Rickard x Andersson 6d469f8637 mtd: rawnand: toshiba: Choose the interface configuration for TH58NVG2S3HBAI4
The Kioxia/Toshiba TH58NVG2S3HBAI4 NAND memory is not ONFI compliant.
The timings of the NAND chip memory are quite close to ONFI mode 4 but
is breaking that spec.

By providing our own set of timings, erase block read speed is increased
from 6910 kiB/s to 13490 kiB/s and erase block write speed is increased
from 3350 kiB/s to 4410 kiB/s.

Tested on IMX6SX which has a NAND controller supporting EDO mode.

Signed-off-by: Rickard x Andersson <rickaran@axis.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200529111322.7184-27-miquel.raynal@bootlin.com
2020-06-26 08:35:08 +02:00
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