openbmc.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: "Yong Li" <yong.b.li@linux.intel.com>
To: "'AKASH G J'" <akashgj91@gmail.com>, <openbmc@lists.ozlabs.org>
Subject: RE: Serial Over Lan (SOL) no login prompt on Linux IRQ mode
Date: Fri, 27 Dec 2019 15:33:41 +0800	[thread overview]
Message-ID: <000001d5bc87$f6fe3780$e4faa680$@linux.intel.com> (raw)
In-Reply-To: <CAE33tLEsCJtr9VPYj57ZcOe5iWD6282WmrMTr-Hp96Y3rkBzAA@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1422 bytes --]

HI Akash,

 

Just FYI, we are using the below conf file. You can find other related files from https://github.com/Intel-BMC/openbmc/blob/intel/meta-openbmc-mods/meta-ast2500/recipes-phosphor/console/obmc-console/obmc-console.conf

 

cat /etc/obmc-console.conf

baud = 115200

local-tty = ttyS3

local-tty-baud = 115200

 

Thanks,

Yong

From: openbmc <openbmc-bounces+yong.b.li=linux.intel.com@lists.ozlabs.org> On Behalf Of AKASH G J
Sent: Friday, December 27, 2019 2:54 PM
To: openbmc@lists.ozlabs.org
Subject: Serial Over Lan (SOL) no login prompt on Linux IRQ mode

 

Hi all,

 

We are using BMC Aspeed AST-2500 in our motherboard with OpenBMC firmware. 'obmc-console' is used to get host messages over BMC. obmc-console.conf looks like 

lpc-address = 0x3f8
sirq = 4
local-tty = ttyS4
local-tty-baud = 115200

 

BIOS serial redirection is enabled over COM port 0 (0x3f8, sirq=4, baudrate=115200) for super-IO.

 

we set /dev/ttyS0 in CentOS to work in polling mode by making its irq=0 using the following command 

 

$ setserial /dev/ttyS0 uart 16550a irq 0 

Now we are getting CentOS login prompt on SOL. 

When we change /dev/ttyS0 back to interrupt mode with irq=4, we are not getting login prompt on SOL.

 

Whether anything is required to be done in OpenBMC firmware/BIOS to enable irq mode for SOL ?

 

 

 

Thanks,

 

Akash


[-- Attachment #2: Type: text/html, Size: 5788 bytes --]

  reply	other threads:[~2019-12-27  7:33 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-27  6:54 Serial Over Lan (SOL) no login prompt on Linux IRQ mode AKASH G J
2019-12-27  7:33 ` Yong Li [this message]
2019-12-30  0:02   ` AKASH G J
2021-07-26 14:36     ` Konstantin Klubnichkin
2021-07-26 14:52       ` Paul Fertser
2021-07-26 16:42         ` Konstantin Klubnichkin
2021-07-26 16:51           ` Paul Fertser
2021-07-27  8:53             ` Konstantin Klubnichkin
2021-07-27  9:30               ` Paul Fertser
2021-11-24 20:33                 ` Oskar Senft

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='000001d5bc87$f6fe3780$e4faa680$@linux.intel.com' \
    --to=yong.b.li@linux.intel.com \
    --cc=akashgj91@gmail.com \
    --cc=openbmc@lists.ozlabs.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).