From: Takahiro Kuwano Date: Thu, 6 Apr 2023 06:17:45 +0000 (+0900) Subject: mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash X-Git-Tag: v6.1.63~5567 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=93eb8dd4b4c17ee0b9a6308e94b40ef7966aee5d;p=sdk%2Femulator%2Femulator-kernel.git 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 Signed-off-by: Takahiro Kuwano Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/a1cc128e094db4ec141f85bd380127598dfef17e.1680760742.git.Takahiro.Kuwano@infineon.com Signed-off-by: Tudor Ambarus Signed-off-by: Sasha Levin --- 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 = {