From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schweigstill Date: Thu, 01 Feb 2007 13:40:18 +0100 Subject: [U-Boot-Users] Atmel DataFlash hooks. In-Reply-To: <009101c7437a$0d0ee6e0$01c4af0a@atmel.com> References: <528646bc0701271419l8069e56nb06bb328cf85b8b7@mail.gmail.com><20070128150136.8B8F8352629@atlas.denx.de> <528646bc0701281833i5d595d83ua436f75c8b29e76@mail.gmail.com> <009101c7437a$0d0ee6e0$01c4af0a@atmel.com> Message-ID: <45C1DFB2.7090506@schweigstill.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello! Ulf Samuelsson schrieb: > I dont see why you should need to call any "open" routine > since the dataflash is active before u-boot has even started > and does not need any initialization sequence. There could be further initialization of Dataflash devices at later time: - Dataflash card may be plugged into the board when U-Boot is already running, e.g. for firmware updates. - A Dataflash can be placed on an extension board which will be powered up later during system start-up. This could also require a Dataflash to be initialized later. Probably such open() function could check if the extension board is present and powered. With best regards Andreas Schweigstill -- Dipl.-Phys. Andreas Schweigstill Schweigstill IT | Embedded Systems Schauenburgerstra?e 116, D-24118 Kiel, Germany Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436 Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/