u-boot环境变量

   原版sd卡启动android的uboot环境变量：

   bootdelay=1

baudrate=115200

loadaddr=0x90800000

netdev=eth0

ethprime=FEC0

uboot_addr=0xa0000000

uboot=u-boot.bin

kernel=uImage

rd_loadaddr=0x90C00000

nfsroot=/opt/eldk/arm

bootargs_base=setenv bootargs console=ttymxc0,115200 gpu_memory=16M

bootargs_nfs=setenv bootargs ${bootargs} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp

bootcmd_net=run bootargs_base bootargs_nfs; tftpboot ${loadaddr} ${kernel}; bootm

prg_uboot=tftpboot ${loadaddr} ${uboot}; protect off ${uboot_addr} 0xa003ffff; erase ${uboot_addr} 0xa003ffff; cp.b ${loadaddr} ${uboot_addr} ${filesize}; setenv filesize; saveenv

bootcmd=run bootcmd_SD 

bootcmd_SD=run bootargs_base bootargs_android;mmc read 0 ${loadaddr} 0x800 1800;mmc read 0 ${rd_loadaddr} 0x2000 0x258;bootm ${loadaddr} ${rd_loadaddr}

bootargs_android=setenv bootargs ${bootargs}  androidboot.console=ttymxc0 init=/init di1_primary calibration

bootcmd_android_recovery=run bootargs_base bootargs_android_recovery;mmc read 0 ${loadaddr} 0x800 0x1800;bootm

bootargs_android_recovery=setenv bootargs ${bootargs} init=/init root=/dev/mmcblk0p4 rootfs=ext4 di1_primary 

ethact=FEC0

ipaddr=192.168.2.222

ethaddr=192.168.2.1

stdin=serial

stdout=serial

stderr=serial

bootargs=console=ttymxc0,115200 gpu_memory=16M androidboot.console=ttymxc0 init=/init di1_primary calibration

Environment size: 1313/131068 bytes