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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.
#
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
|
