orangepi-zero serial (not the debug port) now working
Daniel Braniss
danny at cs.huji.ac.il
Fri Dec 15 16:13:55 UTC 2017
> On 15 Dec 2017, at 18:04, Emmanuel Vadot <manu at bidouilliste.com> wrote:
>
> On Fri, 15 Dec 2017 17:51:55 +0200
> Daniel Braniss <danny at cs.huji.ac.il <mailto:danny at cs.huji.ac.il>> wrote:
>
>> hi,
>> after a week of failing to get the usb to work, this little change to the dts file did the trick:
>
> USB ?
long version:
my first attempt at using the serial port failed, I then tried using a serial to usb (which works fine on RPI and amd64)
on all my allwinners and failed.
>
>> --- /r+d/vanilla/12/sys/gnu/dts/arm/sun8i-h2-plus-orangepi-zero.dts 2017-12-02 16:29:32.134790000 +0200
>> +++ ./sun8i-h2-plus-orangepi-zero.dts 2017-12-15 17:34:25.742903000 +0200
>> @@ -164,7 +164,7 @@
>> &uart1 {
>> pinctrl-names = "default";
>> pinctrl-0 = <&uart1_pins>;
>> - status = "disabled";
>> + status = "okay";
>> };
>>
>> &uart2 {
>>
>> and now I have a working /dev/ttyu1!
>> BTW, this is with a resent CURRENT.
>>
>> danny
>
> This is expected, node aren't enabled if there is nothing using it on
> the board.
> For something like that you might want to look at overlays instead of
> modifying main dtb.
this was a proof of concept, i will try doing the overlay thingy later.
thanks
danny
>
> --
> Emmanuel Vadot <manu at bidouilliste.com <mailto:manu at bidouilliste.com>> <manu at freebsd.org <mailto:manu at freebsd.org>>
More information about the freebsd-arm
mailing list