On Fri, Mar 28, 2014 at 04:39:00PM +0800, Huang Shijie wrote: > 于 2014年03月28日 16:16, Lothar Waßmann 写道: > >Still there is no need for the Linux NAND driver to be able to read or > >write partitions in a format that the Boot ROM can understand. Thus it > If you do not use the NAND boot, there really no need to do so. > > Since you need the NAND boot, we should enable the swapping for imx28. > >is perfectly legal to allow disregarding the BB marks and solely rely on > >a flash based BBT. > > > The BB mark is in the page 0 of a NAND block. But the swapping can > occur in _each_ page of > a NAND block, _NOT_ only the page 0. > > I think you are confusing at these two things. I think you are confusing two things. If Lothar: - disables swapping of BB marks in the FCB the ROM won't swap bytes. - writes data without swapping - Uses a DBBT for telling the ROM code where bad blocks are - uses a Flash BBT for mtd Then everything should work just fine. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
