Dear Han Xu,
Il 28/07/2015 19:50, Han Xu ha scritto:
i.MX6QP and i.MX7D BCH module integrated a new feature to detect the
bitflip number for erased NAND page. So for these two platform, set the
erase threshold to gf/2 and if bitflip detected, GPMI driver will
correct the data to all 0xFF.
That's an iteresting feature of iMX6QP
We were discussing about erased NAND page bitflip in MTD ML a few days ago.
Is gf/2 a right value to choose? Why?
IIUC, in a previuos MTD-level patch [1] Brian used ECC strength as
threshold.
Could you please also share with which NAND device you tested this patch?
Kind regards and TIA,
--
Andrea SCIAN
DAVE Embedded Systems
[1] http://article.gmane.org/gmane.linux.drivers.mtd/52216
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