# Based on top-level Makefile.
#
+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
+
+# Enable garbage collection of un-used sections for SPL
+KBUILD_CFLAGS += -ffunction-sections -fdata-sections
+LDFLAGS_FINAL += --gc-sections
+
ifeq ($(CONFIG_TPL_BUILD),y)
export CONFIG_TPL_BUILD
SPL_BIN := u-boot-tpl
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))
+START_PATH := $(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
+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/lib$(ARCH).o
+LIBS-y += arch/$(ARCH)/lib/
-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
+LIBS-y += $(CPUDIR)/
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
+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/
+
+LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
# Add GCC lib
ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
endif
-START := $(addprefix $(SPLTREE)/,$(START))
+START := $(addprefix $(SPLTREE)/,$(head-y))
LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
__START := $(subst $(obj),,$(START))
# Linker Script
ifdef CONFIG_SPL_LDSCRIPT
# need to strip off double quotes
-LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
+LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
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.
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
- $(OBJTREE)/tools/mk$(BOARD)spl \
- $(obj)u-boot-spl.bin $(obj)$(BOARD)-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
$(obj)$(SPL_BIN).bin: $(obj)$(SPL_BIN)
- $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
+ $(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
+
+LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
+ifneq ($(CONFIG_SPL_TEXT_BASE),)
+LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
+endif
GEN_UBOOT = \
cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
$(obj)$(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) $@; \
- fi
+$(START):
+ @:
$(LIBS): depend
- +$(call select_makefile, $(SRCTREE)$(dir $(subst $(SPLTREE),,$@)))
+ $(MAKE) $(build) $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
projects / oweals / u-boot.git / blobdiff