Conditionals in dtsi files

[Mason]

Hello,

I'm wondering how much C preprocessor syntax one can use in DT files.

Suppose I have 2 board DTS (both including common.dtsi)

board_A.dts (1-core), board_B.dts (2-core)

Can I have in common.dtsi something along these lines:

        cpus {
                enable-method = "foo,bar";
                #address-cells = <1>;
                #size-cells = <0>;

                cpu0: cpu@0 {
                        compatible = "arm,cortex-a9";
                        device_type = "cpu";
                        reg = <0>;
                };

#if CORE_COUNT > 1
                cpu1: cpu@1 {
                        compatible = "arm,cortex-a9";
                        device_type = "cpu";
                        reg = <1>;
                };
#endif
        };


board_A.dts would have
#define CORE_COUNT 1
#include "common.dtsi"

board_B.dts would have
#define CORE_COUNT 2
#include "common.dtsi"

Regards.
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