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-rw-r--r--qemu/roms/u-boot/dts/.gitignore2
-rw-r--r--qemu/roms/u-boot/dts/Makefile47
2 files changed, 49 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/dts/.gitignore b/qemu/roms/u-boot/dts/.gitignore
new file mode 100644
index 000000000..1b3718065
--- /dev/null
+++ b/qemu/roms/u-boot/dts/.gitignore
@@ -0,0 +1,2 @@
+*.dtb
+*.dtb.S
diff --git a/qemu/roms/u-boot/dts/Makefile b/qemu/roms/u-boot/dts/Makefile
new file mode 100644
index 000000000..e59550c9d
--- /dev/null
+++ b/qemu/roms/u-boot/dts/Makefile
@@ -0,0 +1,47 @@
+#
+# 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.
+
+DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
+ifeq ($(DEVICE_TREE),)
+DEVICE_TREE := unset
+endif
+
+DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
+
+quiet_cmd_copy = COPY $@
+ cmd_copy = cp $< $@
+
+$(obj)/dt.dtb: $(DTB) FORCE
+ $(call if_changed,copy)
+
+targets += dt.dtb
+
+$(DTB): arch-dtbs
+ $(Q)test -e $@ || ( \
+ echo >&2; \
+ echo >&2 "Device Tree Source is not correctly specified."; \
+ echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'"; \
+ echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument"; \
+ echo >&2; \
+ /bin/false)
+
+arch-dtbs:
+ $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
+
+.SECONDARY: $(obj)/dt.dtb.S
+
+obj-$(CONFIG_OF_EMBED) := dt.dtb.o
+
+dtbs: $(obj)/dt.dtb
+ @:
+
+clean-files := dt.dtb.S
+
+# Let clean descend into dts directories
+subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/sandbox/dts ../arch/x86/dts