Hi Chen-Yu,

quoted

quoted

+
+     memory {
+             reg = <0x20000000 0x40000000>;

Usually, what we put there was the maximum amount of RAM that can be
handled by the SoC. I think that it can go above 1GB

With LPAE, it can handle 8GB. But the DT won't take 64bit values.
I'm not sure how to get it in. I'll look around for examples.

You can have a look on what we did for Armada XP:

arch/arm/boot/dts/armada-370-xp.dtsi
arch/arm/boot/dts/armada-xp.dtsi
arch/arm/boot/dts/armada-xp-gp.dts

I created a skeleton64.dtsi for this case

Gregory


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com