1dts-dirs += altera 2dts-dirs += amd 3dts-dirs += amlogic 4dts-dirs += apm 5dts-dirs += arm 6dts-dirs += broadcom 7dts-dirs += cavium 8dts-dirs += exynos 9dts-dirs += freescale 10dts-dirs += hisilicon 11dts-dirs += marvell 12dts-dirs += mediatek 13dts-dirs += nvidia 14dts-dirs += qcom 15dts-dirs += renesas 16dts-dirs += rockchip 17dts-dirs += socionext 18dts-dirs += sprd 19dts-dirs += xilinx 20 21subdir-y := $(dts-dirs) 22 23dtstree := $(srctree)/$(src) 24 25dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(foreach d,$(dts-dirs), $(wildcard $(dtstree)/$(d)/*.dts))) 26 27always := $(dtb-y) 28