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| author | Takahiro Kuwano <Takahiro.Kuwano@infineon.com> | 2023-04-06 09:17:46 +0300 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@linaro.org> | 2023-04-08 09:28:37 +0300 |
| commit | a9180c298d3527f43563d02a62cb9e7e145642c6 (patch) | |
| tree | b45f7df5f1bc43207a49fe83f33871592f9cabb9 /drivers/mtd | |
| parent | 4199c1719e24e73be0acc8b0146fc31ad8af9771 (diff) | |
| download | linux-a9180c298d3527f43563d02a62cb9e7e145642c6.tar.xz | |
mtd: spi-nor: spansion: Enable JFFS2 write buffer for S25FS256T
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. Drop the
comment as the same info is now specified in cypress_nor_ecc_init().
Fixes: 6afcc84080c4 ("mtd: spi-nor: spansion: Add support for Infineon S25FS256T")
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/641bfb26c6e059915ae920117b7ec278df1a6f0a.1680760742.git.Takahiro.Kuwano@infineon.com
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/spansion.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index 4d0cc10e3d85..ffeede78700d 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -384,13 +384,7 @@ static void s25fs256t_post_sfdp_fixup(struct spi_nor *nor) static void s25fs256t_late_init(struct spi_nor *nor) { - /* - * 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. See chapter - * 5.3.1 and 5.6 in the datasheet. - */ - nor->params->writesize = 16; + cypress_nor_ecc_init(nor); } static struct spi_nor_fixups s25fs256t_fixups = { |