> -----Original Message----- > From: Alexander Aring [mailto:alex.aring@xxxxxxxxx] > Sent: vrijdag 14 juni 2013 9:02 > To: Vanhauwaert Wouter > Cc: barebox@xxxxxxxxxxxxxxxxxxx > Subject: Re: NAND + imx53, BBT/timings? > > Hi, > > On Thu, Jun 13, 2013 at 09:09:11AM +0200, Vanhauwaert Wouter wrote: > > Hi all, > > > > I'm working on a custom design which has an imx53 and a 1GB NAND flash > (Samsung k9k8g08u0d) via an 8 bit bus. > > So I added this imx_nand_platform_data structure with a .width=1, .hw_ecc=1 > and .flash_bbt=1. > > The flash gets detected at startup (also loads the bootloader from it). > > > > nand: Manufacturer ID: 0xec, Chip ID: 0xd3 (Samsung NAND 1GiB 3,3V > > 8-bit), page size 2048, OOB size:64 but then > > nand: Bad block table not found for chip 0 > > nand: Bad block table not found for chip 0 > > > > etc > > > > and when I do imx_nand_bbm, I get: > > Bad eraseblock 0 at 0x00000000 > > Bad eraseblock 1 at 0x00020000 > > And for the rest UnCorrectable RS-ECC errors > > > > This is a barenew flash, so I suppose I should find a factory bad block table? > No, this is a another bad block table. [1] You need to generate the bbt. > Factories only marks block as bad(with an mark pattern). > > > I'm using the barebox 2013.05.1 stable release from git > > > > You can "try" to generate a bbt when you generate a nand bad block aware > device, nand command "nand -a", then run "nandtest -t -m /dev/nand#.bb" to fill > this bbt with "current" badblocks. > > I don't know if this generates a bbt for you. But give it a try, I think it should do :/ > > [1] http://www.linux-mtd.infradead.org/tech/mtdnand/x144.html No, that did not what I expected In the meantime, I merged with v2013.10 but still have these issues... Imx_nand_bbm gives me: UnCorrectable RS-ECC Error UnCorrectable RS-ECC Error UnCorrectable RS-ECC Error UnCorrectable RS-ECC Error And erase /dev/nand0 gives me: erase: I/O error What is happening? _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
