From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric BENARD Date: Fri, 17 Oct 2008 11:52:43 +0200 Subject: [U-Boot] Incorrect Chip ID for Micrel Nand Flash on AT91SAM9260 board In-Reply-To: <179373d80810170249y4aa91406u4eab2af9d28f5f4f@mail.gmail.com> References: <179373d80810170249y4aa91406u4eab2af9d28f5f4f@mail.gmail.com> Message-ID: <48F8606B.1020005@free.fr> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Kevin, Kevin Greer a ?crit : > I am working with a custom board based on the Atmel at91sam9260 arm > processor with a Micrel 2 Gb Nand flash chip (mt29f2g08aadwp). However, > when u-boot starts it reports the wrong Chip ID (0x01 instead of 0xda) and > then I start getting Bad eraseblock messages during the rest of the boot > process. The strange thing is that when I debug the board using a JTAG it > gets the correct Chip ID and boots properly. I am hoping that someone else > might have run into a similar problem, or might have an idea of how to > proceed. > try sending a reset command to the nand before getting the ID, this should solve the problem. Eric