Armbianmonitor: http://ix.io/4cYv
Hi
I'm trying (and failing miserably) to achieve a simple goal with my Orange Pi 3 LTS: to have pin PD15 set as 'output-high' on startup.
From reading the documentation, it seems the logical way to go about this task is to create a custom DT Overlay so that's what I set out to do.
Based on the Armbian documentation and various examples I found online, I created the following sun50i-h6-gpio-pwr-status.dts file under /boot/overlay-user :
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun50i-h6";
fragment@0 {
target = <&pio>;
__overlay__ {
gpio_pwr_pin: gpio_pwr_pin {
pins = "PD15";
function = "gpio_out";
output-high;
};
};
};
fragment@1 {
target = <&gpio_pwr_pin>;
__overlay__ {
pinctrl-names = "default";
pinctrl-1 = <&gpio_pwr_pin>;
cs-gpios = <0>, <&pio 3 15 0>; /* PD15 */
};
};
};
I then ran:
> sudo armbian-add-overlay sun50i-h6-gpio-pwr-status.dts
(* more on the 'sun50i-h6' suffix below)
And this seemed to work without errors and created a corresponding *.dtso file in the same folder.
I then edited armbianEnv.txt to include the new custom overlay by adding the line:
user_overlays=sun50i-h6-gpio-pwr-status
Rebooted the SoC as instructed and although it booted up as usual, Pin PD15 stays 'off' and isn't set to 'output-high' (or even just 'output') at any point.
I tried troubleshooting as best I can for several days now by going over forum posts and reviewing the bootup warning and error messages but nothing seemed out of order.]
Also, while I understand the main 'overlay' folder (/boot/dtb/allwinner/overlay) isn't meant for placing custom overlays, I nevertheless I tried repeating the process there too, but still no go.
I also tried to repeat the process without the 'sun50i-h6' suffix in the file name and in the armbian.Env entry, but that didn't change the outcome (i.e. pin PD15 remains 'off' during and after bootup).
I can't even tell if this custom overlay is loading and not working or not loading to begin with.
My guess there's some mistake in the custom dts file above but I can't find it and would appreciate some help in getting this to work.
Thanks!
