about FCC of MPC8270

li.chunlin at zte.com.cn li.chunlin at zte.com.cn
Wed Jul 4 17:50:33 EST 2007

Not ok with 0x3000

"Matvejchikov Ilya" <matvejchikov at gmail.com>

        收件人:        "li.chunlin at zte.com.cn" <li.chunlin at zte.com.cn>
        抄送:  linuxppc-embedded at ozlabs.org
        主题:  Re: about FCC of MPC8270

Try 0x3000

2007/7/4, li.chunlin at zte.com.cn <li.chunlin at zte.com.cn>:
> I use it. And it is: #define CPM_FCC_SPECIAL_BASE ((uint)0x0000b000)
> 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 at zte.com.cn <li.chunlin at zte.com.cn>:
>  >
>  > hello, every one
>  >
>  >    I have a board with mpc8270. And there are two ethernet interface 
> fcc1
>  > and fcc2. Now in linux kernel 2.6.14 fcc1 is ok, but fcc2 is some 
> 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 
>  > receive data and fcc2 can send data.
>  >
>  > who know the reason? Can you tell me?
>  >
>  > thanks.
>  > lichunlin
>  >

ZTE Information Security Notice: The information contained in this mail is solely property of the sender's organization. This mail communication is confidential. Recipients named above are obligated to maintain secrecy and are not permitted to disclose the contents of this communication to others.
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the originator of the message. Any views expressed in this message are those of the individual sender.
This message has been scanned for viruses and Spam by ZTE Anti-Spam system.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20070704/c7a206a2/attachment.htm 

More information about the Linuxppc-embedded mailing list