[people/ms/u-boot.git] / dts / Makefile

#
# Copyright (c) 2011 The Chromium OS Authors.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundatio; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#

# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
# enabled. See doc/README.fdt-control for more details.

include $(TOPDIR)/config.mk

LIB	= $(obj)libdts.o

$(if $(CONFIG_DEFAULT_DEVICE_TREE),,\
$(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file))
DEVICE_TREE = $(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE))

$(if $(CONFIG_ARCH_DEVICE_TREE),,\
$(error Your architecture does not have device tree support enabled. \
Please define CONFIG_ARCH_DEVICE_TREE))

# We preprocess the device tree file provide a useful define
DTS_CPPFLAGS := -x assembler-with-cpp \
		-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\" \
		-I$(SRCTREE)/board/$(VENDOR)/dts -I$(SRCTREE)/arch/$(ARCH)/dts

all:	$(obj).depend $(LIB)

# 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

$(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
	rc=$$( \
		cat $< | $(CPP) -P $(DTS_CPPFLAGS) - | \
		{ { $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} - 2>&1 ; \
		    echo $$? >&3 ; } | \
		  grep -v '^DTC: dts->dtb  on file' ; \
	        } 3>&1 1>&2 ) ; \
	exit $$rc

process_lds = \
	$(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'

# Run the compiler and get the link script from the linker
GET_LDS = $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--verbose 2>&1

$(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)

OBJS-$(CONFIG_OF_EMBED)	:= dt.o

COBJS	:= $(OBJS-y)

OBJS	:= $(addprefix $(obj),$(COBJS))

binary:	$(DT_BIN)

$(LIB):	$(OBJS) $(DTB)
	$(call cmd_link_o_target, $(OBJS))

#########################################################################

# defines $(obj).depend target
include $(SRCTREE)/rules.mk

sinclude $(obj).depend

#########################################################################
Commit	Line	Data
bbb0b128 SG	1	#
	2	# Copyright (c) 2011 The Chromium OS Authors.
	3	#
	4	# See file CREDITS for list of people who contributed to this
	5	# project.
	6	#
	7	# This program is free software; you can redistribute it and/or
	8	# modify it under the terms of the GNU General Public License as
	9	# published by the Free Software Foundatio; either version 2 of
	10	# the License, or (at your option) any later version.
	11	#
	12	# This program is distributed in the hope that it will be useful,
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	# GNU General Public License for more details.
	16	#
	17	# You should have received a copy of the GNU General Public License
	18	# along with this program; if not, write to the Free Software
	19	# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	20	# MA 02111-1307 USA
	21	#
	22
	23	# This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
	24	# enabled. See doc/README.fdt-control for more details.
	25
	26	include $(TOPDIR)/config.mk
	27
	28	LIB = $(obj)libdts.o
	29
	30	$(if $(CONFIG_DEFAULT_DEVICE_TREE),,\
	31	$(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file))
	32	DEVICE_TREE = $(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE))
	33
	34	$(if $(CONFIG_ARCH_DEVICE_TREE),,\
	35	$(error Your architecture does not have device tree support enabled. \
	36	Please define CONFIG_ARCH_DEVICE_TREE))
	37
	38	# We preprocess the device tree file provide a useful define
6487d88a	39	DTS_CPPFLAGS := -x assembler-with-cpp \
b4f106be	40	-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
6c5be646 TW	41	-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\" \
6c5be646 TW	42	-I$(SRCTREE)/board/$(VENDOR)/dts -I$(SRCTREE)/arch/$(ARCH)/dts
bbb0b128 SG	43
	44	all: $(obj).depend $(LIB)
	45
	46	# Use a constant name for this so we can access it from C code.
	47	# objcopy doesn't seem to allow us to set the symbol name independently of
	48	# the filename.
	49	DT_BIN := $(obj)dt.dtb
	50
	51	$(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
896bbb53 WD	52	rc=$$( \
	53	cat $< \| $(CPP) -P $(DTS_CPPFLAGS) - \| \
	54	{ { $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} - 2>&1 ; \
	55	echo $$? >&3 ; } \| \
	56	grep -v '^DTC: dts->dtb on file' ; \
58e22f8a	57	} 3>&1 1>&2 ) ; \
896bbb53	58	exit $$rc
bbb0b128 SG	59
	60	process_lds = \
	61	$(1) \| sed -r -n 's/^OUTPUT_$(2)[ ("]([^")]).*/\1/p'
	62
	63	# Run the compiler and get the link script from the linker
	64	GET_LDS = $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--verbose 2>&1
	65
	66	$(obj)dt.o: $(DT_BIN)
	67	# We want the output format and arch.
	68	# We also hope to win a prize for ugliest Makefile / shell interaction
	69	# We look in the LDSCRIPT first.
	70	# Then try the linker which should give us the answer.
	71	# Then check it worked.
a4ff4719 HK	72	[ -n "$(LDSCRIPT)" ] && \
	73	oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` && \
	74	oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\
bbb0b128 SG	75	\
	76	[ -z $${oformat} ] && \
	77	oformat=`$(call process_lds,$(GET_LDS),FORMAT)` ;\
	78	[ -z $${oarch} ] && \
	79	oarch=`$(call process_lds,$(GET_LDS),ARCH)` ;\
	80	\
	81	[ -z $${oformat} ] && \
	82	echo "Cannot read OUTPUT_FORMAT from lds file $(LDSCRIPT)" && \
	83	exit 1 \|\| true ;\
	84	[ -z $${oarch} ] && \
	85	echo "Cannot read OUTPUT_ARCH from lds file $(LDSCRIPT)" && \
	86	exit 1 \|\| true ;\
	87	\
	88	cd $(dir ${DT_BIN}) && \
	89	$(OBJCOPY) -I binary -O $${oformat} -B $${oarch} \
	90	$(notdir ${DT_BIN}) $@
	91	rm $(DT_BIN)
	92
	93	OBJS-$(CONFIG_OF_EMBED) := dt.o
	94
	95	COBJS := $(OBJS-y)
	96
	97	OBJS := $(addprefix $(obj),$(COBJS))
	98
	99	binary: $(DT_BIN)
	100
	101	$(LIB): $(OBJS) $(DTB)
	102	$(call cmd_link_o_target, $(OBJS))
	103
	104	#########################################################################
	105
	106	# defines $(obj).depend target
	107	include $(SRCTREE)/rules.mk
	108
	109	sinclude $(obj).depend
	110
	111	#########################################################################