From: "Mark A. Greer" <mgreer@mvista.com>
To: "Kim, Jin Young" <jykim@raonet.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Linux boot failed on Sandpoint under baudrate 38400
Date: Fri, 06 Oct 2000 09:41:12 -0700 [thread overview]
Message-ID: <39DE00A8.576CAA9A@mvista.com> (raw)
In-Reply-To: NEBBLJBIIKANNNOGGKNDIEKECCAA.jykim@raonet.com
"Kim, Jin Young" wrote:
> > >
> > > Yes, I set bootloader(arch/ppc/boot/ns16550.c) and DINK (sb -k
> > 38400) to 38400.
> > > So where do I change the baud rate for kernel ?
> >
> > Take a look in include/asm-ppc/serial.h at the define of
> > BASE_BAUD and it's use in
> > STD_SERIAL_PORT_DEFNS.
>
> Isn't it for the clock divisor? What happen if I want to return to 9600 baud?
>
> How about changing the line
> "serial_driver.init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;" to
> "serial_driver.init_termios.c_cflag = B38400 | CS8 | CREAD | HUPCL | CLOCAL;"
> in rs_int() for the serial device and
> "int baud = 9600;" to "int baud = 38400;" in serial_console_setup() for the console.
>
> Both in drivers/char/serial.c
>
> Stephan Kim
Yes, you're right. Sorry, I was thinking of something else.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-10-06 16:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-05 20:53 Linux boot failed on Sandpoint under baudrate 38400 Zhaobin Zhu
2000-10-05 21:17 ` Mark A. Greer
2000-10-05 21:27 ` Zhaobin Zhu
2000-10-05 22:07 ` Mark A. Greer
2000-10-06 1:30 ` Kim, Jin Young
2000-10-06 16:41 ` Mark A. Greer [this message]
2000-10-06 15:12 ` "Jeffrey D. Kowing" <Jeff Kowing
2000-10-06 15:43 ` Zhaobin Zhu
2000-10-08 3:13 ` Linux boot over NFS Zhaobin Zhu
2000-10-09 17:51 ` Mark A. Greer
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