Nidhi Dua ha scritto:
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.
From 192.168.1.57 icmp_seq=2 Destination Host Unreachable
From 192.168.1.57 icmp_seq=3 Destination Host Unreachable
....
....
--- 192.168.1.101 ping statistics ---
12 packets transmitted, 0 received, +9 errors, 100% packet loss, time
11002ms
, pipe 3
Why is it happening so?
question 3: After we have set 'ethact' to TSEC1, the kernel is loaded, and
we have logged -in, when we try to ping the Host from target it says '100%
packet lost'. also we are unable to ping target from the host. Why is it
happening so?
Awaiting a prompt reply
Regards
Nidhi Dua
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You have to set ethprime=TSEC1 because ethact isn't saved, but surely
you can find more information in the U-Boot mailing list.
--
Marco Stornelli
Embedded Software Engineer
CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni
http://www.coritel.it
[EMAIL PROTECTED]
+39 06 72582838
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