| # |
| # (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 |
| |
| 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-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/ |
| libs-y += drivers/ |
| libs-y += dts/ |
| libs-y += fs/ |
| libs-$(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') |
| |
| quiet_cmd_mkimage = MKIMAGE $@ |
| cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ |
| $(if $(KBUILD_VERBOSE:1=), >/dev/null) |
| |
| 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 |
| endif |
| ifdef CONFIG_ARCH_ZYNQMP |
| MKIMAGEFLAGS_boot.bin = -T zynqmpimage |
| endif |
| |
| spl/boot.bin: $(obj)/u-boot-spl.bin FORCE |
| $(call if_changed,mkimage) |
| endif |
| |
| ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg |
| |
| ifdef CONFIG_SAMSUNG |
| ALL-y += $(obj)/$(BOARD)-spl.bin |
| endif |
| |
| ifdef CONFIG_ARCH_SOCFPGA |
| ALL-y += $(obj)/$(SPL_BIN).sfp |
| endif |
| |
| ifdef CONFIG_SUNXI |
| ALL-y += $(obj)/sunxi-spl.bin |
| endif |
| |
| ifeq ($(CONFIG_SYS_SOC),"at91") |
| ALL-y += boot.bin |
| endif |
| |
| 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 $(obj)/$(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) |
| |
| quiet_cmd_cpp_cfg = CFG $@ |
| cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ |
| -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< |
| |
| $(obj)/$(SPL_BIN).cfg: include/config.h FORCE |
| $(call if_changed,cpp_cfg) |
| |
| 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 |
| |
| $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) 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) |