Mtd block access (jffs2 formatted) and mtd char access(unformatted) on different partitions of a single flashdevice
John Burch
jburch at vincisystems.com
Wed May 21 09:49:30 EDT 2003
> > > Also, does the mtd driver for AMD CFI devices handle
> > > AMD's ability to support erasure of multiple sectors
> simultaneously?
> >
> > Probably not yet, but there's no reason why it shouldn't.
> Criticism in
> > 'diff -u' form is preferred :)
> >
>
> Is this chip-feature "probable"? We used to do simutaneous
> erases in a bootloader, but after a while we started using
> chips that couldn't do that so we had to change the behaviour
> to be able to handle all sorts of chips. I'm not sure if CFI
> covers that particular feature, but it would be great if it
> did. It wouldn't be so great to have to check JEDEC IDs...
>
As far as I know, the feature is unique to AMD though I don't know if it
is supported across their entire product line. Also, it is not a CFI
specific feature. For example, it's discussed in the 29LV008B (not a
CFI compliant device) data sheet under the "Sector Erase Command
Sequence" section.
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