# Based on top-level Makefile.
#
+src := $(obj)
+
+# Create output directory if not already present
+_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
+
+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
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 := $(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/
LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \
drivers/power/pmic/
-LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/
+LIBS-$(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-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
LIBS-$(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 (,$(CONFIG_MX23)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
+ifneq (,$(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/
-ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
-LIBS-y += arch/$(ARCH)/imx-common/
-endif
-
LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
# Add GCC lib
ifeq ("$(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)
+PLATFORM_LIBS := $(SPLTREE)/arch/$(ARCH)/lib/lib.a
endif
-START := $(addprefix $(SPLTREE)/,$(START))
-LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
+LIBS-y := $(sort $(LIBS-y))
+
+__START := $(head-y)
+__LIBS := $(LIBS-y)
-__START := $(subst $(obj),,$(START))
-__LIBS := $(subst $(obj),,$(LIBS))
+START := $(addprefix $(obj)/,$(head-y))
+LIBS := $(addprefix $(obj)/,$(LIBS-y))
# Linker Script
ifdef CONFIG_SPL_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.
$(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)/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)/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 $@
+$(objtree)/SPL : $(obj)/u-boot-spl.bin
+ $(MAKE) $(build)=spl/arch/arm/imx-common $@
-ALL-y += $(obj)$(SPL_BIN).bin
+ALL-y += $(obj)/$(SPL_BIN).bin
ifdef CONFIG_SAMSUNG
-ALL-y += $(obj)$(BOARD)-spl.bin
+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 $< $@
+ifdef CONFIG_VAR_SIZE_SPL
+VAR_SIZE_PARAM = --vs
+else
+VAR_SIZE_PARAM =
+endif
+$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-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 $< $@
+$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)
+ $(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
+
+LDFLAGS_$(SPL_BIN) += -T 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) \
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-Map $(SPL_BIN).map -o $(SPL_BIN)
-$(obj)$(SPL_BIN): depend $(START) $(LIBS) $(obj)u-boot-spl.lds
+$(obj)/$(SPL_BIN): $(START) $(LIBS) $(obj)/u-boot-spl.lds
$(GEN_UBOOT)
$(START):
@:
-$(LIBS): depend
- $(MAKE) $(build) $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
+$(LIBS):
+ $(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
+
+# FIX ME
+cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
-$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
- $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
+$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
+ $(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
-depend: $(obj).depend
-.PHONY: depend
+PHONY += FORCE
+FORCE:
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
+# Declare the contents of the .PHONY variable as phony. We keep that
+# information in a variable so we can use it in if_changed and friends.
+.PHONY: $(PHONY)
projects / karo-tx-uboot.git / blobdiff