u boot下自動(dòng)升級(jí)功能設(shè)計(jì)說明

客戶服務(wù)電話 客戶服務(wù)傳真 客戶服務(wù)郵箱 U-bootSD卡U盤自動(dòng)升級(jí)功能的需求、應(yīng)用場(chǎng)景分析及其升級(jí)原理U-bootSD卡U盤升級(jí)功能的設(shè)計(jì)思路和實(shí)現(xiàn)細(xì)節(jié)，為后續(xù)工作------目 FAT文件系統(tǒng)支 MMC驅(qū)動(dòng)移 使能USB 手動(dòng)升級(jí)驗(yàn)證移植的USBOHCI驅(qū) AutoUpdate詳細(xì)設(shè) 圖1-1U-boot下SD卡/U盤升級(jí)簡(jiǎn)要流程 圖3-1函數(shù)運(yùn)行過程

12.SDU3.4.1-1當(dāng)同時(shí)插入SD卡和U盤時(shí)，若SD卡中沒有有效升級(jí)包，則系統(tǒng)自動(dòng)轉(zhuǎn)入U(xiǎn)盤升級(jí)，若SD卡中含有有效升級(jí)包直接使用SD卡中的升級(jí)包升級(jí)系統(tǒng)，不再掃描U盤中的內(nèi)容。具體實(shí)現(xiàn)見內(nèi)部函數(shù)實(shí)現(xiàn)”Hi3520D/Hi3515A/Hi3535/Hi3536U盤升級(jí)，不支持SD????include/configs/?include/configs/?include/configs/?include/configs/?include/configs/?include/configs/hi3516a.h和 ?include/configs/hi3536.h和include/configs/hi3536_spinand.h 下面以Hi3516A代碼為例，說明各部分的相關(guān)作用*sdcard/usbstoragesystem #define1#ifdef#define1#define // #define1#define1**#ifdefCONFIG_AUTO_SD_UPDATE //SD卡驅(qū)動(dòng)編譯開關(guān)，受總開關(guān)#define#defineREG_BASE_MCI #defineCONFIG_HIMCI_V100#define#define #define**11112SDUSBOHCI支持SD卡升級(jí)或者U盤升級(jí)#define #define Hi3536代碼為例，SDHi3516A代碼為例，說明升級(jí)模塊中各個(gè)子模Hi3536或Hi3516A的相關(guān)代碼改為相應(yīng)平臺(tái)的代 【編譯開關(guān) FAT*sdcard/usbstoragesystem*#define #ifdef#define #define #define #define MMC* #ifdef#define#defineREG_BASE_MCI #defineCONFIG_HIMCI_V100#define#define #define

MMCCONFIG_AUTO_SD_UPDATE Hi3520D、Hi3515A、Hi3535、Hi3536SD卡，故不支持從SD**#define1#define1#define1#define#define1#define2

完成“2.2.1FAT文件系統(tǒng)支持”和“2.2.2MMCU-boot支mmcinfommcSD卡的相關(guān)命令。同理完成“2.2.1FAT文件系統(tǒng)支持”和“2.2.3USBOHCIUUSBOHCI驅(qū)動(dòng)是的升級(jí)包到內(nèi)存，燒寫到Flash上的相應(yīng)的位置即可。SD卡自動(dòng)升級(jí)使用手冊(cè)和移植說明.docfatloadmmc00x82000000kernelkernel0x82000000sfprobe0;sferase100000400000;sfwrite0x82000000100000400000;將內(nèi)核燒寫到SPI【燒寫位置可以自行決定】或者直接bootm0x82000000啟動(dòng)新內(nèi)核hisilicon#mmcinfoDevice:HIMCI_V100ManufacturerID:3OEM:5344Name:SD01GTranSpeed:25000000RdBlockLen:512SDversion2.0HighCapacity:NoCapacity:1015808000BusWidth:4-bithisilicon#fatlsmmchisilicon#fatloadmmc00x82000000readingkernel2902412bytesreadhisilicon#bootm##BootingkernelfromLegacyImageat82000000ImageName:Linux-ImageType:ARMLinuxKernelImage(uncompressed)DataSize: 2902348Bytes=2.8MiBLoadAddress:EntryPoint:80008000LoadingKernelImage...OKStartingkernelSD卡自動(dòng)升級(jí)使用手冊(cè)和移植說明.docusbstartUSBfatlsusb0Ufatloadmmc00x42000000kernelkernelsfprobe0;sferase100000600000;sfwrite0x42000000100000600000;將內(nèi)核燒寫到SPI（燒寫位置可以自行決定）或者直接bootm0x42000000啟動(dòng)新內(nèi)核hisilicon#usbstart(Re)startUSB... scanningbusfordevices...2USBDevice(s)scanningbusforstoragedevices...usb_stor_get_info-1StorageDevice(s)hisilicon#fatlsusb02902412kernel220236u-39495683file(s),0hisilicon#fatloadusb00x42000000kernelreadingkernel2902412byteshisilicon#bootm##BootingkernelfromLegacyImageat42000000ImageName:Linux-ImageType:ARMLinuxKernelImage(uncompressed)DataSize: 3941184Bytes=3.8MiBLoadAddress:EntryPoint:40008000LoadingKernelImage...OKStartingkernel計(jì)見3詳細(xì)設(shè)計(jì)。int{#ifdef

#ifdefexternintdo_auto_update(void);#ifdefCFG_MMU_HANDLEOK #ifdefCFG_MMU_HANDLEOK#endif/*CONFIG_AUTO_UPDATE*/return0;}AutoUpdateImage*"StandalonePrograms"aredirectlyrunnableintheprovidedbyU-Boot;itisexpectedthat(iftheywell)youcancontinuetoworkinU-BootafterreturntheStandalone"OSKernelImages"areusuallyimagesofsomeEmbeddedOSwilltakeovercontrolcompletely.Usuallythesewillinstalltheirownsetofexceptionhandlers,drivers,setuptheMMU,etc.-thismeans,thatyouexpecttore-enterU-Bootexceptbyresettingthe"RAMDiskImages"aremoreorlessjustdatablocks,andparameters(address,size)arepassedtoanOSkernelthatbeing"Multi-FileImages"containseveralimages,typicallyan(Linux)kernelimageandoneormoredataimagesRAMDisks.ThisconstructisusefulforinstancewhenyoutobootoverthenetworkusingBOOTPetc.,wheretheserverprovidesjustasingleimagefile,butyouwanttoforinstanceanOSkernelandaRAMDisk"Multi-FileImages"startwithalistofimagesizes,imagesize(inbytes)specifiedbyan"uint32_t"inbyteorder.ThislististerminatedbyanImmediatelyaftertheterminating0followtheimages,oneone,allalignedon"uint32_t"boundaries(sizeroundedupamultipleof4bytes-exceptforthelast"FirmwareImages"arebinaryimagescontainingfirmwareU-BootorFPGAimages)whichusuallywillbeprogrammedflash"Scriptfiles"arecommandsequencesthatwillbeexecutedU-Boot'scommandinterpreter;thisfeatureisusefulwhenyouconfigureU-Boottousearealshellascommandinterpreter(=>Shell#define /*Invalid #defineIH_TYPE_STANDALONE1 /*StandaloneProgram #defineIH_TYPE_KERNEL2 /*OSKernelImage #defineIH_TYPE_RAMDISK3 /*RAMDiskImage #defineIH_TYPE_MULTI4 /*Multi-FileImage*/#defineIH_TYPE_FIRMWARE /*FirmwareImage*/#defineIH_TYPE_SCRIPT6 /*Scriptfile*/#defineIH_TYPE_FILESYSTEM7 /*FilesystemImage(anytype)*/#defineIH_TYPE_FLATDT8 /*BinaryFlatDeviceTreeBlob*/–/*indexofeachfileinthefollowingarrays*/#defineIDX_FIRMWARE0#defineIDX_KERNEL#defineIDX_ROOTFS/*max.numberoffileswhichcouldinterestus*/#defineAU_MAXFILES3#defineAU_FIRMWARE"u-boot"#defineAU_KERNEL #define /*pointerstofilenames*/char*aufile[AU_MAXFILES]={AU_FIRMWARE,autoupdatestruct{longstart;longend;/*layoutoftheFLASH.ST=startaddress,ND=endaddress.*/#defineAU_FL_FIRMWARE_ST0x0#defineAU_FL_FIRMWARE_ND0x7FFFF#defineAU_FL_KERNEL_ST0x100000#defineAU_FL_KERNEL_ND0x5FFFFF#defineAU_FL_ROOTFS_ST0x600000#defineAU_FL_ROOTFS_ND0xbFFFFF/*sizesofflashareasforeachfile*/longausize[AU_MAXFILES]={(AU_FL_FIRMWARE_ND+1)-AU_FL_FIRMWARE_ST,(AU_FL_KERNEL_ND+1)-AU_FL_KERNEL_ST,(AU_FL_ROOTFS_ND+1)-/*arrayofflashareasstartandendaddresses*/structflash_layoutaufl_layout[AU_MAXFILES]={{ {AU_FL_KERNEL_ST,AU_FL_KERNEL_ND,{AU_FL_ROOTFS_ST,AU_FL_ROOTFS_ND,/*wheretoloadfilesintomemory#defineLOAD_ADDR((unsignedchar/*theappisthelargestimage#defineMAX_LOADSZUflash上的步驟：1.SD卡/Uload到內(nèi)存上。步驟2.從內(nèi)存寫到SPIflash上。每個(gè)升級(jí)所用的鏡像的開頭幾個(gè)字節(jié)，都必須包含如下信息：（包括魔術(shù)字、crc校#defineIH_MAGIC 0x27051956/*ImageMagicNumber*/#defineIH_NMLEN 32/*ImageNameLength*/typedefstructimage_header{ ih_magic;/*ImageHeaderMagicNumber /*ImageHeaderCRCChecksum /*ImageCreationTimestamp*/ /*ImageDataSize /*DataLoadAddress /*EntryPointAddress /*ImageDataCRCChecksum*/uint8_tih_os;/*