Unable to use SPI on Banana Pi M2 Pro

[lonelyhero]

Armbianmonitor:

https://paste.armbian.com/egisahatud

Hi !

I was trying to use SPI communication with Banana Pi M2 Pro.

 

I am currently using Armbian 26.5.1 and I realized that I cannot find spidev from /boot/dev/ .

 

I tried loading all dtbo files from armbian-config but still I can't get SPI.

 

Is there something that I haven't check yet?

[kris777]

maybe an entry in the file: /boot/armbianEnv.txt  

entry / edition: 

overlays=meson-sm1-jethome-jethub-j200-spi

reboot

If this doesn't work, you have to ask e.g. AI / Gemini if you are not a programmer...

That's what he suggested to me, but will it work?

...................

sudo apt update && sudo apt install -y device-tree-compiler

nano bpi-spidev.dts

Edit and add  entry:

...............

/dts-v1/;
/plugin/;

/ {
    compatible = "amlogic,sm1";

    fragment@0 {
        target = <&spifc>;
        __ some_status__ {
            status = "okay";
        };
    };

    fragment@1 {
        target-path = "/soc/spi@14000";
        __overlay__ {
            status = "okay";
            #address-cells = <1>;
            #size-cells = <0>;

            spidev@0 {
                compatible = "rohm,dh2228fv";
                reg = <0>;
                spi-max-frequency = <10000000>;
                status = "okay";
            };
        };
    };
};
.................

save Ctrl+X ...enter

compile:

sudo dtc -@ -I dts -O dtb -o /boot/dtb/amlogic/overlay/meson-bpi-spidev.dtbo bpi-spidev.dts

edit:

sudo nano /boot/armbianEnv.txt

entry:

overlays=meson-bpi-spidev

sudo reboot

Check:

ls /dev/spi*

but these are just suggestions, I don't know if it will work for you?

Edited 34 minutes ago by kris777