[PATCH] ARM: bcm281xx: Add L2 cache enable code
Arnd Bergmann
arnd at arndb.de
Wed Mar 6 01:31:03 EST 2013
On Tuesday 05 March 2013, Christian Daudt wrote:
> On 13-03-05 01:01 AM, Arnd Bergmann wrote:
> > On Tuesday 05 March 2013, Christian Daudt wrote:
> > For other firmware interfaces like this, we tend to list the specific commands
> > that the firmware understands. If you think there might be different versions
> > to consider, you might want to model this like
> >
> > Documentation/devicetree/bindings/arm/psci.txt
> This interface is stable and in shipping products at this time, and so
> the api will remain constant.
But what about future products? Wouldn't they be able to extend the
current interface in a compatible way?
> >> +static void __init init_irq(void)
> >> +{
> >> + irqchip_init();
> >> + bcm_kona_smc_init();
> >> +
> >> +#ifdef CONFIG_CACHE_L2X0
> >> + kona_l2_cache_init();
> >> +#endif /* CONFIG_CACHE_L2X0 */
> >> +}
> > Why are you calling bcm_kona_smc_init() and kona_l2_cache_init() from init_irq()?
> >
> > It seems completely unrelated to interrupt handling.
> >
> It was originally in init_machine section but I was told that that was
> too late and init_irq would be better, and I saw that highbank also has
> it in init_irq. I agree that it is unrelated to irq - is there a better
> place to put this in ?
IMHO the later the better. Do you know what issues were caused by having it
in init_machine?
Arnd
More information about the linux-arm-kernel
mailing list