[Buildroot] Dataflash rootfs problems (still)

Jorge S. jorgesolla at gmail.com
Thu Oct 25 16:17:10 UTC 2007


What about using the SPI bitbang driver for the AT91??

2007/10/25, Ulf Samuelsson <ulf at atmel.com>:
>
> ons 2007-10-24 klockan 21:34 +0300 skrev Ivan Kuten:
> > >
> > > During the 1st boot, Dropbear creates and "writes" the generated keys,
> maybe
> > > is this *write* operation the one screwing up the dataflash?
> > >
> >
> > We have similar problems with Dataflash&RM9200
> > *write* operation is unreliable - we had corrupted filesystem after
> reboot.
> > Our solution was to use r/o only on dataflash.
> >
>
> I would reduce speed to 5 Mbps or lower. or implement the external gate.
> Moving to the AT91SAM9260 is of course a nice alternative.
> Lower cost, (soon) much higher speed (with the AT91SAM9260A)
> Better BootROM (I defined it :-)
>
>
> >
> > Best regards,
> > Ivan
> > --------------------------------
> > Embedded Linux engineer,
> > Promwad Company: http://www.promwad.com/
> > Homepage : http://www.ivankuten.com/
> > --------------------------------
> --
> Best Regards,
> Ulf Samuelsson
>
>
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