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List:       uclinux-dev
Subject:    RE: [uClinux-dev] PATCH: speedup of flash writing (cfi_cmdset_0002.c)
From:       Erwin Authried <eauth () softsys ! co ! at>
Date:       2006-04-27 10:48:32
Message-ID: 1146134912.20959.110.camel () justakiss
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Am Donnerstag, den 27.04.2006, 12:01 +0200 schrieb Falk Brettschneider:
> > --- Ursprüngliche Nachricht ---
> > Von: Erwin Authried <eauth@softsys.co.at>
> >
> > have you checked the latest MTD code if that isn't supported already?
> Hi Erwin,
> "Browse CVS" says the last change of cfi_cmdset_0002.c was 8 months before.
> My cvs-update is newer. If you grep the file for "25" or "multi" or such
> things you'll see multi-byte write isn't implemented. You'll just find
> bypass mode (which is deactivated!) and slow 16bit-writing.
> 
> Cheers, F@lk

Hello Falk,

I was talking about the actual mtd-2.6 source.

http://git.infradead.org/?p=mtd-2.6.git;a=tree

If you look at drivers/mtd/chips/cfi_cmdset_0002.c, you will see that
write buffer mode is supported (function do_write_buffer). Probably that
can't be used 1:1 in 2.4, but it may still save some work.

Regards,
Erwin


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