Date: Thu, 2 Aug 2018 19:29:44 +0200 From: Per olof Ljungmark <peo@nethead.se> To: Diane Bruce <db@db.net> Cc: freebsd-arm@freebsd.org Subject: Re: rpi3 and Adafruit GPS Hat Message-ID: <69777450-a532-3f00-c2ed-426d20a6bf0e@nethead.se> In-Reply-To: <20180718170157.GA40221@night.db.net> References: <47f49a55-66b0-1c02-4530-4701a3bd0c43@nethead.se> <20180718170157.GA40221@night.db.net>
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On 7/18/18 7:01 PM, Diane Bruce wrote: > On Wed, Jul 18, 2018 at 05:10:16PM +0200, Per olof Ljungmark wrote: >> Being a complete newbie to arm I thought a nice project would be to >> build a NTP server with the parts in the subject line. >> >> Unfortunately I have almost no idea where to start, it seems FreeBSD for >> arm have shifted around quite a bit, almost none of the googled pages I >> find has relevance, and to add insult to injury, the Pi project >> apparently shifted the serial ports around for the Pi3. >> >> What I need to achieve, >> >> - Stop the kernel to use the uart for console output (I have ethernet >> and HDMI connected) > > No need. > > change your config.txt > > #dtoverlay=pi3-disable-bt > device_tree_address=0x4000 > kernel=u-boot.bin > enable_uart=1 > > This moves the console port to the less capable micro uart port > this will free up the good uart (the pl011 device) as /dev/ttyu0 > > Remove the pi3-disable-dt in config.txt > enable_uart=1 is needed. But would this move uart0 to pin 14 & 15? It moves the serial console to uart1 which is fine bit if I want to talk to the hat I need uart0 on pins 14 and 15.
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