Date: Tue, 28 Oct 2014 16:53:47 -0500
From: atull <atull@opensource.altera.com>
To: Steffen Trumtrar <s.trumtrar@pengutronix.de>
CC: <jgunthorpe@obsidianresearch.com>, <hpa@zytor.com>, <monstr@monstr.eu>,
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        <iws@ovro.caltech.edu>, <linux-doc@vger.kernel.org>, <pavel@denx.de>,
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        <balbi@ti.com>, <m.chehab@samsung.com>, <davidb@codeaurora.org>,
        <rob@landley.net>, <davem@davemloft.net>, <cesarb@cesarb.net>,
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        <yvanderv@opensource.altera.com>
Subject: Re: [PATCH v2 2/3] ARM: dts: socfpga: fpga bridges bindings docs
In-Reply-To: <alpine.DEB.2.02.1410281601570.11910@atx-linux-37>
Message-ID: <alpine.DEB.2.02.1410281651490.11910@atx-linux-37>
References: <1414108267-22058-1-git-send-email-atull@opensource.altera.com> <1414108267-22058-3-git-send-email-atull@opensource.altera.com> <20141024070042.GL10262@pengutronix.de> <alpine.DEB.2.02.1410281601570.11910@atx-linux-37>
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Sender: linux-kernel-owner@vger.kernel.org

On Tue, 28 Oct 2014, atull wrote:

> On Fri, 24 Oct 2014, Steffen Trumtrar wrote:

> > 
> > > + - init-val       : 0 if driver should disable bridge at startup
> > > +                    1 if driver should enable bridge at startup
> > > +                    driver leaves bridge in current state if property not
> > > +                    specified.
> > > +
> > 
> > Configuration in the DT? Really?

The FPGA can be programmed by several different methods (eeprom, jtag,
preloader, Linux).  The guiding principle is: whoever programmed the
FPGA should release the bridge.  At one point, we thought 'init-val'
would be needed, but I think it can be taken out and we won't miss it.

Alan
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