# # (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 # # SPDX-License-Identifier: GPL-2.0+ # # Based on top-level Makefile. # CONFIG_SPL_BUILD := y export CONFIG_SPL_BUILD ifeq ($(CONFIG_TPL_BUILD),y) export CONFIG_TPL_BUILD SPL_BIN := u-boot-tpl else SPL_BIN := u-boot-spl endif include $(TOPDIR)/config.mk # We want the final binaries in this directory ifeq ($(CONFIG_TPL_BUILD),y) obj := $(OBJTREE)/tpl/ SPLTREE := $(TPLTREE) else obj := $(OBJTREE)/spl/ endif 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 ifdef CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o endif 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 \ drivers/power/pmic/libpmic.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-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/libphy.o LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/libphy.o LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/libusb_musb-new.o LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/libusb_gadget.o LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/libwatchdog.o ifneq (,$(CONFIG_MX23)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35)) LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o endif LIBS-$(CONFIG_ARM) += arch/arm/cpu/libcpu.o ifneq ($(CONFIG_MX23)$(CONFIG_MX35),) LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o endif ifeq ($(SOC),exynos) LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o endif # Add GCC lib ifeq ("$(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-spl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) $(error could not find linker script) endif build := -f $(TOPDIR)/scripts/Makefile.build -C # 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) $(build) $(SRCTREE)/arch/arm/imx-common $@ ALL-y += $(obj)$(SPL_BIN).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 $(obj)$(SPL_BIN).bin: $(obj)$(SPL_BIN) $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@ GEN_UBOOT = \ cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \ --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \ -Map $(SPL_BIN).map -o $(SPL_BIN) $(obj)$(SPL_BIN): depend $(START) $(LIBS) $(obj)u-boot-spl.lds $(GEN_UBOOT) # Tentative step for Kbuild-style makefiles coexist with conventional U-Boot style makefiles # U-Boot conventional sub makefiles always include some other makefiles. # So, the build system searches a line beginning with "include" before entering into the sub makefile # in order to distinguish which style it is. # If the Makefile include a "include" line, we assume it is an U-Boot style makefile. # Otherwise, it is treated as a Kbuild-style makefile. select_makefile = \ if grep -q "^include" $1/Makefile; then \ $(MAKE) -C $1; \ else \ $(MAKE) -C $1 -f $(TOPDIR)/scripts/Makefile.build; \ mv $(dir $@)built-in.o $@; \ fi # We do not need to build $(START) explicitly. # It is built while we are at $(CPUDIR)/lib$(CPU).o build. $(START): depend if grep -q "^include" $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))Makefile; then \ $(MAKE) -C $(SRCTREE)/$(START_PATH) $@; \ fi $(LIBS): depend +$(call select_makefile, $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))) $(obj)u-boot-spl.lds: $(LDSCRIPT) depend $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@ depend: $(obj).depend .PHONY: depend # defines $(obj).depend target include $(SRCTREE)/rules.mk