From: Gerhard Jaeger <g.jaeger@sysgo.com>
To: linuxppc-embedded@ozlabs.org
Subject: Which PHY connection to use on MPC8541...
Date: Tue, 11 Oct 2005 12:13:39 +0200 [thread overview]
Message-ID: <200510111213.39859.g.jaeger@sysgo.com> (raw)
Hi list,
we're currently designing a custon MPC8541 based board having three ethernet connections.
For some reasons, we'd like to use the FCC1 and 2 + TSEC1. From what I see from the
docs, it should be no problem to connect i.e. a quad phy (for FCC1/2) and a gigabit phy
(for TSEC1) to the EC_MDIO of the TSEC as long as they have different addresses.
I don't want to use the GPIO stuff for MDIO.
The question is, what does this mean to the drivers? For the gianfar driver this should
be okay and from what I see, the upcoming fs_enet driver supports also a phy
connected either to the GPIOs (bitbanging) or the TSEC MDIO. Is this right, or am I
missing something essential?
Would it be better to use the GPIO-MDIO for the FCC phy and the TSEC-MDIO
for the TSEC phy?
TIA
Gerhard
next reply other threads:[~2005-10-11 10:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-11 10:13 Gerhard Jaeger [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-10-11 10:57 Which PHY connection to use on MPC8541 Stefan Nickl
2005-10-11 18:05 ` Andy Fleming
2005-10-12 6:43 ` Gerhard Jaeger
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