From: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
[ 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@xxxxxxxxxx>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/a1cc128e094db4ec141f85bd380127598dfef17e.1680760742.git.Takahiro.Kuwano@xxxxxxxxxxxx
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 581f209c27347..7e7c68fc7776d 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -260,13 +260,10 @@ 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 = {
--
2.39.2
