1 // 2 // Copyright (c) 2010-2022 Antmicro 3 // Copyright (c) 2022 ION Mobility 4 // 5 // This file is licensed under the MIT License. 6 // Full license text is available in 'licenses/MIT.txt'. 7 // 8 using System; 9 using Antmicro.Renode.Core; 10 using Antmicro.Renode.Core.Structure.Registers; 11 using Antmicro.Renode.Peripherals.Bus; 12 13 namespace Antmicro.Renode.Peripherals.Miscellaneous 14 { 15 // SCG - System Clock Generator 16 // This is a stub providing a bare minimum of configuration options along with some reasonable default values. 17 // It's not supposed to be understood as a fully-fledged Renode model. 18 // Note: the documentation explicitly disallows 8- and 16-bit transfers 19 public class S32K_SCG : BasicDoubleWordPeripheral, IKnownSize 20 { S32K_SCG(IMachine machine)21 public S32K_SCG(IMachine machine) : base(machine) 22 { 23 Registers.ClockStatus.Define(this) 24 .WithValueField(0, 4, FieldMode.Read, valueProviderCallback: _ => slowClockRatio.Value, name: "DIVSLOW") 25 .WithValueField(4, 4, FieldMode.Read, valueProviderCallback: _ => busClockRatio.Value, name: "DIVBUS") 26 .WithReservedBits(8, 8) 27 .WithValueField(16, 4, FieldMode.Read, valueProviderCallback: _ => coreClockRatio.Value, name: "DIVCORE") 28 .WithReservedBits(20, 4) 29 .WithValueField(24, 4, FieldMode.Read, valueProviderCallback: _ => systemClockSource.Value, name: "SCS") 30 .WithReservedBits(28, 4) 31 ; 32 33 Registers.RunClockControl.Define(this, 0x3000001) 34 .WithValueField(0, 4, out slowClockRatio, name: "DIVSLOW") 35 .WithValueField(4, 4, out busClockRatio, name: "DIVBUS") 36 .WithReservedBits(8, 8) 37 .WithValueField(16, 4, out coreClockRatio, name: "DIVCORE") 38 .WithReservedBits(20, 4) 39 .WithValueField(24, 4, out systemClockSource, name: "SCS") 40 .WithReservedBits(28, 4) 41 ; 42 43 Registers.VLPRClockControl.Define(this) 44 .WithValueField(0, 4, valueProviderCallback: _ => 3, name: "DIVSLOW") 45 .WithValueField(4, 4, valueProviderCallback: _ => 1, name: "DIVBUS") 46 .WithReservedBits(8, 8) 47 .WithValueField(16, 4, valueProviderCallback: _ => 0, name: "DIVCORE") 48 .WithReservedBits(20, 4) 49 .WithValueField(24, 4, valueProviderCallback: _ => 3, name: "SCS") 50 .WithReservedBits(28, 4) 51 ; 52 53 Registers.HSRUNClockControl.Define(this) 54 .WithValueField(0, 4, valueProviderCallback: _ => 3, name: "DIVSLOW") 55 .WithValueField(4, 4, valueProviderCallback: _ => 1, name: "DIVBUS") 56 .WithReservedBits(8, 8) 57 .WithValueField(16, 4, valueProviderCallback: _ => 0, name: "DIVCORE") 58 .WithReservedBits(20, 4) 59 .WithValueField(24, 4, valueProviderCallback: _ => 3, name: "SCS") 60 .WithReservedBits(28, 4) 61 ; 62 63 Registers.CLKOUTConfiguration.Define(this) 64 .WithReservedBits(0, 24) 65 .WithValueField(24, 4, valueProviderCallback: _ => 1, name: "CLKOUTSEL") 66 .WithReservedBits(28, 4) 67 ; 68 69 Registers.OscillatorControlStatus.Define(this) 70 .WithFlag(0, valueProviderCallback: _ => true, name: "SOSCEN") 71 .WithReservedBits(1, 15) 72 .WithFlag(16, valueProviderCallback: _ => false, name: "SOSCCM") 73 .WithFlag(17, valueProviderCallback: _ => false, name: "SOSCCMRE") 74 .WithReservedBits(18, 5) 75 .WithFlag(23, valueProviderCallback: _ => false, name: "LK") 76 .WithFlag(24, FieldMode.Read, valueProviderCallback: _ => true, name: "SOSCVLD") 77 .WithFlag(25, FieldMode.Read, valueProviderCallback: _ => false, name: "SOSCSEL") 78 .WithFlag(26, FieldMode.WriteOneToClear, name: "SOSCERR") 79 .WithReservedBits(27, 5) 80 ; 81 82 Registers.OscillatorDivide.Define(this) 83 .WithValueField(0, 3, valueProviderCallback: _ => 1, name: "SOSCDIV1") 84 .WithReservedBits(3, 5) 85 .WithValueField(8, 3, valueProviderCallback: _ => 1, name: "SOSCDIV2") 86 .WithReservedBits(11, 21) 87 ; 88 89 Registers.SlowIRCControlStatus.Define(this, 0x3) 90 .WithFlag(0, out slowIRCEnable, name: "SIRCEN") 91 .WithFlag(1, name: "SIRCSTEN") 92 .WithFlag(2, name: "SIRCLPEN") 93 .WithReservedBits(3, 20) 94 .WithFlag(23, name: "LK") 95 .WithFlag(24, FieldMode.Read, valueProviderCallback: _ => slowIRCEnable.Value, name: "SIRCVLD") 96 .WithFlag(25, FieldMode.Read, valueProviderCallback: _ => false, name: "SIRCSEL") 97 .WithReservedBits(26, 6) 98 ; 99 100 Registers.SlowIRCDivide.Define(this, 0x101) 101 .WithValueField(0, 3, name: "SIRCDIV1") 102 .WithReservedBits(3, 5) 103 .WithValueField(8, 3, name: "SIRCDIV2") 104 .WithReservedBits(11, 21) 105 ; 106 107 Registers.SlowIRCConfiguration.Define(this) 108 .WithFlag(0, name: "RANGE") 109 .WithReservedBits(1, 30) 110 ; 111 112 Registers.FastIRCControlStatus.Define(this) 113 .WithFlag(0, valueProviderCallback: _ => true, name: "FIRCEN") 114 .WithReservedBits(1, 2) 115 .WithFlag(3, valueProviderCallback: _ => false, name: "FIRCREGOFF") 116 .WithReservedBits(4, 19) 117 .WithFlag(23, valueProviderCallback: _ => false, name: "LK") 118 .WithFlag(24, FieldMode.Read, valueProviderCallback: _ => true, name: "FIRCVLD") 119 .WithFlag(25, FieldMode.Read, valueProviderCallback: _ => true, name: "FIRCSEL") 120 .WithFlag(26, valueProviderCallback: _ => false, name: "FIRCERR") 121 .WithReservedBits(27, 5) 122 ; 123 } 124 125 public long Size => 0x1000; 126 127 private readonly IValueRegisterField systemClockSource; 128 private readonly IValueRegisterField coreClockRatio; 129 private readonly IValueRegisterField busClockRatio; 130 private readonly IValueRegisterField slowClockRatio; 131 private readonly IFlagRegisterField slowIRCEnable; 132 133 private enum Registers 134 { 135 VersionId = 0x0, 136 Parameter = 0x4, 137 ClockStatus = 0x10, 138 RunClockControl = 0x14, 139 VLPRClockControl = 0x18, 140 HSRUNClockControl = 0x1C, 141 CLKOUTConfiguration = 0x20, 142 OscillatorControlStatus = 0x100, 143 OscillatorDivide = 0x104, 144 OscillatorConfiguration = 0x108, 145 146 SlowIRCControlStatus = 0x200, 147 SlowIRCDivide = 0x204, 148 SlowIRCConfiguration = 0x208, 149 150 FastIRCControlStatus = 0x300, 151 FastIRCDivide = 0x304, 152 FastIRCConfiguration = 0x308, 153 SystemPLLControlStatus = 0x600, 154 SystemPLLDivide = 0x604, 155 SystemPLLConfiguration = 0x608 156 } 157 } 158 } 159
