tor 2014-12-18 klockan 13:47 +0100 skrev Michal Suchanek: > Yes, that's what you can obviously do. If the ID listed in the > datasheet and the ID read by the kernel does not agree put the ID read > in the table. > > However, how is Joe User with a Chinese tablet supposed to add his NAND chip?
If the chip supports JEDEC identification then it's supposedly automatically configured.. sadly it seems most chineese tablets uses non-JEDEC identified NAND chips. If not then one need to go thru the manual process of finding the datasheet and try to find needed parameters from there which means opening the device to find the NAND chip model, search the Internet for a datasheet (if lucky), or find something usable in the Allwinner drivers if you can find usable source version. > If a Joe User sent us this datasheet can we fabricate an ID entry form > that datasheet alone? How? Only if the datasheets lists usable identification strings, something many get wrong even from well known NAND manufacturers. > If not should we add a patch to the kernel to always print the full > ID? If so how can we believe *anything* in the datasheet if even > something as simple and basic as chip ID is wrong? General timing data should be correct, but... honestly I have even seen page size and OOB size being specified wrongly in datasheets. For many chips finding any reliable information is not easy. Regards Henrik -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
