Intel NOR flash(P30) query

[Jörn Engel]

On Tue, 16 August 2005 19:11:46 +0400, Vitaly Bordug wrote:
> 
> I'm not an MTD guru, but...

No shame in that.

> Manjula D wrote:
> >Hi All,
> >Iam a newbie to mtd. We have a MPC8272 custom board with INTEL
> >TE28F640P30B85 (P30-CFI compilant)NOR boot Flash and NAND flash
> >with JFFS2 filesystem running linux-2.4.20-8.
> >The NOR Flash need not have any partition/filesystem.
> >My requirement is to have an application to copy an image from
> >the NAND Flash to the NOR Flash.
> >My current understanding is 
> >Under RAM/ROM/Flash chip drivers on selecting, 
> >Detect flash chips by Common Flash Interface (CFI) probe :
> >  cfi_probe_init() will register with the mtd_chip_driver.
> >Support for Intel/Sharp flash chips:
> >  cfi_cmdset_0001.c contains the list of commands supported by
> >  Intel.
> >  
> >1) I need to understand how the application views the NOR flash
> >    once it is registered as a mtd device.
> The answer is trivial - as mtd device. You can enable support for mtd as 
> character or block devices - thus you will have say /dev/mtdchar1 to 
> work from your application.

Almost correct.  See:
http://www.linux-mtd.infradead.org/faq/general.html

Jörn

-- 
Data dominates. If you've chosen the right data structures and organized
things well, the algorithms will almost always be self-evident. Data
structures, not algorithms, are central to programming.
-- Rob Pike