Date: Thu, 07 Apr 2016 14:43:42 -0600 From: Ian Lepore <ian@freebsd.org> To: Peter =?ISO-8859-1?Q?Ankerst=E5l?= <peter@pean.org>, freebsd-arm@freebsd.org Subject: Re: PPS input on GPIO pin RPI2. Message-ID: <1460061822.1091.314.camel@freebsd.org> In-Reply-To: <56FCEE15.60109@pean.org> References: <56FCEE15.60109@pean.org>
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On Thu, 2016-03-31 at 11:29 +0200, Peter Ankerstål wrote: > (Sorry for sort of double posting) > > Hi! > > I asked a question on the stable@ list a few weeks ago about having > PPS > input on a generic GPIO-pin on the RPI2. I received some positive > feedback that this should be easy to implement but have heard nothing > since. Today I found out about the arm-list and thought this maybe > was a > better place for this question. > > > Background: > https://lists.freebsd.org/pipermail/freebsd-stable/2016-March/084288. > html > > Similar question: > https://lists.freebsd.org/pipermail/freebsd-questions/2014-July/25905 > 5.html > > /Peter. > Sorry for the slow response on this, just wanted to let you know that work on this is finally underway. The big interrupt infrastructure changes I was waiting for were committed a few days ago. I started writing the pps driver and ran into some more "we have no way to do this" problems which we're building even more new infrastructure for now. :) I have no firm ETA, but I did get enough of a proof-of-concept hacked together yesterday that I was able to get pps input working on a gpio pin on a wandboard (and that work will generalize to any of the arm boards that use FDT data pretty quickly), so it shouldn't be much longer. -- Ian
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