u-boot, MPC8313erdb

[Nidhi Dua]

We are using the board MPC8313ERDB and we are facing problems regarding
u-boot environment variables(the environment variables displayed after
giving 'printenv' command at u-boot prompt).

We are following the steps stated as below:

1. =>printenv

output is:
....
....
bootargs=root=/dev/mtdblock2 rootfstype=jffs2 rw console=ttyS0,115200
bootcmd=bootm fe100000 - fe700000
filesize=1a4a05
fileaddr=200000
ipaddr=192.168.1.101
serverip=192.168.1.57
stdin=serial
stdout=serial
stderr=serial
ethact=TSEC0


Here ethact is TSEC0 by default.

2. =>setenv ethact TSEC1
3. =>saveenv
output:
Saving Environment to Flash...
Un-Protected 1 sectors
Erasing Flash...
. done
Erased 1 sectors
Writing to Flash... done
Protected 1 sectors

Here we have set the ethact variable to TSEC1 and saved it. Now it is
showing that this value of ethact is burnt in flash. But after the board is
reset,

4. =>printenv

ileaddr=200000
ipaddr=192.168.1.101
serverip=192.168.1.57
stdin=serial
stdout=serial
stderr=serial
ethact=TSEC0

Here again the value of ethact is changed to TSEC0.

we have following questions:

question 1: We want to know the reason why it(ethact variable) changes to
TSEC0 everytime with a reset.

question2: After we have set ethact to TSEC1 and saved it(=>saveenv) and
tried to ping the Host from u-boot prompt it is working (displaying: 'host
alive').
But when we are trying to ping Target board from the host it is showing:

PING 192.168.1.101 (192.168.1.101) 56(84) bytes of data.