RPI3B+ cpu frequency

[Bernd Walter]

On Wed, Jul 04, 2018 at 12:49:16PM +0300, Greg V wrote:
> 
> 
> On Wed, Jul 4, 2018 at 7:40 AM, Stefan Parvu <sparvu at 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.

Interesting, didn't know it defaults to the llower freq.
On a normal 3 model (it was running at 600):
dev.cpu.0.freq_levels: 1200/-1 600/-1
dev.cpu.0.freq: 1200
On another normal 3 model (it only has 1200):
dev.cpu.0.freq_levels: 1200/-1
dev.cpu.0.freq: 1200

The strange thing about this difference is that the second is running
a cloned image, so theoretically it should also offer 600MHz.
Maybe the boards were from a different batch.
The second without 600MHz is remote, so I can't do any visual inspections.

-- 
B.Walter <bernd at bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.