diff options
| author | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-07-18 11:42:15 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-07-20 00:14:14 +0300 |
| commit | dbc44edbf8338d27639214be07fe7ab4f8a903e0 (patch) | |
| tree | b4417f59196306a55eb0baecdda57894420b7205 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 79e1ca37cc0c056f224cc1dd4a301b9dc2f94167 (diff) | |
| download | linux-dbc44edbf8338d27639214be07fe7ab4f8a903e0.tar.xz | |
mtd: rawnand: micron: Fix on-die ECC detection logic
Basing the "mandatory on-die" detection on ID byte 2 does not work,
because Micron has plenty of NANDs using the same device ID code, and
not all of them have forcibly enabled on-die ECC.
Since the "Array Operation" feature does not provide the "ECC
enabled/disabled" bit when the ECC can't be disabled, let's try to use
the "ECC enabled/disabled" bit in the READ_ID bytes.
It seems that this bit is dynamically updated on NANDs where on-die ECC
can freely be enabled/disabled, so let's hope it stays at one when we
have a NAND with on-die ECC forcibly enabled.
Fixes: 51f3b3970a8c ("mtd: rawnand: micron: detect forced on-die ECC")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions