From owner-svn-src-head@FreeBSD.ORG Sat Apr 27 23:59:16 2013 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 1C829AB9; Sat, 27 Apr 2013 23:59:16 +0000 (UTC) (envelope-from wkoszek@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id E89FA1FB5; Sat, 27 Apr 2013 23:59:15 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.6/8.14.6) with ESMTP id r3RNxFYA025030; Sat, 27 Apr 2013 23:59:15 GMT (envelope-from wkoszek@svn.freebsd.org) Received: (from wkoszek@localhost) by svn.freebsd.org (8.14.6/8.14.5/Submit) id r3RNxFQM025029; Sat, 27 Apr 2013 23:59:15 GMT (envelope-from wkoszek@svn.freebsd.org) Message-Id: <201304272359.r3RNxFQM025029@svn.freebsd.org> From: "Wojciech A. Koszek" Date: Sat, 27 Apr 2013 23:59:15 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r250001 - head/share/man/man4/man4.arm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Apr 2013 23:59:16 -0000 Author: wkoszek Date: Sat Apr 27 23:59:15 2013 New Revision: 250001 URL: http://svnweb.freebsd.org/changeset/base/250001 Log: Polish devcfg(4) slightly: add \n after the end of every sentence. Modified: head/share/man/man4/man4.arm/devcfg.4 Modified: head/share/man/man4/man4.arm/devcfg.4 ============================================================================== --- head/share/man/man4/man4.arm/devcfg.4 Sat Apr 27 23:36:01 2013 (r250000) +++ head/share/man/man4/man4.arm/devcfg.4 Sat Apr 27 23:59:15 2013 (r250001) @@ -39,19 +39,20 @@ can be used to configure the PL (FPGA) s .Pp On the first write to the character device at file offset 0, the devcfg driver asserts the top-level PL reset signals, disables the PS-PL level shifters, -and clears the PL configuration. Write data is sent to -the PCAP (processor configuration access port). When the PL asserts the -DONE signal, the devcfg driver will enable the level shifters and release -the top-level PL reset signals. +and clears the PL configuration. +Write data is sent to the PCAP (processor configuration access port). +When the PL asserts the DONE signal, the devcfg driver will enable the level +shifters and release the top-level PL reset signals. .Pp -The PL (FPGA) can be configured by writing the bitstream to the -character device like this: +The PL (FPGA) can be configured by writing the bitstream to the character +device like this: .Bd -literal -offset indent cat design.bit.bin > /dev/devcfg .Ed .Pp The file should not be confused with the .bit file output by the FPGA -design tools. It is the binary form of the configuration bitstream. +design tools. +It is the binary form of the configuration bitstream. The Xilinx .Pa promgen tool can do the conversion: @@ -65,15 +66,17 @@ variables: .Bl -tag -width 12 .It Va hw.fpga.pl_done .Pp -This variable always reflects the status of the PL's DONE signal. A 1 -means the PL section has been properly programmed. +This variable always reflects the status of the PL's DONE signal. +A 1 means the PL section has been properly programmed. .It Va hw.fpga.en_level_shifters .Pp This variable controls if the PS-PL level shifters are enabled after the -PL section has been reconfigured. This variable is 1 by default but setting -it to 0 allows the PL section to be programmed with configurations that -don't interface to the PS section of the part. Changing this value has no -effect on the level shifters until the next device reconfiguration. +PL section has been reconfigured. +This variable is 1 by default but setting it to 0 allows the PL section to be +programmed with configurations that don't interface to the PS section of the +part. +Changing this value has no effect on the level shifters until the next device +reconfiguration. .Sh FILES /dev/devcfg Character device for .Nm