[PATCH 27/74] ST SPEAr : NAND interface driver for spear platforms

[Sebastian RASMUSSEN]

Hi!

> Adding on top of what Armando has already pointed out, FSMC block may 
> have different versions and each of them may support different features 
> based on its configuration eg. spear device's FSMC block is version8 
> and is configured for 13 byte ecc(per 512 bytes data, BCH8 algorithm). 
> There are other possibilities eg. BCH4, BCH2 etc which are not used in 
> spear devices.

Looking at the future trend of NAND flash memories I believe that BCH8 is
likely to be of most interest, but of course having backwards compatibility
with already existing FSMC block usage is interesting enough.

> Making it generic would also entail supporting all possible configurations 
> through single driver (makes more sense)
[...]
> Alessandro/Sebastian: Is it OK to add a common driver for all FSMC versions
> and customizations

I believe that a common driver is the best way forward, yes. Let me know if I
can assist you in any of the development or testing.

 / Sebastian