[U-Boot] [PATCH 1/2] Removed CONFIG_NUM_CPUS for 85xx and 86xx Freescale processors.

Aggrwal Poonam-B10812 Poonam.Aggrwal at freescale.com
Tue Jul 28 23:45:56 CEST 2009


 

> -----Original Message-----
> From: Wood Scott-B07421 
> Sent: Wednesday, July 29, 2009 2:39 AM
> To: Aggrwal Poonam-B10812
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH 1/2] Removed CONFIG_NUM_CPUS for 
> 85xx and 86xx Freescale processors.
> 
> On Tue, Jul 21, 2009 at 04:17:43PM +0530, Poonam Aggrwal wrote:
> > +int cpu_numcores() {
> > +	struct cpu_type *cpu;
> > +	cpu = gd->cpu;
> > +	return cpu->num_cores;
> > +}
> 
> Shouldn't this check CONFIG_MP and return 1 if not set?  
> Otherwise you get a weird mix of MP and UP.
> 
> The checks to warn the user of a UP u-boot on an MP chip 
> would have to reference cpu->num_cores directly, or we could 
> add a hard_cpu_numcores(), or similar.
This function's intent is to just return the number of cores that the
system has.
This is more of kind of probong the actual hardware.
The CONFIG_MP flag will take care of all the multicore stuff in u-boot.
> 
> -Scott
> 


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