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u-boot/drivers/mtd/spi/Kconfig

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sf: Add Kconfig menu entry Added Kconfig menu ... endmenu enties for spi flash suppor Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-27 17:09:36 +00:00
menu "SPI Flash Support"
dm: Expand and complete Kconfig in drivers/ Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-06 04:41:35 +00:00
config DM_SPI_FLASH
bool "Enable Driver Model for SPI flash"
dm: spi_flash: fix wrong dependency CONFIG_SPI does not exist in Kconfig in the first place, so the dependency "depends on DM && SPI" is never met, i.e., DM_SPI_FLASH can never be enabled (unless you ignore the dependency in an illegal way. See below.) Actually, some defconfigs such as socfpga_*_defconfig define CONFIG_DM_SPI_FLASH=y, but it never appears in the .config file because of this wrong dependency. On the other hand, all the Tegra boards enable DM_SPI_FLASH because config DM_SPI_FLASH default y silently ignores the dependency. Unfortunately, this style of CONFIG definition is abused everywhere in U-Boot, so we easily miss such a wrong dependency. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-03-31 03:47:52 +00:00
depends on DM && DM_SPI
mtd: spi: Kconfig: Imply SPI_FLASH if DM_SPI_FLASH DM_SPI_FLASH should require spi flash interface code for dm version, so imply SPI_FLASH core by default if any board enabled DM_SPI_FLASH. This overcome the explicit enablement of CONFIG_SPI_FLASH on respective boards when DM_SPI_FLASH being used. Acked-by: Vignesh Raghavendra <vigneshr@ti.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-16 12:37:24 +00:00
imply SPI_FLASH
dm: Expand and complete Kconfig in drivers/ Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-06 04:41:35 +00:00
help
Enable driver model for SPI flash. This SPI flash interface
(spi_flash_probe(), spi_flash_write(), etc.) is then
implemented by the SPI flash uclass. There is one standard
SPI flash driver which knows how to probe most chips
supported by U-Boot. The uclass interface is defined in
include/spi_flash.h, but is currently fully compatible
with the old interface to avoid confusion and duplication
during the transition parent. SPI and SPI flash must be
enabled together (it is not possible to use driver model
for one and not the other).
sandbox: Move CONFIG_SPI_FLASH_SANDBOX to Kconfig Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-06 20:19:06 +00:00
config SPI_FLASH_SANDBOX
bool "Support sandbox SPI flash device"
depends on SANDBOX && DM_SPI_FLASH
help
Since sandbox cannot access real devices, an emulation mechanism is
provided instead. Drivers can be connected up to the sandbox SPI
bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this
device. Typically the contents of the emulated SPI flash device is
stored in a file on the host filesystem.
sf: Add Kconfig menu entry Added Kconfig menu ... endmenu enties for spi flash suppor Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-27 17:09:36 +00:00
sf: Kconfig: Update SPI_FLASH entry Updated SPI_FLASH entry on Kconfig with depends on and along with config help description. Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-28 19:29:36 +00:00
config SPI_FLASH
mtd: spi: Kconfig: Update CONFIG_SPI_FLASH 1) CONFIG_SPI_FLASH is not just a legacy code, but it has common core code which handle both dm and non-dm spi flash code. So fix the info text to make it clear globally. 2) Since it's flash core it shouldn't depends on legacy SPI, so remove the 'depends on SPI' Cc: Vignesh R <vigneshr@ti.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-02-09 12:15:42 +00:00
bool "SPI Flash Core Interface support"
mtd: spi: Switch to new SPI NOR framework Switch spi_flash_* interfaces to call into new SPI NOR framework via MTD layer. Fix up sf_dataflash to work in legacy way. And update sandbox to use new interfaces/definitions Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-05 05:59:23 +00:00
select SPI_MEM
sf: Kconfig: Update SPI_FLASH entry Updated SPI_FLASH entry on Kconfig with depends on and along with config help description. Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-28 19:29:36 +00:00
help
mtd: spi: Kconfig: Update CONFIG_SPI_FLASH 1) CONFIG_SPI_FLASH is not just a legacy code, but it has common core code which handle both dm and non-dm spi flash code. So fix the info text to make it clear globally. 2) Since it's flash core it shouldn't depends on legacy SPI, so remove the 'depends on SPI' Cc: Vignesh R <vigneshr@ti.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-02-09 12:15:42 +00:00
Enable the SPI flash Core support. This will include basic
sf: Kconfig: Update SPI_FLASH entry Updated SPI_FLASH entry on Kconfig with depends on and along with config help description. Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-28 19:29:36 +00:00
standard support for things like probing, read / write, and
erasing through cmd_sf interface.
If unsure, say N
Convert CONFIG_SF_DEFAULT_* to Kconfig This converts the following to Kconfig: CONFIG_SF_DEFAULT_BUS CONFIG_SF_DEFAULT_CS CONFIG_SF_DEFAULT_MODE CONFIG_SF_DEFAULT_SPEED I use moveconfig script and then manual check on generated u-boot.cfg to solve the remaining issue. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-27 14:20:36 +00:00
config SF_DEFAULT_BUS
int "SPI Flash default bus identifier"
depends on SPI_FLASH || DM_SPI_FLASH
default 0
help
The default bus may be provided by the platform
to handle the common case when only a single serial
flash is present on the system.
config SF_DEFAULT_CS
int "SPI Flash default Chip-select"
depends on SPI_FLASH || DM_SPI_FLASH
default 0
help
The default chip select may be provided by the platform
to handle the common case when only a single serial
flash is present on the system.
config SF_DEFAULT_MODE
hex "SPI Flash default mode (see include/spi.h)"
depends on SPI_FLASH || DM_SPI_FLASH
default 3
help
The default mode may be provided by the platform
to handle the common case when only a single serial
flash is present on the system.
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-02-27 14:36:44 +00:00
Not used for boot with device tree; the SPI driver reads
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-03 23:55:18 +00:00
speed and mode from plat values computed from
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-02-27 14:36:44 +00:00
available node.
Convert CONFIG_SF_DEFAULT_* to Kconfig This converts the following to Kconfig: CONFIG_SF_DEFAULT_BUS CONFIG_SF_DEFAULT_CS CONFIG_SF_DEFAULT_MODE CONFIG_SF_DEFAULT_SPEED I use moveconfig script and then manual check on generated u-boot.cfg to solve the remaining issue. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-27 14:20:36 +00:00
config SF_DEFAULT_SPEED
int "SPI Flash default speed in Hz"
depends on SPI_FLASH || DM_SPI_FLASH
default 1000000
help
The default speed may be provided by the platform
to handle the common case when only a single serial
flash is present on the system.
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-02-27 14:36:44 +00:00
Not used for boot with device tree; the SPI driver reads
dm: treewide: Rename 'platdata' variables to just 'plat' We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-03 23:55:18 +00:00
speed and mode from plat values computed from
dm: spi: Read default speed and mode values from DT This patch update the behavior introduced by commit 96907c0fe50a ("dm: spi: Read default speed and mode values from DT") In case of DT boot, don't read default speed and mode for SPI from CONFIG_* but instead read from DT node. This will make sure that boards with multiple SPI/QSPI controllers can be probed at different bus frequencies and SPI modes. Remove also use in boards of the value speed=0 (no more supported) for ENV in SPI by using CONFIG_ENV_SPI_MAX_HZ=0. DT values will be always used when available (full DM support of SPI slave with available DT node) even if speed and mode are requested; for example in splash screen support (in splash_sf_read_raw) or in SPL boot (in spl_spi_load_image). The caller of spi_get_bus_and_cs() no more need to force speed=0. But the current behavior don't change if the SPI slave is not present (device with generic driver is created automatically) or if platdata is used (CONFIG_OF_PLATDATA). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Jagan Teki <jagan@amarulasolutions.com>
2019-02-27 14:36:44 +00:00
available node.
Convert CONFIG_SF_DEFAULT_* to Kconfig This converts the following to Kconfig: CONFIG_SF_DEFAULT_BUS CONFIG_SF_DEFAULT_CS CONFIG_SF_DEFAULT_MODE CONFIG_SF_DEFAULT_SPEED I use moveconfig script and then manual check on generated u-boot.cfg to solve the remaining issue. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-27 14:20:36 +00:00
mtd: spi: spi-nor-core: Add SFDP support Sync Serial Flash Discoverable Parameters (SFDP) parsing support from Linux. This allows auto detection and configuration of Flash parameters. Signed-off-by: Vignesh R <vigneshr@ti.com> Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by: Jagan Teki <jagan@openedev.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> #zynq-microzed
2019-02-05 05:59:20 +00:00
if SPI_FLASH
config SPI_FLASH_SFDP_SUPPORT
bool "SFDP table parsing support for SPI NOR flashes"
depends on !SPI_FLASH_BAR
help
Enable support for parsing and auto discovery of parameters for
SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
tables as per JESD216 standard.
mtd: spi-nor-core: Rework hwcaps selection The spi-mem layer provides a spi_mem_supports_op() function to check whether a specific operation is supported by the controller or not. This is much more accurate than the hwcaps selection logic based on SPI_{RX,TX}_ flags. Rework the hwcaps selection logic to use spi_mem_supports_op(). To make sure the build doesn't break for boards not using CONFIG_DM_SPI, add a simple SPI_{RX,TX}_ based hwcaps selection logic in spi-mem-nodm similar to spi_mem_default_supports_op(). This change is only compile-tested. To avoid SPL size problems on the x530 board, the old hwcaps selection is still kept around. Leaving the code in-place was getting difficult to read and understand, so the code is restructured to have it all in one isolated function. As a result of this, the parameter hwcaps to spi_nor_setup() is no longer needed. Remove it. Based on the Linux commit c76f5089796a (mtd: spi-nor: Rework hwcaps selection for the spi-mem case, 2019-08-06) Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2021-06-25 19:17:14 +00:00
config SPI_FLASH_SMART_HWCAPS
bool "Smart hardware capability detection based on SPI MEM supports_op() hook"
default y
help
Enable support for smart hardware capability detection based on SPI
MEM supports_op() hook that lets controllers express whether they
can support a type of operation in a much more refined way compared
to using flags like SPI_RX_DUAL, SPI_TX_QUAD, etc.
mtd: spi-nor-core: Perform a Soft Reset on shutdown On probe, the SPI NOR core will put a flash in 8D-8D-8D mode if it supports it. But Linux as of now expects to get the flash in 1S-1S-1S mode. Handing the flash to Linux in Octal DTR mode means the kernel will fail to detect the flash. So, we need to reset to Power-on-Reset (POR) state before handing off the flash. A Software Reset command can be used to do this. One limitation of the soft reset is that it will restore state from non-volatile registers in some flashes. This means that if the flash was set to 8D mode in a non-volatile configuration, a soft reset won't help. This commit assumes that we don't set any non-volatile bits anywhere, and the flash doesn't have any non-volatile Octal DTR mode configuration. Since spi-nor-tiny doesn't (and likely shouldn't) have spi_nor_soft_reset(), add a dummy spi_nor_remove() for it that does nothing. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2021-06-25 19:17:24 +00:00
config SPI_FLASH_SOFT_RESET
bool "Software Reset support for SPI NOR flashes"
default n
help
Enable support for xSPI Software Reset. It will be used to switch from
Octal DTR mode to legacy mode on shutdown and boot (if enabled).
mtd: spi-nor-core: Perform a Soft Reset on boot When the flash is handed to us in a stateful mode like 8D-8D-8D, it is difficult to detect the mode the flash is in. One option is to read SFDP in all modes and see which one gives the correct "SFDP" signature, but not all flashes support SFDP in 8D-8D-8D mode. Further, even if you detect the mode of the flash via SFDP, you still have the problem of actually reading the ID. The Read ID command is not standardized across flash vendors. Flashes can have different dummy cycles needed for reading the ID. Some flashes even expect a 4-byte dummy address with the Read ID command. All this information cannot be obtained from the SFDP table. So, perform a Software Reset sequence before reading the ID and initializing the flash. A Soft Reset will bring back the flash in its default protocol mode assuming no non-volatile configuration was set. This will let us detect the flash even if ROM hands it to us in Octal DTR mode. To accommodate cases where there is more than one flash on a board, and only one of them needs a soft reset, failure to reset is not made fatal, and we still try to read ID if possible. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2021-06-25 19:17:25 +00:00
config SPI_FLASH_SOFT_RESET_ON_BOOT
bool "Perform a Software Reset on boot on flashes that boot in stateful mode"
depends on SPI_FLASH_SOFT_RESET
default n
help
Perform a Software Reset on boot to allow detecting flashes that are
handed to us in Octal DTR mode. Do not enable this config on flashes
that are not supposed to be handed to U-Boot in Octal DTR mode, even
if they _do_ support the Soft Reset sequence.
sf: Kconfig: Add SPI_FLASH_BAR entry Added SPI_FLASH_BAR entry on Kconfig with help description Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-29 18:02:17 +00:00
config SPI_FLASH_BAR
bool "SPI flash Bank/Extended address register support"
help
Enable the SPI flash Bank/Extended address register support.
Bank/Extended address registers are used to access the flash
which has size > 16MiB in 3-byte addressing.
mtd: spi-nor: add unlock all config option Provide an explicit configuration option to disable default "unlock all" of any flash chip which supports locking. It doesn't make sense to automatically unprotect the entire flash on each u-boot startup if the block protection bits are actually used. Traditionally, the unlock was there to be able to write to flash devices which powered-up with the block protection bits set. Over time this feature creeped into all flash devices which support locking. For a more detailed description and discussion see: https://lore.kernel.org/linux-mtd/20201203162959.29589-8-michael@walle.cc/ Keep things simple in u-boot and just provide a configration option to disable this behavior which can be set per board. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2020-12-09 09:53:25 +00:00
config SPI_FLASH_UNLOCK_ALL
bool "Unlock the entire SPI flash on u-boot startup"
default y
help
Some flashes tend to power up with the software write protection
bits set. If this option is set, the whole flash will be unlocked.
For legacy reasons, this option default to y. But if you intend to
actually use the software protection bits you should say n here.
arm: zynq: Move CONFIG_SF_DUAL_FLASH to defconfig Move the only use of CONFIG_SF_DUAL_FLASH to defconfig. This makes the associated topic_miamiplus.h header obsolete, so remove that as well. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-06-07 05:42:37 +00:00
config SF_DUAL_FLASH
bool "SPI DUAL flash memory support"
help
Enable this option to support two flash memories connected to a single
controller. Currently Xilinx Zynq qspi supports this.
sf: kconfig: add kconfig options for spi flashes Add kconfig options for various SPI flashes and use them in cm-fx6 defconfig. Cc: Jagan Teki <jteki@openedev.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2015-07-23 14:19:38 +00:00
config SPI_FLASH_ATMEL
bool "Atmel SPI flash support"
help
Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
config SPI_FLASH_EON
bool "EON SPI flash support"
help
Add support for various EON SPI flash chips (EN25xxx)
config SPI_FLASH_GIGADEVICE
bool "GigaDevice SPI flash support"
help
Add support for various GigaDevice SPI flash chips (GD25xxx)
spi: Kconfig: Create ISSI Kconfig entry Add ISSI to Kconfig to make it selectable via menuconfig. Also convert all current platforms. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-25 14:39:26 +00:00
config SPI_FLASH_ISSI
bool "ISSI SPI flash support"
help
Add support for various ISSI SPI flash chips (ISxxx)
sf: kconfig: add kconfig options for spi flashes Add kconfig options for various SPI flashes and use them in cm-fx6 defconfig. Cc: Jagan Teki <jteki@openedev.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2015-07-23 14:19:38 +00:00
config SPI_FLASH_MACRONIX
bool "Macronix SPI flash support"
help
Add support for various Macronix SPI flash chips (MX25Lxxx)
config SPI_FLASH_SPANSION
bool "Spansion SPI flash support"
help
Add support for various Spansion SPI flash chips (S25FLxxx)
config SPI_FLASH_STMICRO
bool "STMicro SPI flash support"
help
Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
config SPI_FLASH_SST
bool "SST SPI flash support"
help
Add support for various SST SPI flash chips (SST25xxx)
config SPI_FLASH_WINBOND
bool "Winbond SPI flash support"
help
Add support for various Winbond SPI flash chips (W25xxx)
sf: Add XMC xm25qh64a and xm25qh128a entries This patch adds support for 2 new XMC (Wuhan Xinxin Semiconductor Manufacturing Corp) SPI NOR chips. This support can be enabled by selecting the SPI_FLASH_XMC Kconfig option. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-08-06 14:33:19 +00:00
config SPI_FLASH_XMC
bool "XMC SPI flash support"
help
Add support for various XMC (Wuhan Xinxin Semiconductor
Manufacturing Corp.) SPI flash chips (XM25xxx)
sf: kconfig: add kconfig options for spi flashes Add kconfig options for various SPI flashes and use them in cm-fx6 defconfig. Cc: Jagan Teki <jteki@openedev.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2015-07-23 14:19:38 +00:00
endif
sf: Make 4K sector support configurable Make the support for 4K subpage I/O on a SPI NOR flash configurable. A board which requires the SPI NOR to be accessed in larger 32KiB or 64KiB pages can disable the 4K subpage support, but by default, the support for 4K subpage I/O is enabled. The functionality of this option is the same as CONFIG_MTD_SPI_NOR_USE_4K_SECTORS in Linux. This is extremely useful in case one uses UBI on a SPI NOR flash. UBI needs at least 15k EBs and can not work on a flash which uses 4k ones, so disabling the support for 4k subpages lets UBI work on such flash. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-08-02 23:28:56 +00:00
config SPI_FLASH_USE_4K_SECTORS
bool "Use small 4096 B erase sectors"
depends on SPI_FLASH
default y
help
Many flash memories support erasing small (4096 B) sectors. Depending
on the usage this feature may provide performance gain in comparison
to erasing whole blocks (32/64 KiB).
Changing a small part of the flash's contents is usually faster with
small sectors. On the other hand erasing should be faster when using
64 KiB block instead of 16 × 4 KiB sectors.
Please note that some tools/drivers/filesystems may not work with
4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
sf: Kconfig: Add SPI_FLASH_DATAFLASH entry Added SPI_FLASH_DATAFLASH entry on Kconfig with help description. data flash driver comes with good decription, hence moved the same on to kconfig help decription. Signed-off-by: Jagan Teki <jteki@openedev.com> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Haikun Wang <haikun.wang@freescale.com>
2015-07-01 15:52:19 +00:00
config SPI_FLASH_DATAFLASH
bool "AT45xxx DataFlash support"
depends on SPI_FLASH && DM_SPI_FLASH
help
Enable the access for SPI-flash-based AT45xxx DataFlash chips.
DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
in each chip, which may be used for double buffered I/O; but this
driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
Sometimes DataFlash is packaged in MMC-format cards, although the
MMC stack can't (yet?) distinguish between MMC and DataFlash
protocols during enumeration.
If unsure, say N
sf: Kconfig: Add SPI_FLASH_MTD entry Added SPI_FLASH_MTD entry on Kconfig with help description. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Heiko Schocher <hs@denx.de>
2015-06-27 17:12:35 +00:00
config SPI_FLASH_MTD
bool "SPI Flash MTD support"
mtd: spi: SPI_FLASH_MTD depends on MTD It is already the case that all defconfigs with SPI_FLASH_MTD also declare using MTD, but let's make this consistent and enforce it in Kconfig. Most of the time SPI_FLASH_MTD is used in conjunction with UBI, which already depends on MTD. Suggested-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2019-10-03 17:50:24 +00:00
depends on SPI_FLASH && MTD
sf: Kconfig: Add SPI_FLASH_MTD entry Added SPI_FLASH_MTD entry on Kconfig with help description. Signed-off-by: Jagan Teki <jteki@openedev.com> Acked-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Heiko Schocher <hs@denx.de>
2015-06-27 17:12:35 +00:00
help
Enable the MTD support for spi flash layer, this adapter is for
translating mtd_read/mtd_write commands into spi_flash_read/write
commands. It is not intended to use it within sf_cmd or the SPI
flash subsystem. Such an adapter is needed for subsystems like
UBI which can only operate on top of the MTD layer.
If unsure, say N
mtd: spi: Add a new option SPL_SPI_FLASH_MTD to Kconfig To allow SPI_FLASH_MTD being enabled separately in SPL we add a new option. The only user currently is the stm32mp15_basic board. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Acked-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-09-13 22:43:42 +00:00
config SPL_SPI_FLASH_MTD
bool "SPI flash MTD support for SPL"
depends on SPI_FLASH
help
Enable the MTD support for the SPI flash layer in SPL.
If unsure, say N
sf: Add Kconfig menu entry Added Kconfig menu ... endmenu enties for spi flash suppor Signed-off-by: Jagan Teki <jteki@openedev.com>
2015-06-27 17:09:36 +00:00
endmenu # menu "SPI Flash Support"
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