[PATCH 9/9] ARM: vexpress: Config option for early printk console

[Pawel Moll]

On Wed, 2012-07-11 at 15:23 +0100, Jonathan Austin wrote:
> Hi Pawel,
> 
> On 11/07/12 14:36, Pawel Moll wrote:
> > diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> > index 01a1341..12eee87 100644
> > --- a/arch/arm/Kconfig.debug
> > +++ b/arch/arm/Kconfig.debug
> > @@ -310,6 +310,32 @@ choice
> >  		  The uncompressor code port configuration is now handled
> >  		  by CONFIG_S3C_LOWLEVEL_UART_PORT.
> >  
> > +	config DEBUG_VEXPRESS_UART0_DETECT
> > +		bool "Autodetect UART0 on Versatile Express Cortex-A core tiles"
> > +		depends on ARCH_VEXPRESS
> > +		help
> > +		  This option enables simple heuristic which tries to determine
> > +		  motherboard's memory map variant (original or RS1) and then
> > +		  choose relevant UART0 base address.
> > +
> > +		  Note that this will only work with standard A-class core tiles,
> > +		  and may fail with non-standard SMM or custom software model.
> > +
> 
> Is it possible to make this depend on something like CPU_CP15_MMU,
> instead of ARCH_VEXPRESS? Seems like a reasonable way to ensure that
> this isn't used on some of the core tiles that don't have the required
> cp15 registers to read the Configuration Base Address Register.

Yes, sure, I forgot about this! Sorry, will post v2 in a second.

Pawel