Re: [LinuxBIOS] Support for recent chipset and powerful desktop CPU

[Lu, Yinghai]

-----Original Message-----
From: [e-mail] [mailto:[e-mail]]
> I'm looking at earlyprintk.  That looks like the most interesting case.

But
> once something is bootstrapped it should be relatively straight forward
> to make the other cases work.

Me too. Simnow console is there!

With USB serial console enabled in kernel and console=ttyUSB0, only can
get boot message very late.
> From usbcore: registered new interface driver ftdi_sio. Before that only

some lines in buffer.

YH

[LinuxBIOS] Support for recent chipset and powerful desktop CPU

[Peter Stuge]

On Thu, Nov 30, 2006 at 04:53:39PM -0800, Lu, Yinghai wrote:
> With USB serial console enabled in kernel and console=ttyUSB0, only
> can get boot message very late.
> From usbcore: registered new interface driver ftdi_sio. Before that
> only some lines in buffer.

Yeah. The debug device is only useful when the full USB stack isn't
up yet. It doesn't enumerate like other USB devices and can only
handle small transfers, but the EHCI doesn't need RAM to drive it.

I hope Stefan can do some tests with Eric's code.

//Peter