mpc8313erdb

mpc8313erdb

[Nidhi Dua]

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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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Re: mpc8313erdb

[Marco Stornelli]

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
> 
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded

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

marco.stornelli@coritel.it
+39 06 72582838

mpc8313erdb

[Nidhi Dua]

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---------- Forwarded message ----------
From: Nidhi Dua <dua.nidhi2007@gmail.com>
Date: Fri, Jun 20, 2008 at 10:57 AM
Subject: mpc8313erdb
To: inuxppc-embedded@ozlabs.org


Dear All

I am using evaluation board MPC8313ERDB. Earlier i was having issues with
the uboot environment variable 'ethact'. I am using eth1 (i.e TSEC1).
earlier each time i used to reset the board it used to toggle back to TSEC0.
But now after setting ethprime=TSEC1 that problem is rectified.

The second issue i am having is:
after the board gets booted and kernel gets loaded, if i try to ping the
board from host or to ping host from board, it is not working. Can anyone
help me with this?

Awaiting a prompt reply...

thanks in advance

regards
Nidhi

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Re: mpc8313erdb

[Carlos Roberto Moratelli]

> Date: Fri, 20 Jun 2008 16:12:20 +0530
> From: "Nidhi Dua" <dua.nidhi2007@gmail.com>
> Subject: mpc8313erdb
> To: linuxppc-embedded@ozlabs.org
> Message-ID:
> 	<d8b992c20806200342q4e040a44y459a736fbd061592@mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> 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.
> 

This variable (ethact) isn't save with the enviroment variables. 

> 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?

Ping from a host to U-Boot should't work. U-Boot isn't able to respond a
ping protocol. Maybe this link can be usefull:

http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:faq

> 
> 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?
> 

After the kernel boot, did you try using ifconfig command to configure
the ethernet interface?

> Awaiting a prompt reply
> Regards
> Nidhi Dua

I hope this can help you.

Regards

Carlos R. Moratelli