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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>
- #
- # This file is released under the terms of GPL v2 and any later version.
- # See the file COPYING in the root directory of the source tree for details.
- #
- # Based on top-level Makefile.
- #
- CONFIG_SPL_BUILD := y
- export CONFIG_SPL_BUILD
- include $(TOPDIR)/config.mk
- # We want the final binaries in this directory
- obj := $(OBJTREE)/spl/
- HAVE_VENDOR_COMMON_LIB := $(shell [ -f $(SRCTREE)/board/$(VENDOR)/common/Makefile ] \
- && echo y || echo n)
- START := $(CPUDIR)/start.o
- LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
- LIBS-y += $(CPUDIR)/lib$(CPU).o
- ifdef SOC
- LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
- endif
- LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
- LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
- LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
- LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
- LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
- LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
- LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
- LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
- LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
- LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
- LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
- LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
- ifeq ($(SOC),omap3)
- LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
- endif
- ifeq ($(SOC),omap4)
- LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
- endif
- START := $(addprefix $(SPLTREE)/,$(START))
- LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
- __START := $(subst $(obj),,$(START))
- __LIBS := $(subst $(obj),,$(LIBS))
- # Linker Script
- ifdef CONFIG_SPL_LDSCRIPT
- # need to strip off double quotes
- LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
- endif
- ifeq ($(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)),)
- $(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 \
- $(shell $(LD) --version | \
- sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
- ALL-y += $(obj)u-boot-spl.bin
- all: $(ALL-y)
- $(obj)u-boot-spl.bin: $(obj)u-boot-spl
- $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
- GEN_UBOOT = \
- UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) | \
- sed -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
- cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__START) \
- --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
- -Map u-boot-spl.map -o u-boot-spl
- $(obj)u-boot-spl: depend $(START) $(LIBS) $(obj)u-boot-spl.lds
- $(GEN_UBOOT)
- $(START): depend
- $(MAKE) -C $(SRCTREE)/$(CPUDIR) $@
- $(LIBS): depend
- $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
- $(obj)u-boot-spl.lds: $(LDSCRIPT) depend
- $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@
- depend: $(obj).depend
- .PHONY: depend
- # defines $(obj).depend target
- include $(SRCTREE)/rules.mk
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