# # (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 # # 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 = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n) ifdef CONFIG_SPL_START_S_PATH START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH)) else START_PATH := $(CPUDIR) endif START := $(START_PATH)/start.o ifeq ($(CPU),x86) START += $(START_PATH)/start16.o START += $(START_PATH)/resetvec.o endif ifeq ($(CPU),ppc4xx) START += $(START_PATH)/resetvec.o endif ifeq ($(CPU),mpc85xx) START += $(START_PATH)/resetvec.o endif LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o LIBS-y += $(CPUDIR)/lib$(CPU).o ifeq ($(CPU),mpc83xx) LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o endif ifeq ($(CPU),mpc85xx) LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o endif ifeq ($(CPU),mpc86xx) LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o endif 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-$(CONFIG_SPL_FRAMEWORK) += common/spl/libspl.o LIBS-$(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-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/libnet.o LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/libnet.o LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/libphy.o ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),) LIBS-y += $(CPUDIR)/omap-common/libomap-common.o endif ifneq ($(CONFIG_TEGRA),) LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o LIBS-y += arch/$(ARCH)/cpu/tegra-common/libcputegra-common.o LIBS-y += $(CPUDIR)/tegra-common/libtegra-common.o endif # Add GCC lib ifeq ("$(USE_PRIVATE_LIBGCC)", "yes") PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC) 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)),) LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.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') $(OBJTREE)/MLO: $(obj)u-boot-spl.bin $(OBJTREE)/tools/mkimage -T omapimage \ -a $(CONFIG_SPL_TEXT_BASE) -d $< $@ $(OBJTREE)/MLO.byteswap: $(obj)u-boot-spl.bin $(OBJTREE)/tools/mkimage -T omapimage -n byteswap \ -a $(CONFIG_SPL_TEXT_BASE) -d $< $@ $(OBJTREE)/SPL : $(obj)u-boot-spl.bin depend $(MAKE) -C $(SRCTREE)/arch/arm/imx-common $@ ALL-y += $(obj)u-boot-spl.bin ifdef CONFIG_SAMSUNG ALL-y += $(obj)$(BOARD)-spl.bin endif all: $(ALL-y) ifdef CONFIG_SAMSUNG $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin $(OBJTREE)/tools/mk$(BOARD)spl \ $(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin endif $(obj)u-boot-spl.bin: $(obj)u-boot-spl $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@ GEN_UBOOT = \ cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__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 $(SRCTREE)/$(START_PATH) $@ $(LIBS): depend $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@)) # The following line expands into whole rule which generates u-boot.lst, # the file containing u-boots LG-array linker section. This is included into # $(LDSCRIPT). The function make_u_boot_list is defined in helper.mk file. $(eval $(call make_u_boot_list, $(obj)u-boot.lst, $(LIBS))) $(obj)u-boot-spl.lds: $(LDSCRIPT) $(obj)u-boot.lst depend $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@ depend: $(obj).depend .PHONY: depend # defines $(obj).depend target include $(SRCTREE)/rules.mk