Hi, I am trying to use the SPI interface on the board GPIOs of a BananaPi M1+. I have started the latest version of Armbian available for this board (Armbian_19.11.6_Bananapi_bionic_current_5.4.8) and after the initial configuration the "/boot/armbianEnv.txt" file has the following added lines:
fdtfile=sun7i-a20-bananapi-m1-plus.dtb
overlays=spi-add-cs1 spi-spidev
param_spidev_spi_bus=0
I have rebooted but I am unable to use the spidevX.Y under the "/dev" folder. What am I missing?
NOTE: I have tried several combinations of values on the armbianEnv.txt configuration file (ie: using only overlays flags without the other ones, using only the spi-spidev flag, etc...), none succeeded.