* MPC875 using SCC4 together with both FECs
@ 2006-02-07 22:24 dibacco
2006-02-07 22:59 ` Dan Malek
0 siblings, 1 reply; 3+ messages in thread
From: dibacco @ 2006-02-07 22:24 UTC (permalink / raw)
To: linuxppc-embedded
Someone knows if, in MPC875, SCC4 can be used together with the two FECs?=
I saw that RXD4(input SCC4) shares the same GPIO with MII-TXD0 (output o=
f FEC0).
Thank you,
Antonio.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: MPC875 using SCC4 together with both FECs
2006-02-07 22:24 MPC875 using SCC4 together with both FECs dibacco
@ 2006-02-07 22:59 ` Dan Malek
2006-02-07 23:01 ` Pantelis Antoniou
0 siblings, 1 reply; 3+ messages in thread
From: Dan Malek @ 2006-02-07 22:59 UTC (permalink / raw)
To: dibacco@inwind.it; +Cc: linuxppc-embedded
On Feb 7, 2006, at 5:24 PM, dibacco@@inwind..it wrote:
> Someone knows if, in MPC875, SCC4 can be used together with the two
> FECs? I saw that RXD4(input SCC4) shares the same GPIO with MII-TXD0
> (output of FEC0).
That's a correct observation, you can't do it. I don't remember
and don't have documentation handy, but would it work in
RMII mode? Otherwise, you will have to step up to the MPC870.
-- Dan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: MPC875 using SCC4 together with both FECs
2006-02-07 22:59 ` Dan Malek
@ 2006-02-07 23:01 ` Pantelis Antoniou
0 siblings, 0 replies; 3+ messages in thread
From: Pantelis Antoniou @ 2006-02-07 23:01 UTC (permalink / raw)
To: Dan Malek; +Cc: linuxppc-embedded
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On 2/7/06, Dan Malek <dan@embeddedalley.com> wrote:
>
>
> On Feb 7, 2006, at 5:24 PM, dibacco@@inwind..it wrote:
>
> > Someone knows if, in MPC875, SCC4 can be used together with the two
> > FECs? I saw that RXD4(input SCC4) shares the same GPIO with MII-TXD0
> > (output of FEC0).
>
> That's a correct observation, you can't do it. I don't remember
> and don't have documentation handy, but would it work in
> RMII mode? Otherwise, you will have to step up to the MPC870.
>
>
> -- Dan
IIRC it can in RMII mode...
Don't hold me on that however, no manual and no time to look.
Pantelis
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-02-07 22:24 MPC875 using SCC4 together with both FECs dibacco
2006-02-07 22:59 ` Dan Malek
2006-02-07 23:01 ` Pantelis Antoniou
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