From mboxrd@z Thu Jan 1 00:00:00 1970 From: atull Subject: Re: [PATCH v19 03/12] add bindings document for altera freeze bridge Date: Mon, 10 Oct 2016 13:45:26 -0500 Message-ID: References: <20160928182200.15800-1-atull@opensource.altera.com> <20160928182200.15800-4-atull@opensource.altera.com> <20161008204946.GC11595@rob-hp-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20161008204946.GC11595@rob-hp-laptop> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Rob Herring Cc: Mark Rutland , Moritz Fischer , delicious.quinoa@gmail.com, Ian Campbell , Greg Kroah-Hartman , Josh Cartwright , Michal Simek , linux-kernel@vger.kernel.org, Cyril Chemparathy , devicetree@vger.kernel.org, Dinh Nguyen , Jon Masters , Matthew Gerlach , Frank Rowand , Walter Goossens , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org On Sat, 8 Oct 2016, Rob Herring wrote: > On Wed, Sep 28, 2016 at 01:21:51PM -0500, Alan Tull wrote: > > Add bindings document for the Altera Freeze Bridge. A Freeze > > Bridge is used to gate traffic to/from a region of a FPGA > > such that that region can be reprogrammed. The Freeze Bridge > > exist in FPGA fabric that is not currently being reconfigured. > > > > Signed-off-by: Alan Tull > > Signed-off-by: Matthew Gerlach > > --- > > v19: Added in v19 of patchset, uses fpga image info struct > > --- > > .../bindings/fpga/altera-freeze-bridge.txt | 23 ++++++++++++++++++++++ > > 1 file changed, 23 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt > > > > diff --git a/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt > > new file mode 100644 > > index 0000000..97ecc11 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt > > @@ -0,0 +1,23 @@ > > +Altera Freeze Bridge Controller Driver > > + > > +The Altera Freeze Bridge Controller manages one or more freeze bridges. > > +The controller can freeze/disable the bridges which prevents signal > > +changes from passing through the bridge. The controller can also > > +unfreeze/enable the bridges which allows traffic to pass through the > > +bridge normally. > > + > > +Required properties: > > +- compatible : Should contain "altr,freeze-bridge-controller" > > Only one version of the h/w? The h/w has a version register. Currently the driver reads the reg and exits if rev != 2. Future version support can be keyed off this register. > > > +- regs : base address and size for freeze bridge module > > + > > +Optional properties: > > +- bridge-enable : 0 if driver should disable bridge at startup > > + 1 if driver should enable bridge at startup > > + Default is to leave bridge in current state. > > + > > +Example: > > + freeze_controller@100000450 { > > Underscore... Yes. > > > + compatible = "altr,freeze-bridge-controller"; > > + regs = <0x1000 0x10>; > > + bridge-enable = <0>; > > + }; > > -- > > 2.9.3 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe devicetree" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html >