Pine64-LTS and UART ports

[Kaya Saman]

On 6/24/19 3:45 PM, Milan Obuch wrote:
> On Mon, 24 Jun 2019 15:34:43 +0100
> Kaya Saman <kayasaman at optiplex-networks.com> wrote:
>
>> On 6/24/19 12:30 PM, Milan Obuch wrote:
> [ snip ]
>
> [snip]
> Well, I tested it on 13-CURRENT, so there could be some differences...
> anyway, there is a helper script you could invoke directly, again,
> tested on 13-CURRENT:
>
> /usr/src/sys/tools/fdt/make_dtbo.sh /usr/src/sys /usr/src/sys/dts/arm64/overlays/sun50i-a64-uart2.dtso /tmp
>
> Hope this helps.
>
> Milan


Thanks Milan,


I tried the dtc method - using this example from the man page:


dtc -@ -O dtb -I dts -o device_overlay.dtbo device_overlay.dts


Actual command used: dtc -@ -O dtb -I dts -o sun50i-a64-uart2.dtbo 
sun50i-a64-uart2.dtso



then copied the resulting dtbo file into the /boot/dtb/overlays 
directory, and added the entry into  /boot/loader.conf then rebooted. 
The result was nothing happened :-( no uart2 in the dmesg log at all and 
no extra ttyu(x) either


I've just also attempted: /usr/src/sys/tools/fdt/make_dtbo.sh 
/usr/src/sys /usr/src/sys/dts/arm64/overlays/sun50i-a64-uart2.dtso /tmp


then copied the .dtbo file into /boot/dtb/overlays and rebooted. Again 
nothing??


Maybe there is a difference between 12-RELEASE and 13-CURRENT?


Regards,


Kaya