Neo2 SPI Interface

[Rob Gillan]

Hello,

Just started on the latest Neo2 Ubuntu (Armbian_5.34.171121_Nanopineo2_Ubuntu_xenial_next_4.13.14) as we were tired trying to get around the challenges of the Ubuntu Core provided by FriendlyARM.   Have enabled SPI we think (armbian-config->system/hardware/spi-spidev) and rebooted, but even after full power cycle we don't see anything in /dev/spi*.   Is there anything special/additional we need to do to get SPI working (which we know does from our Ubuntu Core build).

 

Thanks

Rob

[Rob Gillan]

and in /boot/armbianEnv.txt:

 

root@nanopineo2:/boot/dtb/allwinner/overlay# cat /boot/armbianEnv.txt

verbosity=1

console=both

overlay_prefix=sun50i-h5

overlays=pps-gpio spi-spidev usbhost1 usbhost2

rootdev=UUID=75d8ed70-73a7-43cc-8b06-81f884b6b711

rootfstype=ext4

usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u

 

after armbian-config, and it looks like spi-spidev should be there.

[Rob Gillan]

OK, digging through some other H3/SPI posts here, it seems that the device overlay for SPI needs to know what bus to enable, so putting the following line:

 

param_spidev_spi_bus=0

 

in /boot/armbianEnv.txt and rebooting did the trick