Re: port-evbarm/54696: Kernel panic in bus_dma.c on Raspberry Pi 3B/3B+

[sc.dying%gmail.com@localhost]

The following reply was made to PR port-arm/54696; it has been noted by GNATS.

From: sc.dying%gmail.com@localhost
To: gnats-bugs%NetBSD.org@localhost, gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost,
 dhop%nwlink.com@localhost, Michael van Elst <mlelstv%serpens.de@localhost>
Cc: 
Subject: Re: port-evbarm/54696: Kernel panic in bus_dma.c on Raspberry Pi
 3B/3B+
Date: Tue, 26 Nov 2019 06:35:41 +0000

 On 2019/11/26 00:10, Michael van Elst wrote:
 > The following reply was made to PR port-arm/54696; it has been noted by GNATS.
 > 
 > From: mlelstv%serpens.de@localhost (Michael van Elst)
 > To: gnats-bugs%netbsd.org@localhost
 > Cc: 
 > Subject: Re: port-evbarm/54696: Kernel panic in bus_dma.c on Raspberry Pi 3B/3B+
 > Date: Tue, 26 Nov 2019 00:07:37 -0000 (UTC)
 > 
 >  sc.dying%gmail.com@localhost writes:
 >  
 >  >BTW, off topic a bit, I also add sysctl code to set dwc2debug.
 >  >NetBSD on RPI3B cannot use PL011 port as a console?
 >  
 >  That's controlled by the DTB. If you use PL011 as the console and
 >  also want to use bluetooth, you need to reconfigure that to use
 >  the AUX uart and reduce its speed as the AUX uart has only a
 >  tiny FIFO.
 
 ..and bcm2835-aux-uart does not detect break signal.
 That's why I wanna switch to PL011 console.
 
 >  
 >  If you use the AUX uart for anything you must also fix the ARM clock
 >  (e.g. with force_turbo=1) as the baudrate is derived from it.
 
 Thank you for your suggestion.
 I'll look into the device tree subsystem.