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zephyr/drivers/flash/Kconfig.nor

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drivers: flash: add a generic spi nor flash driver This driver is inspired from the w25qxxdv SPI NOR flash driver which was already implementing the CFI (Common Flash Interface) for its purpose. To handle other NOR flash a flash id table (as Linux do) which contains the geometry for a few SPI NOR flash based on their JEDEC ID has been introduced. We currently support the following flash: - W25Q80 - W25Q16 - W25Q32 - S25FL216K - MX25UM512 The read and write functions are able to handle more then one page at a time and return the number of bytes read or write. Also because every NOR flash expect to disable the write protection before writing or erasing, the write enable command is now part of the write and erase functions. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-12 23:36:24 +08:00
# Copyright (c) 2018 Savoir-Faire Linux.
# SPDX-License-Identifier: Apache-2.0
menuconfig SPI_NOR
kconfig: Use a short consistent prompt style Same change as in commit 8cf8db3a73 ("Kconfig: Use a short, consistent style for prompts"), fixing stuff that got introduced since then. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-02-27 04:12:10 +08:00
bool "SPI NOR Flash"
drivers: flash: add a generic spi nor flash driver This driver is inspired from the w25qxxdv SPI NOR flash driver which was already implementing the CFI (Common Flash Interface) for its purpose. To handle other NOR flash a flash id table (as Linux do) which contains the geometry for a few SPI NOR flash based on their JEDEC ID has been introduced. We currently support the following flash: - W25Q80 - W25Q16 - W25Q32 - S25FL216K - MX25UM512 The read and write functions are able to handle more then one page at a time and return the number of bytes read or write. Also because every NOR flash expect to disable the write protection before writing or erasing, the write enable command is now part of the write and erase functions. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-12 23:36:24 +08:00
select FLASH_HAS_DRIVER_ENABLED
kconfig: drivers: flash: Remove redundant FLASH dependencies These are from source'ing a file within an 'if FLASH', and then adding another 'depends on FLASH' within it. 'if FOO' is just shorthand for adding 'depends on FOO' to each item within the 'if'. There are no "conditional includes" in Kconfig, so 'if FOO' has no special meaning around a 'source'. Conditional includes wouldn't be possible, because an 'if' condition could include (directly or indirectly) forward references to symbols not defined yet. Tip: When adding a symbol, check its dependencies in the menuconfig ('ninja menuconfig', then / to jump to the symbol). The menuconfig also shows how the file with the symbol got included, so if you see duplicated dependencies, it's easy to hunt down where they come from. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-03-07 12:45:23 +08:00
depends on SPI
drivers: flash: add a generic spi nor flash driver This driver is inspired from the w25qxxdv SPI NOR flash driver which was already implementing the CFI (Common Flash Interface) for its purpose. To handle other NOR flash a flash id table (as Linux do) which contains the geometry for a few SPI NOR flash based on their JEDEC ID has been introduced. We currently support the following flash: - W25Q80 - W25Q16 - W25Q32 - S25FL216K - MX25UM512 The read and write functions are able to handle more then one page at a time and return the number of bytes read or write. Also because every NOR flash expect to disable the write protection before writing or erasing, the write enable command is now part of the write and erase functions. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-12 23:36:24 +08:00
if SPI_NOR
config SPI_NOR_INIT_PRIORITY
int
default 80
help
Device driver initialization priority.
Device is connected to SPI bus, it has to
be initialized after SPI driver.
drivers: flash: spi-nor: update towards device-tree support Use the jedec,spi-nor bindings to configure as much of the device as can be expressed by device tree. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-01-29 02:32:26 +08:00
config SPI_NOR_CS_WAIT_DELAY
int "Delay time in us"
drivers: flash: add a generic spi nor flash driver This driver is inspired from the w25qxxdv SPI NOR flash driver which was already implementing the CFI (Common Flash Interface) for its purpose. To handle other NOR flash a flash id table (as Linux do) which contains the geometry for a few SPI NOR flash based on their JEDEC ID has been introduced. We currently support the following flash: - W25Q80 - W25Q16 - W25Q32 - S25FL216K - MX25UM512 The read and write functions are able to handle more then one page at a time and return the number of bytes read or write. Also because every NOR flash expect to disable the write protection before writing or erasing, the write enable command is now part of the write and erase functions. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-12 23:36:24 +08:00
default 0
help
kconfig: Global whitespace/consistency cleanup Clean up space errors and use a consistent style throughout the Kconfig files. This makes reading the Kconfig files more distraction-free, helps with grepping, and encourages the same style getting copied around everywhere (meaning another pass hopefully won't be needed). Go for the most common style: - Indent properties with a single tab, including for choices. Properties on choices work exactly the same syntactically as properties on symbols, so not sure how the no-indentation thing happened. - Indent help texts with a tab followed by two spaces - Put a space between 'config' and the symbol name, not a tab. This also helps when grepping for definitions. - Do '# A comment' instead of '#A comment' I tweaked Kconfiglib a bit to find most of the stuff. Some help texts were reflowed to 79 columns with 'gq' in Vim as well, though not all, because I was afraid I'd accidentally mess up formatting. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-01 17:24:07 +08:00
This is the wait delay (in us) to allow for CS switching to take effect
drivers: flash: add a generic spi nor flash driver This driver is inspired from the w25qxxdv SPI NOR flash driver which was already implementing the CFI (Common Flash Interface) for its purpose. To handle other NOR flash a flash id table (as Linux do) which contains the geometry for a few SPI NOR flash based on their JEDEC ID has been introduced. We currently support the following flash: - W25Q80 - W25Q16 - W25Q32 - S25FL216K - MX25UM512 The read and write functions are able to handle more then one page at a time and return the number of bytes read or write. Also because every NOR flash expect to disable the write protection before writing or erasing, the write enable command is now part of the write and erase functions. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-12 23:36:24 +08:00
drivers/spi_nor: allow application control of flash layout page size The driver historically used the erase block size (64 KiBy) as the page size. There are other viable "sector" sizes, and for some applications this one may be too large. Allow the application to specify the desired flash page size. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-07-21 07:47:11 +08:00
config SPI_NOR_FLASH_LAYOUT_PAGE_SIZE
int "Page size to use for FLASH_LAYOUT feature"
default 65536
help
When CONFIG_FLASH_PAGE_LAYOUT is used this driver will support
that API. By default the page size corresponds to the block
size (65536). Other options include the 32K-byte erase size
(32768), and the sector size (4096).
drivers: spi_nor: support deep-power-down mode Add internal API to enter and exit deep power-down mode. Add Kconfig option to return to DPD whenever device is not active. When device power management becomes more mature it should be possible to implement it, which would allow use of DPD without having to enter and exit DPD between consecutive transactions. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-10-28 01:57:09 +08:00
config SPI_NOR_IDLE_IN_DPD
bool "Use Deep Power-Down mode when flash is not being accessed."
help
Where supported deep power-down mode can reduce current draw
to as little as 0.1% of standby current. However it takes
some milliseconds to enter and exit from this mode.
Select this option for applications where device power
management is not enabled, the flash remains inactive for
long periods, and when used the impact of waiting for mode
enter and exit delays is acceptable.
drivers: flash: add a generic spi nor flash driver This driver is inspired from the w25qxxdv SPI NOR flash driver which was already implementing the CFI (Common Flash Interface) for its purpose. To handle other NOR flash a flash id table (as Linux do) which contains the geometry for a few SPI NOR flash based on their JEDEC ID has been introduced. We currently support the following flash: - W25Q80 - W25Q16 - W25Q32 - S25FL216K - MX25UM512 The read and write functions are able to handle more then one page at a time and return the number of bytes read or write. Also because every NOR flash expect to disable the write protection before writing or erasing, the write enable command is now part of the write and erase functions. Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com> Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-12 23:36:24 +08:00
endif # SPI_NOR