Hi, Huang Shijie wrote: > 于 2014年03月20日 17:21, Lothar Waßmann 写道: > > Hi, > > > > Huang Shijie wrote: > >> 于 2014年03月19日 21:23, y@xxxxxxxxxxxxxxxxxxx 写道: > >>> configurable via DT. This is required for the Ka-Ro electronics > >>> platforms. > >>> > >> If you disable the swapping, you will disable the NAND boot in actually. > >> > > No. All our modules do boot from NAND and none of them does the > > swapping. > > > > > It seems the NAND boot runs well by luck. > > The ROM will do the swapping when it reads the BBT table written by the > kobs-ng (or something else?). > This can be disabled by parameter in the FCB (at least according to the i.MX6 reference Manual): |DISBBM 172 4 If 0 ROM will swap BadBlockMarkerByte with | metadata[0] after reading a page using BCH40. | If the value set is 1 then ROM will not do | swapping Lothar Waßmann -- ___________________________________________________________ Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 Geschäftsführer: Matthias Kaussen Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 www.karo-electronics.de | info@xxxxxxxxxxxxxxxxxxx ___________________________________________________________ -- 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