From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.professional-internet.de ([213.69.77.2] helo=hermes.professional-internet.de) by canuck.infradead.org with esmtp (Exim 4.52 #1 (Red Hat Linux)) id 1DqoXB-0005m8-2i for linux-mtd@lists.infradead.org; Fri, 08 Jul 2005 04:48:35 -0400 From: Ruediger Haertel To: tglx@linutronix.de Date: Fri, 8 Jul 2005 10:48:17 +0200 References: <200507061745.18226.hae@port.de> <200507071532.17991.hae@port.de> <200507071704.19393.hae@port.de> In-Reply-To: <200507071704.19393.hae@port.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200507081048.18115.hae@port.de> Cc: linux-mtd@lists.infradead.org Subject: Re: MTD/ DoC Millenium Plus - Failure in flash detection List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > > > > > > Is this nanddump from latest MTD-CVS ? > > > > No. I use the one of the uClinux-dist-20041215. I'll give the one > > from mtd-cvs a try. Should I use realy the latest snapshot or the > > one I am using from date 2005.03.03. > > Now I used the nanddump from mtd-cvs 2005-03-03. The same result. It > reads oobsize and oobblock as 0. > > I printed the values of the mtd structure during probing and they > are: oob size: 16, oob block: 512 > > Seems ok. So I guess my device file is not correct. I am > using /dev/mtd5,c,90,9. > Stupid me. Of course it was the wrong device file. MTD Devices have an even minor number (mtd->index*2). The odd minor (mtd->index* 2+1) number is used for readonly device files. Now I use the device file /dev/mtd5,c,90,10. Now I get output from nanddump. But I cannot see the file contents that I wrote to the DoC. testfile: "0123456789ABCDEF" /> nandwrite -p /dev/mtd5 /mnt/testfile MTD_open MTD_ioctl MTD_ioctl Writing data to block 0 MTD_ioctl Bad block at 0, 1 block(s) from 0 willM be skipped Writing dataT to block 4000 D_ioctl MTD_write MTD_close Seems to have worked. However nanddump (I dumped the complete 16 MB) does not show the file contents on the DoC. Do I have to format the DoC or do any other preparation? I thought that was only necessary with the "old" driver. This is also my next step. Preparing for a filesystem. I think I have to format it with the ntfl_format tool and then mkfs.jff2. Right? -- Ruediger Haertel