From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <85b966411695929ce06c3edd6e3fd77f@plan9.bell-labs.com>
Date: Tue,  6 Oct 2009 12:16:50 -0400
From: geoff@plan9.bell-labs.com
To: 9fans@9fans.net
In-Reply-To: <e7fdc0d20910052244h23ee205eg29ef8b67d1e2af5e@mail.gmail.com>
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Subject: Re: [9fans] /sys/include/ip.h 5c(1)
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The beagleboard is somewhat painful.  It has a cortex-a8 cpu,
which is quite a bit more complex than older arms.  The lack of
built-in ethernet means that getting USB going is vital, but the
EHCI registers provoke access exceptions and the OTG registers
are like no USB interface we've ever seen before.

A beagleboard with built-in ethernet is available from www.igep-platform.com
and looks like a better bet (assuming that they include programming
documentation for their ethernet controller).

If you aren't trying to build a terminal, the marvell sheevaplug
works well: $100 in quantity one, 1.2GHz ARM926EJ-S, 512MB of ram,
some flash, built-in gigabit ethernet, (OTG) USB with a superset of
the EHCI registers (so not completely hopeless).