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- #
- # (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 $(srctree)/scripts/Kbuild.include
- CONFIG_SPL_BUILD := y
- export CONFIG_SPL_BUILD
- KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
- ifeq ($(CONFIG_TPL_BUILD),y)
- KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
- endif
- ifeq ($(CONFIG_TPL_BUILD),y)
- export CONFIG_TPL_BUILD
- SPL_BIN := u-boot-tpl
- else
- SPL_BIN := u-boot-spl
- endif
- include include/config.mk
- ifeq ($(CONFIG_TPL_BUILD),y)
- -include include/tpl-autoconf.mk
- else
- -include include/spl-autoconf.mk
- endif
- include $(TOPDIR)/config.mk
- # 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)
- # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
- quiet_cmd_autoconf = GEN $@
- cmd_autoconf = \
- $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
- sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
- rm $@.tmp
- include/tpl-autoconf.mk: include/config.h
- $(call cmd,autoconf)
- include/spl-autoconf.mk: include/config.h
- $(call cmd,autoconf)
- HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
- ifdef CONFIG_SPL_START_S_PATH
- START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
- else
- START_PATH := $(CPUDIR)
- endif
- head-y := $(START_PATH)/start.o
- head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
- head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
- head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
- libs-y += arch/$(ARCH)/lib/
- libs-y += $(CPUDIR)/
- ifdef SOC
- libs-y += $(CPUDIR)/$(SOC)/
- endif
- libs-y += board/$(BOARDDIR)/
- libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
- libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
- libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
- libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
- libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
- libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
- libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
- libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
- libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
- libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
- libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
- libs-y += fs/
- libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
- libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
- libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
- libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
- libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
- libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
- libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
- libs-$(CONFIG_SPL_NET_SUPPORT) += net/
- libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
- libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
- libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
- libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
- libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
- libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
- libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
- libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
- libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
- ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
- libs-y += arch/$(ARCH)/imx-common/
- endif
- libs-$(CONFIG_ARM) += arch/arm/cpu/
- libs-$(CONFIG_PPC) += arch/powerpc/cpu/
- 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)
- # Linker Script
- ifdef CONFIG_SPL_LDSCRIPT
- # need to strip off double quotes
- LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
- endif
- ifeq ($(wildcard $(LDSCRIPT)),)
- LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
- endif
- ifeq ($(wildcard $(LDSCRIPT)),)
- LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
- endif
- ifeq ($(wildcard $(LDSCRIPT)),)
- LDSCRIPT := $(TOPDIR)/arch/$(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 $(TOPDIR)/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 = UIMAGE $@
- 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
- $(call if_changed,mkimage)
- ALL-y += $(obj)/$(SPL_BIN).bin
- ifdef CONFIG_SAMSUNG
- ALL-y += $(obj)/$(BOARD)-spl.bin
- endif
- all: $(ALL-y)
- 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).bin = $(SPL_OBJCFLAGS) -O binary
- $(obj)/$(SPL_BIN).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
- 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)) --end-group \
- $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)
- $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds
- $(call cmd,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):
- $(Q)$(MAKE) $(build)=$@
- quiet_cmd_cpp_lds = LDS $@
- cmd_cpp_lds = $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ \
- -x assembler-with-cpp -P -o $@ $<
- $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
- $(call if_changed,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)
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