[PATCH] get USB debug console working in ROM stage

[Stefan Reinauer]

See patch.

[Georgi, Patrick]

Am Donnerstag, den 27.01.2011, 18:16 -0800 schrieb Stefan Reinauer:
> +#if defined(__ROMCC__)
> +#define printk(BIOS_DEBUG, fmt, arg...)   do {} while(0)
> +#else

romcc doesn't support variadic macros. This only "works" because no
chipset that uses romcc supports USB debug.
Given the age of romcc-chipsets I think it's safe to assume that they
support serial console, so how about we make usbdebug a CAR-only feature
(ie. drop this #define)?

Otherwise the patch is
Acked-by: Patrick Georgi

Patrick

[Stefan Reinauer]

* Georgi, Patrick  [110128 08:22]:
> Am Donnerstag, den 27.01.2011, 18:16 -0800 schrieb Stefan Reinauer:
> > +#if defined(__ROMCC__)
> > +#define printk(BIOS_DEBUG, fmt, arg...)   do {} while(0)
> > +#else
>
> romcc doesn't support variadic macros. This only "works" because no
> chipset that uses romcc supports USB debug.
> Given the age of romcc-chipsets I think it's safe to assume that they
> support serial console, so how about we make usbdebug a CAR-only feature
> (ie. drop this #define)?

You are right. The rest of the code has some CAR assumptions, too, and
the code complexity would probably make romcc explode anyways. So for
now, I dropped the ROMCC specific stuff, including the changes I made to
src/include/console/console.h
> Otherwise the patch is
> Acked-by: Patrick Georgi

Thanks. r6315