Date: Tue, 24 Feb 2015 00:51:29 -0500 From: Kurt Lidl <lidl@pix.net> To: freebsd-mips@freebsd.org Subject: ERL second serial port? Message-ID: <20150224055129.GA78276@hydra.pix.net>
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Greetings all. I noticed on my ERL, which has a fairly recent build of HEAD on it (r279016M), that a two serial ports are probed during the kernel's autoconfiguration. uart1: <Octeon-16550 channel 1> on obio0 uart1: console (115200,n,8,1) uart1: fast interrupt uart0: <Octeon-16550 channel 0> on obio0 uart0: console (115200,n,8,1) uart0: fast interrupt Obviously, one of these is the serial port console of the machine. I was wondering if the second serial port was semi-easily accessible. Examining the motherboard of the ERL closely, there's a place where some header pins could be soldered in - there are just empty through-holes on the PCB. Does anybody know what pins from what devices are available on these holes? I'd like to be able to access the second serial port on the machine, and it seems not unlikely that a few of the uart's signals might show up on the headers that could be soldered into the holes. Thanks for any information. -Kurt
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