esp-idf/components/spi_flash/Kconfig
Angus Gratton 670733df9f spi_flash: Abort on writes to dangerous regions (bootloader, partition table, app)
Can be disabled or made into a failure result in kconfig if needed.
2017-11-03 15:52:27 -07:00

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menu "SPI Flash driver"
config SPI_FLASH_ENABLE_COUNTERS
bool "Enable operation counters"
default 0
help
This option enables the following APIs:
- spi_flash_reset_counters
- spi_flash_dump_counters
- spi_flash_get_counters
These APIs may be used to collect performance data for spi_flash APIs
and to help understand behaviour of libraries which use SPI flash.
config SPI_FLASH_ROM_DRIVER_PATCH
bool "Enable SPI flash ROM driver patched functions"
default y
help
Enable this flag to use patched versions of SPI flash ROM driver functions.
This option is needed to write to flash on ESP32-D2WD, and any configuration
where external SPI flash is connected to non-default pins.
choice SPI_FLASH_WRITING_DANGEROUS_REGIONS
bool "Writing to dangerous flash regions"
default SPI_FLASH_WRITING_DANGEROUS_REGIONS_ABORTS
help
SPI flash APIs can optionally abort or return a failure code
if erasing or writing addresses that fall at the beginning
of flash (covering the bootloader and partition table) or that
overlap the app partition that contains the running app.
It is not recommended to ever write to these regions from an IDF app,
and this check prevents logic errors or corrupted firmware memory from
damaging these regions.
Note that this feature *does not* check calls to the esp_rom_xxx SPI flash
ROM functions. These functions should not be called directly from IDF
applications.
config SPI_FLASH_WRITING_DANGEROUS_REGIONS_ABORTS
bool "Aborts"
config SPI_FLASH_WRITING_DANGEROUS_REGIONS_FAILS
bool "Fails"
config SPI_FLASH_WRITING_DANGEROUS_REGIONS_ALLOWED
bool "Allowed"
endchoice
endmenu