From owner-freebsd-embedded@FreeBSD.ORG Sun Mar 14 20:40:05 2010 Return-Path: Delivered-To: embedded@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 507171065670 for ; Sun, 14 Mar 2010 20:40:05 +0000 (UTC) (envelope-from loos.br@gmail.com) Received: from mail-gw0-f54.google.com (mail-gw0-f54.google.com [74.125.83.54]) by mx1.freebsd.org (Postfix) with ESMTP id F31B08FC12 for ; Sun, 14 Mar 2010 20:40:04 +0000 (UTC) Received: by gwj15 with SMTP id 15so1341557gwj.13 for ; Sun, 14 Mar 2010 13:40:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:subject:mime-version :content-type:from:in-reply-to:date:cc:content-transfer-encoding :message-id:references:to:x-mailer; bh=mxV7cQD7lUO82grd1OxW3p44/V4hM89k/vGEXIjdiK0=; b=Mn7VFG9lCOpnCQgZ+qTjxeRuqR4iEbUDqip0KGU5qIlURpXWkhCbpaT+GNGwrWHt2v pnxgzVcFYm+lGFZgrbcjQB+TxuCCOpskwCU9Kw8Ct/9kMzcr4lkeCYjoUsTbETq7ann6 +uDRGNVQq6SncP72mgzhrQRwABkFFNoIsdxLE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; b=EwuTW8XXar0I0mc4Ot8+5U1DYomDxIglAWCNVvgzAQO8mnzU1Ep6QV/q+hUQJII5U+ NTJ3TxTeKeDGi8yQO4klcbBvhvckCXyw71McK14OEUjL5I0jWjtgc7dYQf+Fc+IieTFw A966w0Zg6MoGOwBNid3luTQpWbKMv9chZMp6o= Received: by 10.101.165.15 with SMTP id s15mr884742ano.189.1268599204228; Sun, 14 Mar 2010 13:40:04 -0700 (PDT) Received: from [192.168.0.86] ([187.39.15.241]) by mx.google.com with ESMTPS id 34sm1175300yxf.36.2010.03.14.13.40.02 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sun, 14 Mar 2010 13:40:03 -0700 (PDT) Mime-Version: 1.0 (Apple Message framework v1077) Content-Type: text/plain; charset=us-ascii From: Luiz Otavio O Souza In-Reply-To: <20100314.120453.737751539143972474.imp@bsdimp.com> Date: Sun, 14 Mar 2010 17:40:01 -0300 Content-Transfer-Encoding: quoted-printable Message-Id: References: <0AE04EFA-A3EB-4939-BD81-607C00355B67@semihalf.com> <20100314165825.121d346b@fubar.geek.nz> <20100314.120453.737751539143972474.imp@bsdimp.com> To: "M. Warner Losh" X-Mailer: Apple Mail (2.1077) Cc: gjb@semihalf.com, embedded@freebsd.org, andrew@fubar.geek.nz Subject: Re: NAND Flash Framework for review X-BeenThere: freebsd-embedded@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Dedicated and Embedded Systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Mar 2010 20:40:05 -0000 On Mar 14, 2010, at 3:04 PM, M. Warner Losh wrote: > Has anybody also looked at the work I did for serial flash parts on > the at91rm9200? How does that compare with this effort here (other > than I supported only one chip size)? Is that spi-connected memory > NAND? >=20 > Warner Warner, If i've picked the right driver on tree (dev/flash/at45d.c) and the = right data sheet it is not NAND, it is DataFlash and looks like Atmel = specific. The main difference here is that you don't need to worry about bad = blocks on dataflash (the same as flash). Luiz