arm: at91: siemens: Add support to generate combined SPL+U-Boot image

[oweals/u-boot.git] / dts / Makefile

diff --git a/dts/Makefile b/dts/Makefile
index 9907463fc6344d524d9ea415db5112573c6e1a8b..1f83e615e8aa9a07c97e6589a6ae87e25a874569 100644 (file)
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -1,8 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright (c) 2011 The Chromium OS Authors.
-#
-# SPDX-License-Identifier:     GPL-2.0+
-#
 
 # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
 # enabled. See doc/README.fdt-control for more details.
@@ -12,15 +10,19 @@ ifeq ($(DEVICE_TREE),)
 DEVICE_TREE := unset
 endif
 
+ifneq ($(EXT_DTB),)
+DTB := $(EXT_DTB)
+else
 DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
+endif
 
-quiet_cmd_copy = COPY    $@
-      cmd_copy = cp $< $@
+$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
+       $(call if_changed,fdtgrep)
 
 $(obj)/dt.dtb: $(DTB) FORCE
-       $(call if_changed,copy)
+       $(call if_changed,shipped)
 
-targets += dt.dtb
+targets += dt.dtb dt-spl.dtb
 
 $(DTB): arch-dtbs
        $(Q)test -e $@ || (                                             \
@@ -31,17 +33,23 @@ $(DTB): arch-dtbs
        echo >&2;                                                       \
        /bin/false)
 
+PHONY += arch-dtbs
 arch-dtbs:
        $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
 
-.SECONDARY: $(obj)/dt.dtb.S
-
+ifeq ($(CONFIG_SPL_BUILD),y)
+obj-$(CONFIG_OF_EMBED) := dt-spl.dtb.o
+# support "out-of-tree" build for dtb-spl
+$(obj)/dt-spl.dtb.o: $(obj)/dt-spl.dtb.S FORCE
+       $(call if_changed_dep,as_o_S)
+else
 obj-$(CONFIG_OF_EMBED) := dt.dtb.o
+endif
 
-dtbs: $(obj)/dt.dtb
+dtbs: $(obj)/dt.dtb $(obj)/dt-spl.dtb
        @:
 
-clean-files := dt.dtb.S
+clean-files := dt.dtb.S dt-spl.dtb.S
 
 # Let clean descend into dts directories
-subdir- += ../arch/*/dts
+subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts ../arch/powerpc/dts ../arch/riscv/dts