boot loader serial console speed to 9600

[Ian Lepore]

On Thu, 2018-10-25 at 19:21 +0300, Stefan Parvu wrote:
> > 
> > I would think if you're emitting data to a logger via uart, you
> > would
> > want to disable the serial console completely, so that your data
> > generating application can have exclusive use of the uart to output
> > data.
> btw: how can u do that ?  How can I completely disable the serial
> console
> on FBSD12 ?
> 
> thanks,
> Stefan
> 

Here's an old mail thread describing how to disable the console so that
a gps add-on board would work:

https://lists.freebsd.org/pipermail/freebsd-arm/2017-January/015438.html

That's pretty old, so I'm not sure everything in it still applies, but
I suspect there is still useful info there.

Also, a few months ago we got a new driver for the mini-uart that's in
an RPi3, it uses a separate set of IO pins from the console uart, maybe
that's a viable solution for you? I don't know much about the second
uart, I've just seen people mention it.

-- Ian