20 Jul
2011
20 Jul
'11
7:53 p.m.
On Wed, 20 Jul 2011 08:55:00 +0200 Helmut Raiger helmut.raiger@hale.at wrote:
On 07/06/2011 07:04 PM, helmut.raiger@hale.at wrote:
From: Helmut Raigerhelmut.raiger@hale.at
When writing 0x4000 to the unlockend_blkaddr register, large writes to a 2k page NAND sometimes fail. The current kernel driver writes 0xFFFF to this register for V2 of the nand controller.
However on an i.MX31 this also fixes writes larger than 32MB. The datasheet is very unspecific, but (0x4000=16384)*2000 roughly fits the limits we're encountering with NAND writes. This problem might be NAND chip specific.
Any comments?
I'll apply it (with a minor formatting fix), if nobody has any more specific information about this register.
-Scott