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| author | Takahiro Kuwano <Takahiro.Kuwano@infineon.com> | 2023-04-06 09:17:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-17 12:53:29 +0300 |
| commit | 93eb8dd4b4c17ee0b9a6308e94b40ef7966aee5d (patch) | |
| tree | da162141433d764d530534d338bb52450412a45b /drivers/mtd | |
| parent | 50f54a48f6782a2ec4ba430c6feeb5c6091945e6 (diff) | |
| download | linux-93eb8dd4b4c17ee0b9a6308e94b40ef7966aee5d.tar.xz | |
mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash
[ 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.1680760742.git.Takahiro.Kuwano@infineon.com
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi-nor/spansion.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index 581f209c2734..7e7c68fc7776 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 = { |