On Tue, 2 Jun 2015, Bin Gao wrote:
> On Tue, Jun 02, 2015 at 01:54:33PM +0200, Ingo Molnar wrote:
> >
> > * Bin Gao <[email protected]> wrote:
> >
> > > The arch independent uart8250 early console driver has good support for
> > > memory
> > > mapped and io port based 8250 uarts. Since pci is arch independent so
> > > it's
> > > natural to extend uart8250 to support mem, io and pci. Hence pci uart
> > > early
> > > console in arch/x86/kernel_printk.c by the following commit: 'commit
> > > 5140fda16051 ("Specify PCI based UART for earlyprintk")' is removed. And
> > > its
> > > equivalent function will be available from uart8250 early console driver.
> >
> > In what way have you tested this change, does serial-earlyprintk still work
> > on x86
> > after the change?
> >
> > Thanks,
> >
> > Ingo
>
> Yes, this patch was tested with earlyprintk=serial,0x3f8 on my x86 box and
> the early console worked fine.
What about the memory mapped uarts which have been source of trouble
in the past?
Thanks,
tglx
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