Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756674AbaDHKs5 (ORCPT ); Tue, 8 Apr 2014 06:48:57 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:43969 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756605AbaDHKsy (ORCPT ); Tue, 8 Apr 2014 06:48:54 -0400 Date: Tue, 8 Apr 2014 11:48:39 +0100 From: Mark Rutland To: "tthayer@altera.com" Cc: "robherring2@gmail.com" , "dougthompson@xmission.com" , "grant.likely@linaro.org" , Pawel Moll , "ijc+devicetree@hellion.org.uk" , "galak@codeaurora.org" , "rob@landley.net" , "linux@arm.linux.org.uk" , "dinguyen@altera.com" , "devicetree@vger.kernel.org" , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH 1/3] dts: socfpga: Add bindings for Altera SoC SDRAM controller Message-ID: <20140408104839.GB11876@e106331-lin.cambridge.arm.com> References: <1396907649-20212-1-git-send-email-tthayer@altera.com> <1396907649-20212-2-git-send-email-tthayer@altera.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1396907649-20212-2-git-send-email-tthayer@altera.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 07, 2014 at 10:54:07PM +0100, tthayer@altera.com wrote: > From: Thor Thayer > > Addition of the Altera SDRAM controller bindings and device > tree changes to the Altera SoC project. > > Signed-off-by: Thor Thayer > To: Rob Herring > To: Pawel Moll > To: Mark Rutland > To: Ian Campbell > To: Kumar Gala > To: Rob Landley > To: Russell King > To: Dinh Nguyen > Cc: devicetree@vger.kernel.org > Cc: linux-doc@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > --- > .../bindings/arm/altera/socfpga-sdram.txt | 14 ++++++++++++++ > arch/arm/boot/dts/socfpga.dtsi | 5 +++++ > 2 files changed, 19 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/altera/socfpga-sdram.txt > > diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram.txt > new file mode 100644 > index 0000000..525cb76 > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram.txt > @@ -0,0 +1,14 @@ > +Altera SOCFPGA SDRAM Controller > + > +Required properties: > +- compatible : "altr,sdr-ctl", "syscon"; > + Note that syscon is invoked for this device to support the FPGA > + bridge driver, EDAC driver and other devices that share the > + registers. Is the SDRAM controller really a bag of bits that necessitates the use of syscon? Or are the "other devices" just sub-components of the SDRAM controller? If they are, just describe the SDRAM controller and related interrupts as a single node, and only use the EDAC portion in the Linux driver. Cheers, Mark. > +- reg : Should contain 1 register ranges(address and length) > + > +Example: > + sdrctl@ffc25000 { > + compatible = "altr,sdr-ctl", "syscon"; > + reg = <0xffc25000 0x1000>; > + }; > diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi > index df43702..6ce912e 100644 > --- a/arch/arm/boot/dts/socfpga.dtsi > +++ b/arch/arm/boot/dts/socfpga.dtsi > @@ -676,6 +676,11 @@ > clocks = <&l4_sp_clk>; > }; > > + sdrctl@ffc25000 { > + compatible = "altr,sdr-ctl", "syscon"; > + reg = <0xffc25000 0x1000>; > + }; > + > rstmgr@ffd05000 { > compatible = "altr,rst-mgr"; > reg = <0xffd05000 0x1000>; > -- > 1.7.9.5 > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/