diff options
| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2023-03-28 17:41:03 +0200 |
|---|---|---|
| committer |   Tudor Ambarus <tudor.ambarus@linaro.org> | 2023-03-29 13:46:07 +0300 |
| commit | 4eddee70140b3ae183398b246a609756546c51f1 (patch) | |
| tree | 67b35052e84c31915781c67561a0cc2d45644c5e /drivers/mtd/spi-nor/core.c | |
| parent | mtd: spi-nor: Prepare the introduction of a new locking mechanism (diff) | |
| download | wireguard-linux-4eddee70140b3ae183398b246a609756546c51f1.tar.xz wireguard-linux-4eddee70140b3ae183398b246a609756546c51f1.zip | |
mtd: spi-nor: Add a RWW flag
Introduce a new (no SFDP) flag for the feature that we are about to
support: Read While Write. This means, if the chip has several banks and
supports RWW, once a page of data to write has been transferred into the
chip's internal SRAM, another read operation happening on a different
bank can be performed during the tPROG delay.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230328154105.448540-7-miquel.raynal@bootlin.com
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Diffstat (limited to 'drivers/mtd/spi-nor/core.c')
| -rw-r--r-- | drivers/mtd/spi-nor/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index daed09950ee1..75ec7a3d0b43 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2530,6 +2530,9 @@ static void spi_nor_init_flags(struct spi_nor *nor) if (flags & NO_CHIP_ERASE) nor->flags |= SNOR_F_NO_OP_CHIP_ERASE; + + if (flags & SPI_NOR_RWW) + nor->flags |= SNOR_F_RWW; } /** |