From: Takahiro Kuwano Takahiro.Kuwano@infineon.com
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.
Signed-off-by: Takahiro Kuwano Takahiro.Kuwano@infineon.com --- drivers/mtd/spi/spi-nor-core.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 8f371a5213..773afd4040 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -3459,6 +3459,13 @@ static void s25_default_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, @@ -3623,6 +3630,13 @@ static void s28hx_t_default_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,