From: "Matvejchikov Ilya" <matvejchikov@gmail.com>
To: "li.chunlin@zte.com.cn" <li.chunlin@zte.com.cn>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: about FCC of MPC8270
Date: Wed, 4 Jul 2007 09:42:26 +0400 [thread overview]
Message-ID: <8496f91a0707032242w40c0f398s87ab5a9249c0e902@mail.gmail.com> (raw)
In-Reply-To: <OF067D5541.23C80493-ON4825730E.001766FC-4825730E.00183FCF@zte.com.cn>
Hi!
Do you use CPM_FCC_SPECIAL_BASE constant? (include/asm-ppc/cpm2.h)
In my case (8250, 8260) FCCs only works when it is set to 0x3000...
2007/7/4, li.chunlin@zte.com.cn <li.chunlin@zte.com.cn>:
>
> hello, every one
>
> I have a board with mpc8270. And there are two ethernet interface by fcc1
> and fcc2. Now in linux kernel 2.6.14 fcc1 is ok, but fcc2 is some wrong. I
> set loopback of fcc2 or rmii. that's ok. But i set loopback in phy, it is
> wrong. But fcc2 is ok in u-boot.
>
> I take a look with oscillograph. i find that there is signal from fcc2 to
> phy and there is signal from phy to fcc2 in data pins. But fcc2 cannot
> receive data and fcc2 can send data.
>
> who know the reason? Can you tell me?
>
> thanks.
> lichunlin
>
next prev parent reply other threads:[~2007-07-04 5:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-03 14:54 OF devices and non OF devices Kári Davíðsson
2007-07-03 16:31 ` John Rigby
2007-07-04 4:24 ` about FCC of MPC8270 li.chunlin
2007-07-04 5:42 ` Matvejchikov Ilya [this message]
2007-07-04 6:55 ` li.chunlin
2007-07-04 7:02 ` Matvejchikov Ilya
2007-07-04 7:50 ` li.chunlin
2007-07-04 12:00 ` OF devices and non OF devices Kári Davíðsson
2007-07-05 13:28 ` John Rigby
2007-07-05 17:20 ` John Rigby
2007-07-18 11:13 ` Kári Davíðsson
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