From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anatolij Gustschin Subject: Re: [PATCH v2 2/2] fpga manager: Add Xilinx slave serial SPI driver Date: Tue, 21 Feb 2017 21:24:37 +0100 Message-ID: <20170221212437.2911d74e@crub> References: <1487600724-17607-1-git-send-email-agust@denx.de> <1487600724-17607-3-git-send-email-agust@denx.de> <2d412ae7-4163-9943-6d98-2d6387df7789@xilinx.com> <20170221152444.34b5d9f4@crub> <19e0b5d1-bbf6-25ac-2698-6074ebafcf05@xilinx.com> <20170221161723.358975f7@crub> <20170221163907.75ba4330@crub> <3a30638c-68f6-8c2b-95b7-c8c700fe4867@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <3a30638c-68f6-8c2b-95b7-c8c700fe4867-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Michal Simek Cc: linux-fpga-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Alan Tull , Moritz Fischer , Rob Herring , Mark Rutland List-Id: devicetree@vger.kernel.org On Tue, 21 Feb 2017 19:53:40 +0100 Michal Simek michal.simek-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org wrote: ... >There is one thing I have checked ml505 - old virtex 5 board which has >this interface. >http://www-inst.eecs.berkeley.edu/~cs150/fa13/resources/ml50x_schematics.pdf > >And I was chatting with one board guy and I think that done pin should >be optional not required because not all boards export it. > >Then there is a question how to find out that programming was done and >that's something what I don't know. But will try to find out if you can >send any sequence over spi to find it out instead of gpio done pin. maybe the boards without DONE pin use INIT_B pin with external pull-up for CRC error reporting after configuration? Not sure if this is a reliable way to ensure the configuration has completed. Thanks, Anatolij -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html