May
4, 2007 - 4:47am by malet jl
hi!
it's some time now that I look the web for this info and getting upset.
I found several mail speaking about the nand command of uboot even some
speaking about jffs2 boot from uboot.... great, but how do we do that? I
don't find any doc about nand command... the only thing I found is help
nand on uboot that says :
Usage:
nand - NAND sub-system
you'll agree that it's really usefull no? main uboot documentation
don't
even make reference about that... I use an at91sam9261 evalboard with
atmel's uboot binary. I see fatinfo, fatload.... but jffs2? flinfo only
report spi flash.... nothing about nand... so I begin to get lost.... is
there a boot from jffs2 howto somewhere?
thanks.
jlm
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Submitted by malet jl on May 8, 2007 - 4:01am.
Bonjour,
well I read somewhere that uboot was supporting file loading from ext2
and jffs2 filesystem.... so at first I was planing to integrate the root
filesystem and the kernel on the same jffs2 partition... reading your
docs seems to advise to store the kernel on a separate partitions
http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&p=316406
merci
JLM
Joseph Cheek a écrit :
> Bonsoir Jean-Luc,
>
> What are you trying to do? It wasn't clear from your e-mail. JFFS2
is
> a filesystem type, so it contains your root filesystem, but
typically
> not your kernel. Are you trying to figure out how to burn your
kernel
> to flash, your root filesystem to flash, both, or something else
altogether?
>
> Typically we recommend booting the kernel via TFTP and mounting
the root
> filesystem via NFS until you are ready to deploy.
>
> Merci!
>
> Joseph Cheek, [email protected]
> LinuxLink Web Site Product Manager
> http://lldn.timesys.com/
>
>
>
> jean-luc malet wrote:
>
>> hi!
>> it's some time now that I look the web for this info and
getting upset.
>> I found several mail speaking about the nand command of uboot
even some
>> speaking about jffs2 boot from uboot.... great, but how do we
do that? I
>> don't find any doc about nand command... the only thing I
found is help
>> nand on uboot that says :
>> Usage:
>> nand - NAND sub-system
>>
>> you'll agree that it's really usefull no? main uboot
documentation don't
>> even make reference about that... I use an at91sam9261
evalboard with
>> atmel's uboot binary. I see fatinfo, fatload.... but jffs2?
flinfo only
>> report spi flash.... nothing about nand... so I begin to get
lost.... is
>> there a boot from jffs2 howto somewhere?
>> thanks.
>> jlm
>> _______________________________________________
>> Timestorm-users-list mailing list
>> [email protected]
>> https://lists.timesys.com/listinfo/timestorm-users-list
>>
>>
>
>
>
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uboot documentation? nand command?
jean-luc malet wrote:
> hi!
> it's some time now that I look the web for this info and getting upset.
> I found several mail speaking about the nand command of uboot even some
> speaking about jffs2 boot from uboot.... great, but how do we do that? I
> don't find any doc about nand command... the only thing I found is help
> nand on uboot that says :
> Usage:
> nand - NAND sub-system
>
> you'll agree that it's really usefull no? main uboot documentation don't
> even make reference about that... I use an at91sam9261 evalboard with
> atmel's uboot binary. I see fatinfo, fatload.... but jffs2? flinfo only
> report spi flash.... nothing about nand... so I begin to get lost.... is
> there a boot from jffs2 howto somewhere?
I think the "help" command in this version of u-boot isn't working
correctly. I had the same issues when first doing this. Luckily, we do
have a doc from my experience doing this on the board:
http://lldn.timesys.com/docs/flash_to_nand
It also took me a long time to find docs, since the help command is
broken and there seems to be almost no web docs out there for it. I
found this on another site, which is how I finally figured it out:
http://wiki.openmoko.org/wiki/U-boot#NAND
Jeremiah Lott
TimeSys Corporation
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