linux/drivers/mtd/spi-nor
Pratyush Yadav c3266af101 mtd: spi-nor: spansion: add support for Cypress Semper flash
The Cypress Semper flash is an xSPI compliant octal DTR flash. Add
support for using it in octal DTR mode.

The flash by default boots in a hybrid sector mode. But the sector map
table on the part I had was programmed incorrectly and the SMPT values
on the flash don't match the public datasheet. Specifically, in some
places erase type 3 was used instead of 4. In addition, the region sizes
were incorrect in some places. So, for testing I set CFR3N[3] to enable
uniform sector sizes. Since the uniform sector mode bit is a
non-volatile bit, this series does not change it to avoid making any
permanent changes to the flash configuration. The correct data to
implement a fixup is not available right now and will be done in a
follow-up patch if needed.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
[vigneshr@ti.com: Drop unnecessary sleep in Octal DTR switch sequence]
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20201005153138.6437-15-p.yadav@ti.com
2020-11-09 19:00:01 +05:30
..
controllers mtd: spi-nor: intel-spi: Add support for Intel Alder Lake-S SPI serial flash 2020-09-29 18:46:20 +05:30
atmel.c mtd: spi-nor: Move Atmel bits out of core.c 2020-03-17 09:28:02 +02:00
catalyst.c mtd: spi-nor: Move Catalyst bits out of core.c 2020-03-17 09:28:05 +02:00
core.c mtd: spi-nor: core: disable Octal DTR mode on suspend. 2020-11-09 11:56:17 +05:30
core.h mtd: spi-nor: sfdp: detect Soft Reset sequence support from BFPT 2020-11-09 11:56:17 +05:30
eon.c mtd: spi-nor: Move Eon bits out of core.c 2020-03-17 09:28:02 +02:00
esmt.c mtd: spi-nor: Move ESMT bits out of core.c 2020-03-17 09:28:02 +02:00
everspin.c mtd: spi-nor: Move Everspin bits out of core.c 2020-03-17 09:28:03 +02:00
fujitsu.c mtd: spi-nor: Move Fujitsu bits out of core.c 2020-03-17 09:28:03 +02:00
gigadevice.c mtd: spi-nor: Trim what is exposed in spi-nor.h 2020-03-17 09:28:07 +02:00
intel.c mtd: spi-nor: Move Intel bits out of core.c 2020-03-17 09:28:03 +02:00
issi.c mtd: spi-nor: Trim what is exposed in spi-nor.h 2020-03-17 09:28:07 +02:00
Kconfig mtd: spi-nor: Fix SPI NOR acronym 2020-05-28 10:46:23 +03:00
macronix.c mtd: spi-nor: macronix: Add SECT_4K to mx25l12805d 2020-09-29 18:44:27 +05:30
Makefile mtd: spi-nor: Compile files in controllers/ directory 2020-04-09 22:00:13 +02:00
micron-st.c mtd: spi-nor: micron: Add SPI_NOR_DUAL_READ flag on mt25qu02g 2020-07-27 08:37:06 +03:00
sfdp.c mtd: spi-nor: sfdp: detect Soft Reset sequence support from BFPT 2020-11-09 11:56:17 +05:30
sfdp.h mtd: spi-nor: sfdp: detect Soft Reset sequence support from BFPT 2020-11-09 11:56:17 +05:30
spansion.c mtd: spi-nor: spansion: add support for Cypress Semper flash 2020-11-09 19:00:01 +05:30
sst.c mtd: spi-nor: Move SST bits out of core.c 2020-03-17 09:28:05 +02:00
winbond.c mtd: spi-nor: winbond: Add support for w25q64jwm 2020-09-29 18:47:11 +05:30
xilinx.c mtd: spi-nor: Trim what is exposed in spi-nor.h 2020-03-17 09:28:07 +02:00
xmc.c mtd: spi-nor: Move XMC bits out of core.c 2020-03-17 09:28:06 +02:00