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To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: Raspberry Pi Clock Frequency
In-reply-to: Your message of "Sun, 02 Mar 2014 21:53:04 PST."
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Comments: In-reply-to Adrian Chadd <adrian@freebsd.org>
 message dated "Sun, 02 Mar 2014 21:53:04 -0800."
Date: Sun, 02 Mar 2014 22:10:22 -0800
From: Bakul Shah <bakul@bitblocks.com>
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Cc: Jordan Starcher <jstarcher@gmail.com>,
 "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>,
 Ian Lepore <ian@freebsd.org>
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On Sun, 02 Mar 2014 21:53:04 PST Adrian Chadd <adrian@freebsd.org> wrote:
> I believe it's something that is done in the bootloader config, not by
> Linux itself.

You can set freq in config.txt as

arm_freq=<freq>

> On 2 March 2014 20:05, Ian Lepore <ian@freebsd.org> wrote:
> >
> > If there's a way to change the cpu frequency, it's not in the scanty
> > little doc I've got about that processor.  If it can be done, the how-to
> > can probably be found in the linux source, but I don't have time to work
> > on it.

See https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface