printk/console_init - baud rate setting
sprasad at bivio.net
Thu Nov 15 13:17:31 EST 2007
It was because of the BASE_BAUD value. We are working at 600MHz, not
18.432. After that change, it worked fine.
From: Segher Boessenkool [mailto:segher at kernel.crashing.org]
Sent: Wednesday, November 14, 2007 3:00 PM
To: Siva Prasad
Subject: Re: printk/console_init - baud rate setting
> Thanks for your response Segher.
> I already have the command line "console=ttyS0, 115200". Now, how to
> make sure that 115200 setting is calculated properly for the use by
> In other words, can you kind enough to please let me know how 115200
> supported by the driver, based on the clock frequency.
That is solely the driver's own responsibility, you'll have to look
at the source code. 8250 typically just assumes 18.432MHz.
More information about the Linuxppc-dev