From mboxrd@z Thu Jan 1 00:00:00 1970 From: llandre Date: Tue, 09 May 2006 17:29:49 +0200 Subject: [U-Boot-Users] CompactFlash TrueIDE with 1 chip select In-Reply-To: <1147187629.16780.48.camel@saruman.qstreams.net> References: <1147187629.16780.48.camel@saruman.qstreams.net> Message-ID: <4460B56D.2010204@dave-tech.it> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de This AN provides some useful information http://www.toshiba.com/taec/components/ApplNote/TSB_CF-IBM_PPC405GP_030523.pdf Regards, llandre DAVE Electronics System House - R&D Department web: http://www.dave-tech.it email: r&d2 at dave-tech.it > Hello, > > I'm planning on using Compact Flash on an MPC8349 in True IDE mode, but > only have one chip select line available. The local bus on this chip is > for all intents and purposes the same as all of the 8xx/82xx chips that > came before it. The plan is do some address decoding magic in a CPLD to > provide two indirect chip selects. > > Browsing through the U-boot code and some other boards using True IDE, I > think this should work without much drama. Does anyone have comments or > suggestions? > > thanks, > Ben