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>>



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