From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965655AbcAURWt (ORCPT ); Thu, 21 Jan 2016 12:22:49 -0500 Received: from mail-bn1bon0073.outbound.protection.outlook.com ([157.56.111.73]:35392 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933293AbcAURWo (ORCPT ); Thu, 21 Jan 2016 12:22:44 -0500 Authentication-Results: spf=fail (sender IP is 66.35.236.227) smtp.mailfrom=opensource.altera.com; lwn.net; dkim=pass (signature was verified) header.d=altera.onmicrosoft.com;lwn.net; dmarc=none action=none header.from=opensource.altera.com; Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=atull@opensource.altera.com; Date: Thu, 21 Jan 2016 11:21:08 -0600 From: atull X-X-Sender: atull@linuxheads99 To: Moritz Fischer CC: Rob Herring , Josh Cartwright , Greg KH , Michal Simek , Michal Simek , Pawel Moll , Mark Rutland , Ian Campbell , "Kumar Gala" , Jonathan Corbet , "Linux Kernel Mailing List" , Devicetree List , , Pantelis Antoniou , Alan Tull , "dinguyen@opensource.altera.com" Subject: Re: [PATCH v15 1/6] fpga: add bindings document for fpga area and fpga bus In-Reply-To: Message-ID: References: <1453317867-10422-1-git-send-email-atull@opensource.altera.com> <1453317867-10422-2-git-send-email-atull@opensource.altera.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: text/plain; 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The fpga > image is loaded just fine. > > in dts: > > fpga_bus@0 { > compatible = "altr,fpga-bus", "simple-bus"; > #address-cells = <1>; > #size-cells = <1>; > ranges; > > fpga_mgr0: devcfg@f8007000 { > compatible = "xlnx,zynq-devcfg-1.0", > "simple-bus"; > reg = <0xf8007000 0x100>; > interrupt-parent = <&intc>; > interrupts = <0 8 4>; > clocks = <&clkc 12>; > clock-names = "ref_clk"; > syscon = <&slcr>; > > #address-cells = <1>; > #size-cells = <1>; > ranges; > }; > }; > > overlay: > > fragment@0 { > target-path = "/amba/devcfg@f8007000"; Hi Moritz, target-path = "/amba/fpga_bus@0/devcfg@f8007000"; should work, I hope. If it doesn't, turn on debugging for fpga-area.c and maybe add more printk's in the probe function. Hopefully you get to the fpga-area's probe function and can see which step is bailing out. If you get as far as of_platform_populate, but your axidma's probe isn't getting called then you could add some debug to drivers/of/platform.c to see why it's not getting populated. Alan > __overlay__ { > #address-cells = <1>; > #size-cells = <1>; > > area@0 { > compatible = "fpga-area"; > #address-cells = <1>; > #size-cells = <1>; > ranges; > > firmware-name = "dmac.bin"; > > axi_dma0: axidma@40000000 { > compatible = "xlnx,axi-dma-1.00.a"; > reg = <0x40000000 0x10000>; > #dma-cells = <1>; > xlnx,include-sg = <1>; > xlnx,include-dre = <1>; > status = "okay"; > [...] > }; > }; > }; > }; > > > I also stumbled across those while looking through the examples: > > > +Example: > > + > > +/dts-v1/; > > +/plugin/; > > /dts-v1/ / plugin/; the above syntax is deprecated: > > Warning (deprecated_plugin_syntax): Use '/dts-v1/ /plugin/'; syntax. > /dts-v1/; /plugin/; is going to be removed in next versions > > > +Device Tree Example: Partial Reconfiguration with no Bridges > > +============================================================ > > + > > +Live Device Tree contains: > > + fpgamgr@ffd03000 { > > + compatible = "altr,socfpga-a10-fpga-mgr", "simple-bus"; > > + clocks = <&l4_mp_clk>; > > + resets = <&rst FPGAMGR_RESET>; > > + reset-names = "fpgamgr"; > > + reg = <0xffd03000 0x1000 > > + 0xffcfe400 0x1000>; > > + > > + #address-cells = <0x1>; > > + #size-cells = <0x1>; > > + ranges; > > + }; > > + > > +DT Overlay contains: > > +/dts-v1/; > > +/plugin/; Yes, thanks! I will adjust the documentation to reflect that. Alan > > see above > > Cheers, > > Moritz >