diff options
Diffstat (limited to 'drivers/mtd/spi/Kconfig')
| -rw-r--r-- | drivers/mtd/spi/Kconfig | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig index ac6d09f928..4f0c040214 100644 --- a/drivers/mtd/spi/Kconfig +++ b/drivers/mtd/spi/Kconfig @@ -1,3 +1,5 @@ +menu "SPI Flash Support" + config DM_SPI_FLASH bool "Enable Driver Model for SPI flash" depends on DM && DM_SPI @@ -22,3 +24,49 @@ config SPI_FLASH_SANDBOX 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. + +config SPI_FLASH + bool "Legacy SPI Flash Interface support" + help + Enable the legacy SPI flash support. This will include basic + standard support for things like probing, read / write, and + erasing through cmd_sf interface. + + If unsure, say N + +config SPI_FLASH_BAR + bool "SPI flash Bank/Extended address register support" + depends on SPI_FLASH + 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. + +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 + +config SPI_FLASH_MTD + bool "SPI Flash MTD support" + depends on SPI_FLASH + 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 + +endmenu # menu "SPI Flash Support" |
