When an Erase or Program error occurs on a spansion/cypress or a
micron flash, the WEL bit remains set to one and should be cleared
with a WRDI command in order to protect against inadvertent writes
that can possible corrupt the contents of the memory.
Winbond, macronix, gd, etc., do not support the E_ERR and P_ERR bits in the
Status Register and always clear the WEL bit regardless of the outcome
of the erase or page program operation (ex w25q40bw, MX25L25635E).
Issue a WRDI command when erase or page program errors occur.
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Tested-by: John Garry <john.garry@huawei.com>
The SPI NOR controllers drivers must not be able to use structures that
are meant just for the SPI NOR core.
struct spi_nor_flash_parameter is filled at run-time with info gathered
from flash_info, manufacturer and sfdp data. struct spi_nor_flash_parameter
should be opaque to the SPI NOR controller drivers, make sure it is.
spi_nor_option_flags, spi_nor_read_command, spi_nor_pp_command,
spi_nor_read_command_index and spi_nor_pp_command_index are defined for the
core use, make sure they are opaque to the SPI NOR controller drivers.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Cross manufacturer code is unlikely and discouraged, get rid of the
MFR definitions.
Suggested-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
All entries have been moved to manufacturer drivers. Get rid of this
empty table.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Create a SPI NOR manufacturer driver for XMC chips, and move the
XMC definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Xilinx chips, and move the
Xilinx definitions outside of core.c.
While at it, remove the SPI_S3AN flag which is now useless.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Catalyst chips, and move the
Catalyst definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Winbond chips, and move the
Winbond definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for SST chips, and move the
SST definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Spansion chips, and move the
Spansion definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Micron/ST chips, and move the
Micron/ST definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Macronix chips, and move the
Macronix definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Tested-by: Xiang Chen <chenxiang66@hisilicon.com>
Create a SPI NOR manufacturer driver for ISSI chips, and move the
ISSI definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Intel chips, and move the
Intel definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Create a SPI NOR manufacturer driver for GigaDevice chips, and move the
GigaDevice definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Fujitsu chips, and move the
Fujitsu definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Everspin chips, and move the
Everspin definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for ESMT chips, and move the
ESMT definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Eon chips, and move the
Eon definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Create a SPI NOR manufacturer driver for Atmel chips, and move the
Atmel definitions outside of core.c.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Declare a spi_nor_manufacturer struct and add basic building blocks to
move manufacturer specific code outside of the core.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Expose the flash_info struct and some function prototypes that
will be used by manufacturers.
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
It makes the core file a bit smaller and provides better separation
between the SFDP parsing and core logic.
Keep the core.h and sfdp.h definitions private in drivers/mtd/spi-nor/.
Both expose just the definitions that are required by the core and
manufacturer drivers. None of the SPI NOR controller drivers should
include them.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Move all SPI NOR controller drivers to a controllers/ sub-directory
so that we only have SPI NOR related source files under
drivers/mtd/spi-nor/.
Rename spi-nor.c into core.c, we are about to split this file in multiple
source files (one per manufacturer, plus one for the SFDP parsing logic).
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Tudor Ambarus