MTD/ DoC Millenium Plus - Failure in flash detection

[Ruediger Haertel]

Am Donnerstag, 7. Juli 2005 15:32 schrieb Ruediger Haertel:
> Am Donnerstag, 7. Juli 2005 15:21 schrieb Thomas Gleixner:
> > On Thu, 2005-07-07 at 15:05 +0200, Ruediger Haertel wrote:
> > > For the NAND DiskOnChip driver I had to apply the patch mentioned
> > > here:
> > > http://lists.infradead.org/pipermail/linux-mtd/2004-October/01064
> > >0. html
> > >
> > >
> > > What irritates me is the output:
> > > DiskOnChip BNAND Media Header not found.
> > >
> > > Why is that ?
> >
> > Obviously the header is not at the expected place.
> >
> > > />nanddump /dev/mtd5 /var/xxx 0 128
> > > MTD_open
> > > MTD_ioctl
> > > Unknown flash (not normalM NAND)
> >
> > Is this nanddump from latest MTD-CVS ?
>
> No. I use the one of the uClinux-dist-20041215. I'll give the one
> from mtd-cvs a try. Should I use realy the latest snapshot or the one
> I am using from date 2005.03.03.
>

Now I used the nanddump from mtd-cvs 2005-03-03. The same result. It 
reads oobsize and oobblock as 0.

I printed the values of the mtd structure during probing and they are:
oob size: 16, oob block: 512

Seems ok. So I guess my device file is not correct. I am 
using /dev/mtd5,c,90,9. 

Just for completeness here is the probing output of the driver:

Using configured DiskOnChip probe address 0x40000000
DiskOnChip found at 0x40000000
NAND device: Manufacturer ID: 0x98, Chip ID: 0x73 (Toshiba NAND 16MiB 
3,3V 8-bit)
oob size: 16, oob block: 512
nand_read_ecc: Failed ECC read, page 0x00000020 on chip 0
ECC error scanning DOC at 0x4000
nand_read_ecc: Failed ECC read, page 0x00000040 on chip 0
ECC error scanning DOC at 0x8000
nand_read_ecc: Failed ECC read, page 0x00000060 on chip 0
ECC error scanning DOC at 0xc000
nand_read_ecc: Failed ECC read, page 0x00000080 on chip 0
ECC error scanning DOC at 0x10000
DiskOnChip BNAND Media Header not found.
mtd: Giving out device 5 to DiskOnChip Millennium Plus

-- 

Ruediger Haertel