From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1Kgi2j-0002Nu-7J for linux-mtd@lists.infradead.org; Fri, 19 Sep 2008 15:37:13 +0000 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1Kgi2f-0004NS-Dw for linux-mtd@lists.infradead.org; Fri, 19 Sep 2008 15:37:09 +0000 Received: from gw-c.sigma-chemnitz.de ([62.153.82.26]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 19 Sep 2008 15:37:09 +0000 Received: from enrico.scholz by gw-c.sigma-chemnitz.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 19 Sep 2008 15:37:09 +0000 To: linux-mtd@lists.infradead.org From: Enrico Scholz Subject: Re: Problem with Hynix HY27UF081G2A 1Gb NAND flash? Date: Fri, 19 Sep 2008 17:28:04 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: news List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Ricard Wanderlof writes: > I'm testing the above mentioned NAND flash chip in a design > which has previously used the corresponding 1Gb parts from > Samsung and Numonyx (ST) without problems. However, with the > Hynix chip, mtd won't even read the ID code, it's just as if > the chip wasn't there (it fails with Some Hynix NAND chips seem to have problems with bus arbitration; e.g. they continue to shift out data when chipselect is deasserted during a operation (e.g. because ethernet controller was accessed in this time). We saw this with HY27UG088G5M on PXA320 and read-page operations. Enrico