From: David Updegraff <dave@cray.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Re: 83xx TSEC
Date: Fri, 02 Dec 2005 09:42:53 -0600 [thread overview]
Message-ID: <43906B7D.6000705@cray.com> (raw)
In-Reply-To: <1c3e00040512012156v91f28d8l@mail.gmail.com>
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.
>>
>>
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>
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prev parent reply other threads:[~2005-12-02 15:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-14 23:45 [U-Boot-Users] 83xx TSEC David Updegraff
2005-12-02 5:56 ` Simon Yang
2005-12-02 15:42 ` David Updegraff [this message]
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