device tree sources (shortened)

ac1200.dts

#include zbt.dsti

&spi0 {
	m25p80@0 {
		partition@50000 {
			reg = <0x50000 0x1fb0000>
		};
	};
};

zbt.dtsi

...

&spi0 {
	m25p80@0 {
		partition@0 {...};
		partition@30000 {...};
		factory: partition@40000 {...};
		
		partition@50000 {
			...
			reg = <0x50000 0xfb0000>
			...
		};
	};
};

...