[PATCH 0/2] PowerPC: Add 44x NDFC device-tree aware support

Josh Boyer jwboyer at linux.vnet.ibm.com
Fri Oct 26 14:50:03 EDT 2007

On Fri, 26 Oct 2007 20:30:58 +0400
Valentine Barshak <vbarshak at ru.mvista.com> wrote:

> I've worked in parallel with Stefan Roese on the new OF NDFC support.
> This version (as well as Stefan's) is based on the original NDFC driver by Thomas Gleixner.
> The major difference is that the original implements each chip connected NDFC banks as a
> separate MTD device. Here I try to have one MTD device spread on all chips found.
> However, the chips should have equal ID's and sizes, but I've never seen several different
> chips attached to single ndfc. 

Hm.  Why did you do that?  It adds restrictions to the driver that
really don't need to be present.  If people want a single MTD device
across multiple chips, they can use mtdconcat.

Remember, just because you've never seen something, doesn't mean it
doesn't exist.  Bamboo even has two different sized NAND chips
hooked to the NDFC, IIRC.


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