uboot 常用命令汇总

U-boot常用命令

常用的命令

tftpboot 下载固件等tftpboot 0x44000000 xxx.imgimgaddr=0x44000000 && source $imgaddr:scriptmd 展示内存内容 md 0x44000000 128 # 打印128个地址的内容
nand erase   < start > < size >
nand erase 0x7d00000 0x4000000nand write < memory addr > < offset in flash (target addr) > < size >setenv 一些变量的配置保存和读取
saveenv
printenvubi相关命令
ubi part xxx
ubi read 0x44000000 kernel
ubifsmount
ubifsunmount
ubifsload -- 这个命令有问题，有时并不能读取数据，但是在linux下就可以正常mount. 上面两个类似
ubi check xxx 检查卷是否存在 $?看结果
ubi info 

如下是目前在QSDK中的一些命令：

IPQ5018# help
?       - alias for 'help'
ar8xxx_dump- Dump ar8xxx registers
base    - print or set address offset
bdinfo  - print Board Info structure
bootelf - Boot from an ELF image in memory
bootipq - bootipq from flash device
bootm   - boot application image from memory
bootp   - boot image via network using BOOTP/TFTP protocol
bootvx  - Boot vxWorks from an ELF image
bootz   - boot Linux zImage image from memory
canary  - test stack canary
chpart  - change active partition
cmp     - memory compare
coninfo - print console devices and information
cp      - memory copy
crc32   - checksum calculation
dhcp    - boot image via network using DHCP/TFTP protocol
dm      - Driver model low level access
echo    - echo args to console
editenv - edit environment variable
env     - environment handling commands
erase   - erase FLASH memory
exectzt - execute TZTexit    - exit script
false   - do nothing, unsuccessfully
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls   - list files in a directory (default /)
fatsize - determine a file's size
fatwrite- write file into a dos filesystem
fdt     - flattened device tree utility commands
flash   - flash part_nameflash part_name load_addr file_sizeflasherase- flerase part_nameflinfo  - print FLASH memory information
fuseipq - fuse QFPROM registers from memorygo      - start application at address 'addr'
help    - print command description/usage
i2c     - I2C sub-system
imxtract- extract a part of a multi-image
ipq5018_mdio- IPQ5018 mdio utility commands
ipq_mdio- IPQ mdio utility commands
is_sec_boot_enabled- check secure boot fuse is enabled or notitest   - return true/false on integer compare
loop    - infinite loop on address range
md      - memory display
mii     - MII utility commands
mm      - memory modify (auto-incrementing address)
mmc     - MMC sub system
mmcinfo - display MMC info
mtdparts- define flash/nand partitions
mtest   - simple RAM read/write test
mw      - memory write (fill)
nand    - NAND sub-system
nboot   - boot from NAND device
nfs     - boot image via network using NFS protocol
nm      - memory modify (constant address)
part    - disk partition related commands
pci     - list and access PCI Configuration Space
ping    - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
protect - enable or disable FLASH write protection
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
runmulticore- Enable and schedule secondary cores
saveenv - save environment variables to persistent storage
secure_authenticate- authenticate the signed imagesetenv  - set environment variables
setexpr - set environment variable as the result of eval expression
sf      - SPI flash sub-system
showvar - print local hushshell variables
sleep   - delay execution for some time
smeminfo- print SMEM FLASH information
source  - run script from memory
test    - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
tftpput - TFTP put command, for uploading files to a server
true    - do nothing, successfully
tzt     - load and run tztuart    - UART sub-system
ubi     - ubi commands
ubifsload- load file from an UBIFS filesystem
ubifsls - list files in a directory
ubifsmount- mount UBIFS volume
ubifsumount- unmount UBIFS volume
usb     - USB sub-system
usbboot - boot from USB device
version - print monitor, compiler and linker version
zip     - zip a memory region