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