mtd: brcmnand: Detect sticky ucorr ecc error on dma reads

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This change provides a fix for controller bug where nand
controller could have a possible sticky error after a PIO
followed by a DMA read. The fix retries a read if we see
a uncorr_ecc after read to detect such sticky errors.
The fix applies to only controller version 7.0 and 7.1.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

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Kamal Dasu 2016-06-09 17:17:55 -04:00 • committed by Boris Brezillon

parent 02b88eea9f

commit bc265323de

1 changed files with 18 additions and 0 deletions

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drivers/mtd/nand/brcmnand/brcmnand.c

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