allanmac Posted Tuesday at 05:37 PM Share Posted Tuesday at 05:37 PM In my quest to use an ODROID N2 as a time server, I had to figure out how to enable UART_EE_A. Device trees for other boards sometimes enable UART A in the base device tree but the ODROID N2/N2+ does not. I am not sure why device trees don't fully define devices like UART_A and then just leave them disabled instead of partially defining them with missing "pinctrl" entries (as in the N2 device tree). Anyway, I've attached `meson-g12b-odroid-uart-ee-a.dtso` as an example of how to enable UART_EE_A. Additionally: The DT overlays for Meson UARTs (e.g. `/boot/dtb/amlogic/overlay/meson-uartA.dtbo`) are not compatible with the N2. It's a source of confusion for new users. I noticed a problem in the current `armbian-config` scripting. I originally named the overlay as `meson-g12b-odroid-uartA` but selecting it would also enable `meson-uartA`. Probably a regexp/sed issue. meson-g12b-odroid-uart-ee-a.dtso 0 Quote Link to comment Share on other sites More sharing options...
allanmac Posted Wednesday at 03:48 PM Author Share Posted Wednesday at 03:48 PM The PPS (`pps-gpio` driver) overlay is attached. meson-g12-pps-gpiox-16.dtso 0 Quote Link to comment Share on other sites More sharing options...
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