diff options
| author | Takahiro Kuwano <Takahiro.Kuwano@infineon.com> | 2024-12-03 11:46:49 +0900 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2024-12-05 11:14:21 +0100 |
| commit | 6d9d6ab3a82af50e36e13e7bc8e2d1b970e39f79 (patch) | |
| tree | 1b82f0c3c0a35333082761a4aa2154e534c1846f /include/linux/mtd | |
| parent | c6858779f1f549442ec2fe2f69800d8e9cd904ce (diff) | |
mtd: spinand: Introduce a way to avoid raw access
SkyHigh spinand device has ECC enable bit in configuration register but
it must be always enabled. If ECC is disabled, read and write ops
results in undetermined state. For such devices, a way to avoid raw
access is needed.
Introduce SPINAND_NO_RAW_ACCESS flag to advertise the device does not
support raw access. In such devices, the on-die ECC engine ops returns
error to I/O request in raw mode.
Checking and marking BBM need to be cared as special case, by adding
fallback mechanism that tries read/write OOB with ECC enabled.
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/spinand.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mtd/spinand.h b/include/linux/mtd/spinand.h index 702e5fb13dae..5cf11005b41a 100644 --- a/include/linux/mtd/spinand.h +++ b/include/linux/mtd/spinand.h @@ -314,6 +314,7 @@ struct spinand_ecc_info { #define SPINAND_HAS_CR_FEAT_BIT BIT(1) #define SPINAND_HAS_PROG_PLANE_SELECT_BIT BIT(2) #define SPINAND_HAS_READ_PLANE_SELECT_BIT BIT(3) +#define SPINAND_NO_RAW_ACCESS BIT(4) /** * struct spinand_ondie_ecc_conf - private SPI-NAND on-die ECC engine structure |