Update命令

set serverip 192.168.*.*

set ipaddr 192.168.*.*

 

protect off all

 

tftp 0x100000 u-boot.bin

erase 0x34000000 +0x800000

cp.b 0x100000 0x34000000 0x80000

 

tftp 0x500000 uImage

erase 0x34080000 +0x180000

cp.b 0x500000 0x34080000 0x180000

 

tftp 0x400000 rootfs

erase 0x34260000 0x347fffff

cp.b 0x400000 0x34260000 0x50000

 

setenv bootargs 'root=/dev/mtdblock/2 rw rootfstype=jffs2 console=ttyS0,115200 mem=40M mtdparts=phys_mapped_flash:512k(u-boot),1536k(kernel),5760k(fs)'
setenv bootcmd mw 7400000 0 300000\;bootm 0x34080000
saveenv

 

bootargs: 传递给linux内核的命令行参数

bootcmd：自动启动时执行的几条命令

 

bootargs定义命令行参数，通过bootm命令传递给内核