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What is the use of memory node for DDR in device tree ?

Question asked by Vijai Kumar on Dec 20, 2015
Latest reply on Jun 12, 2018 by Reyhaneh Yazdani

Hi All,

         I see the following node in sabresd and other freescale based boards device tree.

memory {
                reg = <0x10000000 0x40000000>;

What is the exact use case of this?

Even if I change or remove it my kernel works fine.