[PATCH] ARM: dts: berlin2q.dtsi: set L2CC tag and data latency as 2 cycles

Jisheng Zhang jszhang at marvell.com
Thu Jun 12 03:19:19 PDT 2014


Hi Russell,

On Thu, 12 Jun 2014 03:15:03 -0700
Jisheng Zhang <jszhang at marvell.com> wrote:

> Hi Russell,
> 
> On Thu, 12 Jun 2014 02:44:23 -0700
> Russell King - ARM Linux <linux at arm.linux.org.uk> wrote:
> 
> > On Thu, Jun 12, 2014 at 05:38:40PM +0800, Jisheng Zhang wrote:
> > > For all BG2Q SoCs, 2 cycles is the best/correct value
> > 
> > It would be a good idea to set all these parameters if you need to set
> > them at all - in other words, setting arm,dirty-latency as well, as
> > that's all part of the timing specification.
> > 
> 
> Thanks for reviewing this patch. I will check with SoC people to find the
> correct dirty-latency value.

The BG2Q L2 cache controller is PL310, so no "dirty-latency"

Thanks,
Jisheng



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