On Mon, 2013-03-04 at 16:08 +0800, Huang Shijie wrote: > 于 2013年03月04日 15:50, Artem Bityutskiy 写道: > > On Mon, 2013-03-04 at 13:57 +0800, Huang Shijie wrote: > >> The current code uses the @id to store the device id(byte 1). > >> But if we use the 8 bytes id data as the keyword, and expand the @id > >> field to 8byte array, > >> the device id is the second byte now. All the added zeros are for the > > I do not think you need to store the full array of ID's. Device ID's for > > all the 4 of above chips are different, which is enough to distinguish > > between them. > > > > The only thing you need to add is the OOB size field to 'struct > > nand_flash_dev'. > > > If i only add the oob size field. There will be two items with the same > Device ID in nand_flash_ids table, > one has oob_size, one does not have. such as: > > {"NAND 8GIB 3,3V 8-bit", 0xDE, 0, 8192, 0, LP_OPTIONS},
Do you know what is this chip? > {"NAND 8GIB 3,3V 8-bit", 0xDE, 0, 8192, 0, LP_OPTIONS, 640}, //OOB > size is 640 So there are really 2 different chips with the same device id and different OOB size? If you had 2 datasheets for me demonstrating this, I'd be grateful. -- Best Regards, Artem Bityutskiy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/