[U-Boot] [PATCH 2/2 RESEND] SPL: Allow user to disable CPU support library

[Marek Vasut]

On Thursday, October 06, 2011 12:02:17 AM Scott Wood wrote:
> On 10/05/2011 04:44 PM, Tom Rini wrote:
> > On Thu, Sep 22, 2011 at 1:52 AM, Marek Vasut <marek.vasut at gmail.com> wrote:
> >> On Wednesday, September 21, 2011 01:31:28 AM Scott Wood wrote:
> >>> Is it really such a burden to put something like
> >>> 
> >>> #define CONFIG_SPL_ARCH_CPU
> >>> 
> >>> in your board config header?
> >> 
> >> Yes it's a burden. It's a burden to add this to all boards but one. It
> >> makes no sense.
> > 
> > Looking at a pile of partially ported TI boards, I wonder if we don't
> > need a few common SPL include files, setting this-and-that and then
> > letting boards opt-out of these defaults (or just going it alone?) as
> > needed.
> 
> A header with common opt-ins would be good -- possibly have a small
> number of common "profiles" for typical types of SPL, and/or high-level
> feature #ifdefs that #define the components required to enable them.
> 
> Also, an opt-out might be more palatable if it is local to this
> particular CPU makefile, and indicates what specifically is being opted
> out of -- what constitutes a "CPU support library" is vague from a
> target-independent view.
> 
> I guess what you're really trying to replace is the initial entry code,
> with something provided under board/?  Only the cpu makefile knows which
> files are initial entry versus other CPU-specific things.
> 
> -Scott

Very well then, who's preparing the profiles?

Also, the CPU-library will then be composed of no files, will the makefiles 
handle empty COBJS ?
Cheers