Hello -- NAND/NOR Flash design for GTA02
willie_chen at openmoko.com
Wed Jan 9 17:55:20 CET 2008
Hi Nod, Werner,
Please provide your production information. Werner can't decide the
NAND/NOR flash partition map here. Thanks.
According GTA02 product specification, we have backup and maintenance
features. Jserv will also request one partition flash that has erasing
protection here. There is a another design issue that NOR flash is
booting uboot and kernel. Or we still use current state that is booting
from NAND flash.
Werner Almesberger wrote:
> [ Added Cc to nod. ]
> Andy Green wrote:
>> If it is really needed for the data to stay in the flash, I guess since
>> we change the partitioning to support NOR it's okay to change it at the
>> same time to add a partition... what do you think Werner?
> Yes, what we would need to decide this properly is a list (from Nod ?)
> of things that have to go to this partition (or whatever it shall be).
> This list has to detail:
> - what is it ? E.g., serial number.
> - who accesses it ? E.g., set and read by DM2 (= kernel)
> - how big is it, roughly ? E.g., a few bytes.
> - how long does it have to be on the device ? E.g., forever.
> If we can't get this list, then a "worst-case" solution would be to
> just create a new NAND partition, along with all the other partition
> changes. (I suspect that's what production has in mind anyway, i.e.,
> basically what we've done for HXD8.)
> Cheers, Werner
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