SRU justification:

impact:
 - writing to certain NAND flash configurations impossible
  (eg on IGEPv2 OMAP3430 board)
  -> thus platform flash is effectively useless
addressed how:
 - by adding support for this OneNAND geometry
patch:
 (attached)
reproducer (TEST CASE):
 1. boot Ubuntu 10.04 with board with 512MB OneNAND chips (over two banks)
 2. $ sudo nandwrite -p /dev/mtd3 uImage (or similar)
 3. should see 'Writing data to block 0 at offset 0x0' etc
 4. FAIL if 'Unknown flash (not normal NAND)'
potential for regression:
 - none, since this adds 'or' conditions and is minimal

-- 
nandwrite failing with IGEPv2 (OMAP 3430)
https://bugs.launchpad.net/bugs/583280
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