Dear Stefan Roese,
In message <200912090709.18420...@denx.de> you wrote:
>
> [Added Scott to Cc]
>
> On Tuesday 08 December 2009 23:03:28 Wolfgang Denk wrote:
> > it seems there is a problem with NAND on Sequoia:
> >
> > U-Boot 2009.11-rc2 (Dec 08 2009 - 22:52:34)
> > ...
> > NAND: 32 MiB
> > ...
> > => nand read 200000 0 2000000
> >
> > NAND read: device 0 whole chip
> > Attempt to read outside the flash area
> > 33554432 bytes read: ERROR
> >
> > As you can see, I try to read the whole device (32 MB), which is
> > actually detectd correctly ("device 0 whole chip"), but then is
> > misinterpreted ("outside the flash area").
>
> I don't think that this is a Sequoia (4xx NDFC) specific problem. My first
> idea was that this is caused because of bad blocks. Bad blocks are skipped
> upon read, but "nand read" still wants to read 32MByte in total. Which is not
> possible when bad blocks are available.
>
> But this is not the case here. I just verified this on sequoia (most likely
> the one you used). No bad blocks here. And it still fails. Reading with one
> block (block size 16k) less seems to be ok though:
>
> => nand read 200000 0 1ffc000
>
> NAND read: device 0 offset 0x0, size 0x1ffc000
> 33538048 bytes read: OK
>
> And just reading the last block also doesn't work:
>
> => nand read 200000 1ffc000 4000
>
> NAND read: device 0 offset 0x1ffc000, size 0x4000
> Attempt to read outside the flash area
> 16384 bytes read: ERROR
>
> Not sure why this is the case. Perhaps an "off by one" error? Scott do you
> have an idea?
Any progress on this?
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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