X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=Makefile;h=6a190e7a894b7de0ca45ffc84eabb69a1d1919ed;hb=3ce4304205eac2bc19b9fd67651d65f7d19d3cf2;hp=ca7d60d610839ede7be37cee640bd3c969132674;hpb=089795090a627f4216c5f21eaf436ba1672cf02e;p=u-boot

diff --git a/Makefile b/Makefile
index ca7d60d610..6a190e7a89 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,7 @@
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
+# SPDX-License-Identifier: GPL-2.0+
 
-VERSION = 2017
-PATCHLEVEL = 05
+VERSION = 2018
+PATCHLEVEL = 07
 SUBLEVEL =
 EXTRAVERSION = -rc1
 NAME =
@@ -260,6 +258,15 @@ HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 		$(if $(CONFIG_TOOLS_DEBUG),-g)
 HOSTCXXFLAGS = -O2
 
+# With the move to GCC 6, we have implicitly upgraded our language
+# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
+# Some Linux distributions (including RHEL7, SLES13, Debian 8) still
+# have older compilers as their default, so we make it explicit for
+# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
+ifeq ($(HOSTOS),linux)
+HOSTCFLAGS += --std=gnu11
+endif
+
 ifeq ($(HOSTOS),cygwin)
 HOSTCFLAGS	+= -ansi
 endif
@@ -346,10 +353,14 @@ LDR		= $(CROSS_COMPILE)ldr
 STRIP		= $(CROSS_COMPILE)strip
 OBJCOPY		= $(CROSS_COMPILE)objcopy
 OBJDUMP		= $(CROSS_COMPILE)objdump
+LEX		= flex
+YACC		= bison
 AWK		= awk
 PERL		= perl
-PYTHON		= python
-DTC		= dtc
+PYTHON		?= python
+PYTHON2		= python2
+PYTHON3		= python3
+DTC		?= $(objtree)/scripts/dtc/dtc
 CHECK		= sparse
 
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
@@ -360,6 +371,7 @@ KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 		   -Wno-format-security \
 		   -fno-builtin -ffreestanding
+KBUILD_CFLAGS	+= -fshort-wchar
 KBUILD_AFLAGS   := -D__ASSEMBLY__
 
 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
@@ -370,7 +382,7 @@ export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
-export MAKE AWK PERL PYTHON
+export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 
 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
@@ -422,6 +434,7 @@ endif
 
 version_h := include/generated/version_autogenerated.h
 timestamp_h := include/generated/timestamp_autogenerated.h
+defaultenv_h := include/generated/defaultenv_autogenerated.h
 
 no-dot-config-targets := clean clobber mrproper distclean \
 			 help %docs check% coccicheck \
@@ -505,7 +518,7 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 # we execute the config step to be sure to catch updated Kconfig files
 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
-	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
+	$(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 	@# If the following part fails, include/config/auto.conf should be
 	@# deleted so "make silentoldconfig" will be re-run on the next build.
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
@@ -516,6 +529,9 @@ include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 	@# Otherwise, 'make silentoldconfig' would be invoked twice.
 	$(Q)touch include/config/auto.conf
 
+u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
+
 -include include/autoconf.mk
 -include include/autoconf.mk.dep
 
@@ -590,17 +606,31 @@ endif
 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 
+# change __FILE__ to the relative path from the srctree
+KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
+
 KBUILD_CFLAGS	+= -g
 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 # option to the assembler.
 KBUILD_AFLAGS	+= -g
 
 # Report stack usage if supported
+# ARC tools based on GCC 7.1 has an issue with stack usage
+# with naked functions, see commit message for more details
+ifndef CONFIG_ARC
 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 	KBUILD_CFLAGS += -fstack-usage
 endif
+endif
 
 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
+ifeq ($(cc-name),clang)
+KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
+KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
+KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
+KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
+endif
 
 # turn jbsr into jsr for m68k
 ifeq ($(ARCH),m68k)
@@ -653,7 +683,6 @@ libs-y += drivers/
 libs-y += drivers/dma/
 libs-y += drivers/gpio/
 libs-y += drivers/i2c/
-libs-y += drivers/mmc/
 libs-y += drivers/mtd/
 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 libs-y += drivers/mtd/onenand/
@@ -688,6 +717,7 @@ libs-y += drivers/usb/phy/
 libs-y += drivers/usb/ulpi/
 libs-y += cmd/
 libs-y += common/
+libs-y += env/
 libs-$(CONFIG_API) += api/
 libs-$(CONFIG_HAS_POST) += post/
 libs-y += test/
@@ -716,6 +746,12 @@ else
 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 endif
 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
+
+ifdef CONFIG_CC_COVERAGE
+KBUILD_CFLAGS += --coverage
+PLATFORM_LIBGCC += -lgcov
+endif
+
 export PLATFORM_LIBS
 export PLATFORM_LIBGCC
 
@@ -747,6 +783,9 @@ BOARD_SIZE_CHECK =
 endif
 
 # Statically apply RELA-style relocations (currently arm64 only)
+# This is useful for arm64 where static relocation needs to be performed on
+# the raw binary, but certain simulators only accept an ELF file (but don't
+# do the relocation).
 ifneq ($(CONFIG_STATIC_RELA),)
 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 DO_STATIC_RELA = \
@@ -774,8 +813,12 @@ ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 else
+ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
+ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
+else
 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 endif
+endif
 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
@@ -789,10 +832,15 @@ ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 
-ifneq ($(BUILD_ROM),)
+ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 endif
 
+# Build a combined spl + u-boot image for sunxi
+ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
+ALL-y += u-boot-sunxi-with-spl.bin
+endif
+
 # enable combined SPL/u-boot/dtb rules for tegra
 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
@@ -804,8 +852,16 @@ ifneq ($(CONFIG_BUILD_TARGET),)
 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 endif
 
+ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
+ALL-y += init_sp_bss_offset_check
+endif
+
 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
-ifneq ($(CONFIG_SYS_TEXT_BASE),)
+
+# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
+LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
+
+ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 endif
 
@@ -825,7 +881,11 @@ MKIMAGEOUTPUT ?= /dev/null
 
 quiet_cmd_mkimage = MKIMAGE $@
 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
-	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
+	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
+
+quiet_cmd_mkfitimage = MKIMAGE $@
+cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
+	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 
 quiet_cmd_cat = CAT     $@
 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
@@ -841,7 +901,7 @@ quiet_cmd_cfgcheck = CFGCHK  $2
 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 		$(srctree)/scripts/config_whitelist.txt $(srctree)
 
-all:		$(ALL-y)
+all:		$(ALL-y) cfg
 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 	@echo "===================== WARNING ======================"
 	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
@@ -857,13 +917,27 @@ endif
 PHONY += dtbs
 dtbs: dts/dt.dtb
 	@:
-dts/dt.dtb: checkdtc u-boot
+dts/dt.dtb: u-boot
 	$(Q)$(MAKE) $(build)=dts dtbs
 
 quiet_cmd_copy = COPY    $@
       cmd_copy = cp $< $@
 
-ifeq ($(CONFIG_OF_SEPARATE),y)
+ifeq ($(CONFIG_MULTI_DTB_FIT),y)
+
+fit-dtb.blob: dts/dt.dtb FORCE
+	$(call if_changed,mkimage)
+
+MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
+	-a 0 -e 0 -E \
+	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
+
+u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
+	$(call if_changed,cat)
+
+u-boot.bin: u-boot-fit-dtb.bin FORCE
+	$(call if_changed,copy)
+else ifeq ($(CONFIG_OF_SEPARATE),y)
 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
 	$(call if_changed,cat)
 
@@ -875,7 +949,7 @@ u-boot.bin: u-boot-nodtb.bin FORCE
 endif
 
 %.imx: %.bin
-	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
+	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
 
 %.vyb: %.imx
 	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
@@ -893,6 +967,16 @@ OBJCOPYFLAGS_u-boot.srec := -O srec
 u-boot.hex u-boot.srec: u-boot FORCE
 	$(call if_changed,objcopy)
 
+OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
+
+u-boot-elf.srec: u-boot.elf FORCE
+	$(call if_changed,objcopy)
+
+OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
+
+spl/u-boot-spl.srec: spl/u-boot-spl FORCE
+	$(call if_changed,objcopy)
+
 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
 		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
 
@@ -910,6 +994,33 @@ binary_size_check: u-boot-nodtb.bin FORCE
 		fi \
 	fi
 
+ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
+ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
+subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
+else
+subtract_sys_malloc_f_len = true
+endif
+# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
+# so low that the DTB could probably use 90%+ of the available space, for
+# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
+# safe for now and tweak this later if space becomes tight.
+# A rejected alternative would be to check that some absolute minimum stack
+# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
+# deliberately build-specific, to take account of build-to-build stack usage
+# differences due to different feature sets, there is no common absolute value
+# to check against.
+init_sp_bss_offset_check: u-boot.dtb FORCE
+	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
+	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
+	$(subtract_sys_malloc_f_len) ; \
+	quarter_space=$$(($${space} / 4)) ; \
+	if [ $${dtb_size} -gt $${quarter_space} ]; then \
+		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
+		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
+		exit 1 ; \
+	fi
+endif
+
 u-boot-nodtb.bin: u-boot FORCE
 	$(call if_changed,objcopy)
 	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
@@ -946,6 +1057,19 @@ quiet_cmd_cpp_cfg = CFG     $@
 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 
+# Boards with more complex image requirments can provide an .its source file
+# or a generator script
+ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
+U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
+else
+ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
+U_BOOT_ITS := u-boot.its
+$(U_BOOT_ITS): FORCE
+	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
+	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
+endif
+endif
+
 ifdef CONFIG_SPL_LOAD_FIT
 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
@@ -978,6 +1102,10 @@ u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
 		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
 	$(call if_changed,mkimage)
 
+u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
+	$(call if_changed,mkfitimage)
+	$(BOARD_SIZE_CHECK)
+
 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
 	$(call if_changed,mkimage)
 
@@ -1024,10 +1152,10 @@ tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
 	$(call if_changed,pad_cat)
 
 SPL: spl/u-boot-spl.bin FORCE
-	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
+	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
 
 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
-	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
+	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
 
 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
 
@@ -1099,11 +1227,21 @@ u-boot-x86-16bit.bin: u-boot FORCE
 endif
 
 ifneq ($(CONFIG_ARCH_SUNXI),)
+ifeq ($(CONFIG_ARM64),)
 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
 	$(call if_changed,binman)
+else
+u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
+	$(call if_changed,cat)
+endif
 endif
 
 ifneq ($(CONFIG_TEGRA),)
+ifneq ($(CONFIG_BINMAN),)
+u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
+		spl/u-boot-spl u-boot.bin FORCE
+	$(call if_changed,binman)
+else
 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
 	$(call if_changed,pad_cat)
@@ -1114,6 +1252,7 @@ u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
 
 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
 	$(call if_changed,copy)
+endif  # binman
 endif
 
 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
@@ -1176,17 +1315,19 @@ OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
 	$(call if_changed,pad_cat)
 
-# Create a new ELF from a raw binary file.  This is useful for arm64
-# where static relocation needs to be performed on the raw binary,
-# but certain simulators only accept an ELF file (but don't do the
-# relocation).
-# FIXME refactor dts/Makefile to share target/arch detection
+# Create a new ELF from a raw binary file.
+ifndef PLATFORM_ELFENTRY
+  PLATFORM_ELFENTRY = "_start"
+endif
+quiet_cmd_u-boot-elf ?= LD      $@
+	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
+	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
+	-Ttext=$(CONFIG_SYS_TEXT_BASE)
 u-boot.elf: u-boot.bin
-	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
-		$< u-boot-elf.o
-	@$(LD) u-boot-elf.o -o $@ \
-		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
-		-Ttext=$(CONFIG_SYS_TEXT_BASE)
+	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
+	$(call if_changed,u-boot-elf)
+
+ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
 
 # Rule to link u-boot
 # May be overridden by arch/$(ARCH)/config.mk
@@ -1194,7 +1335,8 @@ quiet_cmd_u-boot__ ?= LD      $@
       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
       -T u-boot.lds $(u-boot-init)                             \
       --start-group $(u-boot-main) --end-group                 \
-      $(PLATFORM_LIBS) -Map u-boot.map
+      $(PLATFORM_LIBS) -Map u-boot.map;                        \
+      $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
 
 quiet_cmd_smap = GEN     common/system_map.o
 cmd_smap = \
@@ -1204,12 +1346,16 @@ cmd_smap = \
 		-c $(srctree)/common/system_map.c -o common/system_map.o
 
 u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
-	$(call if_changed,u-boot__)
+	+$(call if_changed,u-boot__)
 ifeq ($(CONFIG_KALLSYMS),y)
 	$(call cmd,smap)
 	$(call cmd,u-boot__) common/system_map.o
 endif
 
+ifeq ($(CONFIG_RISCV),y)
+	@tools/prelink-riscv $@ 0
+endif
+
 quiet_cmd_sym ?= SYM     $@
       cmd_sym ?= $(OBJDUMP) -t $< > $@
 u-boot.sym: u-boot FORCE
@@ -1277,6 +1423,10 @@ ifeq ($(wildcard $(LDSCRIPT)),)
 	@/bin/false
 endif
 
+ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
+prepare1: $(defaultenv_h)
+endif
+
 archprepare: prepare1 scripts_basic
 
 prepare0: archprepare FORCE
@@ -1311,6 +1461,7 @@ define filechk_timestamp.h
 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
+			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
 		else \
 			return 42; \
 		fi; \
@@ -1319,15 +1470,27 @@ define filechk_timestamp.h
 		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
 		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
 		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
+		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
 	fi)
 endef
 
+define filechk_defaultenv.h
+	(grep -v '^#' | \
+	 grep -v '^$$' | \
+	 tr '\n' '\0' | \
+	 sed -e 's/\\\x0/\n/' | \
+	 xxd -i ; echo ", 0x00" ; )
+endef
+
 $(version_h): include/config/uboot.release FORCE
 	$(call filechk,version.h)
 
 $(timestamp_h): $(srctree)/Makefile FORCE
 	$(call filechk,timestamp.h)
 
+$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
+	$(call filechk,defaultenv.h)
+
 # ---------------------------------------------------------------------------
 quiet_cmd_cpp_lds = LDS     $@
 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
@@ -1339,7 +1502,8 @@ u-boot.lds: $(LDSCRIPT) prepare FORCE
 spl/u-boot-spl.bin: spl/u-boot-spl
 	@:
 spl/u-boot-spl: tools prepare \
-		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
+		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
+		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
 	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
 
 spl/sunxi-spl.bin: spl/u-boot-spl
@@ -1355,7 +1519,7 @@ spl/boot.bin: spl/u-boot-spl
 	@:
 
 tpl/u-boot-tpl.bin: tools prepare \
-		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
+		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
 	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
 
 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
@@ -1383,12 +1547,6 @@ SYSTEM_MAP = \
 System.map:	u-boot
 		@$(call SYSTEM_MAP,$<) > $@
 
-checkdtc:
-	@if test $(call dtc-version) -lt 0104; then \
-		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
-		false; \
-	fi
-
 #########################################################################
 
 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
@@ -1402,14 +1560,14 @@ checkarmreloc: u-boot
 		false; \
 	fi
 
-env: scripts_basic
-	$(Q)$(MAKE) $(build)=tools/$@
+envtools: scripts_basic $(version_h) $(timestamp_h)
+	$(Q)$(MAKE) $(build)=tools/env
 
 tools-only: scripts_basic $(version_h) $(timestamp_h)
 	$(Q)$(MAKE) $(build)=tools
 
 tools-all: export HOST_TOOLS_ALL=y
-tools-all: env tools ;
+tools-all: envtools tools ;
 
 cross_tools: export CROSS_BUILD_TOOLS=y
 cross_tools: tools ;
@@ -1434,7 +1592,7 @@ CLEAN_DIRS  += $(MODVERDIR) \
 			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
 
 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
-	       boot* u-boot* MLO* SPL System.map
+	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
 
 # Directories & files removed with 'make mrproper'
 MRPROPER_DIRS  += include/config include/generated spl tpl \
@@ -1463,10 +1621,12 @@ clean: $(clean-dirs)
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
+		-o -name '*.lex.c' -o -name '*.tab.[ch]' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
 		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
-		-o -name '*.gcno' \) -type f -print | xargs rm -f
+		-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
+		-type f -print | xargs rm -f
 
 # mrproper - Delete all generated files, including .config
 #
@@ -1523,9 +1683,11 @@ help:
 	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
 	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
 	@echo  "  cfg		  - Don't build, just create the .cfg files"
+	@echo  "  envtools	  - Build only the target-side environment tools"
 	@echo  ''
 	@echo  'Static analysers'
 	@echo  '  checkstack      - Generate a list of stack hogs'
+	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
 	@echo  ''
 	@echo  'Documentation targets:'
 	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
@@ -1618,6 +1780,14 @@ endif
 	$(build)=$(build-dir) $(@:.ko=.o)
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
 
+# Consistency checks
+# ---------------------------------------------------------------------------
+
+PHONY += coccicheck
+
+coccicheck:
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
+
 # FIXME Should go into a make.lib or something
 # ===========================================================================