查看“UBootManual”的源代码

=Abstract=
=Introduction=
==Copyright==
==Disclaimer==
==Availability==
==Credits==
==Translations==
==Feedback==
==Conventions==
=Embedded Linux Development Kit=
==ELDK Availability==
==ELDK Getting Help==
==Supported Host Systems==
==Supported Target Architectures==
==Installation==
===Product Packaging===
===Downloading the ELDK===
===Initial Installation===
===Installation and Removal of Individual Packages===
===Removal of the Entire Installation===
==Working with ELDK==
===Switching Between Multiple Installations===
==Mounting Target Components via NFS==
===Rebuilding ELDK Components===
===ELDK Source Distribution===
===Rebuilding Target Packages===
===Rebuilding ELDT Packages===
==ELDK Packages==
===List of ELDT Packages===
===List of Target Packages===
==Rebuilding the ELDK from Scratch==
===ELDK Build Process Overview===
===Setting Up ELDK Build Environment===
===build.sh Usage===
===Format of the cpkgs.lst and tpkgs.lst Files===
==Notes for Solaris 2.x Host Environment==

=System Setup=
==Serial Console Access==
==Configuring the "cu" command==
==Configuring the "kermit" command==
==Using the "minicom" program==
==Permission Denied Problems==
==Configuration of a TFTP Server==
==Configuration of a BOOTP / DHCP Server==
==Configuring a NFS Server==
=Das U-Boot=
==Current Versions==
==Unpacking the Source Code==
==Configuration==
==Installation==
===Before You Begin===
====Installation Requirements====
====Board Identification Data====
===Installation Using a BDM/JTAG Debugger===
===Installation using U-Boot===
==Tool Installation==
==Initialization==
==Initial Steps==
==The First Power-On==
==U-Boot Command Line Interface==
=== Information Commands===
====bdinfo - print Board Info structure====
====coninfo - print console devices and informations====
====flinfo - print FLASH memory information====
====iminfo - print header information for application image====
====help - print online help====
===Memory Commands===
====base - print or set address offset====
====crc32 - checksum calculation====
====cmp - memory compare====
====cp - memory copy====
====md - memory display====
====mm - memory modify (auto-incrementing)====
====mtest - simple RAM test====
====mw - memory write (fill)====
====nm - memory modify (constant address)====
==== loop - infinite loop on address range====
===Flash Memory Commands===
====cp - memory copy====
====flinfo - print FLASH memory information====
====erase - erase FLASH memory====
====protect - enable or disable FLASH write protection====
====mtdparts - define a Linux compatible MTD partition scheme=====
===Execution Control Commands===
====source - run script from memory====
====bootm - boot application image from memory====
====go - start application at address 'addr'====
===Download Commands===
====bootp - boot image via network using BOOTP/TFTP protocol====
====dhcp - invoke DHCP client to obtain IP/boot params====
====loadb - load binary file over serial line (kermit mode)====
====loads - load S-Record file over serial line====
====rarpboot- boot image via network using RARP/TFTP protocol====
====tftpboot- boot image via network using TFTP protocol====
===Environment Variables Commands===
====printenv- print environment variables====
====saveenv - save environment variables to persistent storage====
====setenv - set environment variables====
====run - run commands in an environment variable====
====bootd - boot default, i.e., run 'bootcmd'====
===Flattened Device Tree support===
====fdt addr - select FDT to work on====
====fdt list - print one level====
====fdt print - recursive print====
====fdt mknode - create new nodes====
====fdt set - set node properties====
====fdt rm - remove nodes or properties====
====fdt move - move FDT blob to new address====
====fdt chosen - fixup dynamic info====
=== Special Commands===
====i2c - I2C sub-system====
=== Storage devices===
=== Miscellaneous Commands===
====echo - echo args to console====
====reset - Perform RESET of the CPU====
====sleep - delay execution for some time====
====version - print monitor version====
====? - alias for 'help'====
==U-Boot Environment Variables==
==U-Boot Scripting Capabilities==
==U-Boot Standalone Applications==
==="Hello World" Demo===
===Timer Demo===
===Processor cache considerations===
===Running on core other than core 0===
==U-Boot Image Formats==
==U-Boot Advanced Features==
===Boot Count Limit===