[PATCH] NAND Flash support for Intel IXP4xx platform

Vitaly Wool vitalywool at gmail.com
Tue Apr 24 07:21:06 EDT 2007


On 4/24/07, Lennert Buytenhek <buytenh at wantstofly.org> wrote:
> > >For that matter, I wonder how much sense it makes to submit a
> > >separate NAND driver for every ARM SoC.  For NOR flashes we have
> > >physmap, we should have something similar for NAND.
> >
> > It won't do for all the cases, but for the drivers where only cmd_ctrl
> > differs that might really make sense.
>
> Yes, exactly.  For a unified NAND driver, you can just assume that the
> data register will be memory-mapped.  This is probably true in 99% of
> the cases.  In cases where this isn't true, people can still write their
> own driver.

Yes, but the "write your own" case will also be applicable to the
cases where the controller has HW ECC capabilities, for instance.

Vitaly




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