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

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

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.