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| − | This page provides quick U-Boot command reference. Please refer to the [http://www.denx.de/wiki/U-Boot/Documentation U-Boot project documentation] for detailed descriptions of the features listed below.
| + | #REDIRECT [[U-Boot: Quick reference]] |
| − | To get more information about a specific command, type {{cmd|help [command]}} in the U-Boot command line.
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| − | | |
| − | == Information commands ==
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| − | * {{cmd|bdinfo}} - print Board Info structure
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| − | * {{cmd|coninfo}} - print console devices and information
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| − | * {{cmd|flinfo}} - print FLASH memory information
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| − | * {{cmd|help}} - print online help
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| − | | |
| − | == Memory commands ==
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| − | * {{cmd|base}} - print or set address offset
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| − | * {{cmd|crc32}} - checksum calculation
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| − | * {{cmd|cmp}} - memory compare
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| − | * {{cmd|cp}} - memory copy
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| − | * {{cmd|md}} - memory display
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| − | * {{cmd|mm}} - memory modify (auto incrementing)
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| − | * {{cmd|mtest}} - simple RAM test
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| − | * {{cmd|mw}} - memory write (fill)
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| − | * {{cmd|nm}} - memory modify (constant address)
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| − | * {{cmd|loop}} - infinite loop on address range
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| − | | |
| − | == Flash memory commands ==
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| − | * {{cmd|cp}} - memory copy
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| − | * {{cmd|flinfo}} - print FLASH memory information
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| − | * {{cmd|erase}} - erase FLASH memory
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| − | * {{cmd|protect}} - enable or disable FLASH write protection
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| − | | |
| − | == Execution control commands ==
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| − | * {{cmd|autoscr}} - run script from memory
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| − | * {{cmd|bootm}} - boot application image from memory
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| − | * {{cmd|go}} - start application at address 'addr'
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| − | * {{cmd|loop}} - infinite loop on address range
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| − | * {{cmd|exit}} - exit script
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| − | | |
| − | == Download commands ==
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| − | * {{cmd|bootp}} - boot image via network using BOOTP/TFTP protocol
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| − | * {{cmd|dhcp}} - invoke DHCP client to obtain IP/boot params
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| − | * {{cmd|loadb}} - load binary file over serial line (kermit mode)
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| − | * {{cmd|loads}} - load S?Record file over serial line
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| − | * {{cmd|rarpboot}} - boot image via network using RARP/TFTP protocol
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| − | * {{cmd|tftpboot}} - boot image via network using TFTP protocol
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| − | * {{cmd|nfs}} - boot image via network using NFS protocol
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| − | * {{cmd|ping}} - send ICMP ECHO REQUEST to network host
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| − | | |
| − | == Environment variables commands ==
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| − | * {{cmd|printenv}} - print environment variables
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| − | * {{cmd|saveenv}} - save environment variables to persistent storage
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| − | * {{cmd|setenv}} - set environment variables
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| − | * {{cmd|run}} - run commands in an environment variable
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| − | * {{cmd|bootd}} - boot default, i.e., run 'bootcmd'
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| − | | |
| − | == File system support commands ==
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| − | * {{cmd|fatinfo}} - print information about a FAT file system
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| − | * {{cmd|fatload}} - load binary file from a FAT file system
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| − | * {{cmd|fatls}} - list files in a FAT file system directory (default /)
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| − | * {{cmd|fsinfo}} - print information about JFFS2 file system
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| − | * {{cmd|fsload}} - load binary file from a JFFS2 file system image
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| − | * {{cmd|ls}} - list files in a JFFS2 file system directory (default /)
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| − | | |
| − | == NAND flash support ==
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| − | * {{cmd|nand}} - NAND sub-system control
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| − | * {{cmd|nboot}} - boot from NAND device
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| − | | |
| − | == MMC support ==
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| − | * {{cmd|mmcinit}} - detect MMC card
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| − | | |
| − | == USB support ==
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| − | * {{cmd|usb}} - USB sub-system control
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| − | * {{cmd|usbboot}} - boot from USB device
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| − | | |
| − | == Bitmap support ==
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| − | * {{cmd|bmp}} - manipulate BMP image data
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| − | | |
| − | == Miscellaneous commands ==
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| − | * {{cmd|echo}} - echo arguments to console
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| − | * {{cmd|reset}} - Perform RESET of the CPU
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| − | * {{cmd|sleep}} - delay execution for some time
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| − | * {{cmd|version}} - print monitor version
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| − | * {{cmd|test}} - minimal test, like /bin/bash
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| − | * {{cmd|?}} - alias for {{cmd|help}}
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