Date: Mon, 2 Dec 2019 16:11:31 +0100 From: Bernd Walter <ticso@cicely7.cicely.de> To: Peter Jeremy <peter@rulingia.com> Cc: John F Carr <jfc@mit.edu>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: 64 bit ARM systems with more than four cores Message-ID: <20191202151131.GJ95260@cicely7.cicely.de> In-Reply-To: <20191202021717.GA70723@server.rulingia.com> References: <94BC4785-B16E-43B2-B222-3D3C8C5DEB50@exchange.mit.edu> <20191202021717.GA70723@server.rulingia.com>
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On Mon, Dec 02, 2019 at 01:17:17PM +1100, Peter Jeremy wrote: > On 2019-Dec-01 21:37:53 +0000, John F Carr <jfc@mit.edu> wrote: > >Two RK3399 based systems, 2 A-72 + 4 A-53: RockPro64 (http://www.pine64.com/) > >and ROCK Pi 4 (http://radxa.com). I can't use the RockPro64 due to the > >1.5 MBps serial port. Apparently it works or almost works with some special > >handling if your serial interface can count to 1,500,000. > > I can't help with the >4 cores bit but the 1.5Mbps serial link shouldn't be > a problem. I have a Rock64 connected to a FT232R clone (something like > https://www.aliexpress.com/item/32680591167.html) and don't have any problems. > (I had to patch ports/comms/conserver-com to support 1.5Mbps but everything > else "just worked"). I still can't get my RockPro64 to boot though. -- B.Walter <bernd@bwct.de> http://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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