Re: DiskonChip2000

Re: DiskonChip2000

[David Woodhouse]

mkilburn@ftel.net said:
> I've got a DiskOnChip2000 and Linux drivers from M-systems web page. I
> would like to use your drivers instead. Do I need to program the flash
> with the alternate firmware for Linux or do your drivers work with the
> normal firmware?

My drivers don't quite work with the normal firmware yet - although my NFTL 
driver was written from the specification which M-Systems gave me, there are 
subtle differences between my understanding (and hence my implementation) of 
NFTL and their implementation, which means that their driver doesn't always 
recognise the NFTL after I've been writing to it.

I hope to get that fixed soon.

----                                 ----                                 ----
David Woodhouse        David.Woodhouse@mvhi.com       Office: (+44) 1223 810302
 Project Leader,     Process Information Systems      Mobile: (+44) 976 658355
    Axiom (Cambridge) Ltd., Swaffham Bulbeck, Cambridge, CB5 0NA, UK.
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Re[2]: DiskonChip2000

[Mike Kilburn]

David Woodhouse <David.Woodhouse@mvhi.com> wrote:
> My drivers don't quite work with the normal firmware yet - although my NFTL 
> driver was written from the specification which M-Systems gave me, there are
> subtle differences between my understanding (and hence my implementation) of
> NFTL and their implementation, which means that their driver doesn't always 
> recognise the NFTL after I've been writing to it.
> 
> I hope to get that fixed soon.

For now read only will do for my tests. The M-Systems drivers README indicates
there may be severe blocking in kernel mode, so much so that mouse movements
may be affected, this is unacceptable for a soft real-time system which is
why I want to use drivers with source code. Do you happen to know what the
special Linux firmware does different than their normal firmware?

Also, they dont work with lilo due to where lilo loads the kernel. This
requires a patch to lilo. Do you know of another boot loader which does
not have this problem?

 



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Re: Re[2]: DiskonChip2000

[David Woodhouse]

mkilburn@ftel.net said:
>  For now read only will do for my tests. The M-Systems drivers README
> indicates there may be severe blocking in kernel mode, so much so that
> mouse movements may be affected, this is unacceptable for a soft
> real-time system which is why I want to use drivers with source code.

My code also behaves the same way, at the moment - but it's also fairly high 
on the list of things to fix.

> Do you happen to know what the special Linux firmware does different
> than their normal firmware?

I wasn't aware that they had any different firmware for use with Linux.

> Also, they dont work with lilo due to where lilo loads the kernel.
> This requires a patch to lilo. Do you know of another boot loader
> which does not have this problem?

You could try grub.

----                                 ----                                 ----
David Woodhouse        David.Woodhouse@mvhi.com       Office: (+44) 1223 810302
 Project Leader,     Process Information Systems      Mobile: (+44) 976 658355
    Axiom (Cambridge) Ltd., Swaffham Bulbeck, Cambridge, CB5 0NA, UK.
             finger dwmw2@ferret.lmh.ox.ac.uk for PGP key.




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Re: Re[2]: DiskonChip2000

[Kira Brown]

On Tue, 31 Aug 1999, David Woodhouse wrote:

> You could try grub.

No, grub doesn't work either.  The only one I've found so far that works
is loadlin, which we use with ROMDOS (ick).

kira.




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