RPI4 clock speeds and serial port

[bob prohaska]

On Thu, Mar 18, 2021 at 12:14:07PM -0700, Mark Millard wrote:
> 
> You are correct that the mini-UART has the dependencies.
> But use of:
> 
> dtoverlay=disable-bt
> 
> avoids use of the mini-UART. The same is true
> of instead using:
> 
> dtoverlay=miniuart-bt
> 
> but, then, Bluetooth suffers the variability.
> (I just do not try to use Bluetooth.)
> 
This clears up my confusion. Bluetooth is of no immediate
use to me, is there any prospect FreeBSD will ever support it?

DB's suggestion to speed-correct the mini-uart seems like a 
good idea unless there are some bad side effects.
 
Thank you!

bob prohaska