diff options
| author | Takahiro Kuwano <Takahiro.Kuwano@infineon.com> | 2024-10-15 13:08:36 +0900 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-10-15 08:57:49 -0600 |
| commit | 10e75dd0bce34134df15f2c2d9251a919f6bcdc7 (patch) | |
| tree | 341a9a5519e7820e3414dd68b6367c6f99903b67 | |
| parent | 20f1383bad59996aeb62e92e296f9ee445ff71b6 (diff) | |
mtd: spi-nor: Set ECC unit size to MTD writesize in Infineon SEMPER flashes
The Infineon SEMPER NOR flash family uses 2-bit ECC by default with each
ECC block being 16 bytes. Under this scheme multi-pass programming to an
ECC block is not allowed. Set the writesize to make sure multi-pass
programming is not attempted on the flash.
Acked-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
| -rw-r--r-- | drivers/mtd/spi/spi-nor-core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 46af9b4fe47..f5c9868bbca 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -3855,6 +3855,13 @@ static void s25_late_init(struct spi_nor *nor, struct spi_nor_flash_parameter *params) { nor->setup = s25_s28_setup; + + /* + * Programming is supported only in 16-byte ECC data unit granularity. + * Byte-programming, bit-walking, or multiple program operations to the + * same ECC data unit without an erase are not allowed. + */ + params->writesize = 16; } static int s25_s28_post_bfpt_fixup(struct spi_nor *nor, @@ -4019,6 +4026,13 @@ static void s28hx_t_late_init(struct spi_nor *nor, { nor->octal_dtr_enable = spi_nor_cypress_octal_dtr_enable; nor->setup = s25_s28_setup; + + /* + * Programming is supported only in 16-byte ECC data unit granularity. + * Byte-programming, bit-walking, or multiple program operations to the + * same ECC data unit without an erase are not allowed. + */ + params->writesize = 16; } static void s28hx_t_post_sfdp_fixup(struct spi_nor *nor, |