where to put the data.
129 */
143 SysLockReg sysLock;
144
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
149 */
150 uint32_t flags;

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166 */
167 RealViewCtrl(Params *p);
168
169 /**
170 * Handle a read to the device
171 * @param pkt The memory request.
172 * @param data Where to put the data.
173 */
130 virtual Tick read(PacketPtr pkt);
174 Tick read(PacketPtr pkt) M5_ATTR_OVERRIDE;
131
132 /**
133 * All writes are simply ignored.
134 * @param pkt The memory request.
135 * @param data the data
136 */
175
176 /**
177 * All writes are simply ignored.
178 * @param pkt The memory request.
179 * @param data the data
180 */
137 virtual Tick write(PacketPtr pkt);
181 Tick write(PacketPtr pkt) M5_ATTR_OVERRIDE;
138
139 void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
140 void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
182
183 void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
184 void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
185
186 public:
187 void registerDevice(DeviceFunc func, uint8_t site, uint8_t pos,
188 uint8_t dcc, uint16_t dev,
189 Device *handler);
190
191 protected:
192 std::map<uint32_t, Device *> devices;
141};
142
193};
194
195/**
196 * This is an implementation of a programmable oscillator on the that
197 * can be configured through the RealView/Versatile Express
198 * configuration interface.
199 *
200 * See ARM DUI 0447J (ARM Motherboard Express uATX -- V2M-P1).
201 */
202class RealViewOsc
203 : public ClockDomain, RealViewCtrl::Device
204{
205 public:
206 RealViewOsc(RealViewOscParams *p);
207 virtual ~RealViewOsc() {};
143
208
209 void startup() M5_ATTR_OVERRIDE;
210
211 void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
212 void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
213
214 public: // RealViewCtrl::Device interface
215 uint32_t read() const M5_ATTR_OVERRIDE;
216 void write(uint32_t freq) M5_ATTR_OVERRIDE;
217
218 protected:
219 void clockPeriod(Tick clock_period);
220};
221
222
144#endif // __DEV_ARM_RV_HH__
223#endif // __DEV_ARM_RV_HH__