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Date:      Tue, 30 Jan 2018 08:31:14 +0000
From:      "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To:        Oleksandr Tymoshenko <gonzo@bluezbox.com>
Cc:        Emmanuel Vadot <manu@bidouilliste.com>, Warner Losh <imp@bsdimp.com>, John Baldwin <jhb@freebsd.org>, Ravi Pokala <rpokala@mac.com>, src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org, owner-src-committers@freebsd.org
Subject:   Re: svn commit: r328257 - in head/sys: arm/broadcom/bcm2835 dts/arm modules
Message-ID:  <90452.1517301074@critter.freebsd.dk>
In-Reply-To: <20180130025048.GA76676@bluezbox.com>
References:  <CANCZdfrh0NHq7cbkq_genEdzo%2BB3G4TTAcEzpgh11sr%2B82e9aw@mail.gmail.com> <93949.1516733748@critter.freebsd.dk> <20180127210801.37b8001125dd0a2c92372f98@bidouilliste.com> <72042.1517094867@critter.freebsd.dk> <8d8ae9d10058fd72ce3ec467181c9f22@megadrive.org> <13025.1517179897@critter.freebsd.dk> <20180129063950.GA59901@bluezbox.com> <32793.1517221534@critter.freebsd.dk> <20180129132736.GA66330@bluezbox.com> <33452.1517233531@critter.freebsd.dk> <20180130025048.GA76676@bluezbox.com>

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In message <20180130025048.GA76676@bluezbox.com>, Oleksandr Tymoshenko writes:

>> You seem to have skipped the bit about "without reboot" ?
>
>No I haven't. config.txt is parsed by VC firmware on boot time
>and pwm.dtbo is applied even before boot loader kicks in. When
>kernel starts pwm node has pinctl information ready and status
>property is set to "okay". So if you download next available image,
>flash and boot it and run kldload bcm2835_pwm it will give you
>working PWM device out of the box without reboot.

But only if you add pwm.dtbo to config.txt and reboot, because
I see nothing indicating that we will put it there in the
release images we (may start to) produce ?

>I don't think we have designated reference platform at the moment,
>but it's a good idea to have one. Pi's platform is too weird to
>be reference. TI's AM335x or iMX would be a good candidate I think
>They are complex enough to illustrate all the concepts yet not super
>complex.

I fully agree that RPi should *not* be our reference platform.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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