linux-kernel - Re: [PATCH 1/5] capemgr: Beaglebone DT overlay based cape manager

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Message-Id: <201301081612.59292.arnd@arndb.de>
Date:	Tue, 8 Jan 2013 16:12:59 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Pantelis Antoniou <panto@...oniou-consulting.com>
Cc:	Lee Jones <lee.jones@...aro.org>, Tony Lindgren <tony@...mide.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>, Jon Loeliger <jdl@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	David Gibson <david@...son.dropbear.id.au>,
	Benoit Cousson <b-cousson@...com>,
	Mitch Bradley <wmb@...mworks.com>,
	Alan Tull <atull@...era.com>,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	linux-omap@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Matt Porter <mporter@...com>, Russ Dill <Russ.Dill@...com>,
	Koen Kooi <koen@...inion.thruhere.net>,
	Joel A Fernandes <agnel.joel@...il.com>,
	Rob Clark <robdclark@...il.com>,
	Jason Kridner <jkridner@...gleboard.org>,
	Matt Ranostay <mranostay@...il.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Guennadi Liakhovetski <g.liakhovetski@....de>
Subject: Re: [PATCH 1/5] capemgr: Beaglebone DT overlay based cape manager

On Tuesday 08 January 2013, Pantelis Antoniou wrote:
> On Jan 8, 2013, at 2:12 PM, Arnd Bergmann wrote:
> 
> > On Tuesday 08 January 2013, Lee Jones wrote:
> >>> If there is not, there is no way to automatically load the overlays; you can always
> >>> use the kernel command line, or have the a user space application to request the loading
> >>> of a specific board's overlay.
> >> 
> >> Unfortunately, there is no way to probe the UIBs. :(
> > 
> > I thought that some of the newer UIBs had it, just not the old ones.
> > As Pantelis says, we could at least detect the ones that have an EEPROM
> > on them, and use a command line option or device tree attribute for the others.
> > 
> >       Arnd
> 
> So I gather the new ones have an eeprom?

I don't remember the details unfortunately. Lee should be the one who can find out.
IIRC there was at least a single integeger number on them.

	Arnd
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