[U-Boot] BIOS EMULATOR driver

[Marek Vasut <marek.vasut@gmail.com>]

Dear Wolfgang Denk,

> Dear Marek Vasut,
> 
> In message <201203261531.18334.marex@denx.de> you wrote:
> > So that means the board work without this bios emulator driver if the
> > radeon driver is disabled? But we want to use the radeon driver, so we
> > need the bios emulator stuff.
> 
> Right.  If you don't need feature X and do not configure it, then you
> don't need the driver that implements feature X, and building without
> this driver works.  If you need feature X, then you must include it,
> and it is usually no dead code then.
> 
> And even if it was, the combination of -ffunction-sections /
> -fdata-sections with --gc-sections should prevent any damages.

Well, certainly ... but from what Viktor told me, there are slabs of dead code 
in this stuff.
> 
> > I think the discussion quite drifted away from the original question,
> > which was if the dead code in bios emulator stuff can be simply removed?
> > ... and if it really is dead code.
> 
> If you need the BIOS emulator to initialize the BIOS of a graphics
> card it it probably not exactly "dead code".

Certainly, though I'm not confident if all of the bios emulator stuff is used.

> 
> Best regards,
> 
> Wolfgang Denk

Best regards,
Marek Vasut