From owner-freebsd-arm@freebsd.org  Wed Jul  4 09:49:32 2018
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Date: Wed, 04 Jul 2018 12:49:16 +0300
From: Greg V <greg@unrelenting.technology>
Subject: Re: RPI3B+ cpu frequency
To: Stefan Parvu <sparvu@kronometrix.org>
Cc: freebsd-arm@freebsd.org
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On Wed, Jul 4, 2018 at 7:40 AM, Stefan Parvu <sparvu@kronometrix.org> 
wrote:
> Hi,
> 
> I understood the last RPI3B+ ships with a 1.4GHz 64-bit cpu. Right ? 
> Booting FreeBSD 12.0
> current shows that I have access only to 600MHz. A bit confused, 
> since this was happening as
> well on older models, if Im not wrong: do I need to turn on the Turbo 
> mode to get access to
> the full speed of the CPU or what ?
> 
> Why FreeBSD does not boot and by default use the CPU at 1.4GHz ?

Hi! You should run the 'powerd' service to make it boost to max 
frequency under load.

Or you can force_turbo in config.txt to make the Pi always run at full 
speed (and waste power).