Re: about FCC of MPC8270

["Matvejchikov Ilya" <matvejchikov@gmail.com>]

Try 0x3000

2007/7/4, li.chunlin@zte.com.cn <li.chunlin@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@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
>  >