lkml.org 
[lkml]   [2007]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [patch] early printk and boot console fixups.
Date
On Tuesday 15 May 2007 10:17:50 pm Yinghai Lu wrote:
> for early_uart_console, I have some ideas:
> 1. merged that into early_serial_console in
> arch/x86_64/kernel/early_printk.c, and
> move early_printk.c to kernel/, --- make it understand
> earlyprintk=uart,io,0x3f8,9600n8
> earlyprintk=uart,mmio,0xff5e0000,115200n8
> in addition to vga, ttyS, serial

I would rather try to merge 8250_early and early_printk.
"console=uart,io,0x3f8" is already pretty similar to
"earlyprintk=serial", and it would be nice to have only one.

"console=uart" does have the disadvantage that you have to know the
port address. But it has the advantage that it doesn't depend on
compiled-in legacy serial port names. If you need early console
output, you're probably a developer and can come up with the address.

I think it would be nice to have a "console=vga". That could use
the current "earlyprintk=vga" implementation, and automatically
hand off to tty0.

Then we could remove "earlyprintk=" and always use "console=uart"
or "console=vga".

Bjorn


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-05-16 18:01    [from the cache]
©2003-2011 Jasper Spaans