mtd: nand: mxc: Fix failed/corrected values for v2/v3 controllers

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Currently nand_read_page_hwecc() from nand_base calls
mxc_nand_correct_data_v2_v3() for each subpage, but in this function we
return the corrected/failed results for the whole page instead
of a single subpage. On a 2k page size Nand this leads to results which
are 4 times too high.
The whole ecc.calculate/ecc.correct mechanism used by
nand_read_page_hwecc() is not suitable for devices which correct the
data in hardware, so fix this by using a driver specific read_page
function which does the right thing. Also add read_page_raw and read_oob
For proper raw and oob read support.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

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Sascha Hauer 2018-01-17 12:32:09 +01:00 • committed by Boris Brezillon

parent 1af0b31474

commit 67b87f66ca

1 changed files with 77 additions and 9 deletions

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drivers/mtd/nand/mxc_nand.c

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