LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/libusb_gadget.o
LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/libwatchdog.o
-ifneq ($(CONFIG_OMAP_COMMON),)
-LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
-endif
-
ifneq (,$(CONFIG_MX23)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
LIBS-y += arch/$(ARCH)/imx-common/libimx-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 += $(CPUDIR)/tegra-common/libtegra-common.o
-endif
+LIBS-$(CONFIG_ARM) += arch/arm/cpu/libcpu.o
ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
$(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.
-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
$(OBJTREE)/SPL : $(obj)u-boot-spl.bin depend
- $(MAKE) -C $(SRCTREE)/arch/arm/imx-common $@
+ $(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $@
ALL-y += $(obj)$(SPL_BIN).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
- $(MAKE) -C $(SRCTREE)/$(START_PATH) $@
+ if grep -q "^include" $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))Makefile; then \
+ $(MAKE) -C $(SRCTREE)/$(START_PATH) $@; \
+ fi
$(LIBS): depend
- $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
+ +$(call select_makefile, $(SRCTREE)$(dir $(subst $(SPLTREE),,$@)))
$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@