Date: Thu, 30 Mar 2023 08:27:28 -0700 From: bob prohaska <fbsd@www.zefox.net> To: Steve Rikli <sr@genyosha.net> Cc: Marcin Cieslak <saper@saper.info>, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: Boot stops at loader after build/install cycle Message-ID: <20230330152728.GA79440@www.zefox.net> In-Reply-To: <ZCThLNuAuBhSSH1h@dragon.home.genyosha.net> References: <20230327164919.GA65182@www.zefox.net> <CANCZdfrwUXgL8K-ZXMS770oM7W8WyVEPSQt9acbUhFfk1D032A@mail.gmail.com> <ZCHV57OZuXxI5xu3@dragon.home.genyosha.net> <20230327183055.GB65182@www.zefox.net> <44509923-0218-5no7-42pp-90ss0sns9457@fncre.vasb> <20230329164845.GA75320@www.zefox.net> <or45n234-96pp-9sn7-2qpn-s2np14776oo3@fncre.vasb> <ZCThLNuAuBhSSH1h@dragon.home.genyosha.net>
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On Wed, Mar 29, 2023 at 06:09:00PM -0700, Steve Rikli wrote: > On Thu, Mar 30, 2023 at 12:24:13AM +0000, Marcin Cieslak wrote: > > > > The characters look too regular to me, just like a normal terminal > > codes, not a line noise. I test the device now powered from the > > same USB hub as the USB-serial converter. Rockchip needs 1500000 bps > > console, pretty fest. > > OK, then let's assume your serial cables & hoods etc. are OK for the > moment. What does serial console config on the rpi look like? > > When I specified the rpi4 serial console speed in the config to match my > serial terminal server, rather than let it "float" (default 9600), my > loader interruptions stopped, and no more stray characters on the serial > console after boot either. > > > Also, uboot autoboot prompt never gets interrupted. > > > > I also noticed that "resizewin" complains about not getting > > information about the terminal upon login on the serial console > > while being in the vt(4) text mode. > > > > Looks like the bootloader tries to send/receives some terminal control > > sequences and this fails, interupting the autoboot. > > It may be something along those lines. When I was getting loader stops > during reboot on my rpi4, my guess was the default FreeBSD speed 9600 > vs. my serial terminal server setting of 115200 was causing stray > characters on the line during boot, loader interpretted that as a > keystroke, so it stopped. Where are you setting the serial console to 9600 baud? AIUI the Pi defaults to 115200, can it be set in config.txt? Thanks for writing! bob prohaska
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