[PATCH v3 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135
Yingjoe Chen
yingjoe.chen at mediatek.com
Thu Jul 16 07:44:11 PDT 2015
On Tue, 2015-07-14 at 09:19 -0500, Nathan Lynch wrote:
> On 07/14/2015 12:18 AM, Yingjoe Chen wrote:
> > Add arch timer node to enable arch-timer support. MT8135 firmware
> > doesn't correctly setup arch-timer frequency and CNTVOFF, add
> > properties to workaround this.
>
> [...]
>
> >
> > + timer {
> > + compatible = "arm,armv7-timer";
> > + interrupt-parent = <&gic>;
> > + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |
> > + IRQ_TYPE_LEVEL_LOW)>,
> > + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) |
> > + IRQ_TYPE_LEVEL_LOW)>,
> > + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) |
> > + IRQ_TYPE_LEVEL_LOW)>,
> > + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) |
> > + IRQ_TYPE_LEVEL_LOW)>;
> > + clock-frequency = <13000000>;
> > + arm,cpu-registers-not-fw-configured;
>
> It's disappointing to see this property in new DTS submissions. It
> prevents taking advantage of the VDSO for gettimeofday/clock_gettime.
>
Hi,
I know. But unfortunately this is a more then 1 year SoC, so I can't do
anything to change this :(
Joe.C
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