PR/36628 CVS commit: src/sys/arch/alpha/jensenio

["Izumi Tsutsui" <tsutsui%netbsd.org@localhost>]

The following reply was made to PR port-alpha/36628; it has been noted by GNATS.

From: "Izumi Tsutsui" <tsutsui%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/36628 CVS commit: src/sys/arch/alpha/jensenio
Date: Sat, 19 Sep 2020 16:54:34 +0000

 Module Name:	src
 Committed By:	tsutsui
 Date:		Sat Sep 19 16:54:34 UTC 2020
 
 Modified Files:
 	src/sys/arch/alpha/jensenio: com_jensenio.c
 
 Log Message:
 Possible fix for hangup on Jensen mentioned in PR/36628.
 
 According to comments in Linux drivers/tty/serial/8250/8250.h,
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/serial/8250/8250.h?h=v5.8#n242
 the driver has to set OUT1 and OUT2 lines for "some ALPHA"
 otherwise "the machine locks up with endless interrupts."
 Note OUT2 (MCR_IENABLE) is set in MI com_attach_subr()
 so we have to set OUT1 (MCR_DSR) in the MD attachment.
 
 The information was notified from Miod Vallat.
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.15 -r1.16 src/sys/arch/alpha/jensenio/com_jensenio.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.