MTK学习文档\官方文档MTK6225\System_and_Debug\System_Configuration\System_Configuration_V1.14

MediaTekSystemConfigurationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemDocumentNumber:Preliminary(Released)InformationRevision:1.14ReleaseDate:Jul.17,2006SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemLegalDisclaimerBYOPENINGORUSINGTHISFILE,BUYERHEREBYUNEQUIVOCALLYACKNOWLEDGESANDAGREESTHATTHESOFTWARE/FIRMWAREANDITSDOCUMENTATIONS(“MEDIATEKSOFTWARE”)RECEIVEDFROMMEDIATEKAND/ORITSREPRESENTATIVESAREPROVIDEDTOBUYERONAN“AS-IS”BASISONLY.MEDIATEKEXPRESSLYDISCLAIMSANYANDALLWARRANTIES,EXPRESSORIMPLIED,INCLUDINGBUTNOTLIMITEDTOTHEIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEORNONINFRINGEMENT.NEITHERDOESMEDIATEKPROVIDEANYWARRANTYWHATSOEVERWITHRESPECTTOTHESOFTWAREOFANYTHIRDPARTYWHICHMAYBEUSEDBY,INCORPORATEDIN,ORSUPPLIEDWITHTHEMEDIATEKSOFTWARE,ANDBUYERAGREESTOLOOKONLYTOSUCHTHIRDPARTYFORANYWARRANTYCLAIMRELATINGTHERETO.MEDIATEKSHALLALSONOTBERESPONSIBLEFORANYMEDIATEKSOFTWARERELEASESMADETOBUYER’SSPECIFICATIONORTOCONFORMTOAPARTICULARSTANDARDOROPENFORUM.BUYER'SSOLEANDEXCLUSIVEREMEDYANDMEDIATEK'SENTIREANDCUMULATIVELIABILITYWITHRESPECTTOTHEMEDIATEKSOFTWARERELEASEDHEREUNDERWILLBE,ATMEDIATEK'SOPTION,TOREVISEORREPLACETHEMEDIATEKSOFTWAREATISSUE,ORREFUNDANYSOFTWARELICENSEFEESORSERVICECHARGEPAIDBYBUYERTOMEDIATEKFORSUCHMEDIATEKSOFTWAREATISSUE.THETRANSACTIONCONTEMPLATEDHEREUNDERSHALLBECONSTRUEDINACCORDANCEWITHTHELAWSOFTHESTATEOFCALIFORNIA,USA,EXCLUDINGITSCONFLICTOFLAWSPRINCIPLES.MediaTekConfidentialRevision1.14–July17,2006Page:2of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemRevisionHistoryRevisionDateAuthorComments0.1007/06/2004ShalynChuaInitialrelease.0.2007/26/2004ShalynChuaAddingMCPtype,ST:M74DW6500DandM74DW66500B.0.3008/02/2004ShalynChuaReviewbyCKLee.0.4008/26/2004ShalynChua1.FromW04.36,EMIcustomizationismovedtocustom\system\boardversion\custom_emi.c2.CreatecustomizationmenuofEMIgeneralsetting.0.5009/06/2004KarenHsuAddfilesystemconfigurationfromW04.370.6009/30/2004KarenHsuFromW04.381.Addcompileoption,APP_MEM_SUPPORT,conditionforcheckdrivefeatureinfilesystem2.Addcompileoption,TST_SUPPORTandnon-production,conditionfortracefeatureinfilesystem0.7010/18/2004ShalynChuaGivingthesuggestedEMIsetting.10/25/2004KarenHsuFromW04.43,Quotamanagementwillbeputintotherelease0.8012/28/2004ShalynChua1.ChangingtheEMIsuggestedvalue,2.Modifyscatterfileofmulti-bin.3.Modifyconfigurationofsystemmemorysize.0.9004/21/2005CCHwangAddSection1.3.3:ConfigurationofSystemTasks’StackSizeandExternalQueueSize.1.0010/27/05ShalynChua1.AddingthedescriptionofEMIsettingfor05C.2.AddingitemsforMT6226andMT6227.1.1011/1/2005ShalynChuaMoredescriptiononBoot-upflow.1.1112/06/2005ShalynChua1.AddingdescriptionforMT6205Bdrivingstrength.2.AddingExample3fordemonstratingINTEL28F160C3EMIsetting.3.Addingstatement*PREFETCH_CON=EMI_CACHE_PREFETCHtoExample2.1.1203/31/2006ShalynChua1.AddingSection1.2.1.2.c,describingEMIAuto-generationsinceW062005C.2.AddingSection1.4.2,scatterfilere-organization.3.ModifyTable10:ScatterFileofMulti-Bin.1.1305/30/2006ShalynChua1.Re-organizelayoutofeachsection.2.CreateSection1.4.31.1407/17/2006ShalynChua1.Createflowchart,MAUIBoot-UpFlow(NAND-FlashBooting,NFB)2.AddnoteatSection1.4.3.MediaTekConfidentialRevision1.14–July17,2006Page:3of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemTableofContentsLegalDisclaimer...........................................................................................................................................................2RevisionHistory...........................................................................................................................................................3TableofContents.........................................................................................................................................................41MCUSub-SystemInitialization..........................................................................................................................51.1Introduction.....................................................................................................................................................51.2MCUBoot-UpFlow.........................................................................................................................................51.2.1MCURelatedSettings..............................................................................................................................81.2.1.1MCUClock............................................................................................................................................81.2.1.2ExternalMemoryInterface(EMI)..........................................................................................................81.2.1.2.aEMICustomizationForSoftwarePackageBefore05B...................................................................81.2.1.2.bEMICustomizationForSoftwarePackage05Band05CBeforeW0620......................................121.2.1.2.cEMICustomizationForSoftwarePackage05CW0620andLater................................................171.3OperatingSystemBoot-UpFlow..................................................................................................................221.3.1ConfigurationofSystemMemoryandDebugMemory...........................................................................231.3.2ConfigurationofControlBuffer...............................................................................................................241.3.3ConfigurationofSystemTasks’StackSizeandExternalQueueSize...................................................251.3.4ConfigurationandCreationofCustomerTasks......................................................................................261.4ScatterLoadingFile(ScatterFile)................................................................................................................291.4.1SingleBinary(Single-Bin)vs.MultipleBinary(Multi-Bin)Files...............................................................291.4.1.1Single-Binvs.Multi-BinModificationProcedure..................................................................................311.4.2Scatterfilere-organizesinceW061605C..............................................................................................321.4.3ScatterfileforNFB(NAND-FlashBooting)system................................................................................332FileSystemConfiguration................................................................................................................................352.1Introduction...................................................................................................................................................352.2ResourceConfiguration................................................................................................................................352.2.1NumberofDrives...................................................................................................................................352.2.2NumberofBuffer....................................................................................................................................352.2.3NumberofFileHandle...........................................................................................................................352.2.4NumberofThread..................................................................................................................................362.2.5DeviceList..............................................................................................................................................362.3FeatureConfiguration...................................................................................................................................362.3.1SupportSortFeature..............................................................................................................................362.3.2SupportMove/CopyFeature..................................................................................................................362.3.3SupportCheckDriveFeature.................................................................................................................362.3.4SupportTraceFeature...........................................................................................................................372.3.5SupportQuotaManagementFeature.....................................................................................................37MediaTekConfidentialRevision1.14–July17,2006Page:4of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystem1MCUSub-SystemInitialization1.1IntroductionThreemajortopicsarecoveredinthissection.Firstly,MCUboot-upsequence,includingthesettingofexternalmemorydevice.Theconfigurationofgeneratingsingleormultiplebinaryfilesservesassecondtopic.Atlast,operatingsystemrelatedcustomization,includingconfigurationofsystemmemorysize,taskandmodulecreationetc.1.2MCUBoot-UpFlowRESETBootfromReceivingstart-upYESBOOTROMloop,BOOTROMpatternviaUART1within150ms?Metamodeinitiated?YESNOBranchNOcommand?YESSwitchPCtoExternalDeviceBank#0AssignSupervisorModeSPNOCopyexceptionRemapping?handler.YESYESIfabnormalresetResponseExceptionhandlertheRemappingIsdetected?NOConfigureEMIDatacopyfromflashtoSRAMAssignSPtovariousoperationmodesdefinedbyARMCPU.ApplicationinitializationApplicationinitializationWhilecreatingNONOtasksMETAmodeUSBbootinitiated?mode?YESYESUSBmassMETAmodeNormalmodestoragemodeFigure1:MAUIBoot-UpFlow(NOR-FlashBooting)MediaTekConfidentialRevision1.14–July17,2006Page:5of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemRESETBootfromReceivingstart-upYESBOOTROMReceiveloop,BOOTROMpatternviaUART1BOOTROMwithin150ms?Metacommand?modeinitiated?YESNOBranchNOcommand?YESTrytogetBoot-loaderheaderviaNFI(NANDInterface)YESYESLoadtheBoot-LoadtheprimaryHeaderfound?loaderimageandMAUIandexecute.execute.NOSwitchPCtoExternalDeviceBank#0AssignSupervisorModeSPNOCopyexceptionRemapping?handler.YESYESIfabnormalresetExceptionResponsehandlertheRemappingIsdetected?NOConfigureConfigureEMIEMI(bypassforNFB)DataDatacopy/CodefromcopyflashandtoSRAMzeroinitialization.AssignSPtovariousoperationmodesdefinedbyARMCPU.ApplicationinitializationApplicationinitializationNFB?LoadsecondaryMAUIanddisplayprogressbar.WhilecreatingNONOMETAcreatingtasksMETAmodeUSBboottasksinitiated?Mode?mode?YESYESMETAmodeUSBmodeNormalmodeFigure2:MAUIBoot-UpFlow(NAND-FlashBooting,NFB)MediaTekConfidentialRevision1.14–July17,2006Page:6of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemUponreset,MCUfetchescodefromBOOTROMifIBOOT(MT6218B,MT6217,MT6219andalter)orGPIO0(MT6205B)istiedtoground;ifnostartcommand(0xA0,0x0A,0x50,and0x05)isreadfromUART1within150ms,BOOTROMtrapsProgramCounter(PC)toexternaldevice0(\CS0)throughremappingonBOOTROMand\CS0.Normally,deviceat\CS0isflash.Ontheotherhand,ifstartcommandisreceived,BOOTROMgetsreadytoreceiveanycommandsfromPCsite.IncaseofMETAmodetriggercommandfollowedwithabranchcommandisreceived,BOOTROMterminatesthewaitingloopandtransfertheexecutionrighttoexternalflash.METAmodetriggercommandissimplyaregisterwritetodedicateregister.DestinationRegisterMT6205BMT6218/MT6217/MT6219/MT6226/MT62270x80120004=0x010x80120000=0x01Table1:RegisterSettingsforTriggeringMETAModeWhileleavingBOOTROM,theveryfirstactiontakenatflashistoturnoffIRQandFIQ,besides,ensuresystemrunningatsupervisormode.ExceptMT6205B,MT6218,MT6217andMT6219applyremappingmechanismonchipselect0and1(\CS0and\CS1),inotherwords,address0x00willbeswitchedtoSRAMafterremapping.Detectionofabnormalreset,copyread/writedatafromflash,stackpointer(SP)initializationwouldbedonesubsequently.Finally,MCUboot-upsequenceendsattheentryofapplicationinitialization.Availablereadytasksarecloselydependentonsystemboot-upmode,forinstance,L1taskwouldbephasedoutinbothUSBmassstoragemodeandMETAmode.Toachieveremapping,somemodificationsarenecessary,1.Theleading320BytesofSRAMarereservedfortheexceptionhandlers,whichareduplicatedfromflashafterreset.2.EMIreadlatencyis7bydefault,onremapping;itissetto2forboth\CS0and\CS1.3.Startaddressofcodebecomes0x08000000insteadof0x00.Note,items1and2aredoneat\mcu\init\src\bootarm.s,andprotectedwithglobalcompileroption,REMAPPING.Presently,itisassociatedwithbase-bandchipsMT6218B,MT6217andMT6219.MediaTekConfidentialRevision1.14–July17,2006Page:7of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystem1.2.1MCURelatedSettingsMCUclockandExternalMemoryInterface(EMI)aretwomajorsettingtobecompletedinthisstage.1.2.1.1MCUClockUsersareresponsibletodefineexternalPLLandexpectedMCUclockat.bldfile,whichlocatesat\mcu\make.Tablebelowisthelistingofallpossiblechoicesfordifferentbase-bandchips.NotationDescriptionSelectionItemsMT6205BMT6218B,MT6217,MT6219,MT6226,MT6227EXT_CLOCKExternalPLLEXT_13M,EXT_26MEXT_13M,EXT_26MMCU_CLOCKMCUClockMCU_13M,MCU_26MMCU_26M,MCU_52MTable2:SupportableMCUPLLonDifferentBasebandChips1.2.1.2ExternalMemoryInterface(EMI)Base-bandchipprovidedbyMediaTekInc.uses7waitstatestoaccessexternaldevicebydefault;valuetobere-assignediscloselydependentondeviceadopted.Customers,whohavesoftwaredeliverpackagebefore05B,pleaserefertosection1.2.2.2a,otherwise,pleaserefertosection1.2.2.2.b.1.2.1.2.aEMICustomizationForSoftwarePackageBefore05BForeasycustomization,aread-onlyglobalvariableEMI_Nodeisprovidedforplatformdependentconfiguration.ItisanarrayoftypeEMI_NODE_TYPE,numberofentriesisdeterminedbytotalnumberofexternalmemorydevicesappliedontarget.Usersoughttofillthemwithappropriatevalue,orsystemmayfailtoboot-upduetoEMIfailure.EMI_Nodeisdefinedat\mcu\custom\system\boardversion\custom_emi.c,meaningofeachmenuentryandpossiblevaluesofeachentryareillustratedinbelowtwoTables.DataStructureDataTypeFieldDescriptionkal_uint16chip_selectDefinebanknumberofexternaldevice.EMI_MODE_TYPEmodeAccessmode.EMI_WAIT_STATERLTReadlatencytime.EMI_WAIT_STATEWSTWritewaitstate.EMI_PAGE_SIZEpage_sizePagesizeforpage/burstmodeoperation.EMI_WAIT_STATEPRLTReadlatencywithinthesamepageorinburstEMI_NODE_TYPEmodeoperation.EMI_DATA_WIDTHdata_width8bitsor16bitsdevice.EMI_RBLNRBLNReadbytelaneenable.MediaTekConfidentialRevision1.14–July17,2006Page:8of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemEMI_SETUP_TIMEC2WSSetuptimeforwritecycle.EMI_SETUP_TIMEC2RSSetuptimeforreadcycle.EMI_HOLD_TIMEC2WHHoldtimeforwritecycle.EMI_CSECSEChipselecttocommanddelay.Note:(1)RowwithyellowcolorisMT6205Bspecific.(2)MeaningofRLT,PRLT,C2RSaredepictedinFigure2,Readsequence.(3)MeaningofWST,C2WSandC2WHaredepictedinFigure3,Writesequence.Table3:ContentofEMIConfigurationMenuDatatypeDefinitionDescriptionEMI_CS0Definethefirstexternaldeviceinterface.EMI_CS1Definethesecondexternaldeviceinterface.ChipSelectEMI_CS2Definethethirdexternaldeviceinterface.EMI_CS3Definethefourthexternaldeviceinterface.EMI_CS4Definethefifthexternaldeviceinterface.EMI_CS5Definethesixthexternaldeviceinterface.EMI_NORMAL_MODEAsynchronousmodeaccess.EMI_MODE_TYPEEMI_PAGE_MODEAsynchronousmodeaccessinpage.EMI_BURST_MODESynchronousmodeaccessEMI_16BIT_DEVICEDefinethe16bitsdevice,datalineD15-D0areavailable.EMI_DATA_WIDTHEMI_8BIT_DEVICEDefinethe8bitsdevice,datalineD7-D0areavailable.EMI_0_WAIT_STATEZerowaitstate,accessdonein1clockcycle.EMI_1_WAIT_STATEOnewaitstate,accessdonein2clockcycle.EMI_2_WAIT_STATETwowaitstate,accessdonein3clockcycle.EMI_3_WAIT_STATEThreewaitstate,accessdonein4clockcycle.EMI_WAIT_STATEEMI_4_WAIT_STATEFourwaitstate,accessdonein5clockcycle.EMI_5_WAIT_STATEFivewaitstate,accessdonein6clockcycle.EMI_6_WAIT_STATESixwaitstate,accessdonein7clockcycle.EMI_7_WAIT_STATESevenwaitstate,accessdonein8clockcycle.EMI_NO_PAGEAssociatewithnormalmodeaccess.EMI_8B_PER_PAGE8Bytesperpageforpage/burstmodeoperation.EMI_16B_PER_PAGE16Bytesperpageforpage/burstmodeoperation.EMI_PAGE_SIZEEMI_32B_PER_PAGE32Bytesperpageforpage/burstmodeoperation.EMI_64B_PER_PAGE64Bytesperpageforpage/burstmodeoperation.EMI_CONTINUOS_BURSTContinuoussequentialburst.EMI_RBLN_DISABLEAllbytelanesheldhighduringsystemreads.EMI_RBLNEMI_RBLN_ENABLEAllbytelanesheldlowduringsystemreads.EMI_SETUP_TIME_0Withoutset-uptime.EMI_SETUP_TIME_11cycleset-uptime.EMI_SETUP_TIMEEMI_SETUP_TIME_22cyclesset-uptime.EMI_SETUP_TIME_33cyclesset-uptime.EMI_HOLD_TIME_0Withoutholdtime.EMI_HOLD_TIME_11cycleholdtime.EMI_HOLD_TIMEEMI_HOLD_TIME_22cyclesholdtime.MediaTekConfidentialRevision1.14–July17,2006Page:9of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemEMI_HOLD_TIME_33cyclesholdtime.EMI_CSE_NOWithoutchipselecttocommanddelay.EMI_CSEEMI_CSE_1TChipselecttocommand1Tdelay.Note:DefinitionswithgraycolorbackgroundareexcludedinMT6205B;whileyellowcolorisMT6205Bspecific.Table4:SelectionItemsforEachEMIMenuEntryReadCycle:Figure2:ReadSequenceECLKRLT+1EAECSn#C2RSERD#EDEADVRLT=4,C2RS=2WriteCycle:Figure3:WriteSequenceECLKWST+C2WH+2EAECSn#C2WSC2WH+1EWR#EDEADVWST=3,C2WS=2,C2WH=1Definitionsofdatatypeanddatastructurecouldbefoundat\mcu\int\include\init.h.Forexample,wehavetwoexternalmemorydevices,flashatchipselect0(/CS0)andSRAMat/CS1,theyareboth16bitsdevicesandoperateatnormalmode;neitherpagenorburstissupported.Accesslatencyis70nsforbothreadMediaTekConfidentialRevision1.14–July17,2006Page:10of37©2004-2006MediaTekInc.Theinformationcontainedinthisdocumentcanbemodifiedwithoutnotice.SystemConfigurationPreliminaryInformationSystemBoot-up,KernelCustomization,Single-binvs.Multi-binandFileSystemandwrite.Incaseof52MHzMCUclock,accesslatencyshouldbe5cycles(5x19.2=96ns>70ns),therefore,readwaitstate(RLT)shouldbe(5-1)=4cycles.Forsafety,wewouldliketohavebothC2RSandC2WSsetto1T.Incasethatwritepulselength(tWP)is50ns,thewritewaitstateshouldbesetto(5-2)=3cycles(3x19.2=57.6ns>50ns).constEMI_NODE_TYPEEMI_Node[2]{/*Flash*/{EMI_CS0,EMI_NORMAL_MODE,EMI_4_WAIT_STATE,EMI_3_WAIT_STATE,EMI_NO_PAGE,EMI_0_WAIT_STATE,EMI_16BIT_DEVICE,EMI_RBLN_ENABLE,EMI_SETUP_TIME_1,EMI_SETUP_TIME_1,EMI_HOLD_TIME_0},/*SRAM*/{EMI_CS1,EMI_BURST_MODE,EMI_4_WAIT_STATE,EMI_3_WAIT_STATE,EMI_NO_PAGE,EMI_0_WAIT_STATE,EMI_16BIT_DEVICE,EMI_RBLN_ENABLE,EMI_SETUP_TIME_1,EMI_SETUP_TIME_1,EMI_HOLD_TIME_0}};TablebelowisthesuggestedEMIsettingfor70nsaccesstimeMCPappliedonMT6218B/MT6219/MT6217/MT6227/MT6226.PagemodeModeRLT(T)WST(T)PagePRLT(T)DataRBLNC2WSC2RS(T)C2WHsupportedsizewidth(Y/N)(T)(T)YESBURST4316*2*16bitsY110NOBURST4316*416bitsY110Note*:Dependonthespecificationrequirement.Table5:EMISettingfor70nsPSRAMPagemodeModeRLT(T)WST(T)PagePRLT(T)DataRBLNC2WSC2RS(T)C2WHsupportedsizewidth(Y/N)(T)(T)YESPAGE4316*2*16bitsY110NONormal4316*316bitsY110Note*:Dependonthespecificationrequirement.Table6:EMISettingfor70nsFlashInadditiontoEMImenu,anothernecessarycustomizationitemin\mcu\custom\dsystem\boardversion\custom_emi.cisRAMsize.ItisveryimportantsinceCatcherreliesonthevalueformemorydump.ForMT6218B,MT6217andMT6219EMIfine-tuning,additionalEMImenuiscreated,namelyEMI_general_setting.DataStructureDataTypeFieldDescriptionEMI_DRIVINGdriving_CKEECLKdrivingstrength(burstmodeonly)EMI_DRIVINGdriving_CSEChipselectdrivingstrengthEMI_DR