From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from az33egw02.freescale.net (az33egw02.freescale.net [192.88.158.103]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "az33egw02.freescale.net", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 8766EDDDCA for ; Wed, 3 Dec 2008 18:43:07 +1100 (EST) Date: Tue, 2 Dec 2008 23:40:57 -0800 (PST) From: Trent Piepho To: Sean MacLennan Subject: Re: [U-Boot] NAND only (no NOR) In-Reply-To: <20081203013818.016619b6@lappy.seanm.ca> Message-ID: References: <4934F7FC.2030105@aimvalley.nl> <20081202215033.501f3403@lappy.seanm.ca> <200812030648.57618.sr@denx.de> <20081203013818.016619b6@lappy.seanm.ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: u-boot@lists.denx.de, Stefan Roese , Norbert van Bolhuis , linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 3 Dec 2008, Sean MacLennan wrote: >> Yes, I would recommend to do it this way if possible. A small NOR for >> U-Boot and environment and everything else in NAND. This makes things >> much easier. But I understand that this is sometimes a problem with >> space (2 FLASH chips) and costs. > > Mainly cost. We didn't want to pay for a second chip. I think for NAND the latches necessary to de-multiplex the localbus aren't necessary like they are for NOR? On our board the latches might even take more space than the flash chip.