Messages in this thread | | | From | Bjorn Helgaas <> | Subject | Re: [patch] early printk and boot console fixups. | Date | Wed, 16 May 2007 09:59:12 -0600 |
| |
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/
| |