diff options
Diffstat (limited to 'dts')
| -rw-r--r-- | dts/.gitignore | 2 | ||||
| -rw-r--r-- | dts/Makefile | 75 |
2 files changed, 28 insertions, 49 deletions
diff --git a/dts/.gitignore b/dts/.gitignore new file mode 100644 index 0000000..1b37180 --- /dev/null +++ b/dts/.gitignore @@ -0,0 +1,2 @@ +*.dtb +*.dtb.S diff --git a/dts/Makefile b/dts/Makefile index 6c7198f..9907463 100644 --- a/dts/Makefile +++ b/dts/Makefile @@ -7,64 +7,41 @@ # 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),) -$(if $(CONFIG_DEFAULT_DEVICE_TREE),,\ -$(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file)) -DEVICE_TREE = $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%) +DEVICE_TREE := unset endif -DTS_INCDIRS = $(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts -DTS_INCDIRS += $(SRCTREE)/board/$(VENDOR)/dts -DTS_INCDIRS += $(SRCTREE)/arch/$(ARCH)/dts +DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb -DTS_CPPFLAGS := -x assembler-with-cpp -undef -D__DTS__ \ - -nostdinc $(addprefix -I,$(DTS_INCDIRS)) +quiet_cmd_copy = COPY $@ + cmd_copy = cp $< $@ -DTC_FLAGS := -R 4 -p 0x1000 \ - $(addprefix -i ,$(DTS_INCDIRS)) +$(obj)/dt.dtb: $(DTB) FORCE + $(call if_changed,copy) -# Use a constant name for this so we can access it from C code. -# objcopy doesn't seem to allow us to set the symbol name independently of -# the filename. -DT_BIN := $(obj)dt.dtb +targets += dt.dtb -$(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts - $(CPP) $(DTS_CPPFLAGS) $< -o $(DT_BIN).dts.tmp - $(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dts.tmp +$(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) -process_lds = \ - $(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p' +arch-dtbs: + $(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs -# Run the compiler and get the link script from the linker -GET_LDS = $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--verbose 2>&1 +.SECONDARY: $(obj)/dt.dtb.S -$(obj)dt.o: $(DT_BIN) - # We want the output format and arch. - # We also hope to win a prize for ugliest Makefile / shell interaction - # We look in the LDSCRIPT first. - # Then try the linker which should give us the answer. - # Then check it worked. - [ -n "$(LDSCRIPT)" ] && \ - oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` && \ - oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\ - \ - [ -z $${oformat} ] && \ - oformat=`$(call process_lds,$(GET_LDS),FORMAT)` ;\ - [ -z $${oarch} ] && \ - oarch=`$(call process_lds,$(GET_LDS),ARCH)` ;\ - \ - [ -z $${oformat} ] && \ - echo "Cannot read OUTPUT_FORMAT from lds file $(LDSCRIPT)" && \ - exit 1 || true ;\ - [ -z $${oarch} ] && \ - echo "Cannot read OUTPUT_ARCH from lds file $(LDSCRIPT)" && \ - exit 1 || true ;\ - \ - cd $(dir ${DT_BIN}) && \ - $(OBJCOPY) -I binary -O $${oformat} -B $${oarch} \ - $(notdir ${DT_BIN}) $@ - rm $(DT_BIN) +obj-$(CONFIG_OF_EMBED) := dt.dtb.o -obj-$(CONFIG_OF_EMBED) := dt.o +dtbs: $(obj)/dt.dtb + @: -binary: $(DT_BIN) +clean-files := dt.dtb.S + +# Let clean descend into dts directories +subdir- += ../arch/*/dts |