diff options
| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2020-10-05 21:01:31 +0530 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2020-11-09 11:56:16 +0530 |
| commit | c6908077b194e46e7180d241ff2dbb85dc30bbd1 (patch) | |
| tree | 774ed8624d87587447b9c7ec40a245261744a2ea /drivers/mtd/spi-nor/sfdp.c | |
| parent | 354b412967016e2f99fb2d5113e7b92b539f33b6 (diff) | |
mtd: spi-nor: Introduce SNOR_F_IO_MODE_EN_VOLATILE
We don't want to enter a stateful mode, where a X-X-X I/O mode
is entered by setting a non-volatile bit, because in case of a
reset or a crash, once in the non-volatile mode, we may not be able
to recover in bootloaders and we may break the SPI NOR boot.
Forbid by default the I/O modes that are set via a non-volatile bit.
SPI_NOR_IO_MODE_EN_VOLATILE should be set just for the flashes that
don't define the optional SFDP SCCR Map, so that we don't pollute the
flash info flags.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20201005153138.6437-9-p.yadav@ti.com
Diffstat (limited to 'drivers/mtd/spi-nor/sfdp.c')
0 files changed, 0 insertions, 0 deletions