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→Quick start (NELK)
At the end of its boot sequence, U-Boot prints <code style="board-terminal">NAON#</code> prompt and waits for user commands.
The default u-boot environment can be printed using the <code style="board-terminal">print</code> command:
<pre class="board-terminal">
NAON#print
bootcmd=run net_nfs
bootdelay=3
baudrate=115200
autoload=yes
verify=yes
bootfile=naon/uImage
ramdisk_file=ramdisk.gz
loadaddr=0x81000000
spi_update_1st=sf probe 0:0; sf erase 0x0 0x20000; sf write ${loadaddr} 0x0 0x20000
spi_update=sf probe 0:0; sf erase 0x20000 0x40000; sf write ${loadaddr} 0x20000 0x40000
loadk=tftp ${loadaddr} ${bootfile}
spi_updatek=sf probe 0:0; sf erase 0x80000 0x300000; sf write ${loadaddr} 0x80000 0x300000
console=ttyO0
addcons=setenv bootargs ${bootargs} console=${console},115200n8 earlyprintk
addmem=setenv bootargs ${bootargs} mem=${mem} vram=${vram} notifyk.vpssm3_sva=${notify_mem}
addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gateway}:${netmask}:${hostname}:${ethdev}
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} panic=5
net_nfs=run loadk nfsargs addip addcons addmem; bootm ${buf}
nandargs=setenv bootargs root=/dev/mtdblock12 rw rootfstype=jffs2
spi_nand=run nandargs addip addcons addmem; sf probe 0:0; sf read ${loadaddr} 0x80000 0x300000; bootm ${loadadd}
mmcargs=setenv bootargs root=/dev/mmcblk0p1 rw
spi_mmc=run mmcargs addip addcons addmem; sf probe 0:0; sf read ${loadaddr} 0x80000 0x300000; bootm ${loadaddr}
ipaddr=192.168.0.77
serverip=192.168.0.23
netmask=255.255.255.0
gateway=192.168.0.254
hostname=naon
rootpath=/home/shared/devel/dave/naon-DAA/sw/linux/sdk/rfs/nelk
ethdev=eth0
mem=176M
vram=46M
notify_mem=0xBF900000
ethaddr=d4:94:a1:8e:68:24
ethact=cpsw
spi_load_1st=tftp ${loadaddr} naon/u-boot.min.spi
load=tftp ${loadaddr} naon/u-boot_new.bin
stdin=serial
stdout=serial
stderr=serial
Environment size: 1588/65532 bytes
</pre>
If you have the SD/MMC provided with the development kit, you can run the following command:
