Verification Environment

Before you start to verify the new Ethernet driver, you need to define the environment variables for the following items.

• U-Boot
• Board IP address (by setting the variable of ipaddr)
• Active Ethernet Interface (by setting the variable of ethact)
• Interface MAC address (by setting the variable of ethaddr)

As a single-process operating system, Linux can only operate one Ethernet driver (interface) at a time. Thus you need to specify in the above parameters to inform U-Boot which interface is active before use.

===>print
baudrate=115200
boottargs=console=ttySO,115200 debug rootwait earlycon=sbi
bootcmd=run load_vf2_env;run importbootenv;run boot2;run distro_bootcmd
bootcmd_mmc0=devnum=0; run mmc_boot
bootde|ay=2 
bootdir=/boot 
eth0addr=6c:cf:39:7c:4e:22 
ethladdr=6c:cf:39:7c:3e:53 
ethact=ethernet@16030000 
ethaddr=6c:cf:39:7c:4e:22 
ipaddr=192.168.120.230
netmask=255.255.255.0 
stderr=serial@10000000
stdin=serial@10000000
stdout=serial@10000000