--- zzzz-none-000/linux-3.10.107/arch/arm64/boot/dts/Makefile	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm64/boot/dts/Makefile	2021-02-04 17:41:59.000000000 +0000
@@ -1,8 +1,23 @@
-dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb foundation-v8.dtb
+dts-dirs += altera
+dts-dirs += amd
+dts-dirs += apm
+dts-dirs += arm
+dts-dirs += broadcom
+dts-dirs += cavium
+dts-dirs += exynos
+dts-dirs += freescale
+dts-dirs += hisilicon
+dts-dirs += marvell
+dts-dirs += mediatek
+dts-dirs += qcom
+dts-dirs += rockchip
+dts-dirs += sprd
+dts-dirs += xilinx
 
-targets += dtbs
-targets += $(dtb-y)
+subdir-y	:= $(dts-dirs)
 
-dtbs: $(addprefix $(obj)/, $(dtb-y))
+dtstree		:= $(srctree)/$(src)
 
-clean-files := *.dtb
+dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(foreach d,$(dts-dirs), $(wildcard $(dtstree)/$(d)/*.dts)))
+
+always		:= $(dtb-y)