[PATCH 3/6] omap4: l2x0: Override the default l2x0_disable

Shilimkar, Santosh santosh.shilimkar at ti.com
Thu Sep 16 01:56:39 EDT 2010


> -----Original Message-----
> From: Tony Lindgren [mailto:tony at atomide.com]
> Sent: Thursday, September 16, 2010 5:52 AM
> To: Shilimkar, Santosh
> Cc: linux-arm-kernel at lists.infradead.org; tglx at linutronix.de;
> catalin.marinas at arm.com; linux-omap at vger.kernel.org
> Subject: Re: [PATCH 3/6] omap4: l2x0: Override the default l2x0_disable
> 
> * Santosh Shilimkar <santosh.shilimkar at ti.com> [100907 00:50]:
> > The machine_kexec() calls outer_disable which can crash on OMAP4
> > becasue of trustzone restrictions.
> >
> > This patch overrides the default l2x0_disable with a OMAP4
> > specific implementation taking care of trustzone
> 
> <snip>
> 
> > @@ -66,6 +73,12 @@ static int __init omap_l2_cache_init(void)
> >
> >  	 */
> >  	l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
> >
> > +	/*
> > +	 * Override default outer_cache.disable with a OMAP4
> > +	 * specific one
> > +	*/
> > +	outer_cache.disable = omap4_l2x0_disable;
> > +
> >  	return 0;
> >  }
> >  early_initcall(omap_l2_cache_init);
> 
> Just to be sure.. No outer_cache functions get set unless
> l2x0_init gets called, right? So omap2 and omap3 functions
> always stay NULL with omap3_defconfig?
> 
Yes.



More information about the linux-arm-kernel mailing list