From: Takahiro Kuwano Takahiro.Kuwano@infineon.com
[ Upstream commit 4199c1719e24e73be0acc8b0146fc31ad8af9771 ]
Infineon(Cypress) SEMPER NOR flash family has on-die ECC and its program granularity is 16-byte ECC data unit size. JFFS2 supports write buffer mode for ECC'd NOR flash. Provide a way to clear the MTD_BIT_WRITEABLE flag in order to enable JFFS2 write buffer mode support.
Fixes: b6b23833fc42 ("mtd: spi-nor: spansion: Add s25hl-t/s25hs-t IDs and fixups") Suggested-by: Tudor Ambarus tudor.ambarus@linaro.org Signed-off-by: Takahiro Kuwano Takahiro.Kuwano@infineon.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/a1cc128e094db4ec141f85bd380127598dfef17e.168076074... Signed-off-by: Tudor Ambarus tudor.ambarus@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/spi-nor/spansion.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index f4e9a1738234a..aef085b476deb 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -266,13 +266,10 @@ static void s25hx_t_post_sfdp_fixup(struct spi_nor *nor)
static void s25hx_t_late_init(struct spi_nor *nor) { - struct spi_nor_flash_parameter *params = nor->params; - /* Fast Read 4B requires mode cycles */ - params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8; + nor->params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
- /* The writesize should be ECC data unit size */ - params->writesize = 16; + cypress_nor_ecc_init(nor); }
static struct spi_nor_fixups s25hx_t_fixups = {