u-boot启动内核所要传的参数

最重要的是bootargs 和bootcmd

cpu=s3c2440

bbl=tftp 30008000 u-boot-$cpu.bin;nand erase 0 100000;nand write 30008000 0 $filesize
norbbl=erase bank 1; tftp 30008000 u-boot-$cpu.bin;cp.b 30008000 0 $filesize
blx=tftp 30008000 linuxrom-$cpu.bin;nand erase 100000 F00000;nand write 30008000 100000 $filesize
bramdisk=tftp 30800000 ramdisk-$cpu.rootfs;nand erase 1000000 1400000;nand write 30800000 1000000 $filesize
bjffs2=tftp 30800000 jffs2-$cpu.rootfs;nand erase 3800000 2800000;nand write 30800000 3800000 $filesize
byaffs2=tftp 30800000 yaffs2-$cpu.rootfs;nand erase 6000000 2800000;nand write 30800000 6000000 $filesize
bubifs=tftp 30800000 ubifs-$cpu.rootfs;nand erase 8800000 2800000;nand write 30800000 8800000 $filesize
tb=tftp 30008000 linuxrom-$cpu.bin;bootm 30008000 
bootargs_initamfs=console=ttyS0,115200 mem=64M rw loglevel=7
bootargs_ramdisk=console=ttyS0,115200 root=/dev/ram0 initrd=0x30800000,16M init=/linuxrc mem=64M rw loglevel=7
bootargs_cramfs=console=ttyS0,115200 root=/dev/mtdblock3 rootfstype=cramfs init=/linuxrc mem=64M noinitrd loglevel=7
bootargs_jffs2=console=ttyS0,115200 root=/dev/mtdblock4 rootfstype=jffs2 init=/linuxrc mem=64M rw noinitrd loglevel=7
bootargs_ubifs=console=ttyS0,115200 ubi.mtd=6 root=ubi0:rootfs rootwait rootfstype=ubifs init=/linuxrc mem=64M noinitrd rw loglevel=7
mtdids=nand0=nand0
mtdparts=mtdparts=nand0:1m(uboot),15m(kernel),20m(ramdisk),20m(cramfs),20m(jffs2),20m(yaffs2),20m(ubifs),-(users)
bootdelay=1
baudrate=115200
ethaddr=08:00:3e:26:0a:6b
ethact=dm9000
hh=tftp 30008000 linuxrom-s3c2440.bin;bootm 30008000
bootargs_nfs=noinitrd console=ttyS0,115200 init=/linuxrc mem=64M loglevel=7 root=/dev/nfs rw nfsroot=192.168.1.36:/home/guanlei/fl2440/rootfs/ ip=192.168.1.111:192.168.1.36:192.168.1.1:255.255.255.0:centos6:eth0:off
bootcmd_initramdisk=nand read 30008000 100000 800000;bootm 30008000
bkr=tftp 30008000 linuxrom-s3c2440.bin;nand erase 100000 800000;nand write 30008000 100000 800000
brdfs=tftp 30008000 ramdisk.gz;nand erase 500000 a00000;nand write 30008000 500000 500000
bootcmd_ramdisk=nand read 30008000 100000 400000;nand read 30800000 500000 500000;bootm 30008000
bootcmd_rootfs=nand read 30008000 100000 400000;bootm 30008000
filesize=278C6C
fileaddr=30008000
netmask=255.255.255.0
ipaddr=192.168.1.111
serverip=192.168.1.110
bcramfs=tftp 30800000 rootfs.cramfs;nand erase f00000 600000;nand write 30800000 f00000 600000
bootargs=console=ttyS0,115200 root=/dev/mtdblock3 rootfstype=cramfs init=/linuxrc mem=64M noinitrd loglevel=7
bootcmd_cramfs=nand read 30008000 100000 400000;bootm 30008000
bootcmd=run bootcmd_cramfs
stdin=serial
stdout=serial
stderr=serial