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- menu "Example Configuration"
- config SDIO_DAT2_DISABLED
- bool "Disable the DAT2 in SDIO slave"
- default n
- help
- SDIO slave DAT pin is unfortunately the same pin as MTDI, which
- controls the flash power voltage. For 3.3v flash devkits / modules /
- kits, it conflicts with the DAT2 pullups required by the
- specification.
- This disables the peripheral input from the DAT2 so that we can work
- in 1-bit mode when DAT2 is floating (pulled down). 4-bit mode is
- therefore unavailable.
- endmenu
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