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Date:      Tue, 2 Oct 2018 05:42:48 +0200
From:      Marcin Wojtas <mw@semihalf.com>
To:        pygr@sonic.net
Cc:        freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: ClearFog Base -- "status: no carrier" for mvneta1
Message-ID:  <CAPv3WKeDxTnqh_fnz8MYYU-QRCos7-7sN898Pc0=pt9wZTT1=w@mail.gmail.com>
In-Reply-To: <03261C47-F7E5-46D6-9A91-B8FFDD96FDE3@sonic.net>
References:  <03261C47-F7E5-46D6-9A91-B8FFDD96FDE3@sonic.net>

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Hi Glenn,

I can see, that armada-388-clearfog-base.dts connects eth1 to a PHY via MDI=
O.
Unfortunately my Clearfog boards have the SFP cage connected only to
the SGMII lanes only (no PHY).

Can you please try to boot with armada-388-clearfog.dts, where the SFP
cage is configured as the 'fixed-link' and let know?

Best regards,
Marcin

pt., 28 wrz 2018 o 18:47 glenn <pygr@sonic.net> napisa=C5=82(a):
>
> With a recent build from source (FreeBSD  12.0-ALPHA7 FreeBSD 12.0-ALPHA7=
 7fe1a714461(master) ARMADA38X  arm) the ethernet port on a ClearFog Base n=
ear the USB sockets works well, but the port near the SFP cage doesn=E2=80=
=99t. ifconfig shows "mvneta1: status: no carrier=E2=80=9D.
>
> Both ports are connected to a gigabit switch. The green link LED on the C=
learFog Base for mvneta0 is on most of the time, but flickering; the green =
link LED for mvneta1 is on without flickering. On the switch, the correspon=
ding link LED for mvneta0 is on constantly, the LED for mvneta1 is off.
>
> I don=E2=80=99t believe it=E2=80=99s a hardware issue, because, if the pa=
tch cables are swapped at the board, mvneta1 still shows no carrier and whi=
ch LED on the switch is illuminated swaps. Also, without touching the cable=
s or switch, Debian can be booted up using a different SD card, and both et=
hernet ports are functional with no special action taken.
>
> The device tree file being used is compiled from armada-388-clearfog-base=
.dts in the FreeBSD source, but edited to allow the serial console to work.
>
> What might it take to get that second ethernet port to work? A modificati=
on of the device tree file? A modification of the mvneta or miibus driver? =
A modification of u-boot? Or, perhaps, just a simple configuration step?
>
> Glenn
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