AMD CS5535 manual Contents

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32430C	Contents

4	AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM Porting Guide

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Contents April Publication ID 32430CAdvanced Micro Devices, Inc. All rights reserved TrademarksContents Contents List of Figures GeodeLink Architecture TopologyList of Figures List of Tables List of Tables Overview1 IntroductionAssumption Model Specific Registers2 Example MSR TransactionLoad MSR specified by ECX into Edxeax Write the value in Edxeax to MSR specified by ECXModel Specific Registers GeodeLink Architecture3 AMD GeodeGX Processor CS5535 Companion DeviceGeodeLink MSR Addressing DescriptorsAddressing Example Memory Descriptor TypesSet Clocks and Reset Processor InitializationSysref Mdiv VdivMemory Controller Initialization Calculating Processor SpeedCPU Identification GeodeLink Modules Initialization Test Extended DramSize Memory Default Region Configuration Properties Bit Descriptions Descriptor Allocation Glpci RegionsDescriptor MSR Address AMD Geode CS5535 Companion Device Initialization Chipset IDSet ID Select Idsel Gliu InitializationMulti Function General Purpose Timers MFGPTs IRQ MapperKeyboard Emulation Logic KEL 1+ System Management Bus SMBusPower Management Logic AcpiFlash Interface Other Legacy DD InitializationDiverse Device I/O Locations ATA-5 / Hard Drive InitializationUniversal Serial Bus USB 7 AC97 Audio Controller InitializationVirtual System Architecture Initialization PCI Bus InitializationGeodeLink Control Processor Initialization Allocate Processor Frame Buffer and VSA2 MemoryMiscellaneous Initializations Initialize Graphics SubsystemMonochrome Support Dual Monitor Support32430C Implementation5 ClockingScratchpad Initialization Post CodesImplementation Setup Options6 32430C ROM Memory7MapVSA Frame Buffer Memory MappedVSA PCI GeodeROM Flow GX Processor/CS5535 Device VSA Document Revision History Table A-1. Revision HistoryRevision # Revisions / Comments Initial release