Hello everyone
I have some trouble with device tree from Mango Pi. There is no overlays in Mango Pi D1: armbian-add-overlay file.dts => output: D1 is not support for overlays.
When start board, command dmesg | grep serial output: @2500000.serial and @2500400.serial. It's okay.
When I decompiled sun20i-d1-nezha.dtb file I saw that serial@2500000 and serial@2500400 status = "okay", other serials status = "disable". There are serials: 2500000,2500400,2500800,2500c00,2501000,2501400.
So I try, for example, to change status for serial@2500800 from disable to okay. After dtc -I dts -O dtb to the /boot/dtb/allwiner then I did reboot and dmesg | grep serial output only serial@2500000 and serial@2500400, there is no 2500800.
What's the problem?:(