From owner-freebsd-arm@freebsd.org Wed Nov 23 10:46:25 2016 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 44EF9C4FE78 for ; Wed, 23 Nov 2016 10:46:25 +0000 (UTC) (envelope-from John.Kitz@xs4all.nl) Received: from lb2-smtp-cloud3.xs4all.net (lb2-smtp-cloud3.xs4all.net [194.109.24.26]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (Client CN "*.xs4all.nl", Issuer "GlobalSign Domain Validation CA - SHA256 - G2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id DE1CB18C for ; Wed, 23 Nov 2016 10:46:24 +0000 (UTC) (envelope-from John.Kitz@xs4all.nl) Received: from picard ([82.95.89.208]) by smtp-cloud3.xs4all.net with ESMTP id BNl81u0064VixDu01Nl9ah; Wed, 23 Nov 2016 11:45:10 +0100 Reply-To: From: "John W. Kitz" To: "'freebsd-arm'" Subject: How do U-boot and SPL compare to an IML and an IPL on a mainframe? Date: Wed, 23 Nov 2016 11:45:11 +0100 Message-ID: <000501d24576$ac4339b0$04c9ad10$@Kitz@xs4all.nl> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AdJFdqqKbvQn1B0SSF+1OH69NPhU7A== Content-Language: en-us X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Nov 2016 10:46:25 -0000 Hi, While I'm waiting for the delivery of my first ARM based board, I was wondering if someone would be kind enough to provide a brief explanation (or a link to one) of how U-boot and SPL (and related software) in de UNIX world, required in the process of starting up some systems, compare to an Initial Microcode Load (IML) and an Initial Program Load (IPL) in the world of mainframes. In others words am I correct in assuming that U-boot more or less does what an IML does and that SPL more or less does what an IPL does? Thanks and regards, Jk.