uboot 开发之其常见命令

U-Boot 2009.06-2.0.6-svn50281 (10鏈02 2015 - 20:35:08)

=== U-Boot DDR Reserved Area ===
  !! Please do not write any data to these locations. !!
  TEXT section  : 0x00002000 -> 0x00019b7c
  BSS  section  : 0x00019b7c -> 0x0001db64
  MALLOC Area   : 0x0001db64 -> 0x0031db64
  STACK         : 0x0031dbe4 -> 0x00368bf0
  GMAC Desc/Buf : 0x00368c00 -> 0x00374e00

=== DRAM Configuration ===
  Bank #0      : 0x00000000 512 MB

=== SPI FLASH Configuration ===
SPIFLASH: Got idcode c2 20 18 c2 20
SF: Detected MX25L12805D with page size 256, total 16 MB
  There are 1 SPI FLASH, total 16 MB

=== Boot Configuration ===
  Boot Storage : Serial Flash
  Finding the environment variables in boot storage...
SPIFLASH: Got idcode c2 20 18 c2 20
SF: Detected MX25L12805D with page size 256, total 16 MB
  The environment varialbes stored in Serial Flash are found.

=== Net Configuration  ===(5 PHY TYPE     : ICPlus IP101A/G(mii)
  Link Detect  : GMAC Waiting for PHY auto negotiation to complete.... done
  Link Status  : Link Up
               : Full Duplex
  Link Speed   : 100Mbps
  MAC Address  : 02 00 dc 00 11 57

=== Model Name ===
  Model Name : M388c

=== Loader Info ===
  Loader Version# : 0x15050701 (This value is stored at 0x41001000)

Hit any key to stop autoboot:  0 
U-Boot> ifconfig
Unknown command 'ifconfig' - try 'help'
U-Boot> ?
?       - alias for 'help'
base    - print or set address offset
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootm   - boot application image from memory
bootp   - boot image via network using BOOTP/TFTP protocol
cmp     - memory compare
cp      - memory copy
crc32   - checksum calculation
dce     - DCE
echo    - echo args to console
efuse   - eFuse read/write
go      - start application at address 'addr'
gpio    - Set gpio pins
help    - print online help
jump    - Boot Linux kernel image from memory
loop    - infinite loop on address range
md      - memory display
mm      - memory modify (auto-incrementing)
mmc     - MMC sub system
mmcinfo - display MMC info
mtest   - simple RAM test
mw      - memory write (fill)
nm      - memory modify (constant address)
printenv- print environment variables
reserved- print reserved area
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
sdread  - Read SD card content
setenv  - set environment variables
setnet  - Set net environment variables for EVM.
sf      - SPI flash sub-system
sleep   - delay execution for some time
source  - run script from memory
tftpboot- boot image via network using TFTP protocol
version - print monitor version
U-Boot> base
Base Address: 0x00000000
U-Boot> crc32
Usage:
crc32 - checksum calculation

U-Boot> echo 88
88
U-Boot> efuse
argc: 1
mode: 1
start: 18551
####################################
eFuse read start...
bit Addr 0 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 1 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 2 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 3 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 4 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 5 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 6 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 7 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 8 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr 9 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr a 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr b 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr c 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr d 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr e 1,  1,  1,  1,  1,  1,  1,  1, 
bit Addr f 1,  1,  1,  1,  1,  1,  1,  1, 
eFuse read done.
####################################
data[ 31:  0]: ffffffff, 
data[ 63: 32]: ffffffff, 
data[ 95: 64]: ffffffff, 
data[127: 96]: ffffffff
end: 14574
U-Boot> md
Usage:
md - memory display

U-Boot> version

U-Boot 2009.06-2.0.6-svn50281 (10鏈02 2015 - 20:35:08)
U-Boot> help
?       - alias for 'help'
base    - print or set address offset
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootm   - boot application image from memory
bootp   - boot image via network using BOOTP/TFTP protocol
cmp     - memory compare
cp      - memory copy
crc32   - checksum calculation
dce     - DCE
echo    - echo args to console
efuse   - eFuse read/write
go      - start application at address 'addr'
gpio    - Set gpio pins
help    - print online help
jump    - Boot Linux kernel image from memory
loop    - infinite loop on address range
md      - memory display
mm      - memory modify (auto-incrementing)
mmc     - MMC sub system
mmcinfo - display MMC info
mtest   - simple RAM test
mw      - memory write (fill)
nm      - memory modify (constant address)
printenv- print environment variables
reserved- print reserved area
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
sdread  - Read SD card content
setenv  - set environment variables
setnet  - Set net environment variables for EVM.
sf      - SPI flash sub-system
sleep   - delay execution for some time
source  - run script from memory
tftpboot- boot image via network using TFTP protocol
version - print monitor version
U-Boot> help md
md [.b, .w, .l] address [# of objects]
          - memory display
U-Boot> printenv
bootcmd=run setargs;sf read 0xa00000 0x40000 0x2C0000;jump 0xa00000
bootdelay=3
baudrate=38400
phy_mode=mii
setargs=setenv bootargs ${bootargs} ${mtdparts};setenv bootargs ${bootargs} phy_mode=${phy_mode};
auto_quicktest=0
filesize=1000000
fileaddr=A00000
ethaddr=02:00:DC:00:11:57
modelname=M388c
serverip=192.168.1.239
netmask=255.255.255.0
gatewayip=172.17.0.1
ipaddr=172.17.220.87
bootargs=root=/dev/mtdblock2 mem=48M console=2,38400 user_debug=8

Environment size: 451/65532 bytes



  

 

  
 
 

  
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文章来源: blog.csdn.net，作者：悟空胆好小，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/xushx_bigbear/article/details/123364527