[ECOS] Re: Re[ECOS] dboot + Flash driver for 2k page size

lux_cnis luxiang527@gmail.com
Tue Dec 7 17:25:00 GMT 2010


Hi Ross,

Thank you for your reply.

As for the command "fis write", I used a serial blaster contributed by
Curtis Monroe from TS-7200 yahoo group. I think his main contribution is to
enable "write" action to rewrite eeprom. Therefore, this "fis write" may be
a little bit different from FIS.

So I guess the problem should be the initialization code of my ecos. But I
have no any idea about how to do some changes in ecos to make the compiled
RedBoot recognize my flash. Could you please offer me some hints about this
part of work?

Thank you so much.

Best Regards,
Lux



Ross Younger-5 wrote:
> 
> * lux_cnis <luxiang527@gmail.com> wrote:
>> My flash is SAMSUNG K9F1G08U0B, whose page size is 2K. Therefore, my
>> redboot can not recognize the flash.
> 
> The FIS does not, at present, support NAND flash parts. This is because
> it only supports NOR flash.  To make this work you would probably need
> to create a bridging driver to one of the eCos NAND flash libraries and
> a translation layer to make the NAND appear, to RedBoot, to be NOR.
> 
> If you don't need FIS you can still run a filesystem on the NAND by
> building in fileio support.  This is known to work in RedBoot and adds
> a number of new commands.  YAFFS is the recommended filesystem for NAND
> parts (though beware - it's not under quite the same license as eCos).
> 
> 
> Ross
> 
> -- 
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> 
> 
> 

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