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mtd: spi-nor-tiny: fix 4-Byte address instructions for Cypress and ISSI

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In theory, for the same vendor, we should use the same instructions as
the spi-nor-core implementation.

Fixes: 72151ad10f ("mtd: spi-nor-core: Add Cypress manufacturer ID in set_4byte")
Fixes: 5bf3f3dd11 ("mtd: spi-nor: Enable QE bit for ISSI flash")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
This commit is contained in:
Shiji Yang
2025-11-26 09:37:41 +08:00
committed by Tom Rini
parent 4f76c90bad
commit eae0ca2125
1 changed files with 4 additions and 0 deletions
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4
drivers/mtd/spi/spi-nor-tiny.c
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@@ -220,6 +220,7 @@ static inline int set_4byte(struct spi_nor *nor, const struct flash_info *info,
/* Some Micron need WREN command; all will accept it */
need_wren = true;
fallthrough;
case SNOR_MFR_ISSI:
case SNOR_MFR_MACRONIX:
case SNOR_MFR_WINBOND:
if (need_wren)
@@ -246,6 +247,9 @@ static inline int set_4byte(struct spi_nor *nor, const struct flash_info *info,
}
return status;
case SNOR_MFR_CYPRESS:
cmd = enable ? SPINOR_OP_EN4B : SPINOR_OP_EX4B_CYPRESS;
return spi_nor_write_reg(nor, cmd, NULL, 0);
default:
/* Spansion style */
nor->cmd_buf[0] = enable << 7;