Date: Wed, 31 Jul 2019 14:33:37 +0100 From: Kaya Saman <kayasaman@optiplex-networks.com> To: Ian Lepore <ian@freebsd.org>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Pine64-LTS overlays for uart ports fixed! Message-ID: <09afae63-3583-46bd-8911-82a0f0a3185f@optiplex-networks.com> In-Reply-To: <c601f08c4b3f1ad7beed5465622df37f583f844e.camel@freebsd.org> References: <5f30c425-60c6-d54a-9593-2584bcf25925@optiplex-networks.com> <c601f08c4b3f1ad7beed5465622df37f583f844e.camel@freebsd.org>
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On 7/31/19 1:42 AM, Ian Lepore wrote: > On Wed, 2019-07-31 at 00:46 +0100, Kaya Saman wrote: >> Hi guys, >> >> >> just wanted to say that I managed to fix the overlay issue for the uar= t >> ports. I just updated my bug report: >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239390 >> >> >> So, thanks to everyone who provided assistance and especially Milan fo= r >> the introduction to the 'overlay' system and the dtso file :-) >> >> >> Just need to figure out why PPS isn't working now, my GPS receiver is >> sending the information so it definitely is a system config issue - >> either wrong pin or something in the OS... (still looking into it). Al= so >> needing a driver in lcdproc for my Newhaven displays and after that th= e >> project will be perfect :-) :-) :-) >> >> >> Best Regards, >> >> >> Kaya >> >> > Is the GPS receiver delivering the pps signal on one of the uart pins > such as cts? If it's using cts, you probably need this change to your > overlay: > > --- sun50i-a64-uart4.dts.orig 2019-07-30 18:35:19.188762000 -0600 > +++ sun50i-a64-uart4.dts 2019-07-30 18:37:02.015479000 -0600 > @@ -30,7 +30,7 @@ > target =3D <&uart4>; > __overlay__ { > pinctrl-names =3D "default"; > - pinctrl-0 =3D <&uart4_pins>; > + pinctrl-0 =3D <&uart4_pins &uart4_rts_cts_pins>; > status =3D "okay"; > }; > }; > > You may also need to set sysctl dev.uart.4.pps_mode=3D1 for CTS, in > /etc/sysctl.conf. > > If it's using some other pin such as RI or CD, there is no pre-written > pinctrl entry for it in those overlays you found, and some more > research into how to add the right pinctrl nodes will be needed. > > -- Ian > Bingo!!! :-) :-) Thank you so much Ian..... I am seeing this: gpsd:PROG: PPS:/dev/gps1 Assert cycle:=C2=A0 999973, duration:=C2=A0 7999= 77 @=C2=A0=20 1564579823.472659791 gpsd:PROG: PPS:/dev/gps1 Assert rejected missing last_fixtime Perfect ;-) I think I need to add pps_mode=3D0x11 or 17 in dec. as the pulse is inver= ted. This setup was working previously using a Prolific Serial to USB adapter=20 for testing purposes as of course the USB introduces high latency. Time for testing and analysis :-) Best Regards, Kaya
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