orange pi win android/linux device tree file

asadpt

Downloaded the android source code for orange pi win from orange pi official website.
In Linux directory arch/arm64/boot/dts, we could not find the device tree file for orange pi win board. Where can we get the device tree file. ..?

After compilaion, android boots properly. the doubt is how the linux kernel gets the device tree binary and initialise the device drivers.

please provide some informations.....