On Fri, Feb 23, 2018 at 11:22:06PM +0800, Icenowy Zheng wrote:
> >> + psci {
> >> + compatible = "arm,psci-0.2";
> >> + method = "smc";
> >> + };
> >
> >Is it needed? The bootloader should fill it with whatever version it
> >has, shouldn't it?
>
> But we now use ATF rather than U-Boot PSCI. U-Boot will not fill ATF
> info.
>
> See A64/H5 device trees.So if the PSCI version implemented in ATF ever changes, we would have to update all the DT everywhere, but only if you're running the new version? Sigh. Maxime -- Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
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