Marco Felsch 8493b2a06f mtd: rawnand: micron: handle on-die "ECC-off" devices correctly ... Some devices are not supposed to support on-die ECC but experience shows that internal ECC machinery can actually be enabled through the "SET FEATURE (EFh)" command, even if a read of the "READ ID Parameter Tables" returns that it is not. Currently, the driver checks the "READ ID Parameter" field directly after having enabled the feature. If the check fails it returns immediately but leaves the ECC on. When using buggy chips like MT29F2G08ABAGA and MT29F2G08ABBGA, all future read/program cycles will go through the on-die ECC, confusing the host controller which is supposed to be the one handling correction. To address this in a common way we need to turn off the on-die ECC directly after reading the "READ ID Parameter" and before checking the "ECC status". Cc: stable@vger.kernel.org Fixes: dbc44edbf8 ("mtd: rawnand: micron: Fix on-die ECC detection logic") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>		2019-08-03 02:00:01 +02:00
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onenand	This pull-request contains the following changes for MTD:	2019-07-13 15:42:44 -07:00
raw	mtd: rawnand: micron: handle on-die "ECC-off" devices correctly	2019-08-03 02:00:01 +02:00
spi	This pull-request contains the following changes for MTD:	2019-07-13 15:42:44 -07:00
bbt.c	mtd: nand: Fix memory allocation in nanddev_bbt_init()	2018-11-28 15:41:50 +01:00
core.c	mtd: nand: Add max_bad_eraseblocks_per_lun info to memorg	2019-04-08 10:21:08 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	mtd: nand: Add core infrastructure to support SPI NANDs	2018-07-18 09:24:10 +02:00