Date: Tue, 09 Apr 2019 18:44:19 -0600 From: Ian Lepore <ian@freebsd.org> To: ticso@cicely.de, Peter Jeremy <peter@rulingia.com> Cc: freebsd-arm@freebsd.org, Bernd Walter <ticso@cicely7.cicely.de> Subject: Re: no dev.cpu on RPI-B Message-ID: <9f6e80c5a31938db52805b2012ca8a9820660991.camel@freebsd.org> In-Reply-To: <20190410003508.GL69855@cicely7.cicely.de> References: <20190409223917.GK69855@cicely7.cicely.de> <20190409235929.GA8974@server.rulingia.com> <20190410003508.GL69855@cicely7.cicely.de>
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On Wed, 2019-04-10 at 02:35 +0200, Bernd Walter wrote: > On Wed, Apr 10, 2019 at 09:59:29AM +1000, Peter Jeremy wrote: > > On 2019-Apr-10 00:39:18 +0200, Bernd Walter < > > ticso@cicely7.cicely.de> wrote: > > > I was hoping for dev.cpu.0.temperature as it exists on the Pi3. > > > Is something missing in my setup (using 12-RELEASE kernel from > > > image), > > > or is there no support for that? > > > > I ran into this when I switched from the FreeBSD FDT to the default > > Linux FDT. > > The latter is missing the CPU description. The fix is to create > > your own > > FDT overlay and get the loader to load it. There's a similar > > problem with the > > SPI controller. > > Thank you very much. > That makes sense, didn't thought about FDT because it works on a Pi3 > with the same 12.0-RELEASE. > I'm already using overlays on those systems for SPI, my own APA102 > LED driver > and DS18B20 sensors. > It is for an LED matrix running 24 RPI1 with 800 LEDs each. > The systems are nfsroot, but I think the dtso are loaded from the > micro-SD > cards :-( > Well - I guess I setup a bootscript on the NFS server to update the > data on > the cards. > I think that's true if you use uboot or the config.txt file to load the overlays. If you set fdt_overlays="file1.dtbo,file2.dtbo,etc" in /boot/loader.conf the overlays should come from /boot/dtb/overlays in the same /boot folder. -- Ian
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