Instruction/ maintenance manual of the product CS5535 AMD
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AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide AMD Geode™ GX Processor/ CS5535 Companion De vice GeodeR OM P or ting Guide April 2006 Publicat ion ID: 32430C.
2 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide © 2006 Advanced Micr o Devices, Inc. All rights reser ved. The contents of this docu ment are pr ovided in connection with Adv anced Micro Devices , Inc. (“AMD”) products.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 3 Contents 32430C Contents List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 List of Tables .
4 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Contents 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 5 List of Figures 32430C List of Figures Figure 3-1. GeodeLink™ Architecture To pology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Figure 4-1.
6 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide List of Figures 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 7 List of T ables 32430C List of T ab les Table 4-1. Default Region Configuration Properties Bit Desc riptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Table 4-2.
8 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide List of T ables 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 9 1 Overview 32430C 1.0 Ov er vie w 1.1 Intr oduction This document descr ibes the changes neede d f or GeodeROM and other BIOSs to suppor t th e AMD Geode™ GX proces- sor and the AMD Geode™ CS5535 co mpanion device.
10 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Assumption 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 11 2 Model Specific Registers 32430C 2.0 Model Specific Registers There are two wa ys to read o r write Mode l Specific Registers (MSRs) in a Geode™ GX proces sor system.
12 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Model Specific Registers 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 13 3 GeodeLink™ Architecture 32430C 3.0 GeodeLink™ Architecture GeodeLink™ architecture connects the inter nal mo dules of th e AMD Geode™ GX processo r using the data channels pro- vided by GeodeLink Interf ace Units (GLI Us).
14 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide GeodeLink™ Architecture 32430C 3.1 GeodeLink™ MSR Addressing The GX processor’ s MSRs are addressed from th e source module to the por t of the target module. The topology of the GX processor must be understood to derive the address.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 15 4 Initialization 32430C 4.0 Initialization 4.1 Processor Initialization The AMD Geode™ GX processor contains many of the components n ormally found in system suppor t chi psets.
16 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Initialization 32430C 4.1.2 Cal culating Pro cessor Speed Entr y Conditions: Stack and No-Stack v ersions required. 8254 timer availab le (por t 61). Procedure: • Utilize the Real Time Stamp Counter (R TSC).
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 17 Initialization 32430C 4.1.3.1 Size Memor y Entr y Conditions: 4 GB descriptor in FS Core register.
18 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Initialization 32430C 4.1.5.1 GLIU Descripto rs Initial ization Register: P2D_BM, P2D_BMO , P2D_R, P2D_RO , P2D_SC (G LIU0.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 19 Initialization 32430C Registers: CR0 RCONF MSRs: CPU Core MSR Address 00001808h-00001817h Instru ction Memor y Configuratio.
20 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Initialization 32430C 4.2 AMD Geode™ CS5535 Compan ion Device Initialization The Geode™ CS5535 is a complete compani on de vice to the GX processor .
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 21 Initialization 32430C 4.2.4.1 IRQ Mapper The XPIC has sev eral incoming sources. They are IRQ, LPC , Y , and Z sources. The Y sources include software , USB, R T C alarm, audi o , power management, NAND Flash, SMB , KEL, and UAR Ts.
22 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Initialization 32430C 4.2.4.6 A CPI 4.2.4.7 P ower Management Logic 4.2.4.8 Flash Interface 4.2.4.9 Other Legacy DD Initializatio n Location: 9C00h or other nor mal ACPI location.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 23 Initialization 32430C 4.2.4.10 DD I/O Locations 4.2.5 A T A-5 / Hard Drive Initialization Hard drive initialization is handled by a system ROM that is loaded by GeodeROM.
24 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Initialization 32430C 4.2.8 GeodeLink™ Contr ol Processor Initializatio n The Geode CS5535 GL CP contains the diagnostic bus, the JT AG interf ace clock, south bridge control, and power manage- ment.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 25 Initialization 32430C 4.5 Miscellaneous Initializations In addition to the previous processor initializations, the graphics card(s) m ust also be initialized. 4.5.1 Initialize Graphics Subsystem There are two different modes: CR T and TFT .
26 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Initialization 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 27 5 Implementation 32430C 5.0 Implementation 5.1 Implementation The follo wing is a collection of imp lementation details to consid er in the GeodeROM implementation phase. 5.1.
28 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Implementation 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 29 6 Setup Options 32430C 6.0 Setup Options Initial configuration is set in the configur ator at build time. Based on those settings, there are some setup options at r untim e that are platform specific.
30 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide 32430C.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 31 7 Memory Map 32430C 7.0 Memor y Map Figures 7-1, 7-2, and 7 -3 show the system memory . Figure 7-1 is the GLIU Descriptor Map, Figure 7-2 shows the Core Cache descriptors, and Figure 7-3 on page 32 shows the Core cache region configurations.
32 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Memory Map 32430C Figure 7-3. CPU Core Cache Region Configurations ROM PCI Memor y Mapped PCI PCI Memor y Mapped VSA PCI M.
AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 33 Memory Map 32430C Figure 7-4. GeodeR OM Flow - GX Process or/CS5535 Devi ce Reset ROM Fe tc h CPU ID Correct? F ailed to Bo.
34 AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P or ting Guide Memory Map 32430C Figure 7-4 "Geo deROM Flo w - GX Proc essor/CS5535 De vice" (Contin ued) Finish Post Setup Sta.
A AMD Geode™ GX Processor/CS5535 Companion Device GeodeROM P orting Guide 35 Appendix A: Suppor t Document ation 32430C Appendix A Suppor t Documentation A.1 Document Revision History This section repor ts the revision/creation process of the por ting guide.
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If you have not bought AMD CS5535 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data AMD CS5535 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, AMD CS5535 you will learn all the available features of the product, as well as information on its operation. The information that you get AMD CS5535 will certainly help you make a decision on the purchase.
If you already are a holder of AMD CS5535, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime AMD CS5535.
However, one of the most important roles played by the user manual is to help in solving problems with AMD CS5535. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device AMD CS5535 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
