Re: [PATCH v5 1/9] arm64: dts: exynos: Add dts files for 64-bit Exynos5433 SoC

[Mark Rutland]

Hi,

[...]

> >> +       psci {
> >> +               compatible = "arm,psci";
> >> +               method = "smc";
> >> +               cpu_off = <0x84000002>;
> >> +               cpu_on = <0xC4000003>;
> >> +       };
> >
> > Back at v2 you mentioned that CPU_OFF wasn't working [1].
> >
> > Do both CPU_ON and CPU_OFF work for all CPUs, including the boot CPU?
> 
> The CPU1 ~ CPU7 are well woking about CPU_ON/OFF.
> CPU0 (boot CPU) is only well working for CPU_OFF.
> But when I try to turn on the CPU0 after CPU_OFF, I failed it.

That's rather worrying. Can you look into what's going on here? I'd
rather not have dts describing things which are known to be broken.

> > I take it CPUs boot at EL2?

Do the CPUs boot at EL1 or EL2?

[...]

> > The timer node should be moved under the root node. It doesn't live on
> > the bus; it's a component of the CPU.
> 
> OK. I'll move it according to your comment.

Thanks.

Mark.
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