[U-Boot-Users] 83xx TSEC

[U-Boot-Users] 83xx TSEC

[David Updegraff]

Hi.

Anyone know of any registers to look at in the TSEC stuff that might 
tell a guy why a frame is not moving?

Our PHY looks fine; 'mii dump' is fine, link up, etc. but in tsec_send() 
the buffer of a ping is loaded up, and simply never goes anywhere. 
->tstat remains clear (no halt bit), but rtx.txbd[txIdx].status never 
changes from assigned value.

Stats claim no frames; which is correct.  I need some help in 
understanding why TSEC feels it cannot feed anything out the inerface.

Thanx.

-dbu.

[U-Boot-Users] 83xx TSEC

[Simon Yang]

Hi David,

Have you resolved this now? Now I am also working with 83xx TSEC, but
we also meet the problem,in MDIO and MDC there isn't any signal, I
wonder if you meet the same problem in your board and whether you can
give me some comment on this!

Best Regards,

Simon

2005/9/15, David Updegraff <dave@cray.com>:
> Hi.
>
> Anyone know of any registers to look at in the TSEC stuff that might
> tell a guy why a frame is not moving?
>
> Our PHY looks fine; 'mii dump' is fine, link up, etc. but in tsec_send()
> the buffer of a ping is loaded up, and simply never goes anywhere.
> ->tstat remains clear (no halt bit), but rtx.txbd[txIdx].status never
> changes from assigned value.
>
> Stats claim no frames; which is correct.  I need some help in
> understanding why TSEC feels it cannot feed anything out the inerface.
>
> Thanx.
>
> -dbu.
>
>
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[U-Boot-Users] Re: 83xx TSEC

[David Updegraff]

Simon

My problem here had been my own carelessness combined with HW trouble: I
had an incorrect bit in RCW, and we had voltage levels wrong to PHY.
Nothing to do with u-boot code.

Our PHY is also not explicitly supported; so i submitted a patch to
support un-recognized PHYs as 'generic'; like the linux gianfar driver
does.  But it has languished uncommitted; I dunno why.

> Have you resolved this now? Now I am also working with 83xx TSEC, but
> we also meet the problem,in MDIO and MDC there isn't any signal, I
> wonder if you meet the same problem in your board and whether you can
> give me some comment on this!
> 
> Best Regards,
> 
> Simon
> 
> 2005/9/15, David Updegraff <dave@cray.com>:
> 
>>Hi.
>>
>>Anyone know of any registers to look at in the TSEC stuff that might
>>tell a guy why a frame is not moving?
>>
>>Our PHY looks fine; 'mii dump' is fine, link up, etc. but in tsec_send()
>>the buffer of a ping is loaded up, and simply never goes anywhere.
>>->tstat remains clear (no halt bit), but rtx.txbd[txIdx].status never
>>changes from assigned value.
>>
>>Stats claim no frames; which is correct.  I need some help in
>>understanding why TSEC feels it cannot feed anything out the inerface.
>>
>>Thanx.
>>
>>-dbu.
>>
>>
>>-------------------------------------------------------
>>SF.Net email is sponsored by:
>>Tame your development challenges with Apache's Geronimo App Server. Download
>>it for free - -and be entered to win a 42" plasma tv or your very own
>>Sony(tm)PSP.  Click here to play: http://sourceforge.net/geronimo.php
>>_______________________________________________
>>U-Boot-Users mailing list
>>U-Boot-Users at lists.sourceforge.net
>>https://lists.sourceforge.net/lists/listinfo/u-boot-users
>>
> 
> 
> 
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