Problems with r/w on mtdblock0

[Ian]

> Of course it WILL BEHAVIOR THIS WAY !!!!
What is /dev/mtd0 ?


Is it a "raw" device ... do I see unhindered access to the DoC Millennium, or am
I being processed in some way (maybe address mapped) .. ?



 
> The DoC has an NAND flash chip in side. For NAND flash chip
> you can only turn each bit form 1 to 0 by WRITE operation,
> not the other way around. The only way to turn a 0 bit to 1
> is by a ERASE operation. This is why I have to erase the first
> few Erase Blocks befor writing the DoC in my loaddoc script.
> 
> # Erase the first 128 pages of the DoC,
> # 128 pages == 128 page * 512 bytes per page == 1 MB
> ./erase /dev/mtd0 0 128
> 
> # Use dd to (zero) pad linuxbios.strip to 63 KB
> dd conv=sync bs=63k if=$LINUXBIOS/util/config/winfast/linuxbios.strip 
> of=linuxbios.block
> 
> # Use dd to wrtie IPL to the first and second pages (page 0, 1) on the DoC
> # N.B. if you are using 2.4.0-test10 and later kernel, the conv=notrunc
> # is neceressary.
> dd if=$LINUXBIOS/util/config/winfast/docipl of=/dev/mtd0 conv=notrunc
> dd if=$LINUXBIOS/util/config/winfast/docipl of=/dev/mtd0 seek=1 conv=notrunc
> 
> 
> Ollie
> 
> 
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> 

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