Fwd: Hello -- NAND/NOR Flash design for GTA02
miles_hsieh at openmoko.com
Fri Jan 11 11:38:06 CET 2008
Hi, Werner, Willie, Nod:
production information now:
device nand0 <neo1973-nand>, # parts = 6
#: name size offset mask_flags
0: u-boot 0x00040000 0x00000000 0
1: u-boot_env 0x00040000 0x00040000 0
2: kernel 0x00800000 0x00080000 0
3: splash 0x000a0000 0x00880000 0
4: factory 0x00040000 0x00920000 0
5: rootfs 0x076a0000 0x00960000 0
> - Nod Huang <nod_huang at openmoko.com <mailto:laforge at openmoko.org>>
> http://openmoko.org <http://openmoko.org/>/
> Software for the world's first truly open Free Software mobile phone
>> *寄件人: *Willie Chen <willie_chen at openmoko.com
>> <mailto:willie_chen at openmoko.com>>
>> *日期: *2008年1月10日 上午12時55分20秒
>> *收件人: *Werner Almesberger <werner at openmoko.org
>> <mailto:werner at openmoko.org>>
>> *副本: *Andy Green <andy at openmoko.com <mailto:andy at openmoko.com>>,
>> Wolfgang Spraul <wolfgang at openmoko.com
>> <mailto:wolfgang at openmoko.com>>, tony_tu at fic.com.tw
>> <mailto:tony_tu at fic.com.tw>, nod_huang at openmoko.com
>> <mailto:nod_huang at openmoko.com>, Jim Huang <jserv at openmoko.org
>> <mailto:jserv at openmoko.org>>, openmoko-kernel at lists.openmoko.org
>> <mailto:openmoko-kernel at lists.openmoko.org>
>> *標題: **Re: Hello -- NAND/NOR Flash design for GTA02*
>> 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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