# # (C) Copyright 2000-2011 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # (C) Copyright 2011 # Daniel Schwierzeck, daniel.schwierzeck@googlemail.com. # # (C) Copyright 2011 # Texas Instruments Incorporated - http://www.ti.com/ # Aneesh V <aneesh@ti.com> # # SPDX-License-Identifier: GPL-2.0+ # # Based on top-level Makefile. # src := $(obj) # Create output directory if not already present _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) include $(srctree)/scripts/Kbuild.include -include include/config/auto.conf -include $(obj)/include/autoconf.mk KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD ifeq ($(CONFIG_TPL_BUILD),y) KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD endif ifeq ($(CONFIG_TPL_BUILD),y) SPL_BIN := u-boot-tpl else SPL_BIN := u-boot-spl endif ifdef CONFIG_SPL_BUILD SPL_ := SPL_ else SPL_ := endif include $(srctree)/config.mk include $(srctree)/arch/$(ARCH)/Makefile # Enable garbage collection of un-used sections for SPL KBUILD_CFLAGS += -ffunction-sections -fdata-sections LDFLAGS_FINAL += --gc-sections # FIX ME cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ $(NOSTDINC_FLAGS) c_flags := $(KBUILD_CFLAGS) $(cpp_flags) HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/ libs-y += common/init/ # Special handling for a few options which support SPL/TPL ifeq ($(CONFIG_TPL_BUILD),y) libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/ else libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/ endif libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ libs-y += drivers/ libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/ libs-y += dts/ libs-y += fs/ libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ libs-$(CONFIG_SPL_NET_SUPPORT) += net/ head-y := $(addprefix $(obj)/,$(head-y)) libs-y := $(addprefix $(obj)/,$(libs-y)) u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) # Add GCC lib ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) endif u-boot-spl-init := $(head-y) u-boot-spl-main := $(libs-y) ifdef CONFIG_SPL_OF_PLATDATA u-boot-spl-platdata := $(obj)/dts/dt-platdata.o endif # Linker Script ifdef CONFIG_SPL_LDSCRIPT # need to strip off double quotes LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) $(error could not find linker script) endif # Special flags for CPP when processing the linker script. # Pass the version down so we can handle backwards compatibility # on the fly. LDPPFLAGS += \ -include $(srctree)/include/u-boot/u-boot.lds.h \ -include $(objtree)/include/config.h \ -DCPUDIR=$(CPUDIR) \ $(shell $(LD) --version | \ sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') MKIMAGEOUTPUT ?= /dev/null quiet_cmd_mkimage = MKIMAGE $@ cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE) MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE) MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE $(call if_changed,mkimage) ifeq ($(CONFIG_SYS_SOC),"at91") MKIMAGEFLAGS_boot.bin = -T atmelimage ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y) MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params) boot.bin: $(obj)/../tools/atmel_pmecc_params endif boot.bin: $(obj)/u-boot-spl.bin FORCE $(call if_changed,mkimage) else ifdef CONFIG_ARCH_ZYNQ MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) endif ifdef CONFIG_ARCH_ZYNQMP MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) endif spl/boot.bin: $(obj)/u-boot-spl.bin FORCE $(call if_changed,mkimage) endif ALL-y += $(obj)/$(SPL_BIN).bin ifdef CONFIG_SAMSUNG ALL-y += $(obj)/$(BOARD)-spl.bin endif ifdef CONFIG_ARCH_SOCFPGA ALL-y += $(obj)/$(SPL_BIN).sfp endif ifdef CONFIG_ARCH_SUNXI ALL-y += $(obj)/sunxi-spl.bin endif ifeq ($(CONFIG_SYS_SOC),"at91") ALL-y += boot.bin endif ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin all: $(ALL-y) quiet_cmd_cat = CAT $@ cmd_cat = cat $(filter-out $(PHONY), $^) > $@ quiet_cmd_copy = COPY $@ cmd_copy = cp $< $@ ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy) $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \ $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \ $(obj)/$(SPL_BIN).dtb FORCE $(call if_changed,cat) $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE $(call if_changed,copy) else $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE $(call if_changed,copy) endif # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN) @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \ dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null; # Pass the original device tree file through fdtgrep twice. The first pass # removes any unwanted nodes (i.e. those which don't have the # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second # pass removes various unused properties from the remaining nodes. # The output is typically a much smaller device tree file. quiet_cmd_fdtgrep = FDTGREP $@ cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \ -n /chosen -O dtb | \ $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \ $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS))) $(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE $(call if_changed,fdtgrep) pythonpath = PYTHONPATH=tools quiet_cmd_dtocc = DTOC C $@ cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata quiet_cmd_dtoch = DTOC H $@ cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct quiet_cmd_plat = PLAT $@ cmd_plat = $(CC) $(c_flags) -c $< -o $@ $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h $(call if_changed,plat) PHONY += dts_dir dts_dir: $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts) include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc $(call if_changed,dtoch) $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc $(call if_changed,dtocc) dtoc: #$(objtree)/tools/_libfdt.so ifdef CONFIG_SAMSUNG ifdef CONFIG_VAR_SIZE_SPL VAR_SIZE_PARAM = --vs else VAR_SIZE_PARAM = endif $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ endif quiet_cmd_objcopy = OBJCOPY $@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \ $(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec) $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE $(call if_changed,objcopy) LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) ifneq ($(CONFIG_SPL_TEXT_BASE),) LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) endif MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE $(call if_changed,mkimage) quiet_cmd_mksunxiboot = MKSUNXI $@ cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@ $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE $(call if_changed,mksunxiboot) # Rule to link u-boot-spl # May be overridden by arch/$(ARCH)/config.mk quiet_cmd_u-boot-spl ?= LD $@ cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \ $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \ $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \ --end-group \ $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)) $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE $(call if_changed,u-boot-spl) $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; PHONY += $(u-boot-spl-dirs) $(u-boot-spl-dirs): $(u-boot-spl-platdata) $(Q)$(MAKE) $(build)=$@ quiet_cmd_cpp_lds = LDS $@ cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE $(call if_changed_dep,cpp_lds) # read all saved command lines targets := $(wildcard $(sort $(targets))) cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) $(cmd_files): ; # Do not try to update included dependency files include $(cmd_files) endif PHONY += FORCE FORCE: # Declare the contents of the .PHONY variable as phony. We keep that # information in a variable so we can use it in if_changed and friends. .PHONY: $(PHONY)