EST SBC8260 and Canary CTX-1170

Gessner, Matt mattg at aiinet.com
Fri Dec 1 05:41:04 EST 2000


This is a Lucent LU3X31FT IIRC.
I actually wrote some code to initialize the PHY
to put it in full duplex mode.

> -----Original Message-----
> From: Jerry Van Baren [mailto:vanbaren_gerald at si.com]
> Sent: Thursday, November 30, 2000 11:04 AM
> To: linuxppc-embedded at lists.linuxppc.org
> Subject: Re: EST SBC8260 and Canary CTX-1170
>
>
>
> [oops, forgot to send it to the list.  Sorry for the duplicate Jon,
> Brian, Dan]
>
> ...and the other Canary dongle had a chip in it labeled:
>
> Enable
> (c) 1998
> 5v Simple
> 3001AD1E2MJ1C
> 3440903 9934P
>
> I have not tried to track down the manufacturer.
>
> The primary point is that PHYs have different chip sets, even
> ones from
> a single company and labeled with the same part number (maybe
> Canary is
> the only company to do this, but somehow I doubt that :-).
>
> The secondary point is that you should stick to standard MII registers
> if at all possible.  According to 802.3 (1998) Section 22.2.4,
> registers 0-1 are "Basic", 2-10 are "Extended", 11-14 are reserved, 15
> ("Extended Status") is "Basic", and 16-31 are vendor specific.
>
> gvb
>
>
> At 09:47 AM 11/30/00 -0500, diekema_jon wrote:
>
> > > I cracked open my CTX-1170 gizmo and it has a Lucent LU3X51FT-JE80
> > PHY in
> > > it.  I manually set the phy_duplex to 1 and the phy_speed
> to 100, still
> > > no dice.
> >
> >We have several of the CTX-1170 MII, and we have at least two
> >different PHY's in them.  One of the types is the Lucent
> >LU3X51FT-JE80.  I was unable to find a data sheet for the LU3X51FT
> >from http://www.lucent.com/micro, however I was able to find one on
> >the LU3X54FT.  The LU3X54-FT is a quad version of the LU3X51-FT.
> >
> >The cep->phy_type variable in arch/ppc/8260_io/fec_enet.c
> gets derived
> >from the PHY identifer registers 1 / 2.  When I run with FEC2 active,
> >I get a type of 0x00437412.  I would expect this to look something
> >like 0x0180????.
> >
> >#
> ># MPC8260 Communication Options
> >#
> ># CONFIG_SCC_ENET is not set
> >CONFIG_FEC_ENET=y
> ># CONFIG_FCC1_ENET is not set
> >CONFIG_FCC2_ENET=y
> ># CONFIG_FCC3_ENET is not set
> >
> >MPC8260 CPU/CPM/BUS: 200/133/33 Mhz
> >
> >fec: Phy @ 0x0, type 0x00437412
> >
> >
> >When Dan Malek runs with the National Semi PHY DP83840A, how fast
> >is the MPC8260 running?  I think that Dan is running at 166Mhz,
> >if so we might have a timing problem on I2C bus.
> >
> >
>
>

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