mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-13 16:37:30 +00:00
43b6e38b27
This can be used for device tree size reduction similar as CONFIG_OF_SPL_REMOVE_PROPS option. Some boards must pass the built-in DTB unchanged to the kernel, thus we may not cut it down unconditionally. Therefore enable the property removal list option only if CONFIG_OF_DTB_PROPS_REMOVE is selected. Signed-off-by: Anatolij Gustschin <agust@denx.de>
60 lines
1.5 KiB
Makefile
60 lines
1.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
|
|
#
|
|
# Copyright (c) 2011 The Chromium OS Authors.
|
|
|
|
# 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
|
|
|
|
ifneq ($(EXT_DTB),)
|
|
DTB := $(EXT_DTB)
|
|
else
|
|
DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
|
|
endif
|
|
|
|
$(obj)/dt-spl.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
|
|
$(call if_changed,fdtgrep)
|
|
|
|
ifeq ($(CONFIG_OF_DTB_PROPS_REMOVE),y)
|
|
$(obj)/dt.dtb: $(DTB) $(objtree)/tools/fdtgrep FORCE
|
|
$(call if_changed,fdt_rm_props)
|
|
else
|
|
$(obj)/dt.dtb: $(DTB) FORCE
|
|
$(call if_changed,shipped)
|
|
endif
|
|
|
|
targets += dt.dtb dt-spl.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)
|
|
|
|
PHONY += arch-dtbs
|
|
arch-dtbs:
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
|
|
|
|
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 $(obj)/dt-spl.dtb
|
|
@:
|
|
|
|
clean-files := dt.dtb.S dt-spl.dtb.S
|
|
|
|
# Let clean descend into dts directories
|
|
subdir- += ../arch/arm/dts ../arch/microblaze/dts ../arch/mips/dts ../arch/sandbox/dts ../arch/x86/dts ../arch/powerpc/dts ../arch/riscv/dts
|