Merge branch 'u-boot/master' into 'u-boot-arm/master'

Conflicts: Makefile drivers/net/npe/Makefile These two conflicts arise from commit 0b2d3f20 ("ARM: NET: Remove the IXP NPE ethernet driver") and are resolved by deleting the drivers/net/npe/Makefile file and removing the CONFIG_IXP4XX_NPE line from Makefile.
author: Albert ARIBAUD <albert.u.boot@aribaud.net> 2014-02-20 13:16:05 +0100
committer: Albert ARIBAUD <albert.u.boot@aribaud.net> 2014-02-20 13:16:05 +0100
commit: 3e11350255d9c5d4bd03c2a65769da84c05d3294 (patch)
tree: 2ebc3d0fa0592479020d2d9dc7228b4d15ed2eaa
parent: e7538fee991308c16f76f7eca2517089f2a30ff4 (diff)
parent: 0a8e823ad0c5a602c93c2e8a54caf622ade6d3fb (diff)
download: u-boot-imx-3e11350255d9c5d4bd03c2a65769da84c05d3294.zip
u-boot-imx-3e11350255d9c5d4bd03c2a65769da84c05d3294.tar.gz
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283 files changed, 4334 insertions, 2548 deletions
diff --git a/.gitignore b/.gitignore
index d7d5538..5882ff5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,16 +5,20 @@
 #
 # Normal rules
 #
-
-*.rej
-*.orig
-*.a
+.*
 *.o
+*.o.*
+*.a
+*.s
 *.su
-*~
+*.mod.c
+*.i
+*.lst
+*.order
+*.elf
 *.swp
-*.patch
 *.bin
+*.patch
 *.cfgtmp
 *.dts.tmp
 
@@ -24,12 +28,10 @@
 #
 # Top-level generic files
 #
-
 /MLO*
 /SPL
 /System.map
 /u-boot
-/u-boot.elf
 /u-boot.hex
 /u-boot.imx
 /u-boot-with-spl.imx
@@ -46,14 +48,18 @@
 /u-boot.lds
 /u-boot.ubl
 /u-boot.ais
-/u-boot.dtb
 /u-boot.sb
 
 #
+# git files that we don't want to ignore even it they are dot-files
+#
+!.gitignore
+!.mailmap
+
+#
 # Generated files
 #
 
-*.depend*
 /LOG
 /errlog
 /reloc_off
@@ -65,7 +71,6 @@
 /include/generated/
 /include/spl-autoconf.mk
 /include/tpl-autoconf.mk
-asm-offsets.s
 
 # stgit generated dirs
 patches-*
@@ -91,3 +96,7 @@ GPATH
 GRTAGS
 GSYMS
 GTAGS
+
+*.orig
+*~
+\#*#
diff --git a/MAKEALL b/MAKEALL
index 8fedea2..705a0bb 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -672,8 +672,6 @@ build_target() {
 		output_dir="${OUTPUT_PREFIX}"
 	fi
 
-	export BUILD_DIR="${output_dir}"
-
 	target_arch=$(get_target_arch ${target})
 	eval cross_toolchain=\$CROSS_COMPILE_`echo $target_arch | tr '[:lower:]' '[:upper:]'`
 	if [ "${cross_toolchain}" ] ; then
@@ -684,6 +682,10 @@ build_target() {
 	    MAKE=make
 	fi
 
+	if [  "${output_dir}" != "." ] ; then
+		MAKE="${MAKE} O=${output_dir}"
+	fi
+
 	${MAKE} distclean >/dev/null
 	${MAKE} -s ${target}_config
 
@@ -698,7 +700,7 @@ build_target() {
 	if [ $BUILD_MANY == 1 ] ; then
 		trap - TERM
 
-		${MAKE} -s tidy
+		${MAKE} -s clean
 
 		if [ -s ${LOG_DIR}/${target}.ERR ] ; then
 			cp ${LOG_DIR}/${target}.ERR ${OUTPUT_PREFIX}/ERR/${target}
diff --git a/Makefile b/Makefile
index 0e07aa5..9a530b3 100644
--- a/Makefile
+++ b/Makefile
@@ -6,16 +6,182 @@
 #
 
 VERSION = 2014
-PATCHLEVEL = 01
+PATCHLEVEL = 04
 SUBLEVEL =
-EXTRAVERSION =
-ifneq "$(SUBLEVEL)" ""
-U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
+EXTRAVERSION = -rc1
+NAME =
+
+# *DOCUMENTATION*
+# To see a list of typical targets execute "make help"
+# More info can be located in ./README
+# Comments in this file are targeted only to the developer, do not
+# expect to learn how to build the kernel reading this file.
+
+# Do not:
+# o  use make's built-in rules and variables
+#    (this increases performance and avoids hard-to-debug behaviour);
+# o  print "Entering directory ...";
+MAKEFLAGS += -rR --no-print-directory
+
+# Avoid funny character set dependencies
+unexport LC_ALL
+LC_COLLATE=C
+LC_NUMERIC=C
+export LC_COLLATE LC_NUMERIC
+
+# We are using a recursive build, so we need to do a little thinking
+# to get the ordering right.
+#
+# Most importantly: sub-Makefiles should only ever modify files in
+# their own directory. If in some directory we have a dependency on
+# a file in another dir (which doesn't happen often, but it's often
+# unavoidable when linking the built-in.o targets which finally
+# turn into vmlinux), we will call a sub make in that other dir, and
+# after that we are sure that everything which is in that other dir
+# is now up to date.
+#
+# The only cases where we need to modify files which have global
+# effects are thus separated out and done before the recursive
+# descending is started. They are now explicitly listed as the
+# prepare rule.
+
+# To put more focus on warnings, be less verbose as default
+# Use 'make V=1' to see the full commands
+
+ifeq ("$(origin V)", "command line")
+  KBUILD_VERBOSE = $(V)
+endif
+ifndef KBUILD_VERBOSE
+  KBUILD_VERBOSE = 0
+endif
+
+# Call a source code checker (by default, "sparse") as part of the
+# C compilation.
+#
+# Use 'make C=1' to enable checking of only re-compiled files.
+# Use 'make C=2' to enable checking of *all* source files, regardless
+# of whether they are re-compiled or not.
+#
+# See the file "Documentation/sparse.txt" for more details, including
+# where to get the "sparse" utility.
+
+ifeq ("$(origin C)", "command line")
+  KBUILD_CHECKSRC = $(C)
+endif
+ifndef KBUILD_CHECKSRC
+  KBUILD_CHECKSRC = 0
+endif
+
+# Use make M=dir to specify directory of external module to build
+# Old syntax make ... SUBDIRS=$PWD is still supported
+# Setting the environment variable KBUILD_EXTMOD take precedence
+ifdef SUBDIRS
+  KBUILD_EXTMOD ?= $(SUBDIRS)
+endif
+
+ifeq ("$(origin M)", "command line")
+  KBUILD_EXTMOD := $(M)
+endif
+
+# kbuild supports saving output files in a separate directory.
+# To locate output files in a separate directory two syntaxes are supported.
+# In both cases the working directory must be the root of the kernel src.
+# 1) O=
+# Use "make O=dir/to/store/output/files/"
+#
+# 2) Set KBUILD_OUTPUT
+# Set the environment variable KBUILD_OUTPUT to point to the directory
+# where the output files shall be placed.
+# export KBUILD_OUTPUT=dir/to/store/output/files/
+# make
+#
+# The O= assignment takes precedence over the KBUILD_OUTPUT environment
+# variable.
+
+
+# KBUILD_SRC is set on invocation of make in OBJ directory
+# KBUILD_SRC is not intended to be used by the regular user (for now)
+ifeq ($(KBUILD_SRC),)
+
+# OK, Make called in directory where kernel src resides
+# Do we want to locate output files in a separate directory?
+ifeq ("$(origin O)", "command line")
+  KBUILD_OUTPUT := $(O)
+endif
+
+ifeq ("$(origin W)", "command line")
+  export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
+endif
+
+# That's our default target when none is given on the command line
+PHONY := _all
+_all:
+
+# Cancel implicit rules on top Makefile
+$(CURDIR)/Makefile Makefile: ;
+
+ifneq ($(KBUILD_OUTPUT),)
+# Invoke a second make in the output directory, passing relevant variables
+# check that the output directory actually exists
+saved-output := $(KBUILD_OUTPUT)
+KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
+$(if $(KBUILD_OUTPUT),, \
+     $(error output directory "$(saved-output)" does not exist))
+
+PHONY += $(MAKECMDGOALS) sub-make
+
+$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
+	@:
+
+sub-make: FORCE
+	$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
+	KBUILD_SRC=$(CURDIR) \
+	KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
+	$(filter-out _all sub-make,$(MAKECMDGOALS))
+
+# Leave processing to above invocation of make
+skip-makefile := 1
+endif # ifneq ($(KBUILD_OUTPUT),)
+endif # ifeq ($(KBUILD_SRC),)
+
+# We process the rest of the Makefile if this is the final invocation of make
+ifeq ($(skip-makefile),)
+
+# If building an external module we do not care about the all: rule
+# but instead _all depend on modules
+PHONY += all
+ifeq ($(KBUILD_EXTMOD),)
+_all: all
 else
-U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
+_all: modules
 endif
-TIMESTAMP_FILE = $(obj)include/generated/timestamp_autogenerated.h
-VERSION_FILE = $(obj)include/generated/version_autogenerated.h
+
+srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
+objtree		:= $(CURDIR)
+src		:= $(srctree)
+obj		:= $(objtree)
+
+VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
+
+export srctree objtree VPATH
+
+OBJTREE		:= $(objtree)
+SPLTREE		:= $(OBJTREE)/spl
+TPLTREE		:= $(OBJTREE)/tpl
+SRCTREE		:= $(srctree)
+TOPDIR		:= $(SRCTREE)
+export	TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
+
+MKCONFIG	:= $(SRCTREE)/mkconfig
+export MKCONFIG
+
+# Make sure CDPATH settings don't interfere
+unexport CDPATH
+
+#########################################################################
+
+TIMESTAMP_FILE = include/generated/timestamp_autogenerated.h
+VERSION_FILE = include/generated/version_autogenerated.h
 
 HOSTARCH := $(shell uname -m | \
 	sed -e s/i.86/x86/ \
@@ -36,139 +202,291 @@ export	HOSTARCH HOSTOS
 VENDOR=
 
 #########################################################################
-# Allow for silent builds
-ifeq (,$(findstring s,$(MAKEFLAGS)))
-XECHO = echo
-else
-XECHO = :
+
+# set default to nothing for native builds
+ifeq ($(HOSTARCH),$(ARCH))
+CROSS_COMPILE ?=
 endif
 
-#########################################################################
+# SHELL used by kbuild
+CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
+	  else if [ -x /bin/bash ]; then echo /bin/bash; \
+	  else echo sh; fi ; fi)
+
+HOSTCC       = gcc
+HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
+
+ifeq ($(HOSTOS),cygwin)
+HOSTCFLAGS	+= -ansi
+endif
+
+# Mac OS X / Darwin's C preprocessor is Apple specific.  It
+# generates numerous errors and warnings.  We want to bypass it
+# and use GNU C's cpp.	To do this we pass the -traditional-cpp
+# option to the compiler.  Note that the -traditional-cpp flag
+# DOES NOT have the same semantics as GNU C's flag, all it does
+# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 #
-# U-boot build supports generating object files in a separate external
-# directory. Two use cases are supported:
+# Apple's linker is similar, thanks to the new 2 stage linking
+# multiple symbol definitions are treated as errors, hence the
+# -multiply_defined suppress option to turn off this error.
 #
-# 1) Add O= to the make command line
-# 'make O=/tmp/build all'
+ifeq ($(HOSTOS),darwin)
+# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
+DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
+DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
+
+os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
+	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
+
+# Snow Leopards build environment has no longer restrictions as described above
+HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
+HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
+HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
+endif
+
+# Decide whether to build built-in, modular, or both.
+# Normally, just do built-in.
+
+KBUILD_MODULES :=
+KBUILD_BUILTIN := 1
+
+#	If we have only "make modules", don't compile built-in objects.
+#	When we're building modules with modversions, we need to consider
+#	the built-in objects during the descend as well, in order to
+#	make sure the checksums are up to date before we record them.
+
+ifeq ($(MAKECMDGOALS),modules)
+  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
+endif
+
+#	If we have "make <whatever> modules", compile modules
+#	in addition to whatever we do anyway.
+#	Just "make" or "make all" shall build modules as well
+
+# U-Boot does not need modules
+#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
+#  KBUILD_MODULES := 1
+#endif
+
+#ifeq ($(MAKECMDGOALS),)
+#  KBUILD_MODULES := 1
+#endif
+
+export KBUILD_MODULES KBUILD_BUILTIN
+export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
+
+# Beautify output
+# ---------------------------------------------------------------------------
+#
+# Normally, we echo the whole command before executing it. By making
+# that echo $($(quiet)$(cmd)), we now have the possibility to set
+# $(quiet) to choose other forms of output instead, e.g.
 #
-# 2) Set environment variable BUILD_DIR to point to the desired location
-# 'export BUILD_DIR=/tmp/build'
-# 'make'
+#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
+#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
 #
-# The second approach can also be used with a MAKEALL script
-# 'export BUILD_DIR=/tmp/build'
-# './MAKEALL'
+# If $(quiet) is empty, the whole command will be printed.
+# If it is set to "quiet_", only the short version will be printed. 
+# If it is set to "silent_", nothing will be printed at all, since
+# the variable $(silent_cmd_cc_o_c) doesn't exist.
 #
-# Command line 'O=' setting overrides BUILD_DIR environment variable.
+# A simple variant is to prefix commands with $(Q) - that's useful
+# for commands that shall be hidden in non-verbose mode.
 #
-# When none of the above methods is used the local build is performed and
-# the object files are placed in the source directory.
+#	$(Q)ln $@ :<
 #
+# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
+# If KBUILD_VERBOSE equals 1 then the above command is displayed.
 
-ifeq ("$(origin O)", "command line")
-BUILD_DIR := $(O)
+ifeq ($(KBUILD_VERBOSE),1)
+  quiet =
+  Q =
+else
+  quiet=quiet_
+  Q = @
 endif
 
-# Call a source code checker (by default, "sparse") as part of the
-# C compilation.
-#
-# Use 'make C=1' to enable checking of re-compiled files.
-#
-# See the linux kernel file "Documentation/sparse.txt" for more details,
-# including where to get the "sparse" utility.
+# If the user is running make -s (silent mode), suppress echoing of
+# commands
 
-ifdef C
-ifeq ("$(origin C)", "command line")
-CHECKSRC := $(C)
-endif
+ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
+  quiet=silent_
 endif
-ifndef CHECKSRC
-  CHECKSRC = 0
-endif
-export CHECKSRC
 
-ifneq ($(BUILD_DIR),)
-saved-output := $(BUILD_DIR)
+export quiet Q KBUILD_VERBOSE
 
-# Attempt to create a output directory.
-$(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR})
 
-# Verify if it was successful.
-BUILD_DIR := $(shell cd $(BUILD_DIR) && /bin/pwd)
-$(if $(BUILD_DIR),,$(error output directory "$(saved-output)" does not exist))
-endif # ifneq ($(BUILD_DIR),)
+# Look for make include files relative to root of kernel src
+MAKEFLAGS += --include-dir=$(srctree)
 
-OBJTREE		:= $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
-SPLTREE		:= $(OBJTREE)/spl
-TPLTREE		:= $(OBJTREE)/tpl
-SRCTREE		:= $(CURDIR)
-TOPDIR		:= $(SRCTREE)
-LNDIR		:= $(OBJTREE)
-export	TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
+# We need some generic definitions (do not try to remake the file).
+$(srctree)/scripts/Kbuild.include: ;
+include $(srctree)/scripts/Kbuild.include
 
-MKCONFIG	:= $(SRCTREE)/mkconfig
-export MKCONFIG
+# Make variables (CC, etc...)
 
-# $(obj) and (src) are defined in config.mk but here in main Makefile
-# we also need them before config.mk is included which is the case for
-# some targets like unconfig, clean, clobber, distclean, etc.
-ifneq ($(OBJTREE),$(SRCTREE))
-obj := $(OBJTREE)/
-src := $(SRCTREE)/
+AS		= $(CROSS_COMPILE)as
+# Always use GNU ld
+ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
+LD		= $(CROSS_COMPILE)ld.bfd
 else
-obj :=
-src :=
+LD		= $(CROSS_COMPILE)ld
+endif
+CC		= $(CROSS_COMPILE)gcc
+CPP		= $(CC) -E
+AR		= $(CROSS_COMPILE)ar
+NM		= $(CROSS_COMPILE)nm
+LDR		= $(CROSS_COMPILE)ldr
+STRIP		= $(CROSS_COMPILE)strip
+OBJCOPY		= $(CROSS_COMPILE)objcopy
+OBJDUMP		= $(CROSS_COMPILE)objdump
+AWK		= awk
+RANLIB		= $(CROSS_COMPILE)RANLIB
+DTC		= dtc
+CHECK		= sparse
+
+CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
+		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
+
+KBUILD_CPPFLAGS := -D__KERNEL__
+
+KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
+		   -Wno-format-security \
+		   -fno-builtin -ffreestanding
+KBUILD_AFLAGS   := -D__ASSEMBLY__
+
+U_BOOT_VERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
+
+export VERSION PATCHLEVEL SUBLEVEL U_BOOT_VERSION
+export ARCH CPU BOARD VENDOR SOC
+export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
+export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
+export MAKE AWK
+export DTC CHECK CHECKFLAGS
+
+export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
+export KBUILD_CFLAGS KBUILD_AFLAGS
+
+# When compiling out-of-tree modules, put MODVERDIR in the module
+# tree rather than in the kernel tree. The kernel tree might
+# even be read-only.
+export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
+
+# Files to ignore in find ... statements
+
+RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
+		   -o -name .pc -o -name .hg -o -name .git \) -prune -o
+export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
+			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
+
+# ===========================================================================
+# Rules shared between *config targets and build targets
+
+# Basic helpers built in scripts/
+PHONY += scripts_basic
+scripts_basic:
+	$(Q)$(MAKE) $(build)=scripts/basic
+	$(Q)rm -f .tmp_quiet_recordmcount
+
+# To avoid any implicit rule to kick in, define an empty command.
+scripts/basic/%: scripts_basic ;
+
+PHONY += outputmakefile
+# outputmakefile generates a Makefile in the output directory, if using a
+# separate output directory. This allows convenient use of make in the
+# output directory.
+outputmakefile:
+ifneq ($(KBUILD_SRC),)
+	$(Q)ln -fsn $(srctree) source
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
+	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 endif
-export obj src
 
-# Make sure CDPATH settings don't interfere
-unexport CDPATH
+# To make sure we do not include .config for any of the *config targets
+# catch them early, and hand them over to scripts/kconfig/Makefile
+# It is allowed to specify more targets when calling make, including
+# mixing *config targets and build targets.
+# For example 'make oldconfig all'.
+# Detect when mixed targets is specified, and make a second invocation
+# of make so .config is not included in this case either (for *config).
+
+no-dot-config-targets := clean clobber mrproper distclean \
+			 cscope TAGS %tags help %docs check% coccicheck \
+			 backup
+
+config-targets := 0
+mixed-targets  := 0
+dot-config     := 1
+
+ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
+	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
+		dot-config := 0
+	endif
+endif
 
-#########################################################################
+ifeq ($(KBUILD_EXTMOD),)
+        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
+                config-targets := 1
+                ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
+                        mixed-targets := 1
+                endif
+        endif
+endif
 
-# The "tools" are needed early, so put this first
-# Don't include stuff already done in $(LIBS)
-# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
-# is "yes"), so compile examples after U-Boot is compiled.
-SUBDIR_TOOLS = tools
-SUBDIRS = $(SUBDIR_TOOLS)
+ifeq ($(mixed-targets),1)
+# ===========================================================================
+# We're called with mixed targets (*config and build targets).
+# Handle them one by one.
+
+PHONY += $(MAKECMDGOALS) build-one-by-one
 
-.PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
+$(MAKECMDGOALS): build-one-by-one
+	@:
+
+build-one-by-one:
+	$(Q)set -e; \
+	for i in $(MAKECMDGOALS); do \
+		$(MAKE) -f $(srctree)/Makefile $$i; \
+	done
 
-ifeq ($(obj)include/config.mk,$(wildcard $(obj)include/config.mk))
+else
+ifeq ($(config-targets),1)
+# ===========================================================================
+# *config targets only - make sure prerequisites are updated, and descend
+# in scripts/kconfig to make the *config target
 
-# Include autoconf.mk before config.mk so that the config options are available
-# to all top level build files.  We need the dummy all: target to prevent the
-# dependency target in autoconf.mk.dep from being the default.
-all:
-sinclude $(obj)include/autoconf.mk.dep
-sinclude $(obj)include/autoconf.mk
+# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
+# KBUILD_DEFCONFIG may point out an alternative default configuration
+# used for 'make defconfig'
 
-SUBDIR_EXAMPLES-y := examples/standalone
-SUBDIR_EXAMPLES-$(CONFIG_API) += examples/api
-ifndef CONFIG_SANDBOX
-SUBDIRS += $(SUBDIR_EXAMPLES-y)
-endif
+%_config:: outputmakefile
+	@$(MKCONFIG) -A $(@:_config=)
+
+else
+# ===========================================================================
+# Build targets only - this includes vmlinux, arch specific targets, clean
+# targets and others. In general all targets except *config targets.
 
 # load ARCH, BOARD, and CPU configuration
-include $(obj)include/config.mk
-export	ARCH CPU BOARD VENDOR SOC
+-include include/config.mk
 
-# set default to nothing for native builds
-ifeq ($(HOSTARCH),$(ARCH))
-CROSS_COMPILE ?=
-endif
+ifeq ($(dot-config),1)
+# Read in config
+-include include/autoconf.mk
+-include include/autoconf.mk.dep
 
 # load other configuration
-include $(TOPDIR)/config.mk
+include $(srctree)/config.mk
 
-# Targets which don't build the source code
-NON_BUILD_TARGETS = backup clean clobber distclean mrproper tidy unconfig
+ifeq ($(wildcard include/config.mk),)
+$(error "System not configured - see README")
+endif
 
-# Only do the generic board check when actually building, not configuring
-ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
-ifeq ($(findstring _config,$(MAKECMDGOALS)),)
-$(CHECK_GENERIC_BOARD)
+ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
+ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
+$(error Your architecture does not support generic board. \
+Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
 endif
 endif
 
@@ -210,6 +528,60 @@ $(error could not find linker script)
 	endif
 endif
 
+else
+
+
+endif # $(dot-config)
+
+KBUILD_CFLAGS += -Os #-fomit-frame-pointer
+
+ifdef BUILD_TAG
+KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
+endif
+
+KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+
+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
+KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
+
+KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
+
+# turn jbsr into jsr for m68k
+ifeq ($(ARCH),m68k)
+ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
+KBUILD_AFLAGS += -Wa,-gstabs,-S
+endif
+endif
+
+ifneq ($(CONFIG_SYS_TEXT_BASE),)
+KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
+endif
+
+export CONFIG_SYS_TEXT_BASE
+
+# Use UBOOTINCLUDE when you must reference the include/ directory.
+# Needed to be compatible with the O= option
+UBOOTINCLUDE    :=
+ifneq ($(OBJTREE),$(SRCTREE))
+UBOOTINCLUDE	+= -I$(OBJTREE)/include
+endif
+UBOOTINCLUDE	+= -I$(srctree)/include \
+		-I$(srctree)/arch/$(ARCH)/include
+
+NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+CHECKFLAGS     += $(NOSTDINC_FLAGS)
+
+# FIX ME
+cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
+c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
+
+.PHONY : $(VERSION_FILE) $(TIMESTAMP_FILE)
+
 #########################################################################
 # U-Boot objects....order is important (i.e. start must be first)
 
@@ -217,79 +589,85 @@ head-y := $(CPUDIR)/start.o
 head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
 
-OBJS := $(addprefix $(obj),$(head-y))
-
-HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
+HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 
-LIBS-y += lib/
-LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
-LIBS-y += $(CPUDIR)/
+libs-y += lib/
+libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
+libs-y += $(CPUDIR)/
 ifdef SOC
-LIBS-y += $(CPUDIR)/$(SOC)/
-endif
-LIBS-$(CONFIG_OF_EMBED) += dts/
-LIBS-y += arch/$(ARCH)/lib/
-LIBS-y += fs/
-LIBS-y += net/
-LIBS-y += disk/
-LIBS-y += drivers/
-LIBS-y += drivers/dma/
-LIBS-y += drivers/gpio/
-LIBS-y += drivers/i2c/
-LIBS-y += drivers/input/
-LIBS-y += drivers/mmc/
-LIBS-y += drivers/mtd/
-LIBS-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
-LIBS-y += drivers/mtd/onenand/
-LIBS-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
-LIBS-y += drivers/mtd/spi/
-LIBS-y += drivers/net/
-LIBS-y += drivers/net/phy/
-LIBS-y += drivers/pci/
-LIBS-y += drivers/power/ \
+libs-y += $(CPUDIR)/$(SOC)/
+endif
+libs-$(CONFIG_OF_EMBED) += dts/
+libs-y += arch/$(ARCH)/lib/
+libs-y += fs/
+libs-y += net/
+libs-y += disk/
+libs-y += drivers/
+libs-y += drivers/dma/
+libs-y += drivers/gpio/
+libs-y += drivers/i2c/
+libs-y += drivers/input/
+libs-y += drivers/mmc/
+libs-y += drivers/mtd/
+libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
+libs-y += drivers/mtd/onenand/
+libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
+libs-y += drivers/mtd/spi/
+libs-y += drivers/net/
+libs-y += drivers/net/phy/
+libs-y += drivers/pci/
+libs-y += drivers/power/ \
 	drivers/power/fuel_gauge/ \
 	drivers/power/mfd/ \
 	drivers/power/pmic/ \
 	drivers/power/battery/
-LIBS-y += drivers/spi/
-LIBS-$(CONFIG_FMAN_ENET) += drivers/net/fm/
-LIBS-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
-LIBS-y += drivers/serial/
-LIBS-y += drivers/usb/eth/
-LIBS-y += drivers/usb/gadget/
-LIBS-y += drivers/usb/host/
-LIBS-y += drivers/usb/musb/
-LIBS-y += drivers/usb/musb-new/
-LIBS-y += drivers/usb/phy/
-LIBS-y += drivers/usb/ulpi/
-LIBS-y += common/
-LIBS-y += lib/libfdt/
-LIBS-$(CONFIG_API) += api/
-LIBS-$(CONFIG_HAS_POST) += post/
-LIBS-y += test/
+libs-y += drivers/spi/
+libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
+libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
+libs-y += drivers/serial/
+libs-y += drivers/usb/eth/
+libs-y += drivers/usb/gadget/
+libs-y += drivers/usb/host/
+libs-y += drivers/usb/musb/
+libs-y += drivers/usb/musb-new/
+libs-y += drivers/usb/phy/
+libs-y += drivers/usb/ulpi/
+libs-y += common/
+libs-y += lib/libfdt/
+libs-$(CONFIG_API) += api/
+libs-$(CONFIG_HAS_POST) += post/
+libs-y += test/
 
 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
-LIBS-y += arch/$(ARCH)/imx-common/
+libs-y += arch/$(ARCH)/imx-common/
 endif
 
-LIBS-$(CONFIG_ARM) += arch/arm/cpu/
-LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
+libs-$(CONFIG_ARM) += arch/arm/cpu/
+libs-$(CONFIG_PPC) += arch/powerpc/cpu/
+
+libs-y += board/$(BOARDDIR)/
+
+libs-y := $(sort $(libs-y))
 
-LIBS-y += board/$(BOARDDIR)/
+u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
+
+u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
+
+libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
+
+u-boot-init := $(head-y)
+u-boot-main := $(libs-y)
 
-LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
-LIBS := $(addprefix $(obj),$(sort $(LIBS-y)))
-.PHONY : $(LIBS)
 
 # Add GCC lib
 ifdef USE_PRIVATE_LIBGCC
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
+PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
 else
 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 endif
 else
-PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
+PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 endif
 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 export PLATFORM_LIBS
@@ -303,9 +681,6 @@ LDPPFLAGS += \
 	$(shell $(LD) --version | \
 	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 
-__OBJS := $(subst $(obj),,$(OBJS))
-__LIBS := $(subst $(obj),,$(LIBS))
-
 #########################################################################
 #########################################################################
 
@@ -330,68 +705,71 @@ ifneq ($(CONFIG_STATIC_RELA),)
 DO_STATIC_RELA = \
 	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
-	$(obj)tools/relocate-rela $(2) $(3) $$start $$end
+	tools/relocate-rela $(2) $(3) $$start $$end
 else
 DO_STATIC_RELA =
 endif
 
 # Always append ALL so that arch config.mk's can add custom ones
-ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
-
-ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin
-ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
-ALL-$(CONFIG_RAMBOOT_PBL) += $(obj)u-boot.pbl
-ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
-ALL-$(CONFIG_SPL_FRAMEWORK) += $(obj)u-boot.img
-ALL-$(CONFIG_TPL) += $(obj)tpl/u-boot-tpl.bin
-ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
+ALL-y += u-boot.srec u-boot.bin System.map
+
+ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
+ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
+ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
+ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
+ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
+ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
+ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.bin
 ifneq ($(CONFIG_SPL_TARGET),)
-ALL-$(CONFIG_SPL) += $(obj)$(CONFIG_SPL_TARGET:"%"=%)
+ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 endif
-ALL-$(CONFIG_REMAKE_ELF) += $(obj)u-boot.elf
+ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 
 # enable combined SPL/u-boot/dtb rules for tegra
 ifneq ($(CONFIG_TEGRA),)
 ifeq ($(CONFIG_SPL),y)
 ifeq ($(CONFIG_OF_SEPARATE),y)
-ALL-y += $(obj)u-boot-dtb-tegra.bin
+ALL-y += u-boot-dtb-tegra.bin
 else
-ALL-y += $(obj)u-boot-nodtb-tegra.bin
+ALL-y += u-boot-nodtb-tegra.bin
 endif
 endif
 endif
 
-build := -f $(TOPDIR)/scripts/Makefile.build -C
+LDFLAGS_u-boot += -T u-boot.lds $(LDFLAGS_FINAL)
+ifneq ($(CONFIG_SYS_TEXT_BASE),)
+LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
+endif
 
-all:		$(ALL-y) $(SUBDIR_EXAMPLES-y)
+all:		$(ALL-y)
 
-$(obj)u-boot.dtb:	checkdtc $(obj)u-boot
-		$(MAKE) $(build) dts binary
-		mv $(obj)dts/dt.dtb $@
+PHONY += dtbs
+dtbs dts/dt.dtb: checkdtc u-boot
+	$(Q)$(MAKE) $(build)=dts dtbs
 
-$(obj)u-boot-dtb.bin:	$(obj)u-boot.bin $(obj)u-boot.dtb
+u-boot-dtb.bin: u-boot.bin dts/dt.dtb
 		cat $^ >$@
 
-$(obj)u-boot.hex:	$(obj)u-boot
+u-boot.hex:	u-boot
 		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
 
-$(obj)u-boot.srec:	$(obj)u-boot
+u-boot.srec:	u-boot
 		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
 
-$(obj)u-boot.bin:	$(obj)u-boot
+u-boot.bin:	u-boot
 		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 		$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 		$(BOARD_SIZE_CHECK)
 
-$(obj)u-boot.ldr:	$(obj)u-boot
+u-boot.ldr:	u-boot
 		$(CREATE_LDR_ENV)
 		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 		$(BOARD_SIZE_CHECK)
 
-$(obj)u-boot.ldr.hex:	$(obj)u-boot.ldr
+u-boot.ldr.hex:	u-boot.ldr
 		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
 
-$(obj)u-boot.ldr.srec:	$(obj)u-boot.ldr
+u-boot.ldr.srec:	u-boot.ldr
 		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
 
 #
@@ -402,79 +780,78 @@ ifndef CONFIG_SYS_UBOOT_START
 CONFIG_SYS_UBOOT_START := 0
 endif
 
-$(obj)u-boot.img:	$(obj)u-boot.bin
-		$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
+u-boot.img:	u-boot.bin
+		tools/mkimage -A $(ARCH) -T firmware -C none \
 		-O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
 		-e $(CONFIG_SYS_UBOOT_START) \
 		-n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
 			sed -e 's/"[	 ]*$$/ for $(BOARD) board"/') \
 		-d $< $@
 
-$(obj)u-boot.imx: $(obj)u-boot.bin depend
-		$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $(OBJTREE)/u-boot.imx
+u-boot.imx: u-boot.bin
+		$(MAKE) $(build)=arch/arm/imx-common $(objtree)/u-boot.imx
 
-$(obj)u-boot.kwb:       $(obj)u-boot.bin
-		$(obj)tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
+u-boot.kwb:       u-boot.bin
+		tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
 		-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 
-$(obj)u-boot.pbl:	$(obj)u-boot.bin
-		$(obj)tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
+u-boot.pbl:	u-boot.bin
+		tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
 		-R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
 		-d $< $@
 
-$(obj)u-boot.sha1:	$(obj)u-boot.bin
-		$(obj)tools/ubsha1 $(obj)u-boot.bin
+u-boot.sha1:	u-boot.bin
+		tools/ubsha1 u-boot.bin
 
-$(obj)u-boot.dis:	$(obj)u-boot
+u-boot.dis:	u-boot
 		$(OBJDUMP) -d $< > $@
 
 # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
 # $(4) is pad-to
 SPL_PAD_APPEND = \
 		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
-		$(1) $(obj)$(3); \
-		cat $(obj)$(3) $(2) > $@; \
-		rm $(obj)$(3)
+		$(1) $(3); \
+		cat $(3) $(2) > $@; \
+		rm $(3)
 
 ifdef CONFIG_TPL
-SPL_PAYLOAD := $(obj)tpl/u-boot-with-tpl.bin
+SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
 else
-SPL_PAYLOAD := $(obj)u-boot.bin
+SPL_PAYLOAD := u-boot.bin
 endif
 
-$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(SPL_PAYLOAD)
+u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD)
 		$(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
 
-$(obj)tpl/u-boot-with-tpl.bin: $(obj)tpl/u-boot-tpl.bin $(obj)u-boot.bin
-		$(call SPL_PAD_APPEND,$<,$(obj)u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
+tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin
+		$(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
 
-$(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
-		$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common \
+u-boot-with-spl.imx: spl/u-boot-spl.bin u-boot.bin
+		$(MAKE) $(build)=arch/arm/imx-common \
 			$(OBJTREE)/u-boot-with-spl.imx
 
-$(obj)u-boot-with-nand-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
-		$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common \
+u-boot-with-nand-spl.imx: spl/u-boot-spl.bin u-boot.bin
+		$(MAKE) $(build)=arch/arm/imx-common \
 			$(OBJTREE)/u-boot-with-nand-spl.imx
 
-$(obj)u-boot.ubl:       $(obj)u-boot-with-spl.bin
-		$(obj)tools/mkimage -n $(UBL_CONFIG) -T ublimage \
-		-e $(CONFIG_SYS_TEXT_BASE) -d $< $(obj)u-boot.ubl
+u-boot.ubl:       u-boot-with-spl.bin
+		tools/mkimage -n $(UBL_CONFIG) -T ublimage \
+		-e $(CONFIG_SYS_TEXT_BASE) -d $< u-boot.ubl
 
-$(obj)u-boot.ais:       $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
-		$(obj)tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(CONFIG_AIS_CONFIG_FILE),"/dev/null") \
+u-boot.ais:       spl/u-boot-spl.bin u-boot.img
+		tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
 			-T aisimage \
 			-e $(CONFIG_SPL_TEXT_BASE) \
-			-d $(obj)spl/u-boot-spl.bin \
-			$(obj)spl/u-boot-spl.ais
+			-d spl/u-boot-spl.bin \
+			spl/u-boot-spl.ais
 		$(OBJCOPY) ${OBJCFLAGS} -I binary \
 			--pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
-			$(obj)spl/u-boot-spl.ais $(obj)spl/u-boot-spl-pad.ais
-		cat $(obj)spl/u-boot-spl-pad.ais $(obj)u-boot.img > \
-			$(obj)u-boot.ais
+			spl/u-boot-spl.ais spl/u-boot-spl-pad.ais
+		cat spl/u-boot-spl-pad.ais u-boot.img > u-boot.ais
 
 
-$(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
-		$(MAKE) $(build) $(SRCTREE)/$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
+u-boot.sb:       u-boot.bin spl/u-boot-spl.bin
+		$(MAKE) $(build)=$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
 
 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
 # Both images are created using mkimage (crc etc), so that the ROM
@@ -482,124 +859,188 @@ $(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
 # The resulting image containing both U-Boot images is called u-boot.spr
-$(obj)u-boot.spr:	$(obj)u-boot.img $(obj)spl/u-boot-spl.bin
-		$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
+u-boot.spr:	u-boot.img spl/u-boot-spl.bin
+		tools/mkimage -A $(ARCH) -T firmware -C none \
 		-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
-		-d $(obj)spl/u-boot-spl.bin $@
+		-d spl/u-boot-spl.bin $@
 		$(OBJCOPY) -I binary -O binary \
 			--pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
-		cat $(obj)u-boot.img >> $@
+		cat u-boot.img >> $@
 
 ifneq ($(CONFIG_TEGRA),)
-$(obj)u-boot-nodtb-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
-		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin
-		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
-		rm $(obj)spl/u-boot-spl-pad.bin
+u-boot-nodtb-tegra.bin: spl/u-boot-spl.bin u-boot.bin
+		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary spl/u-boot-spl spl/u-boot-spl-pad.bin
+		cat spl/u-boot-spl-pad.bin u-boot.bin > $@
+		rm spl/u-boot-spl-pad.bin
 
 ifeq ($(CONFIG_OF_SEPARATE),y)
-$(obj)u-boot-dtb-tegra.bin: $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb
-		cat $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb > $@
+u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb
+		cat $^ > $@
 endif
 endif
 
-$(obj)u-boot-img.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
-		cat $(obj)spl/u-boot-spl.bin $(obj)u-boot.img > $@
+u-boot-img.bin: spl/u-boot-spl.bin u-boot.img
+		cat spl/u-boot-spl.bin u-boot.img > $@
 
 # PPC4xx needs the SPL at the end of the image, since the reset vector
 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
 # and need to introduce a new build target with the full blown U-Boot
 # at the start padded up to the start of the SPL image. And then concat
 # the SPL image to the end.
-$(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
+u-boot-img-spl-at-end.bin: spl/u-boot-spl.bin u-boot.img
 		$(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
-			 --gap-fill=0xff $(obj)u-boot.img $@
-		cat $(obj)spl/u-boot-spl.bin >> $@
+			 --gap-fill=0xff u-boot.img $@
+		cat spl/u-boot-spl.bin >> $@
 
 # 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
-$(obj)u-boot.elf: $(obj)u-boot.bin
+u-boot.elf: u-boot.bin
 	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
-		$< $(obj)u-boot-elf.o
-	@$(LD) $(obj)u-boot-elf.o -o $@ \
+		$< u-boot-elf.o
+	@$(LD) u-boot-elf.o -o $@ \
 		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
 		-Ttext=$(CONFIG_SYS_TEXT_BASE)
 
 ifeq ($(CONFIG_SANDBOX),y)
 GEN_UBOOT = \
-		cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
-			-Wl,--start-group $(__LIBS) -Wl,--end-group \
+		$(CC) $(SYMS) -T u-boot.lds \
+			-Wl,--start-group $(u-boot-main) -Wl,--end-group \
 			$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
 else
 GEN_UBOOT = \
-		cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
-			$(__OBJS) \
-			--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
+		$(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
+			$(u-boot-init) \
+			--start-group $(u-boot-main) --end-group $(PLATFORM_LIBS) \
 			-Map u-boot.map -o u-boot
 endif
 
-$(obj)u-boot:	depend \
-		$(SUBDIR_TOOLS) $(OBJS) $(LIBS) $(obj)u-boot.lds
+u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds
 		$(GEN_UBOOT)
 ifeq ($(CONFIG_KALLSYMS),y)
-		smap=`$(call SYSTEM_MAP,$(obj)u-boot) | \
+		smap=`$(call SYSTEM_MAP,u-boot) | \
 			awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
-		$(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \
-			-c common/system_map.c -o $(obj)common/system_map.o
-		$(GEN_UBOOT) $(obj)common/system_map.o
+		$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
+			-c $(srctree)/common/system_map.c -o common/system_map.o
+		$(GEN_UBOOT) common/system_map.o
+endif
+
+# The actual objects are generated when descending, 
+# make sure no implicit rule kicks in
+$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
+
+# Handle descending into subdirectories listed in $(vmlinux-dirs)
+# Preset locale variables to speed up the build process. Limit locale
+# tweaks to this spot to avoid wrong language settings when running
+# make menuconfig etc.
+# Error messages still appears in the original language
+
+PHONY += $(u-boot-dirs)
+$(u-boot-dirs): depend prepare scripts
+	$(Q)$(MAKE) $(build)=$@
+
+tools: $(TIMESTAMP_FILE) $(VERSION_FILE)
+# The "tools" are needed early
+$(filter-out tools, $(u-boot-dirs)): tools
+# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
+# is "yes"), so compile examples after U-Boot is compiled.
+examples: $(filter-out examples, $(u-boot-dirs))
+
+# Things we need to do before we recursively start building the kernel
+# or the modules are listed in "prepare".
+# A multi level approach is used. prepareN is processed before prepareN-1.
+# archprepare is used in arch Makefiles and when processed asm symlink,
+# version.h and scripts_basic is processed / created.
+
+# Listed in dependency order
+PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
+
+# prepare3 is used to check if we are building in a separate output directory,
+# and if so do:
+# 1) Check that make has not been executed in the kernel src $(srctree)
+prepare3:
+ifneq ($(KBUILD_SRC),)
+	@$(kecho) '  Using $(srctree) as source for u-boot'
+	$(Q)if [ -f $(srctree)/include/config.mk ]; then \
+		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
+		echo >&2 "  in the '$(srctree)' directory.";\
+		/bin/false; \
+	fi;
 endif
 
-$(OBJS):
+# prepare2 creates a makefile if using a separate output directory
+prepare2: prepare3 outputmakefile
+
+prepare1: prepare2
 	@:
 
-$(LIBS):	depend $(SUBDIR_TOOLS)
-		$(MAKE) $(build) $(dir $(subst $(obj),,$@))
+archprepare: prepare1 scripts_basic
+
+prepare0: archprepare FORCE
+	@:
 
-$(SUBDIRS):	depend
-		$(MAKE) -C $@ all
+# All the preparing..
+prepare: prepare0
 
-$(SUBDIR_EXAMPLES-y): $(obj)u-boot
+#
+# Auto-generate the autoconf.mk file (which is included by all makefiles)
+#
+# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
+# the dep file is only include in this top level makefile to determine when
+# to regenerate the autoconf.mk file.
+
+quiet_cmd_autoconf_dep = GEN     $@
+      cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
+	-MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@
+
+include/autoconf.mk.dep: include/config.h include/common.h
+	$(call cmd,autoconf_dep)
+
+quiet_cmd_autoconf = GEN     $@
+      cmd_autoconf = \
+	$(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
+	sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
+	rm $@.tmp
 
-$(obj)u-boot.lds: $(LDSCRIPT) depend
-		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
+include/autoconf.mk: include/config.h
+	$(call cmd,autoconf)
 
-nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
-		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
+u-boot.lds: $(LDSCRIPT) depend
+		$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
 
-$(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
-		cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
+nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend prepare
+		$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
 
-$(obj)spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
-		$(MAKE) -C spl all
+u-boot-nand.bin:	nand_spl u-boot.bin
+		cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin
 
-$(obj)tpl/u-boot-tpl.bin:	$(SUBDIR_TOOLS) depend
-		$(MAKE) -C spl all CONFIG_TPL_BUILD=y
+spl/u-boot-spl.bin: tools depend prepare 
+		$(MAKE) obj=spl -f $(srctree)/spl/Makefile all
+
+tpl/u-boot-tpl.bin: tools depend prepare
+		$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
 
 # Explicitly make _depend in subdirs containing multiple targets to prevent
 # parallel sub-makes creating .depend files simultaneously.
 depend dep:	$(TIMESTAMP_FILE) $(VERSION_FILE) \
-		$(obj)include/spl-autoconf.mk \
-		$(obj)include/tpl-autoconf.mk \
-		$(obj)include/autoconf.mk \
-		$(obj)include/generated/generic-asm-offsets.h \
-		$(obj)include/generated/asm-offsets.h
+		include/generated/generic-asm-offsets.h \
+		include/generated/asm-offsets.h
 
-TAG_SUBDIRS = $(SUBDIRS)
-TAG_SUBDIRS += $(dir $(__LIBS))
-TAG_SUBDIRS += include
+TAG_SUBDIRS := $(u-boot-dirs) include
 
 FIND := find
 FINDFLAGS := -L
 
+PHONY += checkstack
+
 checkstack:
-		$(CROSS_COMPILE)objdump -d $(obj)u-boot \
-			`$(FIND) $(obj) -name u-boot-spl -print` | \
-			perl $(src)scripts/checkstack.pl $(ARCH)
+	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
+	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
 
 tags ctags:
-		ctags -w -o $(obj)ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
+		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
 						-name '*.[chS]' -print`
 
 etags:
@@ -614,7 +1055,7 @@ SYSTEM_MAP = \
 		$(NM) $1 | \
 		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
 		LC_ALL=C sort
-$(obj)System.map:	$(obj)u-boot
+System.map:	u-boot
 		@$(call SYSTEM_MAP,$<) > $@
 
 checkthumb:
@@ -640,82 +1081,42 @@ checkdtc:
 		false; \
 	fi
 
-#
-# Auto-generate the autoconf.mk file (which is included by all makefiles)
-#
-# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
-# the dep file is only include in this top level makefile to determine when
-# to regenerate the autoconf.mk file.
-$(obj)include/autoconf.mk.dep: $(obj)include/config.h include/common.h
-	@$(XECHO) Generating $@ ; \
-	: Generate the dependancies ; \
-	$(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
-		-MQ $(obj)include/autoconf.mk include/common.h > $@ || \
-		rm $@
-
-$(obj)include/autoconf.mk: $(obj)include/config.h
-	@$(XECHO) Generating $@ ; \
-	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h > $@.tmp && \
-		sed -n -f tools/scripts/define2mk.sed $@.tmp > $@; \
-	rm $@.tmp
-
-# Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
-$(obj)include/tpl-autoconf.mk: $(obj)include/config.h
-	@$(XECHO) Generating $@ ; \
-	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DCONFIG_TPL_BUILD  -DCONFIG_SPL_BUILD\
-			-DDO_DEPS_ONLY -dM include/common.h > $@.tmp && \
-		sed -n -f tools/scripts/define2mk.sed $@.tmp > $@; \
-	rm $@.tmp
+quiet_cmd_offsets = GEN     $@
+      cmd_offsets = $(srctree)/tools/scripts/make-asm-offsets $< $@
 
-$(obj)include/spl-autoconf.mk: $(obj)include/config.h
-	@$(XECHO) Generating $@ ; \
-	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DCONFIG_SPL_BUILD -DDO_DEPS_ONLY -dM include/common.h > $@.tmp && \
-		sed -n -f tools/scripts/define2mk.sed $@.tmp > $@; \
-	rm $@.tmp
+include/generated/generic-asm-offsets.h: lib/asm-offsets.s
+	$(call cmd,offsets)
 
-$(obj)include/generated/generic-asm-offsets.h: $(obj)lib/asm-offsets.s
-	@$(XECHO) Generating $@
-	tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@
+quiet_cmd_asm-offsets.s = CC      $@
+      cmd_asm-offsets.s = mkdir -p lib; \
+		$(CC) -DDO_DEPS_ONLY \
+		$(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+		-o $@ $< -c -S
 
-$(obj)lib/asm-offsets.s: $(obj)include/config.h $(src)lib/asm-offsets.c
-	@mkdir -p $(obj)lib
-	$(CC) -DDO_DEPS_ONLY \
-		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
-		-o $@ $(src)lib/asm-offsets.c -c -S
+lib/asm-offsets.s: $(srctree)/lib/asm-offsets.c include/config.h
+	$(call cmd,asm-offsets.s)
 
-$(obj)include/generated/asm-offsets.h: $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
-	@$(XECHO) Generating $@
-	tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@
+include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s
+	$(call cmd,offsets)
 
-$(obj)$(CPUDIR)/$(SOC)/asm-offsets.s: $(obj)include/config.h
-	@mkdir -p $(obj)$(CPUDIR)/$(SOC)
-	if [ -f $(src)$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
+quiet_cmd_soc_asm-offsets.s = CC      $@
+      cmd_soc_asm-offsets.s = mkdir -p $(CPUDIR)/$(SOC); \
+	if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
 		$(CC) -DDO_DEPS_ONLY \
-		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
-			-o $@ $(src)$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
+		$(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
+			-o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
 	else \
 		touch $@; \
 	fi
 
+$(CPUDIR)/$(SOC)/asm-offsets.s:	include/config.h
+	$(call cmd,soc_asm-offsets.s)
+
 #########################################################################
-else	# !config.mk
-all $(obj)u-boot.hex $(obj)u-boot.srec $(obj)u-boot.bin \
-$(obj)u-boot.img $(obj)u-boot.dis $(obj)u-boot \
-$(filter-out tools,$(SUBDIRS)) \
-depend dep tags ctags etags cscope $(obj)System.map:
-	@echo "System not configured - see README" >&2
-	@ exit 1
-
-tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) -C $@ all
-endif	# config.mk
 
 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
 # R_AARCH64_RELATIVE (64-bit).
-checkarmreloc: $(obj)u-boot
+checkarmreloc: u-boot
 	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
 		grep R_A | sort -u`"; \
 	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
@@ -744,15 +1145,11 @@ $(TIMESTAMP_FILE):
 		@LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
 		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
 
-easylogo env gdb:
-	$(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
-gdbtools: gdb
+env: depend scripts_basic
+	$(Q)$(MAKE) $(build)=tools/$@
 
-xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
-	$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
-
-tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) -C tools HOST_TOOLS_ALL=y
+tools-all: HOST_TOOLS_ALL=y
+tools-all: env tools ;
 
 .PHONY : CHANGELOG
 CHANGELOG:
@@ -763,106 +1160,132 @@ include/license.h: tools/bin2header COPYING
 	cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
 #########################################################################
 
-unconfig:
-	@rm -f $(obj)include/config.h $(obj)include/config.mk \
-		$(obj)board/*/config.tmp $(obj)board/*/*/config.tmp \
-		$(obj)include/autoconf.mk $(obj)include/autoconf.mk.dep \
-		$(obj)include/spl-autoconf.mk \
-		$(obj)include/tpl-autoconf.mk
+###
+# Cleaning is done on three levels.
+# make clean     Delete most generated files
+#                Leave enough to build external modules
+# make mrproper  Delete the current configuration, and all generated files
+# make distclean Remove editor backup files, patch leftover files and the like
+
+# Directories & files removed with 'make clean'
+CLEAN_DIRS  += $(MODVERDIR)
+CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \
+	       board/*/config.tmp board/*/*/config.tmp \
+	       include/autoconf.mk* include/spl-autoconf.mk \
+	       include/tpl-autoconf.mk
+
+# Directories & files removed with 'make clobber'
+CLOBBER_DIRS  += $(patsubst %,spl/%, $(filter-out Makefile, \
+		 $(shell ls -1 spl 2>/dev/null))) \
+		 tpl
+CLOBBER_FILES += u-boot* MLO MLO* SPL System.map nand_spl/u-boot*
+
+# Directories & files removed with 'make mrproper'
+MRPROPER_DIRS  += include/config include/generated
+MRPROPER_FILES += .config .config.old \
+		  tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
+		  include/config.h include/config.mk
+
+# clean - Delete most, but leave enough to build external modules
+#
+clean: rm-dirs  := $(CLEAN_DIRS)
+clean: rm-files := $(CLEAN_FILES)
+
+clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $f/Makefile),$f))
+
+clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
+
+PHONY += $(clean-dirs) clean archclean
+$(clean-dirs):
+	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
+
+# TODO: Do not use *.cfgtmp
+clean: $(clean-dirs)
+	$(call cmd,rmdirs)
+	$(call cmd,rmfiles)
+	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
+		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
+		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
+		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
+		-o -name '*.symtypes' -o -name 'modules.order' \
+		-o -name modules.builtin -o -name '.tmp_*.o.*' \
+		-o -name '*.gcno' \) -type f -print | xargs rm -f
+	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
+		-path './nand_spl/*' -type l -print | xargs rm -f
+
+# clobber
+#
+clobber: rm-dirs  := $(CLOBBER_DIRS)
+clobber: rm-files := $(CLOBBER_FILES)
 
-%_config::	unconfig
-	@$(MKCONFIG) -A $(@:_config=)
+PHONY += clobber
 
-sinclude $(obj).boards.depend
-$(obj).boards.depend:	boards.cfg
-	@awk '(NF && $$1 !~ /^#/) { print $$7 ": " $$7 "_config; $$(MAKE)" }' $< > $@
+clobber: clean
+	$(call cmd,rmdirs)
+	$(call cmd,rmfiles)
 
-#########################################################################
-#########################################################################
+# mrproper - Delete all generated files, including .config
+#
+mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
+mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
+mrproper-dirs      := $(addprefix _mrproper_,scripts)
 
-clean:
-	@rm -f $(obj)examples/standalone/atmel_df_pow2			  \
-	       $(obj)examples/standalone/hello_world			  \
-	       $(obj)examples/standalone/interrupt			  \
-	       $(obj)examples/standalone/mem_to_mem_idma2intr		  \
-	       $(obj)examples/standalone/sched				  \
-	       $(obj)examples/standalone/smc911{11,x}_eeprom		  \
-	       $(obj)examples/standalone/test_burst			  \
-	       $(obj)examples/standalone/timer
-	@rm -f $(obj)examples/api/demo{,.bin}
-	@rm -f $(obj)tools/bmp_logo	   $(obj)tools/easylogo/easylogo  \
-	       $(obj)tools/env/fw_printenv				  \
-	       $(obj)tools/envcrc					  \
-	       $(obj)tools/gdb/{gdbcont,gdbsend}			  \
-	       $(obj)tools/gen_eth_addr    $(obj)tools/img2srec		  \
-	       $(obj)tools/dump{env,}image		  \
-	       $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk	  \
-	       $(obj)tools/mk{$(BOARD),}spl				  \
-	       $(obj)tools/mxsboot					  \
-	       $(obj)tools/ncb		   $(obj)tools/ubsha1		  \
-	       $(obj)tools/kernel-doc/docproc				  \
-	       $(obj)tools/proftool
-	@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}	  \
-	       $(obj)board/matrix_vision/*/bootscript.img		  \
-	       $(obj)u-boot.lds						  \
-	       $(obj)arch/blackfin/cpu/init.{lds,elf}
-	@rm -f $(obj)include/bmp_logo.h
-	@rm -f $(obj)include/bmp_logo_data.h
-	@rm -f $(obj)lib/asm-offsets.s
-	@rm -f $(obj)include/generated/asm-offsets.h
-	@rm -f $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
-	@rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
-	@$(MAKE) -s -C doc/DocBook/ cleandocs
-	@find $(OBJTREE) -type f \
-		\( -name 'core' -o -name '*.bak' -o -name '*~' -o -name '*.su' \
-		-o -name '*.o'	-o -name '*.a' -o -name '*.exe' \
-		-o -name '*.cfgtmp' \) -print \
-		| xargs rm -f
-
-# Removes everything not needed for testing u-boot
-tidy:	clean
-	@find $(OBJTREE) -type f \( -name '*.depend*' \) -print | xargs rm -f
-
-clobber:	tidy
-	@find $(OBJTREE) -type f \( -name '*.srec' \
-		-o -name '*.bin' -o -name u-boot.img \) \
-		-print0 | xargs -0 rm -f
-	@rm -f $(OBJS) $(obj)*.bak $(obj)ctags $(obj)etags $(obj)TAGS \
-		$(obj)cscope.* $(obj)*.*~
-	@rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL-y)
-	@rm -f $(obj)u-boot.kwb
-	@rm -f $(obj)u-boot.pbl
-	@rm -f $(obj)u-boot.imx
-	@rm -f $(obj)u-boot-with-spl.imx
-	@rm -f $(obj)u-boot-with-nand-spl.imx
-	@rm -f $(obj)u-boot.ubl
-	@rm -f $(obj)u-boot.ais
-	@rm -f $(obj)u-boot.dtb
-	@rm -f $(obj)u-boot.sb
-	@rm -f $(obj)u-boot.spr
-	@rm -f $(obj)nand_spl/{u-boot.{lds,lst},System.map}
-	@rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map}
-	@rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map}
-	@rm -f $(obj)spl/u-boot-spl.lds
-	@rm -f $(obj)tpl/{u-boot-tpl,u-boot-tpl.bin,u-boot-tpl.map}
-	@rm -f $(obj)tpl/u-boot-spl.lds
-	@rm -f $(obj)MLO MLO.byteswap
-	@rm -f $(obj)SPL
-	@rm -f $(obj)tools/xway-swap-bytes
-	@rm -fr $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm
-	@rm -fr $(obj)include/generated
-	@[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f
-	@rm -f $(obj)dts/*.tmp
-	@rm -f $(obj)spl/u-boot-spl{,-pad}.ais
-
-mrproper \
-distclean:	clobber unconfig
-ifneq ($(OBJTREE),$(SRCTREE))
-	rm -rf $(obj)*
-endif
+PHONY += $(mrproper-dirs) mrproper archmrproper
+$(mrproper-dirs):
+	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
+
+mrproper: clobber $(mrproper-dirs)
+	$(call cmd,rmdirs)
+	$(call cmd,rmfiles)
+	@rm -f arch/*/include/asm/arch arch/*/include/asm/proc
+
+# distclean
+#
+PHONY += distclean
+
+distclean: mrproper
+	@find $(srctree) $(RCS_FIND_IGNORE) \
+		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
+		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
+		-o -name '.*.rej' \
+		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
+		-type f -print | xargs rm -f
 
 backup:
 	F=`basename $(TOPDIR)` ; cd .. ; \
 	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
 
-#########################################################################
+
+# Documentation targets
+# ---------------------------------------------------------------------------
+%docs: scripts_basic FORCE
+	$(Q)$(MAKE) $(build)=scripts build_docproc
+	$(Q)$(MAKE) $(build)=doc/DocBook $@
+
+# Dummies...
+PHONY += prepare scripts
+prepare: ;
+scripts: ;
+
+endif #ifeq ($(config-targets),1)
+endif #ifeq ($(mixed-targets),1)
+
+quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
+      cmd_rmdirs = rm -rf $(rm-dirs)
+
+quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
+      cmd_rmfiles = rm -f $(rm-files)
+
+# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
+# Usage:
+# $(Q)$(MAKE) $(clean)=dir
+clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
+
+endif	# skip-makefile
+
+PHONY += FORCE
+FORCE:
+
+# 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)
diff --git a/README b/README
index 4376f28..d4eb099 100644
--- a/README
+++ b/README
@@ -922,6 +922,8 @@ The following options need to be configured:
 		CONFIG_CMD_EXPORTENV	* export the environment
 		CONFIG_CMD_EXT2		* ext2 command support
 		CONFIG_CMD_EXT4		* ext4 command support
+		CONFIG_CMD_FS_GENERIC	* filesystem commands (e.g. load, ls)
+					  that work for multiple fs types
 		CONFIG_CMD_SAVEENV	  saveenv
 		CONFIG_CMD_FDC		* Floppy Disk Support
 		CONFIG_CMD_FAT		* FAT command support
@@ -2847,7 +2849,7 @@ CBFS (Coreboot Filesystem) support
 		CONFIG_RSA
 
 		This enables the RSA algorithm used for FIT image verification
-		in U-Boot. See doc/uImage/signature for more information.
+		in U-Boot. See doc/uImage.FIT/signature.txt for more information.
 
 		The signing part is build into mkimage regardless of this
 		option.
diff --git a/arch/arm/cpu/arm1136/config.mk b/arch/arm/cpu/arm1136/config.mk
index f74228c..ab1fc4a 100644
--- a/arch/arm/cpu/arm1136/config.mk
+++ b/arch/arm/cpu/arm1136/config.mk
@@ -14,6 +14,6 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/SPL
 endif
 else
-ALL-y	+= $(obj)u-boot.imx
+ALL-y	+= u-boot.imx
 endif
 endif
diff --git a/arch/arm/cpu/arm926ejs/config.mk b/arch/arm/cpu/arm926ejs/config.mk
index 4d9895f..f27ca15 100644
--- a/arch/arm/cpu/arm926ejs/config.mk
+++ b/arch/arm/cpu/arm926ejs/config.mk
@@ -13,6 +13,6 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/SPL
 endif
 else
-ALL-y	+= $(obj)u-boot.imx
+ALL-y	+= u-boot.imx
 endif
 endif
diff --git a/arch/arm/cpu/arm926ejs/davinci/config.mk b/arch/arm/cpu/arm926ejs/davinci/config.mk
index d5c978b..69e9d5a 100644
--- a/arch/arm/cpu/arm926ejs/davinci/config.mk
+++ b/arch/arm/cpu/arm926ejs/davinci/config.mk
@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 ifndef CONFIG_SPL_BUILD
-ALL-$(CONFIG_SPL_FRAMEWORK)	+= $(obj)u-boot.ais
+ALL-$(CONFIG_SPL_FRAMEWORK)	+= u-boot.ais
 endif
diff --git a/arch/arm/cpu/arm926ejs/omap/Makefile b/arch/arm/cpu/arm926ejs/omap/Makefile
index bd0a2fb..add9232 100644
--- a/arch/arm/cpu/arm926ejs/omap/Makefile
+++ b/arch/arm/cpu/arm926ejs/omap/Makefile
@@ -5,5 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y	= timer.o cpuinfo.o
+obj-y	= timer.o
+obj-$(CONFIG_DISPLAY_CPUINFO) += cpuinfo.o
 obj-y	+= reset.o
diff --git a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c
index 02332ee..587d99a 100644
--- a/arch/arm/cpu/arm926ejs/omap/cpuinfo.c
+++ b/arch/arm/cpu/arm926ejs/omap/cpuinfo.c
@@ -13,7 +13,7 @@
 #include <command.h>
 #include <linux/compiler.h>
 
-#if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP)
+#if defined(CONFIG_OMAP)
 
 #define omap_readw(x)		*(volatile unsigned short *)(x)
 #define omap_readl(x)		*(volatile unsigned long *)(x)
@@ -239,4 +239,4 @@ int print_cpuinfo (void)
 	return 0;
 }
 
-#endif /* #if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP) */
+#endif /* #if defined(CONFIG_OMAP) */
diff --git a/arch/arm/cpu/armv7/am33xx/config.mk b/arch/arm/cpu/armv7/am33xx/config.mk
index 8e3668f..1c06fb4 100644
--- a/arch/arm/cpu/armv7/am33xx/config.mk
+++ b/arch/arm/cpu/armv7/am33xx/config.mk
@@ -7,5 +7,5 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 ALL-$(CONFIG_SPL_SPI_SUPPORT) += $(OBJTREE)/MLO.byteswap
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif
diff --git a/arch/arm/cpu/armv7/config.mk b/arch/arm/cpu/armv7/config.mk
index 38b7c40..d01f3d9 100644
--- a/arch/arm/cpu/armv7/config.mk
+++ b/arch/arm/cpu/armv7/config.mk
@@ -20,6 +20,6 @@ ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/SPL
 endif
 else
-ALL-y	+= $(obj)u-boot.imx
+ALL-y	+= u-boot.imx
 endif
 endif
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
index bf29510..ade744e 100644
--- a/arch/arm/cpu/armv7/omap-common/hwinit-common.c
+++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
@@ -248,6 +248,7 @@ u32 get_device_type(void)
 				      (DEVICE_TYPE_MASK)) >> DEVICE_TYPE_SHIFT;
 }
 
+#if defined(CONFIG_DISPLAY_CPUINFO)
 /*
  * Print CPU information
  */
@@ -258,6 +259,8 @@ int print_cpuinfo(void)
 
 	return 0;
 }
+#endif
+
 #ifndef CONFIG_SYS_DCACHE_OFF
 void enable_caches(void)
 {
diff --git a/arch/arm/cpu/armv7/omap-common/sata.c b/arch/arm/cpu/armv7/omap-common/sata.c
index f5468c4..cad4fee 100644
--- a/arch/arm/cpu/armv7/omap-common/sata.c
+++ b/arch/arm/cpu/armv7/omap-common/sata.c
@@ -12,6 +12,7 @@
 #include <scsi.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/sata.h>
+#include <sata.h>
 #include <asm/io.h>
 #include "pipe3-phy.h"
 
@@ -31,7 +32,7 @@ struct omap_pipe3 sata_phy = {
 	.dpll_map = dpll_map_sata,
 };
 
-int omap_sata_init(void)
+int init_sata(int dev)
 {
 	int ret;
 	u32 val;
diff --git a/arch/arm/cpu/armv7/omap3/config.mk b/arch/arm/cpu/armv7/omap3/config.mk
index 1d6a57c..2a3d1c5 100644
--- a/arch/arm/cpu/armv7/omap3/config.mk
+++ b/arch/arm/cpu/armv7/omap3/config.mk
@@ -11,5 +11,5 @@
 ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif
diff --git a/arch/arm/cpu/armv7/omap4/config.mk b/arch/arm/cpu/armv7/omap4/config.mk
index 1d6a57c..2a3d1c5 100644
--- a/arch/arm/cpu/armv7/omap4/config.mk
+++ b/arch/arm/cpu/armv7/omap4/config.mk
@@ -11,5 +11,5 @@
 ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif
diff --git a/arch/arm/cpu/armv7/omap5/config.mk b/arch/arm/cpu/armv7/omap5/config.mk
index 2673af9..261b272 100644
--- a/arch/arm/cpu/armv7/omap5/config.mk
+++ b/arch/arm/cpu/armv7/omap5/config.mk
@@ -9,5 +9,5 @@
 ifdef CONFIG_SPL_BUILD
 ALL-y	+= $(OBJTREE)/MLO
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif
diff --git a/arch/arm/cpu/armv7/socfpga/config.mk b/arch/arm/cpu/armv7/socfpga/config.mk
index d33ab7d..3d18491 100644
--- a/arch/arm/cpu/armv7/socfpga/config.mk
+++ b/arch/arm/cpu/armv7/socfpga/config.mk
@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 ifndef CONFIG_SPL_BUILD
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif
diff --git a/arch/arm/cpu/armv7/tegra114/Makefile b/arch/arm/cpu/armv7/tegra114/Makefile
index 886b509..77e2319 100644
--- a/arch/arm/cpu/armv7/tegra114/Makefile
+++ b/arch/arm/cpu/armv7/tegra114/Makefile
@@ -17,4 +17,5 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-obj- :=
+# necessary to create built-in.o
+obj- := __dummy__.o
diff --git a/arch/arm/cpu/armv7/tegra124/Makefile b/arch/arm/cpu/armv7/tegra124/Makefile
index 7f127b1..9478d44 100644
--- a/arch/arm/cpu/armv7/tegra124/Makefile
+++ b/arch/arm/cpu/armv7/tegra124/Makefile
@@ -4,3 +4,6 @@
 #
 # SPDX-License-Identifier:     GPL-2.0+
 #
+
+# necessary to create built-in.o
+obj- := __dummy__.o
diff --git a/arch/arm/cpu/armv7/tegra30/Makefile b/arch/arm/cpu/armv7/tegra30/Makefile
index 518d6d1..413eba1 100644
--- a/arch/arm/cpu/armv7/tegra30/Makefile
+++ b/arch/arm/cpu/armv7/tegra30/Makefile
@@ -17,4 +17,5 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-obj- :=
+# necessary to create built-in.o
+obj- := __dummy__.o
diff --git a/arch/arm/cpu/tegra-common/Makefile b/arch/arm/cpu/tegra-common/Makefile
index edfc1a8..34d5734 100644
--- a/arch/arm/cpu/tegra-common/Makefile
+++ b/arch/arm/cpu/tegra-common/Makefile
@@ -8,4 +8,5 @@
 #
 
 obj-y += lowlevel_init.o
-obj-y	+= ap.o board.o sys_info.o clock.o cache.o
+obj-y	+= ap.o board.o clock.o cache.o
+obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o
diff --git a/arch/arm/cpu/tegra-common/sys_info.c b/arch/arm/cpu/tegra-common/sys_info.c
index dc8a2e4..de20325 100644
--- a/arch/arm/cpu/tegra-common/sys_info.c
+++ b/arch/arm/cpu/tegra-common/sys_info.c
@@ -8,7 +8,6 @@
 #include <common.h>
 #include <linux/ctype.h>
 
-#ifdef CONFIG_DISPLAY_CPUINFO
 void upstring(char *s)
 {
 	while (*s) {
@@ -30,4 +29,3 @@ int print_cpuinfo(void)
 	/* TBD: Add printf of major/minor rev info, stepping, etc. */
 	return 0;
 }
-#endif	/* CONFIG_DISPLAY_CPUINFO */
diff --git a/arch/arm/dts/.gitignore b/arch/arm/dts/.gitignore
new file mode 100644
index 0000000..b60ed20
--- /dev/null
+++ b/arch/arm/dts/.gitignore
@@ -0,0 +1 @@
+*.dtb
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
new file mode 100644
index 0000000..2658911
--- /dev/null
+++ b/arch/arm/dts/Makefile
@@ -0,0 +1,37 @@
+dtb-$(CONFIG_EXYNOS5) += exynos5250-arndale.dtb \
+	exynos5250-snow.dtb \
+	exynos5250-smdk5250.dtb \
+	exynos5420-smdk5420.dtb
+
+dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \
+	tegra20-medcom-wide.dtb \
+	tegra20-paz00.dtb \
+	tegra20-plutux.dtb \
+	tegra20-seaboard.dtb \
+	tegra20-tec.dtb \
+	tegra20-trimslice.dtb \
+	tegra20-ventana.dtb \
+	tegra20-whistler.dtb \
+	tegra20-colibri_t20_iris.dtb \
+	tegra30-beaver.dtb \
+	tegra30-cardhu.dtb \
+	tegra30-tec-ng.dtb \
+	tegra114-dalmore.dtb
+
+dtb-$(CONFIG_ZYNQ) += zynq-zc702.dtb \
+	zynq-zc706.dtb \
+	zynq-zed.dtb \
+	zynq-microzed.dtb \
+	zynq-zc770-xm010.dtb \
+	zynq-zc770-xm012.dtb \
+	zynq-zc770-xm013.dtb
+
+targets += $(dtb-y)
+
+DTC_FLAGS += -R 4 -p 0x1000
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+	@:
+
+clean-files := *.dtb
diff --git a/board/samsung/dts/exynos5250-arndale.dts b/arch/arm/dts/exynos5250-arndale.dts
index 202f2ea..202f2ea 100644
--- a/board/samsung/dts/exynos5250-arndale.dts
+++ b/arch/arm/dts/exynos5250-arndale.dts
diff --git a/board/samsung/dts/exynos5250-smdk5250.dts b/arch/arm/dts/exynos5250-smdk5250.dts
index 9020382..9020382 100644
--- a/board/samsung/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/dts/exynos5250-smdk5250.dts
diff --git a/board/samsung/dts/exynos5250-snow.dts b/arch/arm/dts/exynos5250-snow.dts
index 9b48a0c..9b48a0c 100644
--- a/board/samsung/dts/exynos5250-snow.dts
+++ b/arch/arm/dts/exynos5250-snow.dts
diff --git a/board/samsung/dts/exynos5420-smdk5420.dts b/arch/arm/dts/exynos5420-smdk5420.dts
index d739763..d739763 100644
--- a/board/samsung/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/dts/exynos5420-smdk5420.dts
diff --git a/board/nvidia/dts/tegra114-dalmore.dts b/arch/arm/dts/tegra114-dalmore.dts
index 435c01e..435c01e 100644
--- a/board/nvidia/dts/tegra114-dalmore.dts
+++ b/arch/arm/dts/tegra114-dalmore.dts
diff --git a/board/toradex/dts/tegra20-colibri_t20_iris.dts b/arch/arm/dts/tegra20-colibri_t20_iris.dts
index c0e54af..c0e54af 100644
--- a/board/toradex/dts/tegra20-colibri_t20_iris.dts
+++ b/arch/arm/dts/tegra20-colibri_t20_iris.dts
diff --git a/board/nvidia/dts/tegra20-harmony.dts b/arch/arm/dts/tegra20-harmony.dts
index b115f87..b115f87 100644
--- a/board/nvidia/dts/tegra20-harmony.dts
+++ b/arch/arm/dts/tegra20-harmony.dts
diff --git a/board/avionic-design/dts/tegra20-medcom-wide.dts b/arch/arm/dts/tegra20-medcom-wide.dts
index a9a07f9..a9a07f9 100644
--- a/board/avionic-design/dts/tegra20-medcom-wide.dts
+++ b/arch/arm/dts/tegra20-medcom-wide.dts
diff --git a/board/compal/dts/tegra20-paz00.dts b/arch/arm/dts/tegra20-paz00.dts
index 780203c..780203c 100644
--- a/board/compal/dts/tegra20-paz00.dts
+++ b/arch/arm/dts/tegra20-paz00.dts
diff --git a/board/avionic-design/dts/tegra20-plutux.dts b/arch/arm/dts/tegra20-plutux.dts
index 20016f2..20016f2 100644
--- a/board/avionic-design/dts/tegra20-plutux.dts
+++ b/arch/arm/dts/tegra20-plutux.dts
diff --git a/board/nvidia/dts/tegra20-seaboard.dts b/arch/arm/dts/tegra20-seaboard.dts
index c0e2e1e..c0e2e1e 100644
--- a/board/nvidia/dts/tegra20-seaboard.dts
+++ b/arch/arm/dts/tegra20-seaboard.dts
diff --git a/board/avionic-design/dts/tegra20-tamonten.dtsi b/arch/arm/dts/tegra20-tamonten.dtsi
index f379622..f379622 100644
--- a/board/avionic-design/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/dts/tegra20-tamonten.dtsi
diff --git a/board/avionic-design/dts/tegra20-tec.dts b/arch/arm/dts/tegra20-tec.dts
index 4c1b08d..4c1b08d 100644
--- a/board/avionic-design/dts/tegra20-tec.dts
+++ b/arch/arm/dts/tegra20-tec.dts
diff --git a/board/compulab/dts/tegra20-trimslice.dts b/arch/arm/dts/tegra20-trimslice.dts
index ee31476..ee31476 100644
--- a/board/compulab/dts/tegra20-trimslice.dts
+++ b/arch/arm/dts/tegra20-trimslice.dts
diff --git a/board/nvidia/dts/tegra20-ventana.dts b/arch/arm/dts/tegra20-ventana.dts
index 1a526ba..1a526ba 100644
--- a/board/nvidia/dts/tegra20-ventana.dts
+++ b/arch/arm/dts/tegra20-ventana.dts
diff --git a/board/nvidia/dts/tegra20-whistler.dts b/arch/arm/dts/tegra20-whistler.dts
index eb92264..eb92264 100644
--- a/board/nvidia/dts/tegra20-whistler.dts
+++ b/arch/arm/dts/tegra20-whistler.dts
diff --git a/board/nvidia/dts/tegra30-beaver.dts b/arch/arm/dts/tegra30-beaver.dts
index a7cc93e..a7cc93e 100644
--- a/board/nvidia/dts/tegra30-beaver.dts
+++ b/arch/arm/dts/tegra30-beaver.dts
diff --git a/board/nvidia/dts/tegra30-cardhu.dts b/arch/arm/dts/tegra30-cardhu.dts
index ea2cf76..ea2cf76 100644
--- a/board/nvidia/dts/tegra30-cardhu.dts
+++ b/arch/arm/dts/tegra30-cardhu.dts
diff --git a/board/avionic-design/dts/tegra30-tamonten.dtsi b/arch/arm/dts/tegra30-tamonten.dtsi
index 50d5762..50d5762 100644
--- a/board/avionic-design/dts/tegra30-tamonten.dtsi
+++ b/arch/arm/dts/tegra30-tamonten.dtsi
diff --git a/board/avionic-design/dts/tegra30-tec-ng.dts b/arch/arm/dts/tegra30-tec-ng.dts
index 8a69e81..8a69e81 100644
--- a/board/avionic-design/dts/tegra30-tec-ng.dts
+++ b/arch/arm/dts/tegra30-tec-ng.dts
diff --git a/board/xilinx/dts/zynq-microzed.dts b/arch/arm/dts/zynq-microzed.dts
index 6da71c1..6da71c1 100644
--- a/board/xilinx/dts/zynq-microzed.dts
+++ b/arch/arm/dts/zynq-microzed.dts
diff --git a/board/xilinx/dts/zynq-zc702.dts b/arch/arm/dts/zynq-zc702.dts
index 667dc28..667dc28 100644
--- a/board/xilinx/dts/zynq-zc702.dts
+++ b/arch/arm/dts/zynq-zc702.dts
diff --git a/board/xilinx/dts/zynq-zc706.dts b/arch/arm/dts/zynq-zc706.dts
index 526fc88..526fc88 100644
--- a/board/xilinx/dts/zynq-zc706.dts
+++ b/arch/arm/dts/zynq-zc706.dts
diff --git a/board/xilinx/dts/zynq-zc770-xm010.dts b/arch/arm/dts/zynq-zc770-xm010.dts
index 8b542a1..8b542a1 100644
--- a/board/xilinx/dts/zynq-zc770-xm010.dts
+++ b/arch/arm/dts/zynq-zc770-xm010.dts
diff --git a/board/xilinx/dts/zynq-zc770-xm012.dts b/arch/arm/dts/zynq-zc770-xm012.dts
index 0379a07..0379a07 100644
--- a/board/xilinx/dts/zynq-zc770-xm012.dts
+++ b/arch/arm/dts/zynq-zc770-xm012.dts
diff --git a/board/xilinx/dts/zynq-zc770-xm013.dts b/arch/arm/dts/zynq-zc770-xm013.dts
index a4f9e05..a4f9e05 100644
--- a/board/xilinx/dts/zynq-zc770-xm013.dts
+++ b/arch/arm/dts/zynq-zc770-xm013.dts
diff --git a/board/xilinx/dts/zynq-zed.dts b/arch/arm/dts/zynq-zed.dts
index 91a5deb..91a5deb 100644
--- a/board/xilinx/dts/zynq-zed.dts
+++ b/arch/arm/dts/zynq-zed.dts
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile
index ee5c872..9dda59d 100644
--- a/arch/arm/imx-common/Makefile
+++ b/arch/arm/imx-common/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
 
 $(OBJTREE)/$(patsubst "%",%,$(CONFIG_IMX_CONFIG)).cfgtmp: $(OBJTREE)/%.cfgtmp : $(SRCTREE)/%
 	mkdir -p $(dir $@)
-	$(CC) -E -x c $< $(CPPFLAGS) -o $@
+	$(CPP) $(cpp_flags) -x c -o $@ $<
 
 $(OBJTREE)/u-boot.imx: $(OBJTREE)/u-boot.bin $(OBJTREE)/$(patsubst "%",%,$(CONFIG_IMX_CONFIG)).cfgtmp
 	$(OBJTREE)/tools/mkimage -n $(filter-out %.bin,$^) -T imximage \
diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h
index 87b7d36..2e5c356 100644
--- a/arch/arm/include/asm/arch-am33xx/sys_proto.h
+++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h
@@ -17,10 +17,6 @@
 u32 get_cpu_rev(void);
 u32 get_sysboot_value(void);
 
-#ifdef CONFIG_DISPLAY_CPUINFO
-int print_cpuinfo(void);
-#endif
-
 extern struct ctrl_stat *cstat;
 u32 get_device_type(void);
 void save_omap_boot_params(void);
diff --git a/arch/arm/include/asm/arch-omap5/sata.h b/arch/arm/include/asm/arch-omap5/sata.h
index 2ca8947..b69165b 100644
--- a/arch/arm/include/asm/arch-omap5/sata.h
+++ b/arch/arm/include/asm/arch-omap5/sata.h
@@ -36,13 +36,4 @@
 #define TI_SATA_IDLE_SMART_WAKE			(0x3 << 2)
 #define TI_SATA_IDLE_SMART			(0x2 << 2)
 
-#ifdef CONFIG_SCSI_AHCI_PLAT
-int omap_sata_init(void);
-#else
-static inline int omap_sata_init(void)
-{
-	return 0;
-}
-#endif /* CONFIG_SCSI_AHCI_PLAT */
-
 #endif /* _TI_SATA_H */
diff --git a/arch/arm/include/asm/arch-omap5/spl.h b/arch/arm/include/asm/arch-omap5/spl.h
index 2d5a62e..4a279cf 100644
--- a/arch/arm/include/asm/arch-omap5/spl.h
+++ b/arch/arm/include/asm/arch-omap5/spl.h
@@ -15,6 +15,7 @@
 #define BOOT_DEVICE_MMC1        5
 #define BOOT_DEVICE_MMC2        6
 #define BOOT_DEVICE_MMC2_2	7
+#define BOOT_DEVICE_SATA	9
 #define BOOT_DEVICE_SPI		10
 #define BOOT_DEVICE_UART	0x43
 
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c
index b770e25..c320a35 100644
--- a/arch/arm/lib/board.c
+++ b/arch/arm/lib/board.c
@@ -197,8 +197,6 @@ static int arm_pci_init(void)
  */
 typedef int (init_fnc_t) (void);
 
-int print_cpuinfo(void);
-
 void __dram_init_banksize(void)
 {
 	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
@@ -250,9 +248,7 @@ init_fnc_t *init_sequence[] = {
 	serial_init,		/* serial communications setup */
 	console_init_f,		/* stage 1 init of console */
 	display_banner,		/* say that we are here */
-#if defined(CONFIG_DISPLAY_CPUINFO)
 	print_cpuinfo,		/* display cpu info (and speed) */
-#endif
 #if defined(CONFIG_DISPLAY_BOARDINFO)
 	checkboard,		/* display board info */
 #endif
@@ -280,7 +276,7 @@ void board_init_f(ulong bootflag)
 	gd->mon_len = _bss_end_ofs;
 #ifdef CONFIG_OF_EMBED
 	/* Get a pointer to the FDT */
-	gd->fdt_blob = _binary_dt_dtb_start;
+	gd->fdt_blob = __dtb_db_begin;
 #elif defined CONFIG_OF_SEPARATE
 	/* FDT is at end of image */
 	gd->fdt_blob = (void *)(_end_ofs + _TEXT_BASE);
diff --git a/arch/blackfin/config.mk b/arch/blackfin/config.mk
index 73fa798..c752025 100644
--- a/arch/blackfin/config.mk
+++ b/arch/blackfin/config.mk
@@ -12,7 +12,7 @@ CONFIG_STANDALONE_LOAD_ADDR ?= 0x1000 -m elf32bfin
 ifeq ($(CONFIG_BFIN_CPU),)
 CONFIG_BFIN_CPU := \
 	$(shell awk '$$2 == "CONFIG_BFIN_CPU" { print $$3 }' \
-		$(src)include/configs/$(BOARD).h)
+		$(srctree)/include/configs/$(BOARD).h)
 else
 CONFIG_BFIN_CPU := $(strip $(CONFIG_BFIN_CPU:"%"=%))
 endif
@@ -28,10 +28,10 @@ PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
 PLATFORM_RELFLAGS += -mcpu=$(CONFIG_BFIN_CPU)
 
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
-ALL-y += $(obj)u-boot.ldr
+ALL-y += u-boot.ldr
 endif
 ifeq ($(CONFIG_ENV_IS_EMBEDDED_IN_LDR),y)
-CREATE_LDR_ENV = $(obj)tools/envcrc --binary > $(obj)env-ldr.o
+CREATE_LDR_ENV = tools/envcrc --binary > env-ldr.o
 HOSTCFLAGS_NOPED_ADSP := \
 	$(shell $(CPP) -dD - -mcpu=$(CONFIG_BFIN_CPU) </dev/null \
 		| awk '$$2 ~ /ADSP/ { print "-D" $$2 }')
@@ -47,10 +47,10 @@ LDR_FLAGS-$(CONFIG_BFIN_BOOTROM_USES_EVT1) += -J
 
 LDR_FLAGS += --bmode $(subst BFIN_BOOT_,,$(CONFIG_BFIN_BOOT_MODE))
 LDR_FLAGS += --use-vmas
-LDR_FLAGS += --initcode $(obj)$(CPUDIR)/initcode.o
+LDR_FLAGS += --initcode $(CPUDIR)/initcode.o
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_UART)
 LDR_FLAGS-$(CONFIG_ENV_IS_EMBEDDED_IN_LDR) += \
-	--punchit $$(($(CONFIG_ENV_OFFSET))):$$(($(CONFIG_ENV_SIZE))):$(obj)env-ldr.o
+	--punchit $$(($(CONFIG_ENV_OFFSET))):$$(($(CONFIG_ENV_SIZE))):env-ldr.o
 endif
 ifneq (,$(findstring s,$(MAKEFLAGS)))
 LDR_FLAGS += --quiet
diff --git a/arch/blackfin/cpu/Makefile b/arch/blackfin/cpu/Makefile
index a61594a..426292f 100644
--- a/arch/blackfin/cpu/Makefile
+++ b/arch/blackfin/cpu/Makefile
@@ -22,12 +22,13 @@ obj-y  += reset.o
 obj-y  += traps.o
 
 extra-y += check_initcode
+clean-files := init.lds
 
 # make sure our initcode (which goes into LDR) does not
 # have relocs or external references
-$(obj)initcode.o: CFLAGS += -fno-function-sections -fno-data-sections
+CFLAGS_REMOVE_initcode.o := -ffunction-sections -fdata-sections
 READINIT = env LC_ALL=C $(CROSS_COMPILE)readelf -s $<
-$(obj)check_initcode: $(obj)initcode.o
+$(obj)/check_initcode: $(obj)/initcode.o
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
 	@if $(READINIT) | grep '\<GLOBAL\>.*\<UND\>' ; then \
 		echo "$< contains external references!" 1>&2 ; \
@@ -35,7 +36,6 @@ ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
 	fi
 endif
 
-$(obj)init.lds: init.lds.S
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P $^ -o $@
-$(obj)init.elf: $(obj)init.lds $(obj)init.o $(obj)initcode.o
+CPPFLAGS_init.lds := -ansi
+$(obj)/init.elf: $(obj)/init.lds $(obj)/init.o $(obj)/initcode.o
 	$(LD) $(LDFLAGS) -T $^ -o $@
diff --git a/arch/blackfin/lib/Makefile b/arch/blackfin/lib/Makefile
index a5c552f..4ba7bf6 100644
--- a/arch/blackfin/lib/Makefile
+++ b/arch/blackfin/lib/Makefile
@@ -9,7 +9,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -DBFIN_BOARD_NAME='"$(BOARD)"'
+# Unnecessary.
+# Use CONFIG_SYS_BOARD instead of BFIN_BOARD_NAME
+# and delete this.
+ccflags-y += -DBFIN_BOARD_NAME='"$(BOARD)"'
 
 obj-y	+= ins.o
 obj-y	+= memcmp.o
diff --git a/arch/m68k/cpu/mcf5227x/Makefile b/arch/m68k/cpu/mcf5227x/Makefile
index a47fd56..e0c5db6 100644
--- a/arch/m68k/cpu/mcf5227x/Makefile
+++ b/arch/m68k/cpu/mcf5227x/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o
diff --git a/arch/m68k/cpu/mcf523x/Makefile b/arch/m68k/cpu/mcf523x/Makefile
index a47fd56..e0c5db6 100644
--- a/arch/m68k/cpu/mcf523x/Makefile
+++ b/arch/m68k/cpu/mcf523x/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o
diff --git a/arch/m68k/cpu/mcf52x2/Makefile b/arch/m68k/cpu/mcf52x2/Makefile
index d9bf900..b92fd86 100644
--- a/arch/m68k/cpu/mcf52x2/Makefile
+++ b/arch/m68k/cpu/mcf52x2/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= interrupts.o cpu.o speed.o cpu_init.o
diff --git a/arch/m68k/cpu/mcf532x/Makefile b/arch/m68k/cpu/mcf532x/Makefile
index 97aa3f1..9c53c50 100644
--- a/arch/m68k/cpu/mcf532x/Makefile
+++ b/arch/m68k/cpu/mcf532x/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y := start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o
diff --git a/arch/m68k/cpu/mcf5445x/Makefile b/arch/m68k/cpu/mcf5445x/Makefile
index b506719..9be91ed 100644
--- a/arch/m68k/cpu/mcf5445x/Makefile
+++ b/arch/m68k/cpu/mcf5445x/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y	= start.o
 obj-y	= cpu.o speed.o cpu_init.o interrupts.o pci.o
diff --git a/arch/m68k/cpu/mcf547x_8x/Makefile b/arch/m68k/cpu/mcf547x_8x/Makefile
index 0fa50bf..4f82099 100644
--- a/arch/m68k/cpu/mcf547x_8x/Makefile
+++ b/arch/m68k/cpu/mcf547x_8x/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y = start.o
 obj-y	= cpu.o speed.o cpu_init.o pci.o interrupts.o slicetimer.o
diff --git a/arch/microblaze/dts/.gitignore b/arch/microblaze/dts/.gitignore
new file mode 100644
index 0000000..b60ed20
--- /dev/null
+++ b/arch/microblaze/dts/.gitignore
@@ -0,0 +1 @@
+*.dtb
diff --git a/arch/microblaze/dts/Makefile b/arch/microblaze/dts/Makefile
new file mode 100644
index 0000000..6d4a11f
--- /dev/null
+++ b/arch/microblaze/dts/Makefile
@@ -0,0 +1,11 @@
+dtb-y += microblaze-generic.dtb
+
+targets += $(dtb-y)
+
+DTC_FLAGS += -R 4 -p 0x1000
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+	@:
+
+clean-files := *.dtb
diff --git a/board/xilinx/dts/microblaze-generic.dts b/arch/microblaze/dts/microblaze-generic.dts
index 2033309..2033309 100644
--- a/board/xilinx/dts/microblaze-generic.dts
+++ b/arch/microblaze/dts/microblaze-generic.dts
diff --git a/arch/microblaze/lib/board.c b/arch/microblaze/lib/board.c
index 59956a8..fafeeae 100644
--- a/arch/microblaze/lib/board.c
+++ b/arch/microblaze/lib/board.c
@@ -87,7 +87,7 @@ void board_init_f(ulong not_used)
 
 #ifdef CONFIG_OF_EMBED
 	/* Get a pointer to the FDT */
-	gd->fdt_blob = _binary_dt_dtb_start;
+	gd->fdt_blob = __dtb_dt_begin;
 #elif defined CONFIG_OF_SEPARATE
 	/* FDT is at end of image */
 	gd->fdt_blob = (void *)__end;
diff --git a/arch/microblaze/lib/time.c b/arch/microblaze/lib/time.c
deleted file mode 100644
index e69de29..0000000
--- a/arch/microblaze/lib/time.c
+++ /dev/null
diff --git a/arch/mips/cpu/mips32/config.mk b/arch/mips/cpu/mips32/config.mk
index 067f871..7ee7faa 100644
--- a/arch/mips/cpu/mips32/config.mk
+++ b/arch/mips/cpu/mips32/config.mk
@@ -21,4 +21,4 @@ else
 PLATFORM_LDFLAGS  += -m elf32ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T $(srctree)/$(src)/mips.lds
diff --git a/arch/mips/cpu/mips64/config.mk b/arch/mips/cpu/mips64/config.mk
index d1a8b2c..02113a1 100644
--- a/arch/mips/cpu/mips64/config.mk
+++ b/arch/mips/cpu/mips64/config.mk
@@ -21,4 +21,4 @@ else
 PLATFORM_LDFLAGS  += -m elf64ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 -T mips64.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000 -T $(srctree)/$(src)/mips64.lds
diff --git a/arch/mips/cpu/xburst/config.mk b/arch/mips/cpu/xburst/config.mk
index d81da21..00b0fd9 100644
--- a/arch/mips/cpu/xburst/config.mk
+++ b/arch/mips/cpu/xburst/config.mk
@@ -12,4 +12,4 @@ else
 PLATFORM_LDFLAGS  += -m elf32ltsmip
 endif
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T $(srctree)/$(src)/mips.lds
diff --git a/arch/nds32/config.mk b/arch/nds32/config.mk
index e93e3a8..550f8a4 100644
--- a/arch/nds32/config.mk
+++ b/arch/nds32/config.mk
@@ -10,7 +10,7 @@
 
 CROSS_COMPILE ?= nds32le-linux-
 
-CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T nds32.lds
+CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T $(srctree)/$(src)/nds32.lds
 
 PLATFORM_RELFLAGS	+= -fno-strict-aliasing -fno-common -mrelax
 PLATFORM_RELFLAGS	+= -gdwarf-2
diff --git a/arch/nds32/cpu/n1213/Makefile b/arch/nds32/cpu/n1213/Makefile
index bb3550e..206d304 100644
--- a/arch/nds32/cpu/n1213/Makefile
+++ b/arch/nds32/cpu/n1213/Makefile
@@ -9,4 +9,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+# necessary to create built-in.o
+obj- := __dummy__.o
+
 extra-y	= start.o
diff --git a/arch/powerpc/cpu/mpc8xx/Makefile b/arch/powerpc/cpu/mpc8xx/Makefile
index d40bdab..f83fd5e 100644
--- a/arch/powerpc/cpu/mpc8xx/Makefile
+++ b/arch/powerpc/cpu/mpc8xx/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DET_DEBUG
+# ccflags-y += -DET_DEBUG
 
 extra-y += start.o
 extra-y += traps.o
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index a706d3c..e6d8be5 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -54,11 +54,11 @@ ifndef CONFIG_SPL_BUILD
 # Workaround for local bus unaligned access problems
 # on MPC512x and MPC5200
 ifdef CONFIG_MPC512X
-$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+AFLAGS_ppcstring.o += -Dmemcpy=__memcpy
 obj-y += memcpy_mpc5200.o
 endif
 ifdef CONFIG_MPC5200
-$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+AFLAGS_ppcstring.o += -Dmemcpy=__memcpy
 obj-y += memcpy_mpc5200.o
 endif
 endif
diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile
index b564294..63deded 100644
--- a/arch/sandbox/cpu/Makefile
+++ b/arch/sandbox/cpu/Makefile
@@ -10,7 +10,10 @@
 obj-y	:= cpu.o os.o start.o state.o
 
 # os.c is build in the system environment, so needs standard includes
-$(obj)os.o: CFLAGS := $(filter-out -nostdinc,\
-	$(patsubst -I%,-idirafter%,$(CFLAGS)))
-$(obj).depend.os: CPPFLAGS := $(filter-out -nostdinc,\
-	$(patsubst -I%,-idirafter%,$(CPPFLAGS)))
+# CFLAGS_REMOVE_os.o cannot be used to drop header include path
+quiet_cmd_cc_os.o = CC $(quiet_modtag)  $@
+cmd_cc_os.o = $(CC) $(filter-out -nostdinc, \
+	$(patsubst -I%,-idirafter%,$(c_flags))) -c -o $@ $<
+
+$(obj)/os.o: $(src)/os.c FORCE
+	$(call if_changed_dep,cc_os.o)
diff --git a/arch/sparc/config.mk b/arch/sparc/config.mk
index e94e7cb..9bb3724 100644
--- a/arch/sparc/config.mk
+++ b/arch/sparc/config.mk
@@ -7,6 +7,7 @@
 
 CROSS_COMPILE ?= sparc-elf-
 
-CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000 -L $(gcclibdir) -T sparc.lds
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000 -L $(gcclibdir) \
+			-T $(srctree)/$(src)/sparc.lds
 
 PLATFORM_CPPFLAGS += -DCONFIG_SPARC -D__sparc__
diff --git a/arch/x86/dts/.gitignore b/arch/x86/dts/.gitignore
new file mode 100644
index 0000000..b60ed20
--- /dev/null
+++ b/arch/x86/dts/.gitignore
@@ -0,0 +1 @@
+*.dtb
diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile
new file mode 100644
index 0000000..48265ef
--- /dev/null
+++ b/arch/x86/dts/Makefile
@@ -0,0 +1,12 @@
+dtb-y += link.dtb \
+	alex.dtb
+
+targets += $(dtb-y)
+
+DTC_FLAGS += -R 4 -p 0x1000
+
+PHONY += dtbs
+dtbs: $(addprefix $(obj)/, $(dtb-y))
+	@:
+
+clean-files := *.dtb
diff --git a/board/chromebook-x86/dts/alex.dts b/arch/x86/dts/alex.dts
index 2f13544..2f13544 100644
--- a/board/chromebook-x86/dts/alex.dts
+++ b/arch/x86/dts/alex.dts
diff --git a/board/chromebook-x86/dts/link.dts b/arch/x86/dts/link.dts
index 4a37dac..4a37dac 100644
--- a/board/chromebook-x86/dts/link.dts
+++ b/arch/x86/dts/link.dts
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 638f790..a35d062 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -23,5 +23,5 @@ obj-$(CONFIG_CMD_ZBOOT)	+= zimage.o
 LIBGCC := $(notdir $(NORMAL_LIBGCC))
 extra-y := $(LIBGCC)
 
-$(obj)$(LIBGCC): $(NORMAL_LIBGCC)
+$(obj)/$(LIBGCC): $(NORMAL_LIBGCC)
 	$(OBJCOPY) $< $@ --prefix-symbols=__normal_
diff --git a/arch/x86/lib/init_helpers.c b/arch/x86/lib/init_helpers.c
index 582c0ff..b5d937f 100644
--- a/arch/x86/lib/init_helpers.c
+++ b/arch/x86/lib/init_helpers.c
@@ -92,7 +92,7 @@ int find_fdt(void)
 {
 #ifdef CONFIG_OF_EMBED
 	/* Get a pointer to the FDT */
-	gd->fdt_blob = _binary_dt_dtb_start;
+	gd->fdt_blob = __dtb_dt_begin;
 #elif defined CONFIG_OF_SEPARATE
 	/* FDT is at end of image */
 	gd->fdt_blob = (ulong *)&_end;
diff --git a/board/ait/cam_enc_4xx/config.mk b/board/ait/cam_enc_4xx/config.mk
index d7e7894..c7cfaca 100644
--- a/board/ait/cam_enc_4xx/config.mk
+++ b/board/ait/cam_enc_4xx/config.mk
@@ -9,7 +9,7 @@
 
 UBL_CONFIG = $(SRCTREE)/board/$(BOARDDIR)/ublimage.cfg
 ifndef CONFIG_SPL_BUILD
-ALL-y += $(obj)u-boot.ubl
+ALL-y += u-boot.ubl
 else
 # as SPL_TEXT_BASE is not page-aligned, we need for some
 # linkers the -n flag (Do not page align data), to prevent
diff --git a/board/altera/socfpga/socfpga_cyclone5.c b/board/altera/socfpga/socfpga_cyclone5.c
index 576066b..a960eb6 100644
--- a/board/altera/socfpga/socfpga_cyclone5.c
+++ b/board/altera/socfpga/socfpga_cyclone5.c
@@ -12,6 +12,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#if defined(CONFIG_DISPLAY_CPUINFO)
 /*
  * Print CPU information
  */
@@ -20,6 +21,7 @@ int print_cpuinfo(void)
 	puts("CPU   : Altera SOCFPGA Platform\n");
 	return 0;
 }
+#endif
 
 /*
  * Print Board information
diff --git a/board/avionic-design/medcom-wide/Makefile b/board/avionic-design/medcom-wide/Makefile
index 87e1912..bcf7ccf 100644
--- a/board/avionic-design/medcom-wide/Makefile
+++ b/board/avionic-design/medcom-wide/Makefile
@@ -9,4 +9,4 @@
 
 obj-y	:= ../common/tamonten.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk
diff --git a/board/avionic-design/plutux/Makefile b/board/avionic-design/plutux/Makefile
index 87e1912..bcf7ccf 100644
--- a/board/avionic-design/plutux/Makefile
+++ b/board/avionic-design/plutux/Makefile
@@ -9,4 +9,4 @@
 
 obj-y	:= ../common/tamonten.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk
diff --git a/board/avionic-design/tec-ng/Makefile b/board/avionic-design/tec-ng/Makefile
index 79d86026..a556b92 100644
--- a/board/avionic-design/tec-ng/Makefile
+++ b/board/avionic-design/tec-ng/Makefile
@@ -7,4 +7,4 @@
 
 obj-y	:= ../common/tamonten-ng.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk
diff --git a/board/avionic-design/tec/Makefile b/board/avionic-design/tec/Makefile
index 87e1912..bcf7ccf 100644
--- a/board/avionic-design/tec/Makefile
+++ b/board/avionic-design/tec/Makefile
@@ -9,4 +9,4 @@
 
 obj-y	:= ../common/tamonten.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk
diff --git a/board/bct-brettl2/config.mk b/board/bct-brettl2/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/bct-brettl2/config.mk
+++ b/board/bct-brettl2/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/bf518f-ezbrd/config.mk b/board/bf518f-ezbrd/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/bf518f-ezbrd/config.mk
+++ b/board/bf518f-ezbrd/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/bf526-ezbrd/config.mk b/board/bf526-ezbrd/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/bf526-ezbrd/config.mk
+++ b/board/bf526-ezbrd/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/bf527-ad7160-eval/config.mk b/board/bf527-ad7160-eval/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/bf527-ad7160-eval/config.mk
+++ b/board/bf527-ad7160-eval/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/bf527-ezkit/config.mk b/board/bf527-ezkit/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/bf527-ezkit/config.mk
+++ b/board/bf527-ezkit/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/bf527-sdp/config.mk b/board/bf527-sdp/config.mk
index 5f327a9..af299f5 100644
--- a/board/bf527-sdp/config.mk
+++ b/board/bf527-sdp/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 6
diff --git a/board/bf533-ezkit/config.mk b/board/bf533-ezkit/config.mk
index 973d357..97eaafe 100644
--- a/board/bf533-ezkit/config.mk
+++ b/board/bf533-ezkit/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/bf533-stamp/config.mk b/board/bf533-stamp/config.mk
index 973d357..97eaafe 100644
--- a/board/bf533-stamp/config.mk
+++ b/board/bf533-stamp/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/bf537-stamp/config.mk b/board/bf537-stamp/config.mk
index ae2ea0b..bc0e747 100644
--- a/board/bf537-stamp/config.mk
+++ b/board/bf537-stamp/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/bf538f-ezkit/config.mk b/board/bf538f-ezkit/config.mk
index 973d357..97eaafe 100644
--- a/board/bf538f-ezkit/config.mk
+++ b/board/bf538f-ezkit/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/bf548-ezkit/config.mk b/board/bf548-ezkit/config.mk
index ad3a729..8d2c60f 100644
--- a/board/bf548-ezkit/config.mk
+++ b/board/bf548-ezkit/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA       := --dma 6
diff --git a/board/bf561-acvilon/config.mk b/board/bf561-acvilon/config.mk
index c33aef9..ce94715 100644
--- a/board/bf561-acvilon/config.mk
+++ b/board/bf561-acvilon/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16
diff --git a/board/bf561-ezkit/config.mk b/board/bf561-ezkit/config.mk
index c33aef9..ce94715 100644
--- a/board/bf561-ezkit/config.mk
+++ b/board/bf561-ezkit/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16
diff --git a/board/br4/config.mk b/board/br4/config.mk
index 5c18d5c..2436ec0 100644
--- a/board/br4/config.mk
+++ b/board/br4/config.mk
@@ -9,6 +9,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/cm-bf527/config.mk b/board/cm-bf527/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/cm-bf527/config.mk
+++ b/board/cm-bf527/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/cm-bf533/config.mk b/board/cm-bf533/config.mk
index 973d357..97eaafe 100644
--- a/board/cm-bf533/config.mk
+++ b/board/cm-bf533/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/cm-bf537e/config.mk b/board/cm-bf537e/config.mk
index 973d357..97eaafe 100644
--- a/board/cm-bf537e/config.mk
+++ b/board/cm-bf537e/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/cm-bf537u/config.mk b/board/cm-bf537u/config.mk
index 973d357..97eaafe 100644
--- a/board/cm-bf537u/config.mk
+++ b/board/cm-bf537u/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/cm-bf548/config.mk b/board/cm-bf548/config.mk
index c005afb..289c8a4 100644
--- a/board/cm-bf548/config.mk
+++ b/board/cm-bf548/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA       := --dma 6
diff --git a/board/cm-bf561/config.mk b/board/cm-bf561/config.mk
index c33aef9..ce94715 100644
--- a/board/cm-bf561/config.mk
+++ b/board/cm-bf561/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16
diff --git a/board/compal/paz00/Makefile b/board/compal/paz00/Makefile
index b2d3b6b..e6a0b29 100644
--- a/board/compal/paz00/Makefile
+++ b/board/compal/paz00/Makefile
@@ -16,4 +16,4 @@
 
 obj-y	:= paz00.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk
diff --git a/board/compulab/trimslice/Makefile b/board/compulab/trimslice/Makefile
index f3bd00d..311eb92 100644
--- a/board/compulab/trimslice/Makefile
+++ b/board/compulab/trimslice/Makefile
@@ -7,4 +7,4 @@
 
 obj-y	:= trimslice.o
 
-include ../../nvidia/common/common.mk
+include $(srctree)/board/nvidia/common/common.mk
diff --git a/board/cray/L1/Makefile b/board/cray/L1/Makefile
index 5f6c690..63f43da 100644
--- a/board/cray/L1/Makefile
+++ b/board/cray/L1/Makefile
@@ -9,8 +9,10 @@ obj-y	= L1.o flash.o
 obj-y	+= init.o
 obj-y	+= bootscript.o
 
-$(obj)bootscript.c: $(obj)bootscript.image
-	od -t x1 -v -A x $^ | awk -f x2c.awk > $@
+$(obj)/bootscript.c: $(obj)/bootscript.image
+	od -t x1 -v -A x $^ | awk -f $(srctree)/$(src)/x2c.awk > $@
 
-$(obj)bootscript.image: $(src)bootscript.hush $(src)Makefile
-	-$(OBJTREE)/tools/mkimage -A ppc -O linux -T script -C none -a 0 -e 0 -n bootscript -d $(src)bootscript.hush $@
+$(obj)/bootscript.image: $(src)/bootscript.hush
+	-$(OBJTREE)/tools/mkimage -A ppc -O linux -T script -C none -a 0 -e 0 -n bootscript -d $< $@
+
+clean-files := bootscript.c bootscript.image
+\ No newline at end of file
diff --git a/board/fads/fads.h b/board/fads/fads.h
index cf6c928..fa49080 100644
--- a/board/fads/fads.h
+++ b/board/fads/fads.h
@@ -127,8 +127,6 @@
 
 #define CONFIG_SYS_LOAD_ADDR		0x00100000
 
-#define	CONFIG_SYS_HZ		        1000	/* decrementer freq: 1 ms ticks */
-
 /*
  * Low Level Configuration Settings
  * (address mappings, register initial values, etc.)
diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 25f063d..f6a0879 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -13,7 +13,10 @@ MINIMAL=y
 endif
 endif
 
-ifndef MINIMAL
+ifdef MINIMAL
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
 obj-$(CONFIG_FSL_CADMUS)	+= cadmus.o
 obj-$(CONFIG_FSL_VIA)		+= cds_via.o
 obj-$(CONFIG_FMAN_ENET)	+= fman.o
diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c
index db0bf17..08dd66f 100644
--- a/board/freescale/mx53loco/mx53loco.c
+++ b/board/freescale/mx53loco/mx53loco.c
@@ -343,6 +343,7 @@ int board_early_init_f(void)
 	return 0;
 }
 
+#if defined(CONFIG_DISPLAY_CPUINFO)
 int print_cpuinfo(void)
 {
 	u32 cpurev;
@@ -356,6 +357,7 @@ int print_cpuinfo(void)
 	printf("Reset cause: %s\n", get_reset_cause());
 	return 0;
 }
+#endif
 
 /*
  * Do not overwrite the console
diff --git a/board/h2200/Makefile b/board/h2200/Makefile
index d4fa153..e516e91 100644
--- a/board/h2200/Makefile
+++ b/board/h2200/Makefile
@@ -10,5 +10,5 @@ obj-y	:= h2200.o
 
 extra-y := h2200-header.bin
 
-$(obj)h2200-header.bin: $(obj)h2200-header.o
+$(obj)/h2200-header.bin: $(obj)/h2200-header.o
 	$(OBJCOPY) -O binary $< $@
diff --git a/board/ip04/config.mk b/board/ip04/config.mk
index ae2ea0b..bc0e747 100644
--- a/board/ip04/config.mk
+++ b/board/ip04/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/matrix_vision/mvblm7/Makefile b/board/matrix_vision/mvblm7/Makefile
index 879d794..1bc1d61 100644
--- a/board/matrix_vision/mvblm7/Makefile
+++ b/board/matrix_vision/mvblm7/Makefile
@@ -8,5 +8,5 @@ obj-y	:= mvblm7.o pci.o fpga.o
 
 extra-y := bootscript.img
 
-$(obj)bootscript.img:
-	@mkimage -T script -C none -n M7_script -d bootscript $@
+$(obj)/bootscript.img: $(src)/bootscript
+	@mkimage -T script -C none -n M7_script -d $< $@
diff --git a/board/matrix_vision/mvblx/Makefile b/board/matrix_vision/mvblx/Makefile
index c6c0933..c056eba 100644
--- a/board/matrix_vision/mvblx/Makefile
+++ b/board/matrix_vision/mvblx/Makefile
@@ -8,4 +8,4 @@
 obj-y += mvblx.o fpga.o
 obj-$(CONFIG_ID_EEPROM) += sys_eeprom.o
 
-CFLAGS += -Werror
+ccflags-y += -Werror
diff --git a/board/matrix_vision/mvsmr/Makefile b/board/matrix_vision/mvsmr/Makefile
index b6a4f67..9454259 100644
--- a/board/matrix_vision/mvsmr/Makefile
+++ b/board/matrix_vision/mvsmr/Makefile
@@ -12,5 +12,5 @@ obj-y	:= mvsmr.o fpga.o
 
 extra-y := bootscript.img
 
-$(obj)bootscript.img: bootscript
+$(obj)/bootscript.img: $(src)/bootscript
 	@mkimage -T script -C none -n mvSMR_Script -d $< $@
diff --git a/board/nokia/rx51/rx51.h b/board/nokia/rx51/rx51.h
index 4a230dd..0d2f0a5 100644
--- a/board/nokia/rx51/rx51.h
+++ b/board/nokia/rx51/rx51.h
@@ -22,8 +22,6 @@ struct emu_hal_params_rx51 {
 	u32 param4;
 };
 
-int print_cpuinfo(void);
-
 /*
  * IEN  - Input Enable
  * IDIS - Input Disable
diff --git a/board/nvidia/common/Makefile b/board/nvidia/common/Makefile
index e3fcf2b..e3b2651 100644
--- a/board/nvidia/common/Makefile
+++ b/board/nvidia/common/Makefile
@@ -1,4 +1,4 @@
 # Copyright (c) 2011 The Chromium OS Authors.
 # SPDX-License-Identifier:	GPL-2.0+
 
-include common.mk
+include $(src)/common.mk
diff --git a/board/pcs440ep/config.mk b/board/pcs440ep/config.mk
index 1e76128..b90d5d0 100644
--- a/board/pcs440ep/config.mk
+++ b/board/pcs440ep/config.mk
@@ -10,7 +10,7 @@
 #
 
 # Check the U-Boot Image with a SHA1 checksum
-ALL-y += $(obj)u-boot.sha1
+ALL-y += u-boot.sha1
 
 PLATFORM_CPPFLAGS += -DCONFIG_440=1
 
diff --git a/board/pr1/config.mk b/board/pr1/config.mk
index 5c18d5c..2436ec0 100644
--- a/board/pr1/config.mk
+++ b/board/pr1/config.mk
@@ -9,6 +9,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/samsung/origen/Makefile b/board/samsung/origen/Makefile
index e8818bf..1add9fe 100644
--- a/board/samsung/origen/Makefile
+++ b/board/samsung/origen/Makefile
@@ -4,16 +4,19 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
-obj-y	+= origen.o
-endif
-
 ifdef CONFIG_SPL_BUILD
-all: $(OBJTREE)/tools/mk$(BOARD)spl
-endif
+# necessary to create built-in.o
+obj- := __dummy__.o
 
-# Fix ME after we implement hostprogs-y.
-ifdef CONFIG_SPL_BUILD
-$(OBJTREE)/tools/mk$(BOARD)spl:	tools/mkv310_image.c
-	$(HOSTCC) tools/mkv310_image.c -o $(OBJTREE)/tools/mk$(BOARD)spl
+hostprogs-y := tools/mkorigenspl
+always := $(hostprogs-y)
+
+# omit -O2 option to suppress
+#   warning: dereferencing type-punned pointer will break strict-aliasing rules
+#
+# TODO:
+# Fix the root cause in tools/mkorigenspl.c and delete the following work-around
+$(obj)/tools/mkorigenspl: HOSTCFLAGS:=$(filter-out -O2,$(HOSTCFLAGS))
+else
+obj-y	+= origen.o
 endif
diff --git a/board/samsung/origen/tools/mkv310_image.c b/board/samsung/origen/tools/mkorigenspl.c
index 3ed20ef..3ed20ef 100644
--- a/board/samsung/origen/tools/mkv310_image.c
+++ b/board/samsung/origen/tools/mkorigenspl.c
diff --git a/board/samsung/smdkv310/Makefile b/board/samsung/smdkv310/Makefile
index dbc621b..de0da16 100644
--- a/board/samsung/smdkv310/Makefile
+++ b/board/samsung/smdkv310/Makefile
@@ -4,16 +4,12 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
-obj-y	+= smdkv310.o
-endif
-
 ifdef CONFIG_SPL_BUILD
-all: $(OBJTREE)/tools/mk$(BOARD)spl
-endif
+# necessary to create built-in.o
+obj- := __dummy__.o
 
-# Fix ME after we implement hostprogs-y.
-ifdef CONFIG_SPL_BUILD
-$(OBJTREE)/tools/mk$(BOARD)spl:	tools/mkv310_image.c
-	$(HOSTCC) tools/mkv310_image.c -o $(OBJTREE)/tools/mk$(BOARD)spl
+hostprogs-y := tools/mksmdkv310spl
+always := $(hostprogs-y)
+else
+obj-y	+= smdkv310.o
 endif
diff --git a/board/samsung/smdkv310/tools/mkv310_image.c b/board/samsung/smdkv310/tools/mksmdkv310spl.c
index 9a64ca6..9a64ca6 100644
--- a/board/samsung/smdkv310/tools/mkv310_image.c
+++ b/board/samsung/smdkv310/tools/mksmdkv310spl.c
diff --git a/board/sandburst/karef/Makefile b/board/sandburst/karef/Makefile
index f890008..ce29b41 100644
--- a/board/sandburst/karef/Makefile
+++ b/board/sandburst/karef/Makefile
@@ -10,11 +10,7 @@
 #
 
 # TBS: add for debugging purposes
-BUILDUSER := $(shell whoami)
-FORCEBUILD := $(shell rm -f karef.o)
-
-CFLAGS += -DBUILDUSER='"$(BUILDUSER)"'
-# TBS: end debugging
+ccflags-y += -DBUILDUSER='"$(shell whoami)"'
 
 obj-y	= karef.o ../common/flash.o ../common/sb_common.o
 extra-y	+= init.o
diff --git a/board/sandburst/metrobox/Makefile b/board/sandburst/metrobox/Makefile
index 37d91a5..2c1028b 100644
--- a/board/sandburst/metrobox/Makefile
+++ b/board/sandburst/metrobox/Makefile
@@ -9,11 +9,7 @@
 #
 
 # TBS: add for debugging purposes
-BUILDUSER := $(shell whoami)
-FORCEBUILD := $(shell rm -f metrobox.o)
-
-CFLAGS += -DBUILDUSER='"$(BUILDUSER)"'
-# TBS: end debugging
+ccflags-y += -DBUILDUSER='"$(shell whoami)"'
 
 obj-y	= metrobox.o ../common/flash.o ../common/sb_common.o
 extra-y	+= init.o
diff --git a/board/spear/common/Makefile b/board/spear/common/Makefile
index 08dc09f..b0ba320 100644
--- a/board/spear/common/Makefile
+++ b/board/spear/common/Makefile
@@ -5,7 +5,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
 obj-y	:= spr_misc.o
 obj-y	+= spr_lowlevel_init.o
 endif
diff --git a/board/spear/x600/Makefile b/board/spear/x600/Makefile
index f9053fe..18d3dd2 100644
--- a/board/spear/x600/Makefile
+++ b/board/spear/x600/Makefile
@@ -5,6 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifndef CONFIG_SPL_BUILD
+ifdef CONFIG_SPL_BUILD
+# necessary to create built-in.o
+obj- := __dummy__.o
+else
 obj-y	:= fpga.o x600.o
 endif
diff --git a/board/st-ericsson/snowball/Makefile b/board/st-ericsson/snowball/Makefile
index 6867a70..f0605e2 100644
--- a/board/st-ericsson/snowball/Makefile
+++ b/board/st-ericsson/snowball/Makefile
@@ -4,6 +4,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -D__RELEASE -D__STN_8500
+ccflags-y += -D__RELEASE -D__STN_8500
 
 obj-y	:= snowball.o
diff --git a/board/st-ericsson/u8500/Makefile b/board/st-ericsson/u8500/Makefile
index b9dfbe9..d6c4280 100644
--- a/board/st-ericsson/u8500/Makefile
+++ b/board/st-ericsson/u8500/Makefile
@@ -4,6 +4,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -D__RELEASE -D__STN_8500
+ccflags-y += -D__RELEASE -D__STN_8500
 
 obj-y	:= u8500_href.o gpio.o
diff --git a/board/tcm-bf518/config.mk b/board/tcm-bf518/config.mk
index f1ef9bf..0d3df2d 100644
--- a/board/tcm-bf518/config.mk
+++ b/board/tcm-bf518/config.mk
@@ -7,6 +7,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
diff --git a/board/tcm-bf537/config.mk b/board/tcm-bf537/config.mk
index 973d357..97eaafe 100644
--- a/board/tcm-bf537/config.mk
+++ b/board/tcm-bf537/config.mk
@@ -7,9 +7,10 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS_lib += -O2
-CFLAGS_lib/lzma += -O2
-CFLAGS_lib/zlib += -O2
+# FIX ME
+ifneq ($(filter lib lib/lzma lib/zlib, $(obj)),)
+ccflags-y := -O2
+endif
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c
index 1b60b8f..bed8285 100644
--- a/board/ti/dra7xx/evm.c
+++ b/board/ti/dra7xx/evm.c
@@ -12,6 +12,7 @@
  */
 #include <common.h>
 #include <palmas.h>
+#include <sata.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/sata.h>
@@ -80,7 +81,7 @@ int board_init(void)
 
 int board_late_init(void)
 {
-	omap_sata_init();
+	init_sata(0);
 	return 0;
 }
 
diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c
index b549d72..3eaa5ac 100644
--- a/board/ti/omap5_uevm/evm.c
+++ b/board/ti/omap5_uevm/evm.c
@@ -15,6 +15,7 @@
 #include "mux_data.h"
 
 #if defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_XHCI_OMAP)
+#include <sata.h>
 #include <usb.h>
 #include <asm/gpio.h>
 #include <asm/arch/clock.h>
@@ -70,7 +71,7 @@ int board_init(void)
 
 int board_late_init(void)
 {
-	omap_sata_init();
+	init_sata(0);
 	return 0;
 }
 
diff --git a/common/Makefile b/common/Makefile
index a83246e..3b2ff9b 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -202,6 +202,9 @@ ifdef CONFIG_SPL_USB_HOST_SUPPORT
 obj-$(CONFIG_SPL_USB_SUPPORT) += usb.o usb_hub.o
 obj-$(CONFIG_USB_STORAGE) += usb_storage.o
 endif
+ifdef CONFIG_SPL_SATA_SUPPORT
+obj-$(CONFIG_CMD_SCSI) += cmd_scsi.o
+endif
 ifneq ($(CONFIG_SPL_NET_SUPPORT),y)
 obj-$(CONFIG_ENV_IS_NOWHERE) += env_nowhere.o
 obj-$(CONFIG_ENV_IS_IN_MMC) += env_mmc.o
@@ -235,11 +238,6 @@ obj-$(CONFIG_FIT_SIGNATURE) += image-sig.o
 obj-y += memsize.o
 obj-y += stdio.o
 
-$(obj)env_embedded.o: $(src)env_embedded.c
-	$(CC) $(AFLAGS) -Wa,--no-warn \
-		-DENV_CRC=$(shell $(obj)../tools/envcrc) \
-		-c -o $@ $(src)env_embedded.c
-
-# SEE README.arm-unaligned-accesses
-$(obj)hush.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
-$(obj)fdt_support.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+CFLAGS_env_embedded.o := -Wa,--no-warn -DENV_CRC=$(shell tools/envcrc 2>/dev/null)
+CFLAGS_hush.o := $(PLATFORM_NO_UNALIGNED)
+CFLAGS_fdt_support.o := $(PLATFORM_NO_UNALIGNED)
diff --git a/common/board_f.c b/common/board_f.c
index aa70c3e..02965b0 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -360,7 +360,7 @@ static int setup_fdt(void)
 {
 #ifdef CONFIG_OF_EMBED
 	/* Get a pointer to the FDT */
-	gd->fdt_blob = _binary_dt_dtb_start;
+	gd->fdt_blob = __dtb_dt_begin;
 #elif defined CONFIG_OF_SEPARATE
 	/* FDT is at end of image */
 # ifdef CONFIG_SYS_SYM_OFFSETS
@@ -887,9 +887,7 @@ static init_fnc_t init_sequence_f[] = {
 #ifdef CONFIG_PPC
 	checkcpu,
 #endif
-#if defined(CONFIG_DISPLAY_CPUINFO)
 	print_cpuinfo,		/* display cpu info (and speed) */
-#endif
 #if defined(CONFIG_MPC5xxx)
 	prt_mpc5xxx_clks,
 #endif /* CONFIG_MPC5xxx */
diff --git a/common/cmd_ext4.c b/common/cmd_ext4.c
index 8289d25..68b047b 100644
--- a/common/cmd_ext4.c
+++ b/common/cmd_ext4.c
@@ -79,8 +79,8 @@ int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc,
 	/* get the address in hexadecimal format (string to int) */
 	ram_address = simple_strtoul(argv[3], NULL, 16);
 
-	/* get the filesize in base 10 format */
-	file_size = simple_strtoul(argv[5], NULL, 10);
+	/* get the filesize in hexadecimal format */
+	file_size = simple_strtoul(argv[5], NULL, 16);
 
 	/* set the device as block device */
 	ext4fs_set_blk_dev(dev_desc, &info);
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c
index 7b97dc93..b3f7687 100644
--- a/common/cmd_scsi.c
+++ b/common/cmd_scsi.c
@@ -168,7 +168,9 @@ removable:
 		scsi_curr_dev = -1;
 
 	printf("Found %d device(s).\n", scsi_max_devs);
+#ifndef CONFIG_SPL_BUILD
 	setenv_ulong("scsidevs", scsi_max_devs);
+#endif
 }
 
 int scsi_get_disk_count(void)
diff --git a/common/cmd_test.c b/common/cmd_test.c
index bacc368..c93fe78 100644
--- a/common/cmd_test.c
+++ b/common/cmd_test.c
@@ -16,11 +16,54 @@
 
 #include <common.h>
 #include <command.h>
+#include <fs.h>
+
+#define OP_INVALID	0
+#define OP_NOT		1
+#define OP_OR		2
+#define OP_AND		3
+#define OP_STR_EMPTY	4
+#define OP_STR_NEMPTY	5
+#define OP_STR_EQ	6
+#define OP_STR_NEQ	7
+#define OP_STR_LT	8
+#define OP_STR_GT	9
+#define OP_INT_EQ	10
+#define OP_INT_NEQ	11
+#define OP_INT_LT	12
+#define OP_INT_LE	13
+#define OP_INT_GT	14
+#define OP_INT_GE	15
+#define OP_FILE_EXISTS	16
+
+const struct {
+	int arg;
+	const char *str;
+	int op;
+	int adv;
+} op_adv[] = {
+	{1, "=", OP_STR_EQ, 3},
+	{1, "!=", OP_STR_NEQ, 3},
+	{1, "<", OP_STR_LT, 3},
+	{1, ">", OP_STR_GT, 3},
+	{1, "-eq", OP_INT_EQ, 3},
+	{1, "-ne", OP_INT_NEQ, 3},
+	{1, "-lt", OP_INT_LT, 3},
+	{1, "-le", OP_INT_LE, 3},
+	{1, "-gt", OP_INT_GT, 3},
+	{1, "-ge", OP_INT_GE, 3},
+	{0, "!", OP_NOT, 1},
+	{0, "-o", OP_OR, 1},
+	{0, "-a", OP_AND, 1},
+	{0, "-z", OP_STR_EMPTY, 2},
+	{0, "-n", OP_STR_NEMPTY, 2},
+	{0, "-e", OP_FILE_EXISTS, 4},
+};
 
 static int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char * const *ap;
-	int left, adv, expr, last_expr, neg, last_cmp;
+	int i, op, left, adv, expr, last_expr, last_unop, last_binop;
 
 	/* args? */
 	if (argc < 3)
@@ -35,101 +78,112 @@ static int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	}
 #endif
 
-	last_expr = 0;
-	left = argc - 1; ap = argv + 1;
-	if (left > 0 && strcmp(ap[0], "!") == 0) {
-		neg = 1;
-		ap++;
-		left--;
-	} else
-		neg = 0;
-
-	expr = -1;
-	last_cmp = -1;
+	left = argc - 1;
+	ap = argv + 1;
+	expr = 0;
+	last_unop = OP_INVALID;
+	last_binop = OP_INVALID;
 	last_expr = -1;
 	while (left > 0) {
-
-		if (strcmp(ap[0], "-o") == 0 || strcmp(ap[0], "-a") == 0)
-			adv = 1;
-		else if (strcmp(ap[0], "-z") == 0 || strcmp(ap[0], "-n") == 0)
-			adv = 2;
-		else
-			adv = 3;
-
+		for (i = 0; i < ARRAY_SIZE(op_adv); i++) {
+			if (left <= op_adv[i].arg)
+				continue;
+			if (!strcmp(ap[op_adv[i].arg], op_adv[i].str)) {
+				op = op_adv[i].op;
+				adv = op_adv[i].adv;
+				break;
+			}
+		}
+		if (i == ARRAY_SIZE(op_adv)) {
+			expr = 1;
+			break;
+		}
 		if (left < adv) {
 			expr = 1;
 			break;
 		}
 
-		if (adv == 1) {
-			if (strcmp(ap[0], "-o") == 0) {
-				last_expr = expr;
-				last_cmp = 0;
-			} else if (strcmp(ap[0], "-a") == 0) {
-				last_expr = expr;
-				last_cmp = 1;
-			} else {
-				expr = 1;
-				break;
-			}
+		switch (op) {
+		case OP_STR_EMPTY:
+			expr = strlen(ap[1]) == 0 ? 1 : 0;
+			break;
+		case OP_STR_NEMPTY:
+			expr = strlen(ap[1]) == 0 ? 0 : 1;
+			break;
+		case OP_STR_EQ:
+			expr = strcmp(ap[0], ap[2]) == 0;
+			break;
+		case OP_STR_NEQ:
+			expr = strcmp(ap[0], ap[2]) != 0;
+			break;
+		case OP_STR_LT:
+			expr = strcmp(ap[0], ap[2]) < 0;
+			break;
+		case OP_STR_GT:
+			expr = strcmp(ap[0], ap[2]) > 0;
+			break;
+		case OP_INT_EQ:
+			expr = simple_strtol(ap[0], NULL, 10) ==
+					simple_strtol(ap[2], NULL, 10);
+			break;
+		case OP_INT_NEQ:
+			expr = simple_strtol(ap[0], NULL, 10) !=
+					simple_strtol(ap[2], NULL, 10);
+			break;
+		case OP_INT_LT:
+			expr = simple_strtol(ap[0], NULL, 10) <
+					simple_strtol(ap[2], NULL, 10);
+			break;
+		case OP_INT_LE:
+			expr = simple_strtol(ap[0], NULL, 10) <=
+					simple_strtol(ap[2], NULL, 10);
+			break;
+		case OP_INT_GT:
+			expr = simple_strtol(ap[0], NULL, 10) >
+					simple_strtol(ap[2], NULL, 10);
+			break;
+		case OP_INT_GE:
+			expr = simple_strtol(ap[0], NULL, 10) >=
+					simple_strtol(ap[2], NULL, 10);
+			break;
+		case OP_FILE_EXISTS:
+			expr = file_exists(ap[1], ap[2], ap[3], FS_TYPE_ANY);
+			break;
 		}
 
-		if (adv == 2) {
-			if (strcmp(ap[0], "-z") == 0)
-				expr = strlen(ap[1]) == 0 ? 1 : 0;
-			else if (strcmp(ap[0], "-n") == 0)
-				expr = strlen(ap[1]) == 0 ? 0 : 1;
-			else {
-				expr = 1;
-				break;
+		switch (op) {
+		case OP_OR:
+			last_expr = expr;
+			last_binop = OP_OR;
+			break;
+		case OP_AND:
+			last_expr = expr;
+			last_binop = OP_AND;
+			break;
+		case OP_NOT:
+			if (last_unop == OP_NOT)
+				last_unop = OP_INVALID;
+			else
+				last_unop = OP_NOT;
+			break;
+		default:
+			if (last_unop == OP_NOT) {
+				expr = !expr;
+				last_unop = OP_INVALID;
 			}
 
-			if (last_cmp == 0)
+			if (last_binop == OP_OR)
 				expr = last_expr || expr;
-			else if (last_cmp == 1)
+			else if (last_binop == OP_AND)
 				expr = last_expr && expr;
-			last_cmp = -1;
-		}
-
-		if (adv == 3) {
-			if (strcmp(ap[1], "=") == 0)
-				expr = strcmp(ap[0], ap[2]) == 0;
-			else if (strcmp(ap[1], "!=") == 0)
-				expr = strcmp(ap[0], ap[2]) != 0;
-			else if (strcmp(ap[1], ">") == 0)
-				expr = strcmp(ap[0], ap[2]) > 0;
-			else if (strcmp(ap[1], "<") == 0)
-				expr = strcmp(ap[0], ap[2]) < 0;
-			else if (strcmp(ap[1], "-eq") == 0)
-				expr = simple_strtol(ap[0], NULL, 10) == simple_strtol(ap[2], NULL, 10);
-			else if (strcmp(ap[1], "-ne") == 0)
-				expr = simple_strtol(ap[0], NULL, 10) != simple_strtol(ap[2], NULL, 10);
-			else if (strcmp(ap[1], "-lt") == 0)
-				expr = simple_strtol(ap[0], NULL, 10) < simple_strtol(ap[2], NULL, 10);
-			else if (strcmp(ap[1], "-le") == 0)
-				expr = simple_strtol(ap[0], NULL, 10) <= simple_strtol(ap[2], NULL, 10);
-			else if (strcmp(ap[1], "-gt") == 0)
-				expr = simple_strtol(ap[0], NULL, 10) > simple_strtol(ap[2], NULL, 10);
-			else if (strcmp(ap[1], "-ge") == 0)
-				expr = simple_strtol(ap[0], NULL, 10) >= simple_strtol(ap[2], NULL, 10);
-			else {
-				expr = 1;
-				break;
-			}
+			last_binop = OP_INVALID;
 
-			if (last_cmp == 0)
-				expr = last_expr || expr;
-			else if (last_cmp == 1)
-				expr = last_expr && expr;
-			last_cmp = -1;
+			break;
 		}
 
 		ap += adv; left -= adv;
 	}
 
-	if (neg)
-		expr = !expr;
-
 	expr = !expr;
 
 	debug (": returns %d\n", expr);
diff --git a/common/image-fdt.c b/common/image-fdt.c
index 6f9ce7d..a54a919 100644
--- a/common/image-fdt.c
+++ b/common/image-fdt.c
@@ -463,7 +463,7 @@ int image_setup_libfdt(bootm_headers_t *images, void *blob,
 		return -1;
 	}
 	arch_fixup_memory_node(blob);
-	if (IMAAGE_OF_BOARD_SETUP)
+	if (IMAGE_OF_BOARD_SETUP)
 		ft_board_setup(blob, gd->bd);
 	fdt_fixup_ethernet(blob);
 
diff --git a/common/image-fit.c b/common/image-fit.c
index cf4b67e..b94a3fe 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -1500,7 +1500,7 @@ int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
 	}
 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT_OK);
 	if (fit_uname) {
-		/* get ramdisk component image node offset */
+		/* get FIT component image node offset */
 		bootstage_mark(bootstage_id + BOOTSTAGE_SUB_UNIT_NAME);
 		noffset = fit_image_get_node(fit, fit_uname);
 	} else {
diff --git a/common/spl/Makefile b/common/spl/Makefile
index 65a1484..64569c2 100644
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -18,4 +18,5 @@ obj-$(CONFIG_SPL_NET_SUPPORT) += spl_net.o
 obj-$(CONFIG_SPL_MMC_SUPPORT) += spl_mmc.o
 obj-$(CONFIG_SPL_USB_SUPPORT) += spl_usb.o
 obj-$(CONFIG_SPL_FAT_SUPPORT) += spl_fat.o
+obj-$(CONFIG_SPL_SATA_SUPPORT) += spl_sata.o
 endif
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 0645cee..774fdad 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -210,6 +210,11 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
 		spl_usb_load_image();
 		break;
 #endif
+#ifdef CONFIG_SPL_SATA_SUPPORT
+	case BOOT_DEVICE_SATA:
+		spl_sata_load_image();
+		break;
+#endif
 	default:
 		debug("SPL: Un-supported Boot Device\n");
 		hang();
diff --git a/common/spl/spl_sata.c b/common/spl/spl_sata.c
new file mode 100644
index 0000000..2e7adca
--- /dev/null
+++ b/common/spl/spl_sata.c
@@ -0,0 +1,49 @@
+/*
+ * (C) Copyright 2013
+ * Texas Instruments, <www.ti.com>
+ *
+ * Dan Murphy <dmurphy@ti.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Derived work from spl_usb.c
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <asm/u-boot.h>
+#include <sata.h>
+#include <fat.h>
+#include <version.h>
+#include <image.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void spl_sata_load_image(void)
+{
+	int err;
+	block_dev_desc_t *stor_dev;
+
+	err = init_sata(CONFIG_SPL_SATA_BOOT_DEVICE);
+	if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+		printf("spl: sata init failed: err - %d\n", err);
+#endif
+		hang();
+	} else {
+		/* try to recognize storage devices immediately */
+		stor_dev = scsi_get_dev(0);
+	}
+
+#ifdef CONFIG_SPL_OS_BOOT
+	if (spl_start_uboot() || spl_load_image_fat_os(stor_dev,
+									CONFIG_SYS_SATA_FAT_BOOT_PARTITION))
+#endif
+	err = spl_load_image_fat(stor_dev,
+				CONFIG_SYS_SATA_FAT_BOOT_PARTITION,
+				CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME);
+	if (err) {
+		puts("Error loading sata device\n");
+		hang();
+	}
+}
diff --git a/config.mk b/config.mk
index 60e297a..5b886aa 100644
--- a/config.mk
+++ b/config.mk
@@ -6,49 +6,6 @@
 #
 #########################################################################
 
-# Set shell to bash if possible, otherwise fall back to sh
-SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
-	else if [ -x /bin/bash ]; then echo /bin/bash; \
-	else echo sh; fi; fi)
-
-export	SHELL
-
-ifeq ($(CURDIR),$(SRCTREE))
-dir :=
-else
-dir := $(subst $(SRCTREE)/,,$(CURDIR))
-endif
-
-ifneq ($(OBJTREE),$(SRCTREE))
-# Create object files for SPL in a separate directory
-ifeq ($(CONFIG_SPL_BUILD),y)
-ifeq ($(CONFIG_TPL_BUILD),y)
-obj := $(if $(dir),$(TPLTREE)/$(dir)/,$(TPLTREE)/)
-else
-obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
-endif
-else
-obj := $(if $(dir),$(OBJTREE)/$(dir)/,$(OBJTREE)/)
-endif
-src := $(if $(dir),$(SRCTREE)/$(dir)/,$(SRCTREE)/)
-
-$(shell mkdir -p $(obj))
-else
-# Create object files for SPL in a separate directory
-ifeq ($(CONFIG_SPL_BUILD),y)
-ifeq ($(CONFIG_TPL_BUILD),y)
-obj := $(if $(dir),$(TPLTREE)/$(dir)/,$(TPLTREE)/)
-else
-obj := $(if $(dir),$(SPLTREE)/$(dir)/,$(SPLTREE)/)
-
-endif
-$(shell mkdir -p $(obj))
-else
-obj :=
-endif
-src :=
-endif
-
 # clean the slate ...
 PLATFORM_RELFLAGS =
 PLATFORM_CPPFLAGS =
@@ -56,117 +13,6 @@ PLATFORM_LDFLAGS =
 
 #########################################################################
 
-HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
-		  $(HOSTCPPFLAGS)
-HOSTSTRIP	= strip
-
-#
-# Mac OS X / Darwin's C preprocessor is Apple specific.  It
-# generates numerous errors and warnings.  We want to bypass it
-# and use GNU C's cpp.	To do this we pass the -traditional-cpp
-# option to the compiler.  Note that the -traditional-cpp flag
-# DOES NOT have the same semantics as GNU C's flag, all it does
-# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
-#
-# Apple's linker is similar, thanks to the new 2 stage linking
-# multiple symbol definitions are treated as errors, hence the
-# -multiply_defined suppress option to turn off this error.
-#
-
-ifeq ($(HOSTOS),darwin)
-# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
-DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
-DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
-
-os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
-	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
-
-# Snow Leopards build environment has no longer restrictions as described above
-HOSTCC		 = $(call os_x_before, 10, 5, "cc", "gcc")
-HOSTCFLAGS	+= $(call os_x_before, 10, 4, "-traditional-cpp")
-HOSTLDFLAGS	+= $(call os_x_before, 10, 5, "-multiply_defined suppress")
-else
-HOSTCC		= gcc
-endif
-
-ifeq ($(HOSTOS),cygwin)
-HOSTCFLAGS	+= -ansi
-endif
-
-# We build some files with extra pedantic flags to try to minimize things
-# that won't build on some weird host compiler -- though there are lots of
-# exceptions for files that aren't complaint.
-
-HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
-HOSTCFLAGS	+= -pedantic
-
-#########################################################################
-#
-# Option checker, gcc version (courtesy linux kernel) to ensure
-# only supported compiler options are used
-#
-CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
-CC_TEST_OFILE := $(OBJTREE)/include/generated/cc_test_file.o
-
--include $(CC_OPTIONS_CACHE_FILE)
-
-cc-option-sys = $(shell mkdir -p $(dir $(CC_TEST_OFILE)); \
-		if $(CC) $(CFLAGS) $(1) -S -xc /dev/null -o $(CC_TEST_OFILE) \
-		> /dev/null 2>&1; then \
-		echo 'CC_OPTIONS += $(strip $1)' >> $(CC_OPTIONS_CACHE_FILE); \
-		echo "$(1)"; fi)
-
-ifeq ($(CONFIG_CC_OPT_CACHE_DISABLE),y)
-cc-option = $(strip $(if $(call cc-option-sys,$1),$1,$2))
-else
-cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
-		$(if $(call cc-option-sys,$1),$1,$2)))
-endif
-
-# cc-version
-# Usage gcc-ver := $(call cc-version)
-cc-version = $(shell $(SHELL) $(SRCTREE)/scripts/gcc-version.sh $(CC))
-binutils-version = $(shell $(SHELL) $(SRCTREE)/scripts/binutils-version.sh $(AS))
-dtc-version = $(shell $(SHELL) $(SRCTREE)/scripts/dtc-version.sh $(DTC))
-
-#
-# Include the make variables (CC, etc...)
-#
-AS	= $(CROSS_COMPILE)as
-
-# Always use GNU ld
-LD	= $(shell if $(CROSS_COMPILE)ld.bfd -v > /dev/null 2>&1; \
-		then echo "$(CROSS_COMPILE)ld.bfd"; else echo "$(CROSS_COMPILE)ld"; fi;)
-
-CC	= $(CROSS_COMPILE)gcc
-CPP	= $(CC) -E
-AR	= $(CROSS_COMPILE)ar
-NM	= $(CROSS_COMPILE)nm
-LDR	= $(CROSS_COMPILE)ldr
-STRIP	= $(CROSS_COMPILE)strip
-OBJCOPY = $(CROSS_COMPILE)objcopy
-OBJDUMP = $(CROSS_COMPILE)objdump
-RANLIB	= $(CROSS_COMPILE)RANLIB
-DTC	= dtc
-CHECK	= sparse
-
-#########################################################################
-
-# Load generated board configuration
-ifeq ($(CONFIG_TPL_BUILD),y)
-# Include TPL autoconf
-sinclude $(OBJTREE)/include/tpl-autoconf.mk
-else
-ifeq ($(CONFIG_SPL_BUILD),y)
-# Include SPL autoconf
-sinclude $(OBJTREE)/include/spl-autoconf.mk
-else
-# Include normal autoconf
-sinclude $(OBJTREE)/include/autoconf.mk
-endif
-endif
-sinclude $(OBJTREE)/include/config.mk
-
 # Some architecture config.mk files need to know what CPUDIR is set to,
 # so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
 # Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
@@ -193,189 +39,14 @@ endif
 
 #########################################################################
 
-# We don't actually use $(ARFLAGS) anywhere anymore, so catch people
-# who are porting old code to latest mainline but not updating $(AR).
-ARFLAGS = $(error update your Makefile to use cmd_link_o_target and not AR)
 RELFLAGS= $(PLATFORM_RELFLAGS)
-DBGFLAGS= -g # -DDEBUG
-OPTFLAGS= -Os #-fomit-frame-pointer
 
 OBJCFLAGS += --gap-fill=0xff
 
-gccincdir := $(shell $(CC) -print-file-name=include)
-
-CPPFLAGS := $(DBGFLAGS) $(OPTFLAGS) $(RELFLAGS)		\
-	-D__KERNEL__
-
-# Enable garbage collection of un-used sections for SPL
-ifeq ($(CONFIG_SPL_BUILD),y)
-CPPFLAGS += -ffunction-sections -fdata-sections
-LDFLAGS_FINAL += --gc-sections
-endif
-
-# TODO(sjg@chromium.org): Is this correct on Mac OS?
-
-# MXSImage needs LibSSL
-ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
-HOSTLIBS	+= -lssl -lcrypto
-# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
-# the mxsimage support within tools/mxsimage.c .
-HOSTCFLAGS	+= -DCONFIG_MXS
-endif
-
-ifdef CONFIG_FIT_SIGNATURE
-HOSTLIBS	+= -lssl -lcrypto
-
-# This affects include/image.h, but including the board config file
-# is tricky, so manually define this options here.
-HOSTCFLAGS	+= -DCONFIG_FIT_SIGNATURE
-endif
-
-ifneq ($(CONFIG_SYS_TEXT_BASE),)
-CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
-endif
-
-ifeq ($(CONFIG_SPL_BUILD),y)
-CPPFLAGS += -DCONFIG_SPL_BUILD
-ifeq ($(CONFIG_TPL_BUILD),y)
-CPPFLAGS += -DCONFIG_TPL_BUILD
-endif
-endif
-
-# Does this architecture support generic board init?
-ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
-ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
-CHECK_GENERIC_BOARD = $(error Your architecture does not support generic board. \
-Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
-endif
-endif
-
-ifneq ($(OBJTREE),$(SRCTREE))
-CPPFLAGS += -I$(OBJTREE)/include
-endif
-
-CPPFLAGS += -I$(TOPDIR)/include -I$(SRCTREE)/arch/$(ARCH)/include
-CPPFLAGS += -fno-builtin -ffreestanding -nostdinc	\
-	-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
-
-CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
-
-ifdef BUILD_TAG
-CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
-endif
-
-CFLAGS_SSP := $(call cc-option,-fno-stack-protector)
-CFLAGS += $(CFLAGS_SSP)
-# Some toolchains enable security related warning flags by default,
-# but they don't make much sense in the u-boot world, so disable them.
-CFLAGS_WARN := $(call cc-option,-Wno-format-nonliteral) \
-	       $(call cc-option,-Wno-format-security)
-CFLAGS += $(CFLAGS_WARN)
-
-# Report stack usage if supported
-CFLAGS_STACK := $(call cc-option,-fstack-usage)
-CFLAGS += $(CFLAGS_STACK)
+CPPFLAGS = $(RELFLAGS)
+CPPFLAGS += -pipe $(PLATFORM_CPPFLAGS)
 
 BCURDIR = $(subst $(SRCTREE)/,,$(CURDIR:$(obj)%=%))
 
-ifeq ($(findstring examples/,$(BCURDIR)),)
-ifeq ($(CONFIG_SPL_BUILD),)
-ifdef FTRACE
-CFLAGS += -finstrument-functions -DFTRACE
-endif
-endif
-endif
-
-# $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
-# option to the assembler.
-AFLAGS_DEBUG :=
-
-# turn jbsr into jsr for m68k
-ifeq ($(ARCH),m68k)
-ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
-AFLAGS_DEBUG := -Wa,-gstabs,-S
-endif
-endif
-
-AFLAGS := $(AFLAGS_DEBUG) -D__ASSEMBLY__ $(CPPFLAGS)
-
 LDFLAGS += $(PLATFORM_LDFLAGS)
 LDFLAGS_FINAL += -Bstatic
-
-LDFLAGS_u-boot += -T $(obj)u-boot.lds $(LDFLAGS_FINAL)
-ifneq ($(CONFIG_SYS_TEXT_BASE),)
-LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
-endif
-
-LDFLAGS_$(SPL_BIN) += -T $(obj)u-boot-spl.lds $(LDFLAGS_FINAL)
-ifneq ($(CONFIG_SPL_TEXT_BASE),)
-LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
-endif
-
-# Linus' kernel sanity checking tool
-CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
-
-# Location of a usable BFD library, where we define "usable" as
-# "built for ${HOST}, supports ${TARGET}".  Sensible values are
-# - When cross-compiling: the root of the cross-environment
-# - Linux/ppc (native): /usr
-# - NetBSD/ppc (native): you lose ... (must extract these from the
-#   binutils build directory, plus the native and U-Boot include
-#   files don't like each other)
-#
-# So far, this is used only by tools/gdb/Makefile.
-
-ifeq ($(HOSTOS),darwin)
-BFD_ROOT_DIR =		/usr/local/tools
-else
-ifeq ($(HOSTARCH),$(ARCH))
-# native
-BFD_ROOT_DIR =		/usr
-else
-#BFD_ROOT_DIR =		/LinuxPPC/CDK		# Linux/i386
-#BFD_ROOT_DIR =		/usr/pkg/cross		# NetBSD/i386
-BFD_ROOT_DIR =		/opt/powerpc
-endif
-endif
-
-#########################################################################
-
-export	HOSTCC HOSTCFLAGS HOSTLDFLAGS PEDCFLAGS HOSTSTRIP CROSS_COMPILE \
-	AS LD CC CPP AR NM STRIP OBJCOPY OBJDUMP MAKE
-export	CONFIG_SYS_TEXT_BASE PLATFORM_CPPFLAGS PLATFORM_RELFLAGS CPPFLAGS CFLAGS AFLAGS
-
-#########################################################################
-
-# Allow boards to use custom optimize flags on a per dir/file basis
-ALL_AFLAGS = $(AFLAGS) $(AFLAGS_$(BCURDIR)/$(@F)) $(AFLAGS_$(BCURDIR))
-ALL_CFLAGS = $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR))
-EXTRA_CPPFLAGS = $(CPPFLAGS_$(BCURDIR)/$(@F)) $(CPPFLAGS_$(BCURDIR))
-ALL_CFLAGS += $(EXTRA_CPPFLAGS)
-
-# The _DEP version uses the $< file target (for dependency generation)
-# See rules.mk
-EXTRA_CPPFLAGS_DEP = $(CPPFLAGS_$(BCURDIR)/$(addsuffix .o,$(basename $<))) \
-		$(CPPFLAGS_$(BCURDIR))
-$(obj)%.s:	%.S
-	$(CPP) $(ALL_AFLAGS) -o $@ $<
-$(obj)%.o:	%.S
-	$(CC)  $(ALL_AFLAGS) -o $@ $< -c
-$(obj)%.o:	%.c
-ifneq ($(CHECKSRC),0)
-	$(CHECK) $(CHECKFLAGS) $(ALL_CFLAGS) $<
-endif
-	$(CC)  $(ALL_CFLAGS) -o $@ $< -c
-$(obj)%.i:	%.c
-	$(CPP) $(ALL_CFLAGS) -o $@ $< -c
-$(obj)%.s:	%.c
-	$(CC)  $(ALL_CFLAGS) -o $@ $< -c -S
-
-#########################################################################
-
-# If the list of objects to link is empty, just create an empty built-in.o
-cmd_link_o_target = $(if $(strip $1),\
-		      $(LD) $(LDFLAGS) -r -o $@ $1,\
-		      rm -f $@; $(AR) rcs $@ )
-
-#########################################################################
diff --git a/disk/Makefile b/disk/Makefile
index 48abec8..6970cec 100644
--- a/disk/Makefile
+++ b/disk/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-#CFLAGS += -DET_DEBUG -DDEBUG
+#ccflags-y += -DET_DEBUG -DDEBUG
 
 obj-$(CONFIG_PARTITIONS) 	+= part.o
 obj-$(CONFIG_MAC_PARTITION)   += part_mac.o
diff --git a/doc/DocBook/.gitignore b/doc/DocBook/.gitignore
index 90c1b11..720f245 100644
--- a/doc/DocBook/.gitignore
+++ b/doc/DocBook/.gitignore
@@ -1,4 +1,3 @@
-*/
 *.xml
 *.ps
 *.pdf
diff --git a/doc/DocBook/Makefile b/doc/DocBook/Makefile
index 29b79d7..44afc47 100644
--- a/doc/DocBook/Makefile
+++ b/doc/DocBook/Makefile
@@ -1,14 +1,12 @@
 ###
 # This makefile is used to generate the kernel documentation,
 # primarily based on in-line comments in various source files.
-# See doc/kernel-doc-nano-HOWTO.txt for instruction in how
+# See Documentation/kernel-doc-nano-HOWTO.txt for instruction in how
 # to document the SRC - and how to read it.
 # To add a new book the only step required is to add the book to the
 # list of DOCBOOKS.
 
-include $(TOPDIR)/config.mk
-
-DOCBOOKS := fs.xml linker_lists.xml stdio.xml
+DOCBOOKS := linker_lists.xml stdio.xml
 
 ###
 # The build process is as follows (targets):
@@ -26,9 +24,9 @@ PS_METHOD	= $(prefer-db2x)
 
 ###
 # The targets that may be used.
-PHONY += $(obj).depend xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
+PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
 
-BOOKS := $(addprefix $(OBJTREE)/doc/DocBook/,$(DOCBOOKS))
+BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
 xmldocs: $(BOOKS)
 sgmldocs: xmldocs
 
@@ -53,10 +51,10 @@ installmandocs: mandocs
 
 ###
 #External programs used
-KERNELDOC = $(SRCTREE)/tools/kernel-doc/kernel-doc
-DOCPROC   = $(OBJTREE)/tools/kernel-doc/docproc
+KERNELDOC = $(srctree)/scripts/kernel-doc
+DOCPROC   = $(objtree)/scripts/docproc
 
-XMLTOFLAGS = -m $(SRCTREE)/doc/DocBook/stylesheet.xsl
+XMLTOFLAGS = -m $(srctree)/doc/DocBook/stylesheet.xsl
 XMLTOFLAGS += --skip-validation
 
 ###
@@ -66,28 +64,36 @@ XMLTOFLAGS += --skip-validation
 #     appropriate parameters.
 # The following rules are used to generate the .xml documentation
 # required to generate the final targets. (ps, pdf, html).
-%.xml: %.tmpl
-	$(DOCPROC) doc $< >$@
-
-ifeq ($@, "cleandocs")
-sinclude $(obj).depend
-$(obj).depend: $(patsubst %.xml, %.tmpl, $(DOCBOOKS))
-	rm -f $(obj).depend ;					\
-	touch $(obj).depend ;					\
-	for file in $^ ; do					\
-		xmlfile=`echo "$${file}" |			\
-			sed "s/tmpl$$/xml/"` ;			\
-		echo -n "$${xmlfile}: ">> $(obj).depend ;	\
-		$(DOCPROC) depend $$file >> $(obj).depend ;	\
-		echo -e "\n\t$(DOCPROC) doc $< >$${xmlfile} " >>	\
-			$(obj).depend ;				\
-	done
+quiet_cmd_docproc = DOCPROC $@
+      cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
+define rule_docproc
+	set -e;								\
+        $(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))';) 	\
+        $(cmd_$(1)); 							\
+        ( 								\
+          echo 'cmd_$@ := $(cmd_$(1))'; 				\
+          echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; 		\
+        ) > $(dir $@).$(notdir $@).cmd
+endef
+
+%.xml: %.tmpl FORCE
+	$(call if_changed_rule,docproc)
+
+###
+#Read in all saved dependency files
+cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
+
+ifneq ($(cmd_files),)
+  include $(cmd_files)
 endif
 
 ###
 # Changes in kernel-doc force a rebuild of all documentation
 $(BOOKS): $(KERNELDOC)
 
+# Tell kbuild to always build the programs
+always := $(hostprogs-y)
+
 notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
 		   exit 1
 db2xtemplate = db2TYPE -o $(dir $@) $<
@@ -113,37 +119,34 @@ endif
 quiet_cmd_db2ps = PS      $@
       cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
 %.ps : %.xml
-	$(call cmd_db2ps)
+	$(call cmd,db2ps)
 
 quiet_cmd_db2pdf = PDF     $@
       cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
 %.pdf : %.xml
-	$(call cmd_db2pdf)
+	$(call cmd,db2pdf)
 
 
 index = index.html
-main_idx = $(index)
+main_idx = doc/DocBook/$(index)
 build_main_index = rm -rf $(main_idx); \
 		   echo '<h1>U-Boot Bootloader HTML Documentation</h1>' >> $(main_idx) && \
 		   echo '<h2>U-Boot Version: $(U_BOOT_VERSION)</h2>' >> $(main_idx) && \
 		   cat $(HTML) >> $(main_idx)
 
-# To work around bug [1] in docbook-xsl-stylesheets 1.76.1 , generate only html
-# docs instead of xhtml with xmlto.
-# [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654338
 quiet_cmd_db2html = HTML    $@
-      cmd_db2html = xmlto html $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
+      cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
 		echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
-	$(patsubst %.html,%,$(notdir $@))</a><p>' > $@
+        $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
 
 %.html:	%.xml
 	@(which xmlto > /dev/null 2>&1) || \
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
 	@rm -rf $@ $(patsubst %.html,%,$@)
-	$(call cmd_db2html)
+	$(call cmd,db2html)
 	@if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
-	    cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
+            cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
 
 quiet_cmd_db2man = MAN     $@
       cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
@@ -151,8 +154,8 @@ quiet_cmd_db2man = MAN     $@
 	@(which xmlto > /dev/null 2>&1) || \
 	 (echo "*** You need to install xmlto ***"; \
 	  exit 1)
-	$(Q)mkdir -p $(obj)man
-	$(call cmd_db2man)
+	$(Q)mkdir -p $(obj)/man
+	$(call cmd,db2man)
 	@touch $@
 
 ###
@@ -164,7 +167,7 @@ quiet_cmd_fig2eps = FIG2EPS $@
 	@(which fig2dev > /dev/null 2>&1) || \
 	 (echo "*** You need to install transfig ***"; \
 	  exit 1)
-	$(call cmd_fig2eps)
+	$(call cmd,fig2eps)
 
 quiet_cmd_fig2png = FIG2PNG $@
       cmd_fig2png = fig2dev -Lpng $< $@
@@ -173,7 +176,7 @@ quiet_cmd_fig2png = FIG2PNG $@
 	@(which fig2dev > /dev/null 2>&1) || \
 	 (echo "*** You need to install transfig ***"; \
 	  exit 1)
-	$(call cmd_fig2png)
+	$(call cmd,fig2png)
 
 ###
 # Rule to convert a .c file to inline XML documentation
@@ -219,9 +222,8 @@ clean-files := $(DOCBOOKS) \
 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
 
 cleandocs:
-	@rm -f $(obj).depend
-	@$(Q)rm -f $(call objectify, $(clean-files))
-	@$(Q)rm -rf $(call objectify, $(clean-dirs))
+	$(Q)rm -f $(call objectify, $(clean-files))
+	$(Q)rm -rf $(call objectify, $(clean-dirs))
 
 # Declare the contents of the .PHONY variable as phony.  We keep that
 # information in a variable se we can use it in if_changed and friends.
diff --git a/doc/DocBook/stylesheet.xsl b/doc/DocBook/stylesheet.xsl
index 8adce56..85b2527 100644
--- a/doc/DocBook/stylesheet.xsl
+++ b/doc/DocBook/stylesheet.xsl
@@ -7,5 +7,4 @@
 <!-- <param name="paper.type">A4</param> -->
 <param name="generate.section.toc.level">2</param>
 <param name="use.id.as.filename">1</param>
-<param name="html.stylesheet">../docbook.css</param>
 </stylesheet>
diff --git a/drivers/bios_emulator/Makefile b/drivers/bios_emulator/Makefile
index 52a2ceb..e56356e 100644
--- a/drivers/bios_emulator/Makefile
+++ b/drivers/bios_emulator/Makefile
@@ -8,8 +8,5 @@ obj-y = atibios.o biosemu.o besys.o bios.o \
 	$(X86DIR)/sys.o \
 	$(X86DIR)/debug.o
 
-EXTRA_CFLAGS += -I. -I./include \
+ccflags-y := -I$(srctree)/$(src) -I$(srctree)/$(src)/include \
 	-D__PPC__  -D__BIG_ENDIAN__
-
-CFLAGS += $(EXTRA_CFLAGS)
-CPPFLAGS += $(EXTRA_CFLAGS)
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index a78a724..25b8e8a 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -8,7 +8,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-#CFLAGS += -DDEBUG
+#ccflags-y += -DDEBUG
 
 obj-$(CONFIG_DTT_ADM1021) += adm1021.o
 obj-$(CONFIG_DTT_ADT7460) += adt7460.o
diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c
index 32c2ab9..994500b 100644
--- a/drivers/net/phy/atheros.c
+++ b/drivers/net/phy/atheros.c
@@ -52,7 +52,7 @@ static struct phy_driver AR8031_driver =  {
 	.uid = 0x4dd074,
 	.mask = 0xffffffef,
 	.features = PHY_GBIT_FEATURES,
-	.config = ar8021_config,
+	.config = genphy_config,
 	.startup = genphy_startup,
 	.shutdown = genphy_shutdown,
 };
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index d5a2725..003d322 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-#CFLAGS += -DDEBUG
+#ccflags-y += -DDEBUG
 
 obj-$(CONFIG_RTC_AT91SAM9_RTT) += at91sam9_rtt.o
 obj-$(CONFIG_RTC_BFIN) += bfin_rtc.o
diff --git a/drivers/usb/musb-new/Makefile b/drivers/usb/musb-new/Makefile
index ba72348..3facf0f 100644
--- a/drivers/usb/musb-new/Makefile
+++ b/drivers/usb/musb-new/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_USB_MUSB_DSPS) += musb_dsps.o
 obj-$(CONFIG_USB_MUSB_AM35X) += am35x.o
 obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o
 
-CFLAGS_NO_WARN := $(call cc-option,-Wno-unused-variable) \
-			$(call cc-option,-Wno-unused-but-set-variable) \
-			$(call cc-option,-Wno-unused-label)
-CFLAGS += $(CFLAGS_NO_WARN)
+ccflags-y := $(call cc-option,-Wno-unused-variable) \
+		$(call cc-option,-Wno-unused-but-set-variable) \
+		$(call cc-option,-Wno-unused-label)
diff --git a/dts/.gitignore b/dts/.gitignore
new file mode 100644
index 0000000..1b37180
--- /dev/null
+++ b/dts/.gitignore
@@ -0,0 +1,2 @@
+*.dtb
+*.dtb.S
diff --git a/dts/Makefile b/dts/Makefile
index 6c7198f..9907463 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -7,64 +7,41 @@
 # This Makefile builds the internal U-Boot fdt if CONFIG_OF_CONTROL is
 # enabled. See doc/README.fdt-control for more details.
 
+DEVICE_TREE ?= $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
 ifeq ($(DEVICE_TREE),)
-$(if $(CONFIG_DEFAULT_DEVICE_TREE),,\
-$(error Please define CONFIG_DEFAULT_DEVICE_TREE in your board header file))
-DEVICE_TREE = $(CONFIG_DEFAULT_DEVICE_TREE:"%"=%)
+DEVICE_TREE := unset
 endif
 
-DTS_INCDIRS =  $(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts
-DTS_INCDIRS += $(SRCTREE)/board/$(VENDOR)/dts
-DTS_INCDIRS += $(SRCTREE)/arch/$(ARCH)/dts
+DTB := arch/$(ARCH)/dts/$(DEVICE_TREE).dtb
 
-DTS_CPPFLAGS := -x assembler-with-cpp -undef -D__DTS__ \
-		-nostdinc $(addprefix -I,$(DTS_INCDIRS))
+quiet_cmd_copy = COPY    $@
+      cmd_copy = cp $< $@
 
-DTC_FLAGS := -R 4 -p 0x1000 \
-	$(addprefix -i ,$(DTS_INCDIRS))
+$(obj)/dt.dtb: $(DTB) FORCE
+	$(call if_changed,copy)
 
-# Use a constant name for this so we can access it from C code.
-# objcopy doesn't seem to allow us to set the symbol name independently of
-# the filename.
-DT_BIN	:= $(obj)dt.dtb
+targets += dt.dtb
 
-$(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
-	$(CPP) $(DTS_CPPFLAGS) $< -o $(DT_BIN).dts.tmp
-	$(DTC) $(DTC_FLAGS) -O dtb -o ${DT_BIN} $(DT_BIN).dts.tmp
+$(DTB): arch-dtbs
+	$(Q)test -e $@ || (						\
+	echo >&2;							\
+	echo >&2 "Device Tree Source is not correctly specified.";	\
+	echo >&2 "Please define 'CONFIG_DEFAULT_DEVICE_TREE'";		\
+	echo >&2 "or build with 'DEVICE_TREE=<device_tree>' argument";	\
+	echo >&2;							\
+	/bin/false)
 
-process_lds = \
-	$(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'
+arch-dtbs:
+	$(Q)$(MAKE) $(build)=arch/$(ARCH)/dts dtbs
 
-# Run the compiler and get the link script from the linker
-GET_LDS = $(CC) $(CFLAGS) $(LDFLAGS) -Wl,--verbose 2>&1
+.SECONDARY: $(obj)/dt.dtb.S
 
-$(obj)dt.o: $(DT_BIN)
-	# We want the output format and arch.
-	# We also hope to win a prize for ugliest Makefile / shell interaction
-	# We look in the LDSCRIPT first.
-	# Then try the linker which should give us the answer.
-	# Then check it worked.
-	[ -n "$(LDSCRIPT)" ] && \
-		oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` && \
-		oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\
-	\
-	[ -z $${oformat} ] && \
-		oformat=`$(call process_lds,$(GET_LDS),FORMAT)` ;\
-	[ -z $${oarch} ] && \
-		oarch=`$(call process_lds,$(GET_LDS),ARCH)` ;\
-	\
-	[ -z $${oformat} ] && \
-		echo "Cannot read OUTPUT_FORMAT from lds file $(LDSCRIPT)" && \
-		exit 1 || true ;\
-	[ -z $${oarch} ] && \
-		echo "Cannot read OUTPUT_ARCH from lds file $(LDSCRIPT)" && \
-		exit 1 || true ;\
-	\
-	cd $(dir ${DT_BIN}) && \
-	$(OBJCOPY) -I binary -O $${oformat} -B $${oarch} \
-		$(notdir ${DT_BIN}) $@
-	rm $(DT_BIN)
+obj-$(CONFIG_OF_EMBED) := dt.dtb.o
 
-obj-$(CONFIG_OF_EMBED)	:= dt.o
+dtbs: $(obj)/dt.dtb
+	@:
 
-binary:	$(DT_BIN)
+clean-files := dt.dtb.S
+
+# Let clean descend into dts directories
+subdir- += ../arch/*/dts
diff --git a/examples/Makefile b/examples/Makefile
new file mode 100644
index 0000000..18d008e
--- /dev/null
+++ b/examples/Makefile
@@ -0,0 +1,9 @@
+ifndef CONFIG_SANDBOX
+
+ifdef FTRACE
+subdir-ccflags-y += -finstrument-functions -DFTRACE
+endif
+
+subdir-y += standalone
+subdir-$(CONFIG_API) += api
+endif
diff --git a/examples/api/Makefile b/examples/api/Makefile
index cad10a3..09475f8 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -11,10 +11,8 @@ ifeq ($(ARCH),arm)
 LOAD_ADDR = 0x1000000
 endif
 
-include $(TOPDIR)/config.mk
-
 # Resulting ELF and binary exectuables will be named demo and demo.bin
-OUTPUT = $(obj)demo
+extra-y = demo
 
 # Source files located in the examples/api directory
 SOBJ_FILES-y += crt0.o
@@ -31,39 +29,25 @@ EXT_COBJ_FILES-y += lib/time.o
 EXT_COBJ_FILES-y += lib/vsprintf.o
 EXT_SOBJ_FILES-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
 
-# Create a list of source files so their dependencies can be auto-generated
-SRCS	+= $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c))
-SRCS	+= $(addprefix $(SRCTREE)/,$(EXT_SOBJ_FILES-y:.o=.S))
-SRCS	+= $(addprefix $(SRCTREE)/examples/api/,$(COBJ_FILES-y:.o=.c))
-SRCS	+= $(addprefix $(SRCTREE)/examples/api/,$(SOBJ_FILES-y:.o=.S))
-
 # Create a list of object files to be compiled
-OBJS	+= $(addprefix $(obj),$(SOBJ_FILES-y))
-OBJS	+= $(addprefix $(obj),$(COBJ_FILES-y))
-OBJS	+= $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y)))
-OBJS	+= $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y)))
-
-all:	$(obj).depend $(OUTPUT)
+OBJS	+= $(addprefix $(obj)/,$(SOBJ_FILES-y))
+OBJS	+= $(addprefix $(obj)/,$(COBJ_FILES-y))
+OBJS	+= $(addprefix $(obj)/,$(notdir $(EXT_COBJ_FILES-y)))
+OBJS	+= $(addprefix $(obj)/,$(notdir $(EXT_SOBJ_FILES-y)))
 
 #########################################################################
 
-$(OUTPUT):	$(OBJS)
+$(obj)/demo:	$(OBJS)
 		$(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $^ $(PLATFORM_LIBS)
-		$(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null
+
+$(obj)/demo.bin: $(obj)/demo
+		$(OBJCOPY) -O binary $< $@ 2>/dev/null
 
 # Rule to build generic library C files
-$(obj)%.o: $(SRCTREE)/lib/%.c
-	$(CC) -g $(CFLAGS) -c -o $@ $<
+$(addprefix $(obj)/,$(notdir $(EXT_COBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/lib/%.c FORCE
+	$(call cmd,force_checksrc)
+	$(call if_changed_rule,cc_o_c)
 
 # Rule to build architecture-specific library assembly files
-$(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
-	$(CC) -g $(CFLAGS) -c -o $@ $<
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+$(addprefix $(obj)/,$(notdir $(EXT_SOBJ_FILES-y))): $(obj)/%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
+	$(call if_changed_dep,as_o_S)
diff --git a/examples/standalone/Makefile b/examples/standalone/Makefile
index 0841c75..47c9d54 100644
--- a/examples/standalone/Makefile
+++ b/examples/standalone/Makefile
@@ -5,31 +5,29 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-ELF-y        := hello_world
-
-ELF-$(CONFIG_SMC91111)           += smc91111_eeprom
-ELF-$(CONFIG_SMC911X)            += smc911x_eeprom
-ELF-$(CONFIG_SPI_FLASH_ATMEL)    += atmel_df_pow2
-ELF-$(CONFIG_MPC5xxx)            += interrupt
-ELF-$(CONFIG_8xx)                += test_burst timer
-ELF-$(CONFIG_8260)               += mem_to_mem_idma2intr
-ELF-$(CONFIG_PPC)                += sched
+extra-y        := hello_world
+extra-$(CONFIG_SMC91111)           += smc91111_eeprom
+extra-$(CONFIG_SMC911X)            += smc911x_eeprom
+extra-$(CONFIG_SPI_FLASH_ATMEL)    += atmel_df_pow2
+extra-$(CONFIG_MPC5xxx)            += interrupt
+extra-$(CONFIG_8xx)                += test_burst timer
+extra-$(CONFIG_8260)               += mem_to_mem_idma2intr
+extra-$(CONFIG_PPC)                += sched
 
 #
 # Some versions of make do not handle trailing white spaces properly;
 # leading to build failures. The problem was found with GNU Make 3.80.
 # Using 'strip' as a workaround for the problem.
 #
-ELF := $(strip $(ELF-y))
+ELF := $(strip $(extra-y))
+
+extra-y += $(addsuffix .srec,$(extra-y)) $(addsuffix .bin,$(extra-y))
+clean-files  := $(extra-) $(addsuffix .srec,$(extra-)) $(addsuffix .bin,$(extra-))
 
-SREC := $(addsuffix .srec,$(ELF))
-BIN  := $(addsuffix .bin,$(ELF))
 
 COBJS	:= $(ELF:=.o)
 
-LIB	= $(obj)libstubs.o
+LIB	= $(obj)/libstubs.o
 
 LIBAOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
 LIBAOBJS-$(CONFIG_8xx) += test_burst_lib.o
@@ -37,13 +35,12 @@ LIBAOBJS := $(LIBAOBJS-y)
 
 LIBCOBJS = stubs.o
 
-LIBOBJS	= $(addprefix $(obj),$(LIBAOBJS) $(LIBCOBJS))
+.SECONDARY: $(call objectify,$(COBJS))
+targets += $(patsubst $(obj)/%,%,$(LIB)) $(COBJS) $(LIBAOBJS) $(LIBCOBJS)
+
+LIBOBJS	= $(addprefix $(obj)/,$(LIBAOBJS) $(LIBCOBJS))
 
-SRCS	:= $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-ELF	:= $(addprefix $(obj),$(ELF))
-BIN	:= $(addprefix $(obj),$(BIN))
-SREC	:= $(addprefix $(obj),$(SREC))
+ELF	:= $(addprefix $(obj)/,$(ELF))
 
 gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
 
@@ -52,42 +49,31 @@ gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
 # also causes the entry point of the standalone application to be
 # inconsistent.
 ifeq ($(ARCH),powerpc)
-AFLAGS := $(filter-out $(RELFLAGS),$(AFLAGS))
-CFLAGS := $(filter-out $(RELFLAGS),$(CFLAGS))
-CPPFLAGS := $(filter-out $(RELFLAGS),$(CPPFLAGS))
+# FIX ME
+CPPFLAGS := $(filter-out $(RELFLAGS), $(CPPFLAGS))
 endif
 
 # We don't want gcc reordering functions if possible.  This ensures that an
 # application's entry point will be the first function in the application's
 # source file.
-CFLAGS_NTR := $(call cc-option,-fno-toplevel-reorder)
-CFLAGS += $(CFLAGS_NTR)
-
-all:	$(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF)
+ccflags-y += $(call cc-option,-fno-toplevel-reorder)
 
 #########################################################################
-$(LIB):	$(obj).depend $(LIBOBJS)
-	$(call cmd_link_o_target, $(LIBOBJS))
+
+quiet_cmd_link_lib = LD      $@
+      cmd_link_lib = $(LD) $(ld_flags) -r -o $@ $(filter $(LIBOBJS), $^)
+
+$(LIB):	$(LIBOBJS) FORCE
+	$(call if_changed,link_lib)
 
 $(ELF):
-$(obj)%:	$(obj)%.o $(LIB)
+$(obj)/%:	$(obj)/%.o $(LIB)
 		$(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
 			-o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
 			-L$(gcclibdir) -lgcc
 
-$(SREC):
-$(obj)%.srec:	$(obj)%
+$(obj)/%.srec:	$(obj)/%
 		$(OBJCOPY) -O srec $< $@ 2>/dev/null
 
-$(BIN):
-$(obj)%.bin:	$(obj)%
+$(obj)/%.bin:	$(obj)/%
 		$(OBJCOPY) -O binary $< $@ 2>/dev/null
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index 735b256..417ce7b 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -174,6 +174,14 @@ int ext4fs_ls(const char *dirname)
 	return 0;
 }
 
+int ext4fs_exists(const char *filename)
+{
+	int file_len;
+
+	file_len = ext4fs_open(filename);
+	return file_len >= 0;
+}
+
 int ext4fs_read(char *buf, unsigned len)
 {
 	if (ext4fs_root == NULL || ext4fs_file == NULL)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index b41d62e..54f42ea 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -808,7 +808,7 @@ __u8 do_fat_read_at_block[MAX_CLUSTSIZE]
 
 long
 do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
-	       unsigned long maxsize, int dols)
+	       unsigned long maxsize, int dols, int dogetsize)
 {
 	char fnamecopy[2048];
 	boot_sector bs;
@@ -1152,7 +1152,10 @@ rootdir_done:
 			subname = nextname;
 	}
 
-	ret = get_contents(mydata, dentptr, pos, buffer, maxsize);
+	if (dogetsize)
+		ret = FAT2CPU32(dentptr->size);
+	else
+		ret = get_contents(mydata, dentptr, pos, buffer, maxsize);
 	debug("Size: %d, got: %ld\n", FAT2CPU32(dentptr->size), ret);
 
 exit:
@@ -1163,7 +1166,7 @@ exit:
 long
 do_fat_read(const char *filename, void *buffer, unsigned long maxsize, int dols)
 {
-	return do_fat_read_at(filename, 0, buffer, maxsize, dols);
+	return do_fat_read_at(filename, 0, buffer, maxsize, dols, 0);
 }
 
 int file_fat_detectfs(void)
@@ -1233,11 +1236,18 @@ int file_fat_ls(const char *dir)
 	return do_fat_read(dir, NULL, 0, LS_YES);
 }
 
+int fat_exists(const char *filename)
+{
+	int sz;
+	sz = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1);
+	return sz >= 0;
+}
+
 long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
 		      unsigned long maxsize)
 {
 	printf("reading %s\n", filename);
-	return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO);
+	return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO, 0);
 }
 
 long file_fat_read(const char *filename, void *buffer, unsigned long maxsize)
diff --git a/fs/fs.c b/fs/fs.c
index be1855d..79d432d 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -41,6 +41,11 @@ static inline int fs_ls_unsupported(const char *dirname)
 	return -1;
 }
 
+static inline int fs_exists_unsupported(const char *filename)
+{
+	return 0;
+}
+
 static inline int fs_read_unsupported(const char *filename, void *buf,
 				      int offset, int len)
 {
@@ -59,9 +64,19 @@ static inline void fs_close_unsupported(void)
 
 struct fstype_info {
 	int fstype;
+	/*
+	 * Is it legal to pass NULL as .probe()'s  fs_dev_desc parameter? This
+	 * should be false in most cases. For "virtual" filesystems which
+	 * aren't based on a U-Boot block device (e.g. sandbox), this can be
+	 * set to true. This should also be true for the dumm entry at the end
+	 * of fstypes[], since that is essentially a "virtual" (non-existent)
+	 * filesystem.
+	 */
+	bool null_dev_desc_ok;
 	int (*probe)(block_dev_desc_t *fs_dev_desc,
 		     disk_partition_t *fs_partition);
 	int (*ls)(const char *dirname);
+	int (*exists)(const char *filename);
 	int (*read)(const char *filename, void *buf, int offset, int len);
 	int (*write)(const char *filename, void *buf, int offset, int len);
 	void (*close)(void);
@@ -71,36 +86,46 @@ static struct fstype_info fstypes[] = {
 #ifdef CONFIG_FS_FAT
 	{
 		.fstype = FS_TYPE_FAT,
+		.null_dev_desc_ok = false,
 		.probe = fat_set_blk_dev,
 		.close = fat_close,
 		.ls = file_fat_ls,
+		.exists = fat_exists,
 		.read = fat_read_file,
+		.write = fs_write_unsupported,
 	},
 #endif
 #ifdef CONFIG_FS_EXT4
 	{
 		.fstype = FS_TYPE_EXT,
+		.null_dev_desc_ok = false,
 		.probe = ext4fs_probe,
 		.close = ext4fs_close,
 		.ls = ext4fs_ls,
+		.exists = ext4fs_exists,
 		.read = ext4_read_file,
+		.write = fs_write_unsupported,
 	},
 #endif
 #ifdef CONFIG_SANDBOX
 	{
 		.fstype = FS_TYPE_SANDBOX,
+		.null_dev_desc_ok = true,
 		.probe = sandbox_fs_set_blk_dev,
 		.close = sandbox_fs_close,
 		.ls = sandbox_fs_ls,
+		.exists = sandbox_fs_exists,
 		.read = fs_read_sandbox,
 		.write = fs_write_sandbox,
 	},
 #endif
 	{
 		.fstype = FS_TYPE_ANY,
+		.null_dev_desc_ok = true,
 		.probe = fs_probe_unsupported,
 		.close = fs_close_unsupported,
 		.ls = fs_ls_unsupported,
+		.exists = fs_exists_unsupported,
 		.read = fs_read_unsupported,
 		.write = fs_write_unsupported,
 	},
@@ -150,6 +175,9 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
 				fstype != info->fstype)
 			continue;
 
+		if (!fs_dev_desc && !info->null_dev_desc_ok)
+			continue;
+
 		if (!info->probe(fs_dev_desc, &fs_partition)) {
 			fs_type = info->fstype;
 			return 0;
@@ -182,6 +210,19 @@ int fs_ls(const char *dirname)
 	return ret;
 }
 
+int fs_exists(const char *filename)
+{
+	int ret;
+
+	struct fstype_info *info = fs_get_info(fs_type);
+
+	ret = info->exists(filename);
+
+	fs_close();
+
+	return ret;
+}
+
 int fs_read(const char *filename, ulong addr, int offset, int len)
 {
 	struct fstype_info *info = fs_get_info(fs_type);
@@ -212,16 +253,11 @@ int fs_write(const char *filename, ulong addr, int offset, int len)
 	void *buf;
 	int ret;
 
-	/*
-	 * We don't actually know how many bytes are being read, since len==0
-	 * means read the whole file.
-	 */
 	buf = map_sysmem(addr, len);
 	ret = info->write(filename, buf, offset, len);
 	unmap_sysmem(buf);
 
-	/* If we requested a specific number of bytes, check we got it */
-	if (ret >= 0 && len && ret != len) {
+	if (ret >= 0 && ret != len) {
 		printf("** Unable to write file %s **\n", filename);
 		ret = -1;
 	}
@@ -312,6 +348,15 @@ int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 	return 0;
 }
 
+int file_exists(const char *dev_type, const char *dev_part, const char *file,
+		int fstype)
+{
+	if (fs_set_blk_dev(dev_type, dev_part, fstype))
+		return 0;
+
+	return fs_exists(file);
+}
+
 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 		int fstype)
 {
diff --git a/fs/sandbox/sandboxfs.c b/fs/sandbox/sandboxfs.c
index dd028da..8507978 100644
--- a/fs/sandbox/sandboxfs.c
+++ b/fs/sandbox/sandboxfs.c
@@ -72,6 +72,14 @@ int sandbox_fs_ls(const char *dirname)
 	return 0;
 }
 
+int sandbox_fs_exists(const char *filename)
+{
+	ssize_t sz;
+
+	sz = os_get_filesize(filename);
+	return sz >= 0;
+}
+
 void sandbox_fs_close(void)
 {
 }
diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile
index 389b0e3..6b1a9a5 100644
--- a/fs/ubifs/Makefile
+++ b/fs/ubifs/Makefile
@@ -15,4 +15,4 @@ obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o
 obj-y += log.o orphan.o recovery.o replay.o
 
 # SEE README.arm-unaligned-accesses
-$(obj)super.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+CFLAGS_super.o := $(PLATFORM_NO_UNALIGNED)
diff --git a/fs/yaffs2/Makefile b/fs/yaffs2/Makefile
index d811287..45ff745 100644
--- a/fs/yaffs2/Makefile
+++ b/fs/yaffs2/Makefile
@@ -24,9 +24,6 @@ obj-y := \
 	yaffs_summary.o yaffs_tagscompat.o yaffs_verify.o yaffs_yaffs1.o \
 	yaffs_yaffs2.o yaffs_mtdif.o yaffs_mtdif2.o
 
-YCFLAGS =  -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM
-YCFLAGS += -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE
-YCFLAGS += -DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES
-
-CFLAGS += $(YCFLAGS)
-CPPFLAGS +=  $(YCFLAGS)
+ccflags-y = -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM \
+		-DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE \
+		-DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES
diff --git a/include/.gitignore b/include/.gitignore
index 7cd3e90..bf142fc 100644
--- a/include/.gitignore
+++ b/include/.gitignore
@@ -1,5 +1,4 @@
 /autoconf.mk*
-/asm
 /bmp_logo.h
 /bmp_logo_data.h
 /config.h
diff --git a/include/common.h b/include/common.h
index ea3e5ed..033b5d9 100644
--- a/include/common.h
+++ b/include/common.h
@@ -302,9 +302,16 @@ int	checkdram     (void);
 int	last_stage_init(void);
 extern ulong monitor_flash_len;
 int mac_read_from_eeprom(void);
-extern u8 _binary_dt_dtb_start[];	/* embedded device tree blob */
+extern u8 __dtb_dt_begin[];	/* embedded device tree blob */
 int set_cpu_clk_info(void);
+#if defined(CONFIG_DISPLAY_CPUINFO)
 int print_cpuinfo(void);
+#else
+static inline int print_cpuinfo(void)
+{
+	return 0;
+}
+#endif
 int update_flash_size(int flash_size);
 
 /**
diff --git a/include/configs/M54418TWR.h b/include/configs/M54418TWR.h
index de063b7..3d7dc1f 100644
--- a/include/configs/M54418TWR.h
+++ b/include/configs/M54418TWR.h
@@ -77,7 +77,6 @@
 #define CONFIG_SYS_MAX_NAND_DEVICE	1
 #define NAND_MAX_CHIPS			CONFIG_SYS_MAX_NAND_DEVICE
 #define CONFIG_SYS_NAND_SELECT_DEVICE
-#define	CONFIG_SYS_64BIT_VSPRINTF	/* needed for nand_util.c */
 #endif
 
 /* Network configuration */
@@ -268,10 +267,8 @@
 /* End of used area in internal SRAM */
 #define CONFIG_SYS_INIT_RAM_SIZE	0x10000
 #define CONFIG_SYS_INIT_RAM_CTRL	0x221
-/* size in bytes reserved for initial data */
-#define CONFIG_SYS_GBL_DATA_SIZE	256
 #define CONFIG_SYS_GBL_DATA_OFFSET	((CONFIG_SYS_INIT_RAM_SIZE - \
-					CONFIG_SYS_GBL_DATA_SIZE) - 32)
+					GENERATED_GBL_DATA_SIZE) - 32)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 #define CONFIG_SYS_SBFHDR_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE - 32)
 
diff --git a/include/configs/MERGERBOX.h b/include/configs/MERGERBOX.h
index 3dcea0b..930699b 100644
--- a/include/configs/MERGERBOX.h
+++ b/include/configs/MERGERBOX.h
@@ -121,9 +121,8 @@
 #define CONFIG_SYS_INIT_RAM_LOCK	1
 #define CONFIG_SYS_INIT_RAM_ADDR	0xE6000000 /* Initial RAM address */
 #define CONFIG_SYS_INIT_RAM_SIZE	0x1000 /* End of used area in RAM */
-#define CONFIG_SYS_GBL_DATA_SIZE	0x100 /* num bytes initial data */
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE -\
-					 CONFIG_SYS_GBL_DATA_SIZE)
+					 GENERATED_GBL_DATA_SIZE)
 
 /*
  * Local Bus Configuration & Clock Setup
diff --git a/include/configs/P1023RDS.h b/include/configs/P1023RDS.h
index b513545..ec72c78 100644
--- a/include/configs/P1023RDS.h
+++ b/include/configs/P1023RDS.h
@@ -194,9 +194,8 @@ extern unsigned long get_clock_freq(void);
 #define CONFIG_SYS_INIT_RAM_ADDR	0xffd00000	/* Initial L1 address */
 #define CONFIG_SYS_INIT_RAM_END	0x00004000	/* End of used area in RAM */
 
-#define CONFIG_SYS_GBL_DATA_SIZE	128	/* num bytes initial data */
 #define CONFIG_SYS_GBL_DATA_OFFSET	\
-	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+	(CONFIG_SYS_INIT_RAM_END - GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 #define CONFIG_SYS_MONITOR_LEN	(256 * 1024) /* Reserve 256 kB for Mon */
diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h
index 75ea125..da6e760 100644
--- a/include/configs/T1040QDS.h
+++ b/include/configs/T1040QDS.h
@@ -669,7 +669,6 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
 #define CONFIG_SYS_MAXARGS	16		/* max number of command args */
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE/* Boot Argument Buffer Size */
-#define CONFIG_SYS_HZ		1000		/* decrementer freq: 1ms ticks*/
 
 /*
  * For booting Linux, the board info and command line data
diff --git a/include/configs/T1040RDB.h b/include/configs/T1040RDB.h
index 7cfda50..fd010c0 100644
--- a/include/configs/T1040RDB.h
+++ b/include/configs/T1040RDB.h
@@ -596,7 +596,6 @@
 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
 #define CONFIG_SYS_MAXARGS	16		/* max number of command args */
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE/* Boot Argument Buffer Size */
-#define CONFIG_SYS_HZ		1000		/* decrementer freq: 1ms ticks*/
 
 /*
  * For booting Linux, the board info and command line data
diff --git a/include/configs/T1042RDB_PI.h b/include/configs/T1042RDB_PI.h
index ed9ca8a..6d07805 100644
--- a/include/configs/T1042RDB_PI.h
+++ b/include/configs/T1042RDB_PI.h
@@ -604,7 +604,6 @@
 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
 #define CONFIG_SYS_MAXARGS	16		/* max number of command args */
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE/* Boot Argument Buffer Size */
-#define CONFIG_SYS_HZ		1000		/* decrementer freq: 1ms ticks*/
 
 /*
  * For booting Linux, the board info and command line data
diff --git a/include/configs/T2080QDS.h b/include/configs/T2080QDS.h
index 9bd0fe2..9448ec8 100644
--- a/include/configs/T2080QDS.h
+++ b/include/configs/T2080QDS.h
@@ -680,7 +680,6 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
 #define CONFIG_SYS_MAXARGS	16	/* max number of command args */
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE/* Boot Argument Buffer Size */
-#define CONFIG_SYS_HZ		1000	/* decrementer freq: 1ms ticks*/
 
 /*
  * For booting Linux, the board info and command line data
diff --git a/include/configs/ac14xx.h b/include/configs/ac14xx.h
index aa584b7..f57820d 100644
--- a/include/configs/ac14xx.h
+++ b/include/configs/ac14xx.h
@@ -289,9 +289,8 @@
 #define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_SRAM_BASE
 #define CONFIG_SYS_INIT_RAM_END		CONFIG_SYS_SRAM_SIZE
 
-#define CONFIG_SYS_GBL_DATA_SIZE	0x100
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_END - \
-					 CONFIG_SYS_GBL_DATA_SIZE)
+					 GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
diff --git a/include/configs/adp-ag101.h b/include/configs/adp-ag101.h
index e31131f..e318c75 100644
--- a/include/configs/adp-ag101.h
+++ b/include/configs/adp-ag101.h
@@ -139,11 +139,6 @@
 #define CONFIG_SYS_MALLOC_LEN		(512 << 10)
 
 /*
- * size in bytes reserved for initial data
- */
-#define CONFIG_SYS_GBL_DATA_SIZE	128
-
-/*
  * AHB Controller configuration
  */
 #define CONFIG_FTAHBC020S
diff --git a/include/configs/adp-ag101p.h b/include/configs/adp-ag101p.h
index ded3f33..24904b0 100644
--- a/include/configs/adp-ag101p.h
+++ b/include/configs/adp-ag101p.h
@@ -139,11 +139,6 @@
 #define CONFIG_SYS_MALLOC_LEN		(512 << 10)
 
 /*
- * size in bytes reserved for initial data
- */
-#define CONFIG_SYS_GBL_DATA_SIZE	128
-
-/*
  * AHB Controller configuration
  */
 #define CONFIG_FTAHBC020S
diff --git a/include/configs/adp-ag102.h b/include/configs/adp-ag102.h
index 1e4ce2e..39f7a3c 100644
--- a/include/configs/adp-ag102.h
+++ b/include/configs/adp-ag102.h
@@ -204,11 +204,6 @@
 #define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 128 * 1024)
 
 /*
- * size in bytes reserved for initial data
-*/
-#define CONFIG_SYS_GBL_DATA_SIZE	128
-
-/*
  * AHB Controller configuration
  */
 #define CONFIG_FTAHBC020S
diff --git a/include/configs/ap_sh4a_4a.h b/include/configs/ap_sh4a_4a.h
index bb39491..4282d70 100644
--- a/include/configs/ap_sh4a_4a.h
+++ b/include/configs/ap_sh4a_4a.h
@@ -134,8 +134,6 @@
 #define CONFIG_SYS_MONITOR_LEN	(256 * 1024)
 /* Size of DRAM reserved for malloc() use */
 #define CONFIG_SYS_MALLOC_LEN	(256 * 1024)
-/* size in bytes reserved for initial data */
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ	(8 * 1024 * 1024)
 
 /* ENV setting */
diff --git a/include/configs/apf27.h b/include/configs/apf27.h
index 1193013..b10c48c 100644
--- a/include/configs/apf27.h
+++ b/include/configs/apf27.h
@@ -356,11 +356,6 @@
 #endif /* CONFIG_CMD_DATE */
 
 /*
- * Clocks
- */
-#define	CONFIG_SYS_HZ			1000	/* Ticks per second */
-
-/*
  * PLL
  *
  *  31 | x  |x| x x x x |x x x x x x x x x x |x x|x x x x|x x x x x x x x x x| 0
diff --git a/include/configs/armadillo-800eva.h b/include/configs/armadillo-800eva.h
index e5569c7..17a2da0 100644
--- a/include/configs/armadillo-800eva.h
+++ b/include/configs/armadillo-800eva.h
@@ -94,7 +94,6 @@
 #define CONFIG_SYS_MONITOR_BASE		0x00000000
 #define CONFIG_SYS_MONITOR_LEN		(256 * 1024)
 #define CONFIG_SYS_MALLOC_LEN		(1 * 1024 * 1024)
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ		(8 * 1024 * 1024)
 #define CONFIG_SYS_TEXT_BASE	0xE80C0000
 
diff --git a/include/configs/balloon3.h b/include/configs/balloon3.h
index b41a823..5228ba6 100644
--- a/include/configs/balloon3.h
+++ b/include/configs/balloon3.h
@@ -84,7 +84,6 @@
  * Clock Configuration
  */
 #undef	CONFIG_SYS_CLKS_IN_HZ
-#define	CONFIG_SYS_HZ			1000
 #define	CONFIG_SYS_CPUSPEED		0x290		/* 520MHz */
 
 /*
diff --git a/include/configs/corvus.h b/include/configs/corvus.h
index 11ba4cf..959e188 100644
--- a/include/configs/corvus.h
+++ b/include/configs/corvus.h
@@ -33,7 +33,6 @@
 /* ARM asynchronous clock */
 #define CONFIG_SYS_AT91_SLOW_CLOCK      32768
 #define CONFIG_SYS_AT91_MAIN_CLOCK      12000000 /* from 12 MHz crystal */
-#define CONFIG_SYS_HZ		        1000
 
 #define CONFIG_AT91FAMILY
 
diff --git a/include/configs/devkit3250.h b/include/configs/devkit3250.h
index bcb21fe..3d39b10 100644
--- a/include/configs/devkit3250.h
+++ b/include/configs/devkit3250.h
@@ -29,7 +29,6 @@
  */
 #define CONFIG_NR_DRAM_BANKS		1
 #define CONFIG_SYS_MALLOC_LEN		SZ_1M
-#define CONFIG_SYS_GBL_DATA_SIZE	128
 #define CONFIG_SYS_SDRAM_BASE		EMC_DYCS0_BASE
 #define CONFIG_SYS_SDRAM_SIZE		SZ_64M
 #define CONFIG_SYS_TEXT_BASE		0x83FA0000
diff --git a/include/configs/dlvision-10g.h b/include/configs/dlvision-10g.h
index 31fc65d..7877897 100644
--- a/include/configs/dlvision-10g.h
+++ b/include/configs/dlvision-10g.h
@@ -217,9 +217,8 @@
 #define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_OCM_DATA_ADDR /* in SDRAM */
 #define CONFIG_SYS_INIT_RAM_END	CONFIG_SYS_OCM_DATA_SIZE /* End of used area */
 
-#define CONFIG_SYS_GBL_DATA_SIZE	128  /* size/bytes res'd for init data*/
 #define CONFIG_SYS_GBL_DATA_OFFSET \
-	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+	(CONFIG_SYS_INIT_RAM_END - GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 /*
diff --git a/include/configs/ecovec.h b/include/configs/ecovec.h
index 3a5cc74..e26591c 100644
--- a/include/configs/ecovec.h
+++ b/include/configs/ecovec.h
@@ -158,8 +158,6 @@
 #define CONFIG_SYS_MONITOR_LEN	(256 * 1024)
 /* Size of DRAM reserved for malloc() use */
 #define CONFIG_SYS_MALLOC_LEN	(256 * 1024)
-/* size in bytes reserved for initial data */
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ	(8 * 1024 * 1024)
 
 /* ENV setting */
diff --git a/include/configs/hummingboard.h b/include/configs/hummingboard.h
index ac65620..6bf3408 100644
--- a/include/configs/hummingboard.h
+++ b/include/configs/hummingboard.h
@@ -190,7 +190,6 @@
 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
 
 #define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
-#define CONFIG_SYS_HZ			1000
 
 #define CONFIG_CMDLINE_EDITING
 
diff --git a/include/configs/io.h b/include/configs/io.h
index 7f86767..9da6cc6 100644
--- a/include/configs/io.h
+++ b/include/configs/io.h
@@ -198,9 +198,8 @@
 #define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_OCM_DATA_ADDR /* in SDRAM */
 #define CONFIG_SYS_INIT_RAM_END	CONFIG_SYS_OCM_DATA_SIZE /* End of used area */
 
-#define CONFIG_SYS_GBL_DATA_SIZE	128  /* size/bytes res'd for init data*/
 #define CONFIG_SYS_GBL_DATA_OFFSET \
-	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+	(CONFIG_SYS_INIT_RAM_END - GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 /*
diff --git a/include/configs/iocon.h b/include/configs/iocon.h
index d34b91d..f36c2a3 100644
--- a/include/configs/iocon.h
+++ b/include/configs/iocon.h
@@ -238,9 +238,8 @@ int fpga_gpio_get(unsigned int bus, int pin);
 #define CONFIG_SYS_INIT_RAM_ADDR	CONFIG_SYS_OCM_DATA_ADDR /* in SDRAM */
 #define CONFIG_SYS_INIT_RAM_END	CONFIG_SYS_OCM_DATA_SIZE /* End of used area */
 
-#define CONFIG_SYS_GBL_DATA_SIZE	128  /* size/bytes res'd for init data*/
 #define CONFIG_SYS_GBL_DATA_OFFSET \
-	(CONFIG_SYS_INIT_RAM_END - CONFIG_SYS_GBL_DATA_SIZE)
+	(CONFIG_SYS_INIT_RAM_END - GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 /*
diff --git a/include/configs/km/km83xx-common.h b/include/configs/km/km83xx-common.h
index 5e075c8..ae6b6dc 100644
--- a/include/configs/km/km83xx-common.h
+++ b/include/configs/km/km83xx-common.h
@@ -84,7 +84,6 @@
 #define CONFIG_SYS_INIT_RAM_LOCK
 #define CONFIG_SYS_INIT_RAM_ADDR	0xE6000000 /* Initial RAM address */
 #define CONFIG_SYS_INIT_RAM_SIZE	0x1000 /* End of used area in RAM */
-#define CONFIG_SYS_GBL_DATA_SIZE	0x100 /* num bytes initial data */
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE - \
 						GENERATED_GBL_DATA_SIZE)
 
diff --git a/include/configs/koelsch.h b/include/configs/koelsch.h
index cc3c7a8..90e2d7a 100644
--- a/include/configs/koelsch.h
+++ b/include/configs/koelsch.h
@@ -106,7 +106,6 @@
 #define CONFIG_SYS_MONITOR_BASE		0x00000000
 #define CONFIG_SYS_MONITOR_LEN		(256 * 1024)
 #define CONFIG_SYS_MALLOC_LEN		(1 * 1024 * 1024)
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ		(8 * 1024 * 1024)
 
 /* FLASH */
@@ -171,7 +170,6 @@
 #define CONFIG_SH_TMU_CLK_FREQ	CONFIG_SYS_CLK_FREQ
 #define CONFIG_SH_SCIF_CLK_FREQ	14745600
 #define CONFIG_SYS_TMU_CLK_DIV	4
-#define CONFIG_SYS_HZ		1000
 
 /* i2c */
 #define CONFIG_CMD_I2C
diff --git a/include/configs/kzm9g.h b/include/configs/kzm9g.h
index f183279..4d11c7d 100644
--- a/include/configs/kzm9g.h
+++ b/include/configs/kzm9g.h
@@ -88,7 +88,6 @@
 
 #define CONFIG_SYS_MONITOR_BASE	(KZM_FLASH_BASE)
 #define CONFIG_SYS_MALLOC_LEN	(CONFIG_ENV_SIZE + 128 * 1024)
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ	(8 * 1024 * 1024)
 
 #define CONFIG_SYS_TEXT_BASE		0x00000000
diff --git a/include/configs/lager.h b/include/configs/lager.h
index b6c1954..b420e45 100644
--- a/include/configs/lager.h
+++ b/include/configs/lager.h
@@ -109,7 +109,6 @@
 #define CONFIG_SYS_MONITOR_BASE		0x00000000
 #define CONFIG_SYS_MONITOR_LEN		(256 * 1024)
 #define CONFIG_SYS_MALLOC_LEN		(1 * 1024 * 1024)
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ		(8 * 1024 * 1024)
 
 #if defined(CONFIG_SYS_USE_BOOT_NORFLASH)
@@ -196,6 +195,5 @@
 #define CONFIG_SH_SCIF_CLK_FREQ	CONFIG_MP_CLK_FREQ
 
 #define CONFIG_SYS_TMU_CLK_DIV	4
-#define CONFIG_SYS_HZ		1000
 
 #endif	/* __LAGER_H */
diff --git a/include/configs/mini2440.h b/include/configs/mini2440.h
deleted file mode 100644
index 5e9e98d..0000000
--- a/include/configs/mini2440.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- * Gary Jennejohn <gj@denx.de>
- * David Mueller <d.mueller@elsoft.ch>
- *
- * (C) Copyright 2009-2010
- * Michel Pollet <buserror@gmail.com>
- *
- * (C) Copyright 2012
- * Gabriel Huau <contact@huau-gabriel.fr>
- *
- * Configuation settings for the MINI2440 board.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#ifndef __CONFIG_H
-#define __CONFIG_H
-
-#define CONFIG_SYS_TEXT_BASE 0x0
-#define CONFIG_S3C2440_GPIO
-
-/*
- * High Level Configuration Options
- */
-#define CONFIG_ARM920T			/* This is an ARM920T Core	*/
-#define CONFIG_S3C24X0			/* in a SAMSUNG S3C24X0 SoC */
-#define CONFIG_S3C2440			/* in a SAMSUNG S3C2440 SoC */
-#define CONFIG_MINI2440			/* on a MIN2440 Board       */
-
-#define MACH_TYPE_MINI2440	1999
-#define CONFIG_MACH_TYPE	MACH_TYPE_MINI2440
-
-/*
- * We don't use lowlevel_init
- */
-#define CONFIG_SKIP_LOWLEVEL_INIT
-#define CONFIG_BOARD_EARLY_INIT_F
-
-/*
- * input clock of PLL
- */
-/* MINI2440 has 12.0000MHz input clock */
-#define CONFIG_SYS_CLK_FREQ	12000000
-
-/*
- * Size of malloc() pool
- */
-#define CONFIG_SYS_MALLOC_LEN	(CONFIG_ENV_SIZE + 2048*1024)
-
-/*
- * Hardware drivers
- */
-#define CONFIG_DRIVER_DM9000
-#define CONFIG_DRIVER_DM9000_NO_EEPROM
-#define CONFIG_DM9000_BASE				0x20000300
-#define DM9000_IO		CONFIG_DM9000_BASE
-#define DM9000_DATA		(CONFIG_DM9000_BASE+4)
-
-/*
- * select serial console configuration
- */
-#define CONFIG_S3C24X0_SERIAL
-#define CONFIG_SERIAL1
-
-/*
- * allow to overwrite serial and ethaddr
- */
-#define CONFIG_ENV_OVERWRITE
-
-/*
- * Command definition
- */
-#include <config_cmd_default.h>
-
-#define CONFIG_CMD_DHCP
-#define CONFIG_CMD_PORTIO
-#define CONFIG_CMD_REGINFO
-#define CONFIG_CMD_SAVES
-
-/*
- * Miscellaneous configurable options
- */
-#define CONFIG_LONGHELP
-#define CONFIG_SYS_PROMPT	"MINI2440 => "
-#define CONFIG_SYS_CBSIZE	256
-#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
-#define CONFIG_SYS_MAXARGS	32
-#define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
-
-#define CONFIG_SYS_MEMTEST_START	0x30000000
-#define CONFIG_SYS_MEMTEST_END		0x34000000	/* 64MB in DRAM	*/
-
-/* default load address	*/
-#define CONFIG_SYS_LOAD_ADDR		0x32000000
-
-/* boot parameters address */
-#define CONFIG_BOOT_PARAM_ADDR		0x30000100
-
-/*
- * the PWM TImer 4 uses a counter of 15625 for 10 ms, so we need
- * it to wrap 100 times (total 1562500) to get 1 sec.
- */
-#define CONFIG_SYS_HZ			1562500
-
-/*
- * valid baudrates
- */
-#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
-#define CONFIG_BAUDRATE		115200
-
-/*
- * Stack sizes
- * The stack sizes are set up in start.S using the settings below
- */
-#define CONFIG_STACKSIZE	(128*1024)	/* regular stack */
-#ifdef CONFIG_USE_IRQ
-#define CONFIG_STACKSIZE_IRQ	(8*1024)	/* IRQ stack */
-#define CONFIG_STACKSIZE_FIQ	(4*1024)	/* FIQ stack */
-#endif
-
-/*
- * Physical Memory Map
- */
-#define CONFIG_NR_DRAM_BANKS        1          /* we have 1 bank of DRAM */
-#define PHYS_SDRAM_SIZE             (64*1024*1024) /* 64MB of DRAM */
-#define CONFIG_SYS_SDRAM_BASE       0x30000000
-#define CONFIG_SYS_FLASH_BASE		0x0
-
-/*
- * Stack should be on the SRAM because
- * DRAM is not init
- */
-#define CONFIG_SYS_INIT_SP_ADDR		(0x40001000 - GENERATED_GBL_DATA_SIZE)
-
-/*
- * NOR FLASH organization
- * Now uses the standard CFI interface
- * FLASH and environment organization
- */
-#define CONFIG_SYS_FLASH_CFI
-#define CONFIG_FLASH_CFI_DRIVER
-#define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_16BIT
-#define CONFIG_SYS_MONITOR_BASE		0x0
-/* max number of memory banks */
-#define CONFIG_SYS_MAX_FLASH_BANKS	1
-/* 512 * 4096 sectors, or 32 * 64k blocks */
-#define CONFIG_SYS_MAX_FLASH_SECT	512
-#define CONFIG_FLASH_SHOW_PROGRESS  1
-
-/*
- * Config for NOR flash
- */
-#define CONFIG_ENV_IS_IN_FLASH
-#define CONFIG_MY_ENV_OFFSET	0x40000
-/* addr of environment */
-#define CONFIG_ENV_ADDR		(CONFIG_SYS_FLASH_BASE + CONFIG_MY_ENV_OFFSET)
-/* 16k Total Size of Environment Sector */
-#define CONFIG_ENV_SIZE		0x4000
-
-/* ATAG configuration */
-#define CONFIG_INITRD_TAG
-#define CONFIG_SETUP_MEMORY_TAGS
-#define CONFIG_CMDLINE_TAG
-#define CONFIG_CMDLINE_EDITING
-#define CONFIG_AUTO_COMPLETE
-
-#endif	/* __CONFIG_H */
diff --git a/include/configs/mxs.h b/include/configs/mxs.h
index 363b277..55ecef9 100644
--- a/include/configs/mxs.h
+++ b/include/configs/mxs.h
@@ -59,7 +59,6 @@
 
 /* Memory sizes */
 #define CONFIG_SYS_MALLOC_LEN		0x00400000	/* 4 MB for malloc */
-#define CONFIG_SYS_GBL_DATA_SIZE	128		/* Initial data */
 #define CONFIG_SYS_MEMTEST_START	0x40000000	/* Memtest start adr */
 #define CONFIG_SYS_MEMTEST_END		0x40400000	/* 4 MB RAM test */
 
diff --git a/include/configs/o2dnt-common.h b/include/configs/o2dnt-common.h
index 18714ea..133dc6f 100644
--- a/include/configs/o2dnt-common.h
+++ b/include/configs/o2dnt-common.h
@@ -275,10 +275,8 @@
 #define CONFIG_SYS_INIT_RAM_END		MPC5XXX_SRAM_SIZE
 #endif
 
-/* size in bytes reserved for initial data */
-#define CONFIG_SYS_GBL_DATA_SIZE	128
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_END - \
-					 CONFIG_SYS_GBL_DATA_SIZE)
+					 GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
diff --git a/include/configs/p1_twr.h b/include/configs/p1_twr.h
index 601bac7..c296a07 100644
--- a/include/configs/p1_twr.h
+++ b/include/configs/p1_twr.h
@@ -238,9 +238,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_OF_BOARD_SETUP
 #define CONFIG_OF_STDOUT_VIA_ALIAS
 
-#define CONFIG_SYS_64BIT_VSPRINTF
-#define CONFIG_SYS_64BIT_STRTOUL
-
 /* new uImage format support */
 #define CONFIG_FIT
 #define CONFIG_FIT_VERBOSE	/* enable fit_format_{error,warning}() */
diff --git a/include/configs/palmld.h b/include/configs/palmld.h
index 2a9fd22..9480d8d 100644
--- a/include/configs/palmld.h
+++ b/include/configs/palmld.h
@@ -115,7 +115,6 @@
  * Clock Configuration
  */
 #undef	CONFIG_SYS_CLKS_IN_HZ
-#define	CONFIG_SYS_HZ			1000
 #define	CONFIG_SYS_CPUSPEED		0x210		/* 416MHz ; N=2,L=16 */
 
 /*
diff --git a/include/configs/palmtc.h b/include/configs/palmtc.h
index de25407..8abce1b 100644
--- a/include/configs/palmtc.h
+++ b/include/configs/palmtc.h
@@ -117,7 +117,6 @@
  * Clock Configuration
  */
 #undef	CONFIG_SYS_CLKS_IN_HZ
-#define	CONFIG_SYS_HZ			1000
 #define	CONFIG_SYS_CPUSPEED		0x161		/* 400MHz;L=1 M=3 T=1 */
 
 /*
diff --git a/include/configs/r0p7734.h b/include/configs/r0p7734.h
index 53128ec..a71709b 100644
--- a/include/configs/r0p7734.h
+++ b/include/configs/r0p7734.h
@@ -140,8 +140,6 @@
 #define CONFIG_SYS_MONITOR_LEN	(256 * 1024)
 /* Size of DRAM reserved for malloc() use */
 #define CONFIG_SYS_MALLOC_LEN	(256 * 1024)
-/* size in bytes reserved for initial data */
-#define CONFIG_SYS_GBL_DATA_SIZE	(256)
 #define CONFIG_SYS_BOOTMAPSZ	(8 * 1024 * 1024)
 
 /* ENV setting */
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index a6d5582..e77d06b 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -42,6 +42,7 @@
 #define CONFIG_CMD_PART
 #define CONFIG_DOS_PARTITION
 #define CONFIG_HOST_MAX_DEVICES 4
+#define CONFIG_CMD_FS_GENERIC
 
 #define CONFIG_SYS_VSNPRINTF
 
diff --git a/include/configs/scb9328.h b/include/configs/scb9328.h
index c0048ac..e6d272d 100644
--- a/include/configs/scb9328.h
+++ b/include/configs/scb9328.h
@@ -69,7 +69,6 @@
 #define CONFIG_SYS_MEMTEST_START	0x08100000	      /* memtest test area   */
 #define CONFIG_SYS_MEMTEST_END		0x08F00000
 
-#define CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x141	     /* core clock - register value  */
 
 #define CONFIG_BAUDRATE 115200
diff --git a/include/configs/shmin.h b/include/configs/shmin.h
index f8155ef..4d38f6c 100644
--- a/include/configs/shmin.h
+++ b/include/configs/shmin.h
@@ -62,7 +62,6 @@
 #define CONFIG_SYS_MONITOR_BASE		(SHMIN_FLASH_BASE_1 + CONFIG_ENV_SECT_SIZE)
 #define CONFIG_SYS_MONITOR_LEN		(128 * 1024)
 #define CONFIG_SYS_MALLOC_LEN		(256 * 1024)
-#define CONFIG_SYS_GBL_DATA_SIZE	256
 #define CONFIG_SYS_BOOTMAPSZ		(8 * 1024 * 1024)
 
 /* FLASH */
diff --git a/include/configs/snowball.h b/include/configs/snowball.h
index 9a069f3..dacb560 100644
--- a/include/configs/snowball.h
+++ b/include/configs/snowball.h
@@ -41,8 +41,6 @@
 #define CONFIG_ENV_SIZE		(8*1024)
 #define CONFIG_SYS_MALLOC_LEN	(CONFIG_ENV_SIZE + 256*1024)
 
-#define CONFIG_SYS_GBL_DATA_SIZE	128	/* for initial data */
-
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_CMD_ENV
 #define CONFIG_CMD_SAVEENV
diff --git a/include/configs/taurus.h b/include/configs/taurus.h
index c980023..20d4cee 100644
--- a/include/configs/taurus.h
+++ b/include/configs/taurus.h
@@ -37,7 +37,6 @@
 /* ARM asynchronous clock */
 #define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock xtal */
 #define CONFIG_SYS_AT91_MAIN_CLOCK	18432000	/* main clock xtal */
-#define CONFIG_SYS_HZ			1000
 
 /* Misc CPU related */
 #define CONFIG_ARCH_CPU_INIT
diff --git a/include/configs/u8500_href.h b/include/configs/u8500_href.h
index 629299d..8d7970a 100644
--- a/include/configs/u8500_href.h
+++ b/include/configs/u8500_href.h
@@ -29,7 +29,6 @@
 #define CONFIG_ENV_SIZE		(128*1024)
 #define CONFIG_SYS_MALLOC_LEN	(CONFIG_ENV_SIZE + 256*1024)
 #endif
-#define CONFIG_SYS_GBL_DATA_SIZE	128	/* for initial data */
 
 /*
  * PL011 Configuration
diff --git a/include/configs/udoo.h b/include/configs/udoo.h
index 7f09489..4f51852 100644
--- a/include/configs/udoo.h
+++ b/include/configs/udoo.h
@@ -199,7 +199,6 @@
 #define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
 
 #define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
-#define CONFIG_SYS_HZ			1000
 
 #define CONFIG_CMDLINE_EDITING
 
diff --git a/include/configs/usb_a9263.h b/include/configs/usb_a9263.h
index c4d04de..3c54870 100644
--- a/include/configs/usb_a9263.h
+++ b/include/configs/usb_a9263.h
@@ -20,7 +20,6 @@
 /* ARM asynchronous clock */
 #define CONFIG_SYS_AT91_MAIN_CLOCK	12000000	/* 12 MHz crystal */
 #define CONFIG_SYS_AT91_SLOW_CLOCK	32768
-#define CONFIG_SYS_HZ			1000
 
 #define CONFIG_MACH_TYPE		MACH_TYPE_USB_A9263
 
diff --git a/include/configs/vl_ma2sc.h b/include/configs/vl_ma2sc.h
index 88aaa95..14c6e67 100644
--- a/include/configs/vl_ma2sc.h
+++ b/include/configs/vl_ma2sc.h
@@ -322,7 +322,6 @@
 #define CONFIG_SYS_NAND_MASK_CLE	(1 << 22)	/* our CLE is AD22 */
 #define CONFIG_SYS_NAND_ENABLE_PIN	GPIO_PIN_PD(15)
 #define CONFIG_SYS_NAND_READY_PIN	GPIO_PIN_PB(0)
-#define CONFIG_SYS_64BIT_VSPRINTF	/* needed for nand_util.c */
 #endif
 
 /* Ethernet */
@@ -363,7 +362,6 @@
  */
 #define CONFIG_SYS_MALLOC_LEN		\
 	ROUND(3 * CONFIG_ENV_SIZE + 128 * 1024, 0x1000)
-#define CONFIG_SYS_GBL_DATA_SIZE	128	/* 128 bytes for initial data */
 
 #ifndef CONFIG_RAMLOAD
 #define CONFIG_BOOTCOMMAND		"run nfsboot"
diff --git a/include/configs/x600.h b/include/configs/x600.h
index 00b938a..d420efe 100644
--- a/include/configs/x600.h
+++ b/include/configs/x600.h
@@ -170,7 +170,6 @@
 #define CONFIG_SYS_BARGSIZE			CONFIG_SYS_CBSIZE
 #define CONFIG_SYS_LOAD_ADDR			0x00800000
 #define CONFIG_SYS_CONSOLE_INFO_QUIET
-#define CONFIG_SYS_64BIT_VSPRINTF
 
 /* Use last 2 lwords in internal SRAM for bootcounter */
 #define CONFIG_BOOTCOUNT_LIMIT
diff --git a/include/configs/zipitz2.h b/include/configs/zipitz2.h
index e38fa89..41a7c99 100644
--- a/include/configs/zipitz2.h
+++ b/include/configs/zipitz2.h
@@ -138,7 +138,6 @@ unsigned char zipitz2_spi_read(void);
  * Clock Configuration
  */
 #undef	CONFIG_SYS_CLKS_IN_HZ
-#define	CONFIG_SYS_HZ			1000
 #define CONFIG_SYS_CPUSPEED		0x190		/* standard setting for 312MHz; L=16, N=1.5, A=0, SDCLK!=SystemBus */
 
 /*
diff --git a/include/ext4fs.h b/include/ext4fs.h
index 2429380..aacb147 100644
--- a/include/ext4fs.h
+++ b/include/ext4fs.h
@@ -134,6 +134,7 @@ int ext4fs_read(char *buf, unsigned len);
 int ext4fs_mount(unsigned part_length);
 void ext4fs_close(void);
 int ext4fs_ls(const char *dirname);
+int ext4fs_exists(const char *filename);
 void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot);
 int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf);
 void ext4fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
diff --git a/include/fat.h b/include/fat.h
index 2c951e7..c8eb7cc 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -188,6 +188,7 @@ file_read_func		file_fat_read;
 int file_cd(const char *path);
 int file_fat_detectfs(void);
 int file_fat_ls(const char *dir);
+int fat_exists(const char *filename);
 long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
 		      unsigned long maxsize);
 long file_fat_read(const char *filename, void *buffer, unsigned long maxsize);
diff --git a/include/fs.h b/include/fs.h
index 7d9403e..26de053 100644
--- a/include/fs.h
+++ b/include/fs.h
@@ -44,6 +44,13 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype);
 int fs_ls(const char *dirname);
 
 /*
+ * Determine whether a file exists
+ *
+ * Returns 1 if the file exists, 0 if it doesn't exist.
+ */
+int fs_exists(const char *filename);
+
+/*
  * Read file "filename" from the partition previously set by fs_set_blk_dev(),
  * to address "addr", starting at byte offset "offset", and reading "len"
  * bytes. "offset" may be 0 to read from the start of the file. "len" may be
@@ -55,6 +62,16 @@ int fs_ls(const char *dirname);
 int fs_read(const char *filename, ulong addr, int offset, int len);
 
 /*
+ * Write file "filename" to the partition previously set by fs_set_blk_dev(),
+ * from address "addr", starting at byte offset "offset", and writing "len"
+ * bytes. "offset" may be 0 to write to the start of the file. Note that not
+ * all filesystem types support offset!=0.
+ *
+ * Returns number of bytes read on success. Returns <= 0 on error.
+ */
+int fs_write(const char *filename, ulong addr, int offset, int len);
+
+/*
  * Common implementation for various filesystem commands, optionally limited
  * to a specific filesystem type via the fstype parameter.
  */
@@ -62,6 +79,8 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 		int fstype);
 int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 		int fstype);
+int file_exists(const char *dev_type, const char *dev_part, const char *file,
+		int fstype);
 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 		int fstype);
 
diff --git a/include/image.h b/include/image.h
index 3ba8c2e..6afd57b 100644
--- a/include/image.h
+++ b/include/image.h
@@ -99,9 +99,9 @@ struct lmb;
 #endif
 
 #ifdef CONFIG_OF_BOARD_SETUP
-# define IMAAGE_OF_BOARD_SETUP		1
+# define IMAGE_OF_BOARD_SETUP		1
 #else
-# define IMAAGE_OF_BOARD_SETUP		0
+# define IMAGE_OF_BOARD_SETUP		0
 #endif
 
 /*
diff --git a/include/linker_lists.h b/include/linker_lists.h
index 1eebb95..997d149 100644
--- a/include/linker_lists.h
+++ b/include/linker_lists.h
@@ -8,6 +8,9 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
+#ifndef __LINKER_LISTS_H__
+#define __LINKER_LISTS_H__
+
 /*
  * There is no use in including this from ASM files, but that happens
  * anyway, e.g. PPC kgdb.S includes command.h which incluse us.
@@ -97,9 +100,6 @@
  *   %u_boot_list_2_drivers_3
  */
 
-#ifndef __LINKER_LISTS_H__
-#define __LINKER_LISTS_H__
-
 /**
  * ll_entry_declare() - Declare linker-generated array entry
  * @_type:	Data type of the entry
diff --git a/include/sandboxfs.h b/include/sandboxfs.h
index 8ea8cb7..a51ad13 100644
--- a/include/sandboxfs.h
+++ b/include/sandboxfs.h
@@ -25,6 +25,7 @@ long sandbox_fs_read_at(const char *filename, unsigned long pos,
 
 void sandbox_fs_close(void);
 int sandbox_fs_ls(const char *dirname);
+int sandbox_fs_exists(const char *filename);
 int fs_read_sandbox(const char *filename, void *buf, int offset, int len);
 int fs_write_sandbox(const char *filename, void *buf, int offset, int len);
 
diff --git a/include/spl.h b/include/spl.h
index dad00c0..a7e41da 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -65,6 +65,9 @@ void spl_net_load_image(const char *device);
 /* USB SPL functions */
 void spl_usb_load_image(void);
 
+/* SATA SPL functions */
+void spl_sata_load_image(void);
+
 /* SPL FAT image functions */
 int spl_load_image_fat(block_dev_desc_t *block_dev, int partition, const char *filename);
 int spl_load_image_fat_os(block_dev_desc_t *block_dev, int partition);
diff --git a/lib/Makefile b/lib/Makefile
index 760340f..8c483c9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -67,4 +67,4 @@ obj-$(CONFIG_BOOTP_RANDOM_DELAY) += rand.o
 obj-$(CONFIG_CMD_LINK_LOCAL) += rand.o
 
 # SEE README.arm-unaligned-accesses
-$(obj)bzlib.o: CFLAGS += $(PLATFORM_NO_UNALIGNED)
+CFLAGS_bzlib.o := $(PLATFORM_NO_UNALIGNED)
diff --git a/lib/lzma/Makefile b/lib/lzma/Makefile
index f8eda06..b6c8067 100644
--- a/lib/lzma/Makefile
+++ b/lib/lzma/Makefile
@@ -8,6 +8,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CFLAGS += -D_LZMA_PROB32
+ccflags-y += -D_LZMA_PROB32
 
 obj-y += LzmaDec.o LzmaTools.o
diff --git a/mkconfig b/mkconfig
index b96c81f..5f516f2 100755
--- a/mkconfig
+++ b/mkconfig
@@ -23,7 +23,7 @@ options=""
 
 if [ \( $# -eq 2 \) -a \( "$1" = "-A" \) ] ; then
 	# Automatic mode
-	line=`awk '($0 !~ /^#/ && $7 ~ /^'"$2"'$/) { print $1, $2, $3, $4, $5, $6, $7, $8 }' boards.cfg`
+	line=`awk '($0 !~ /^#/ && $7 ~ /^'"$2"'$/) { print $1, $2, $3, $4, $5, $6, $7, $8 }' $srctree/boards.cfg`
 	if [ -z "$line" ] ; then
 		echo "make: *** No rule to make target \`$2_config'.  Stop." >&2
 		exit 1
diff --git a/nand_spl/board/amcc/acadia/Makefile b/nand_spl/board/amcc/acadia/Makefile
index 022a205..d256abf 100644
--- a/nand_spl/board/amcc/acadia/Makefile
+++ b/nand_spl/board/amcc/acadia/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -13,17 +12,18 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o cache.o
 COBJS	= gpio.o nand_boot.o nand_ecc.o memory.o ndfc.o pll.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin \
 	$(nandobj)System.map
 
@@ -43,61 +43,46 @@ $(nandobj)System.map:	$(nandobj)u-boot-spl
 		sort > $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)cache.S:
+$(obj)/cache.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/cache.S $@
 
-$(obj)gpio.c:
+$(obj)/gpio.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/gpio.c $@
 
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)memory.c:
+$(obj)/memory.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/acadia/memory.c $@
 
-$(obj)pll.c:
+$(obj)/pll.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/acadia/pll.c $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/bamboo/Makefile b/nand_spl/board/amcc/bamboo/Makefile
index d413a48..4f36d6c 100644
--- a/nand_spl/board/amcc/bamboo/Makefile
+++ b/nand_spl/board/amcc/bamboo/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -13,17 +12,18 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o init.o resetvec.o
 COBJS	= nand_boot.o nand_ecc.o ndfc.o sdram.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -37,55 +37,34 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)init.S:
+$(obj)/init.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/bamboo/init.S $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)sdram.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/sdram.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/canyonlands/Makefile b/nand_spl/board/amcc/canyonlands/Makefile
index b2ef03f..5c9c8e8 100644
--- a/nand_spl/board/amcc/canyonlands/Makefile
+++ b/nand_spl/board/amcc/canyonlands/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -13,8 +12,8 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	:= start.o
 SOBJS	+= init.o
@@ -24,11 +23,12 @@ COBJS	+= nand_boot.o
 COBJS	+= nand_ecc.o
 COBJS	+= ndfc.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -42,55 +42,34 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)init.S:
+$(obj)/init.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/canyonlands/init.S $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)ddr2_fixed.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/ddr2_fixed.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/kilauea/Makefile b/nand_spl/board/amcc/kilauea/Makefile
index 5899b9e..cfe3082 100644
--- a/nand_spl/board/amcc/kilauea/Makefile
+++ b/nand_spl/board/amcc/kilauea/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -13,17 +12,18 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o cache.o
 COBJS	= 44x_spd_ddr2.o nand_boot.o nand_ecc.o ndfc.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -37,56 +37,41 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)44x_spd_ddr2.c: $(obj)ecc.h
+$(obj)/44x_spd_ddr2.c: $(obj)/ecc.h
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c $@
 
-$(obj)cache.S:
+$(obj)/cache.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/cache.S $@
 
-$(obj)ecc.h:
+$(obj)/ecc.h:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/ecc.h $@
 
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/sequoia/Makefile b/nand_spl/board/amcc/sequoia/Makefile
index fea6c4e..de02886 100644
--- a/nand_spl/board/amcc/sequoia/Makefile
+++ b/nand_spl/board/amcc/sequoia/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -13,17 +12,18 @@ nandobj	:= $(OBJTREE)/nand_spl/
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
 	   $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o init.o resetvec.o
 COBJS	= denali_data_eye.o nand_boot.o nand_ecc.o ndfc.o sdram.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -37,59 +37,44 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
 # from cpu directory
-$(obj)denali_data_eye.c:
+$(obj)/denali_data_eye.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/denali_data_eye.c $@
 
-$(obj)ndfc.c:
+$(obj)/ndfc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/ndfc.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/resetvec.S $@
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/ppc4xx/start.S $@
 
 # from board directory
-$(obj)init.S:
+$(obj)/init.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/amcc/sequoia/init.S $@
 
-$(obj)sdram.c:
+$(obj)/sdram.c:
 	@rm -f $@
-	@rm -f $(obj)sdram.h
+	@rm -f $(obj)/sdram.h
 	ln -s $(SRCTREE)/board/amcc/sequoia/sdram.c $@
-	ln -s $(SRCTREE)/board/amcc/sequoia/sdram.h $(obj)sdram.h
+	ln -s $(SRCTREE)/board/amcc/sequoia/sdram.h $(obj)/sdram.h
 
 # from nand_spl directory
-$(obj)nand_boot.c:
+$(obj)/nand_boot.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot.c $@
 
 # from drivers/mtd/nand directory
-$(obj)nand_ecc.c:
+$(obj)/nand_ecc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/mtd/nand/nand_ecc.c $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8315erdb/Makefile b/nand_spl/board/freescale/mpc8315erdb/Makefile
index c49a6e0..a685674 100644
--- a/nand_spl/board/freescale/mpc8315erdb/Makefile
+++ b/nand_spl/board/freescale/mpc8315erdb/Makefile
@@ -6,28 +6,26 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 PAD_TO := 0xfff04000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 	   $(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o ticks.o
 COBJS	= nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
 	  time.o cache.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -41,48 +39,33 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
-$(obj)start.S:
+$(obj)/start.S:
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/start.S $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)sdram.c:
+$(obj)/sdram.c:
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/sdram.c $@
 
-$(obj)$(BOARD).c:
+$(obj)/$(BOARD).c:
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)time.c:
+$(obj)/time.c:
 	ln -sf $(SRCTREE)/arch/powerpc/lib/time.c $@
 
-$(obj)ticks.S:
+$(obj)/ticks.S:
 	ln -sf $(SRCTREE)/arch/powerpc/lib/ticks.S $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8536ds/Makefile b/nand_spl/board/freescale/mpc8536ds/Makefile
index 6233081..f0beaed 100644
--- a/nand_spl/board/freescale/mpc8536ds/Makefile
+++ b/nand_spl/board/freescale/mpc8536ds/Makefile
@@ -7,29 +7,27 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -43,76 +41,55 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)cpu_init_early.c:
+$(obj)/cpu_init_early.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
-$(obj)fsl_law.c:
+$(obj)/fsl_law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
-$(obj)law.c:
+$(obj)/law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
 
-$(obj)fixed_ivor.S:
+$(obj)/fixed_ivor.S:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
-$(obj)start.S: $(obj)fixed_ivor.S
+$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
 
-$(obj)tlb.c:
+$(obj)/tlb.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
-$(obj)tlb_table.c:
+$(obj)/tlb_table.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)nand_boot.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/nand_boot.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8569mds/Makefile b/nand_spl/board/freescale/mpc8569mds/Makefile
index 6233081..f0beaed 100644
--- a/nand_spl/board/freescale/mpc8569mds/Makefile
+++ b/nand_spl/board/freescale/mpc8569mds/Makefile
@@ -7,29 +7,27 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -43,76 +41,55 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)cpu_init_early.c:
+$(obj)/cpu_init_early.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
-$(obj)fsl_law.c:
+$(obj)/fsl_law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
-$(obj)law.c:
+$(obj)/law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
 
-$(obj)fixed_ivor.S:
+$(obj)/fixed_ivor.S:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
-$(obj)start.S: $(obj)fixed_ivor.S
+$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
 
-$(obj)tlb.c:
+$(obj)/tlb.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
-$(obj)tlb_table.c:
+$(obj)/tlb_table.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)nand_boot.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/nand_boot.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8572ds/Makefile b/nand_spl/board/freescale/mpc8572ds/Makefile
index 6233081..f0beaed 100644
--- a/nand_spl/board/freescale/mpc8572ds/Makefile
+++ b/nand_spl/board/freescale/mpc8572ds/Makefile
@@ -7,29 +7,27 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -43,76 +41,55 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)cpu_init_early.c:
+$(obj)/cpu_init_early.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
-$(obj)fsl_law.c:
+$(obj)/fsl_law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
-$(obj)law.c:
+$(obj)/law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
 
-$(obj)fixed_ivor.S:
+$(obj)/fixed_ivor.S:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
-$(obj)start.S: $(obj)fixed_ivor.S
+$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
 
-$(obj)tlb.c:
+$(obj)/tlb.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
-$(obj)tlb_table.c:
+$(obj)/tlb_table.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)nand_boot.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/nand_boot.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/p1023rds/Makefile b/nand_spl/board/freescale/p1023rds/Makefile
index dbdfa19..3918ac5 100644
--- a/nand_spl/board/freescale/p1023rds/Makefile
+++ b/nand_spl/board/freescale/p1023rds/Makefile
@@ -3,28 +3,27 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-NAND_SPL := y
-PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
+PAD_TO := 0xfff01000
 
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -38,76 +37,55 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)cpu_init_early.c:
+$(obj)/cpu_init_early.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/$(CPUDIR)/cpu_init_early.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/$(CPUDIR)/spl_minimal.c $@
 
-$(obj)fsl_law.c:
+$(obj)/fsl_law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
-$(obj)law.c:
+$(obj)/law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
 
-$(obj)fixed_ivor.S:
+$(obj)/fixed_ivor.S:
 	@rm -f $@
 	ln -sf $(SRCTREE)/$(CPUDIR)/fixed_ivor.S $@
 
-$(obj)start.S: $(obj)fixed_ivor.S
+$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(SRCTREE)/$(CPUDIR)/start.S $@
 
-$(obj)tlb.c:
+$(obj)/tlb.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/$(CPUDIR)/tlb.c $@
 
-$(obj)tlb_table.c:
+$(obj)/tlb_table.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)nand_boot.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/nand_boot.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/p1_p2_rdb/Makefile b/nand_spl/board/freescale/p1_p2_rdb/Makefile
index 6233081..f0beaed 100644
--- a/nand_spl/board/freescale/p1_p2_rdb/Makefile
+++ b/nand_spl/board/freescale/p1_p2_rdb/Makefile
@@ -7,29 +7,27 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
 LDFLAGS := -T $(nandobj)u-boot-nand_spl.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 		$(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o resetvec.o
 COBJS	= cache.o cpu_init_early.o spl_minimal.o fsl_law.o law.o \
 	  nand_boot.o nand_boot_fsl_elbc.o ns16550.o tlb.o tlb_table.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
@@ -43,76 +41,55 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot-nand_spl.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot-nand_spl.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
 		-ansi -D__ASSEMBLY__ -P - <$< >$@
 
 # create symbolic links for common files
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)cpu_init_early.c:
+$(obj)/cpu_init_early.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
-$(obj)fsl_law.c:
+$(obj)/fsl_law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
-$(obj)law.c:
+$(obj)/law.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)resetvec.S:
+$(obj)/resetvec.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
 
-$(obj)fixed_ivor.S:
+$(obj)/fixed_ivor.S:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
-$(obj)start.S: $(obj)fixed_ivor.S
+$(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
 
-$(obj)tlb.c:
+$(obj)/tlb.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
-$(obj)tlb_table.c:
+$(obj)/tlb_table.c:
 	@rm -f $@
 	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
-
-ifneq ($(OBJTREE), $(SRCTREE))
-$(obj)nand_boot.c:
-	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/board/$(BOARDDIR)/nand_boot.c $@
-endif
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/sheldon/simpc8313/Makefile b/nand_spl/board/sheldon/simpc8313/Makefile
index 90f132c..35b1f97 100644
--- a/nand_spl/board/sheldon/simpc8313/Makefile
+++ b/nand_spl/board/sheldon/simpc8313/Makefile
@@ -7,27 +7,24 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
-
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
 LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE_SPL) \
 	   $(LDFLAGS) $(LDFLAGS_FINAL)
-AFLAGS	+= -DCONFIG_NAND_SPL
-CFLAGS	+= -DCONFIG_NAND_SPL
+asflags-y += -DCONFIG_NAND_SPL
+ccflags-y += -DCONFIG_NAND_SPL
 
 SOBJS	= start.o ticks.o
 COBJS	= nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o spl_minimal.o \
 	  time.o cache.o
 
-SRCS	:= $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+OBJS	:= $(addprefix $(obj)/,$(SOBJS) $(COBJS))
 __OBJS	:= $(SOBJS) $(COBJS)
 LNDIR	:= $(nandobj)board/$(BOARDDIR)
 
+targets += $(__OBJS)
+
 all: $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
 
 $(nandobj)u-boot-spl-16k.bin:	$(nandobj)u-boot-spl
@@ -41,57 +38,42 @@ $(nandobj)u-boot-spl:	$(OBJS) $(nandobj)u-boot.lds
 		-Map $(nandobj)u-boot-spl.map -o $@
 
 $(nandobj)u-boot.lds: $(LDSCRIPT)
-	$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+	$(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 
 # create symbolic links for common files
 
-$(obj)start.S:
+$(obj)/start.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/start.S $@
 
-$(obj)nand_boot_fsl_elbc.c:
+$(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
 
-$(obj)sdram.c:
+$(obj)/sdram.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/$(BOARDDIR)/sdram.c $@
 
-$(obj)$(BOARD).c:
+$(obj)/$(BOARD).c:
 	@rm -f $@
 	ln -s $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $@
 
-$(obj)ns16550.c:
+$(obj)/ns16550.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/drivers/serial/ns16550.c $@
 
-$(obj)spl_minimal.c:
+$(obj)/spl_minimal.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
 
-$(obj)cache.c:
+$(obj)/cache.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/lib/cache.c $@
 
-$(obj)time.c:
+$(obj)/time.c:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/lib/time.c $@
 
-$(obj)ticks.S:
+$(obj)/ticks.S:
 	@rm -f $@
 	ln -s $(SRCTREE)/arch/powerpc/lib/ticks.S $@
-
-#########################################################################
-
-$(obj)%.o:	$(obj)%.S
-	$(CC) $(AFLAGS) -c -o $@ $<
-
-$(obj)%.o:	$(obj)%.c
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/net/Makefile b/net/Makefile
index 31aadc2..9425950 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -5,7 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-# CFLAGS += -DDEBUG
+#ccflags-y += -DDEBUG
 
 obj-$(CONFIG_CMD_NET)  += arp.o
 obj-$(CONFIG_CMD_NET)  += bootp.o
diff --git a/post/lib_powerpc/fpu/Makefile b/post/lib_powerpc/fpu/Makefile
index ae56a82..556a833 100644
--- a/post/lib_powerpc/fpu/Makefile
+++ b/post/lib_powerpc/fpu/Makefile
@@ -5,20 +5,19 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y	+= 20001122-1.o
-obj-y	+= 20010114-2.o
-obj-y	+= 20010226-1.o
-obj-y	+= 980619-1.o
-obj-y	+= acc1.o
-obj-y	+= compare-fp-1.o
-obj-y	+= fpu.o
-obj-y	+= mul-subnormal-single-1.o
-obj-y	+= darwin-ldouble.o
+objs-before-objcopy := 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o \
+	acc1.o compare-fp-1.o fpu.o mul-subnormal-single-1.o darwin-ldouble.o
+targets += $(objs-before-objcopy)
 
-CFLAGS := $(shell echo $(CFLAGS) | sed s/-msoft-float//)
-CFLAGS += -mhard-float -fkeep-inline-functions
+# remove -msoft-float flag
+$(foreach m, $(objs-before-objcopy), $(eval CFLAGS_REMOVE_$m := -msoft-float))
+ccflags-y := -mhard-float -fkeep-inline-functions
 
-$(obj)%.o:	%.c
-	$(CC)  $(ALL_CFLAGS) -o $@.fp $< -c
-	$(OBJCOPY) -R .gnu.attributes $@.fp $@
-	rm -f $@.fp
+# Do not delete intermidiate files (*.o)
+.SECONDARY: $(call objectify, $(objs-before-objcopy))
+
+obj-y := $(objs-before-objcopy:.o=_.o)
+
+OBJCOPYFLAGS := -R .gnu.attributes
+$(obj)/%_.o: $(obj)/%.o
+	$(call if_changed,objcopy)
diff --git a/rules.mk b/rules.mk
deleted file mode 100644
index f4510b7..0000000
--- a/rules.mk
+++ /dev/null
@@ -1,51 +0,0 @@
-#
-# (C) Copyright 2006-2013
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-#########################################################################
-
-_depend:	$(obj).depend
-
-# Split the source files into two camps: those in the current directory, and
-# those somewhere else. For the first camp we want to support CPPFLAGS_<fname>
-# and for the second we don't / can't.
-PWD_SRCS := $(filter $(notdir $(SRCS)),$(SRCS))
-OTHER_SRCS := $(filter-out $(notdir $(SRCS)),$(SRCS))
-
-# This is a list of dependency files to generate
-DEPS := $(basename $(patsubst %,$(obj).depend.%,$(PWD_SRCS)))
-
-# Join all the dependencies into a single file, in three parts
-#	1 .Concatenate all the generated depend files together
-#	2. Add in the deps from OTHER_SRCS which we couldn't process
-#	3. Add in the HOSTSRCS
-$(obj).depend:	$(src)Makefile $(TOPDIR)/config.mk $(DEPS) $(OTHER_SRCS) \
-		$(HOSTSRCS)
-	cat /dev/null $(DEPS) >$@
-	@for f in $(OTHER_SRCS); do \
-		g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
-		$(CC) -M $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
-	done
-	@for f in $(HOSTSRCS); do \
-		g=`basename $$f | sed -e 's/\(.*\)\.[[:alnum:]_]/\1.o/'`; \
-		$(HOSTCC) -M $(HOSTCPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
-	done
-
-MAKE_DEPEND = $(CC) -M $(CPPFLAGS) $(EXTRA_CPPFLAGS_DEP) \
-		-MQ $(addsuffix .o,$(obj)$(basename $<)) $< >$@
-
-
-$(obj).depend.%:	%.c
-	$(MAKE_DEPEND)
-
-$(obj).depend.%:	%.S
-	$(MAKE_DEPEND)
-
-$(HOSTOBJS): $(obj)%.o: %.c
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
-$(NOPEDOBJS): $(obj)%.o: %.c
-	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTCFLAGS_$(@F)) $(HOSTCFLAGS_$(BCURDIR)) -o $@ $< -c
-
-#########################################################################
diff --git a/scripts/.gitignore b/scripts/.gitignore
new file mode 100644
index 0000000..82bc06e
--- /dev/null
+++ b/scripts/.gitignore
@@ -0,0 +1,4 @@
+#
+# Generated files
+#
+docproc
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
new file mode 100644
index 0000000..6504571
--- /dev/null
+++ b/scripts/Kbuild.include
@@ -0,0 +1,284 @@
+####
+# kbuild: Generic definitions
+
+# Convenient variables
+comma   := ,
+squote  := '
+empty   :=
+space   := $(empty) $(empty)
+
+###
+# Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o
+dot-target = $(dir $@).$(notdir $@)
+
+###
+# The temporary file to save gcc -MD generated dependencies must not
+# contain a comma
+depfile = $(subst $(comma),_,$(dot-target).d)
+
+###
+# filename of target with directory and extension stripped
+basetarget = $(basename $(notdir $@))
+
+###
+# filename of first prerequisite with directory and extension stripped
+baseprereq = $(basename $(notdir $<))
+
+###
+# Escape single quote for use in echo statements
+escsq = $(subst $(squote),'\$(squote)',$1)
+
+###
+# Easy method for doing a status message
+       kecho := :
+ quiet_kecho := echo
+silent_kecho := :
+kecho := $($(quiet)kecho)
+
+###
+# filechk is used to check if the content of a generated file is updated.
+# Sample usage:
+# define filechk_sample
+#	echo $KERNELRELEASE
+# endef
+# version.h : Makefile
+#	$(call filechk,sample)
+# The rule defined shall write to stdout the content of the new file.
+# The existing file will be compared with the new one.
+# - If no file exist it is created
+# - If the content differ the new file is used
+# - If they are equal no change, and no timestamp update
+# - stdin is piped in from the first prerequisite ($<) so one has
+#   to specify a valid file as first prerequisite (often the kbuild file)
+define filechk
+	$(Q)set -e;				\
+	$(kecho) '  CHK     $@';		\
+	mkdir -p $(dir $@);			\
+	$(filechk_$(1)) < $< > $@.tmp;		\
+	if [ -r $@ ] && cmp -s $@ $@.tmp; then	\
+		rm -f $@.tmp;			\
+	else					\
+		$(kecho) '  UPD     $@';	\
+		mv -f $@.tmp $@;		\
+	fi
+endef
+
+######
+# gcc support functions
+# See documentation in Documentation/kbuild/makefiles.txt
+
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first prefix where a prefix$(CC) is found in PATH.
+# If no $(CC) found in PATH with listed prefixes return nothing
+cc-cross-prefix =  \
+	$(word 1, $(foreach c,$(1),                                   \
+		$(shell set -e;                                       \
+		if (which $(strip $(c))$(CC)) > /dev/null 2>&1 ; then \
+			echo $(c);                                    \
+		fi)))
+
+# output directory for tests below
+TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
+
+# try-run
+# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
+# Exit code chooses option. "$$TMP" is can be used as temporary file and
+# is automatically cleaned up.
+# modifed for U-Boot: prevent cc-option from leaving .*.su files
+try-run = $(shell set -e;		\
+	TMP="$(TMPOUT).$$$$.tmp";	\
+	TMPO="$(TMPOUT).$$$$.o";	\
+	TMPSU="$(TMPOUT).$$$$.su";	\
+	if ($(1)) >/dev/null 2>&1;	\
+	then echo "$(2)";		\
+	else echo "$(3)";		\
+	fi;				\
+	rm -f "$$TMP" "$$TMPO" "$$TMPSU")
+
+# as-option
+# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
+
+as-option = $(call try-run,\
+	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
+
+# as-instr
+# Usage: cflags-y += $(call as-instr,instr,option1,option2)
+
+as-instr = $(call try-run,\
+	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
+
+# cc-option
+# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
+
+cc-option = $(call try-run,\
+	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
+
+# cc-option-yn
+# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
+cc-option-yn = $(call try-run,\
+	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
+
+# cc-option-align
+# Prefix align with either -falign or -malign
+cc-option-align = $(subst -functions=0,,\
+	$(call cc-option,-falign-functions=0,-malign-functions=0))
+
+# cc-disable-warning
+# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
+cc-disable-warning = $(call try-run,\
+	$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
+
+# cc-version
+# Usage gcc-ver := $(call cc-version)
+cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
+
+# cc-fullversion
+# Usage gcc-ver := $(call cc-fullversion)
+cc-fullversion = $(shell $(CONFIG_SHELL) \
+	$(srctree)/scripts/gcc-version.sh -p $(CC))
+
+# cc-ifversion
+# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
+cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))
+
+# added for U-Boot
+binutils-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/binutils-version.sh $(AS))
+dtc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/dtc-version.sh $(DTC))
+
+# cc-ldoption
+# Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
+cc-ldoption = $(call try-run,\
+	$(CC) $(1) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
+
+# ld-option
+# Usage: LDFLAGS += $(call ld-option, -X)
+ld-option = $(call try-run,\
+	$(CC) -x c /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))
+
+# ar-option
+# Usage: KBUILD_ARFLAGS := $(call ar-option,D)
+# Important: no spaces around options
+ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
+
+######
+
+###
+# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
+# Usage:
+# $(Q)$(MAKE) $(build)=dir
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
+
+###
+# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj=
+# Usage:
+# $(Q)$(MAKE) $(modbuiltin)=dir
+modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj
+
+# Prefix -I with $(srctree) if it is not an absolute path.
+# skip if -I has no parameter
+addtree = $(if $(patsubst -I%,%,$(1)), \
+$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
+
+# Find all -I options and call addtree
+flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
+
+# echo command.
+# Short version is used, if $(quiet) equals `quiet_', otherwise full one.
+echo-cmd = $(if $($(quiet)cmd_$(1)),\
+	echo '  $(call escsq,$($(quiet)cmd_$(1)))$(echo-why)';)
+
+# printing commands
+cmd = @$(echo-cmd) $(cmd_$(1))
+
+# Add $(obj)/ for paths that are not absolute
+objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
+
+###
+# if_changed      - execute command if any prerequisite is newer than
+#                   target, or command line has changed
+# if_changed_dep  - as if_changed, but uses fixdep to reveal dependencies
+#                   including used config symbols
+# if_changed_rule - as if_changed but execute rule instead
+# See Documentation/kbuild/makefiles.txt for more info
+
+ifneq ($(KBUILD_NOCMDDEP),1)
+# Check if both arguments has same arguments. Result is empty string if equal.
+# User may override this check using make KBUILD_NOCMDDEP=1
+arg-check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \
+                    $(filter-out $(cmd_$@),   $(cmd_$(1))) )
+else
+arg-check = $(if $(strip $(cmd_$@)),,1)
+endif
+
+# >'< substitution is for echo to work,
+# >$< substitution to preserve $ when reloading .cmd file
+# note: when using inline perl scripts [perl -e '...$$t=1;...']
+# in $(cmd_xxx) double $$ your perl vars
+make-cmd = $(subst \\,\\\\,$(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))))
+
+# Find any prerequisites that is newer than target or that does not exist.
+# PHONY targets skipped in both cases.
+any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
+
+# Execute command if command has changed or prerequisite(s) are updated.
+#
+if_changed = $(if $(strip $(any-prereq) $(arg-check)),                       \
+	@set -e;                                                             \
+	$(echo-cmd) $(cmd_$(1));                                             \
+	echo 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd)
+
+# Execute the command and also postprocess generated .d dependencies file.
+if_changed_dep = $(if $(strip $(any-prereq) $(arg-check) ),                  \
+	@set -e;                                                             \
+	$(echo-cmd) $(cmd_$(1));                                             \
+	scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp;\
+	rm -f $(depfile);                                                    \
+	mv -f $(dot-target).tmp $(dot-target).cmd)
+
+# Usage: $(call if_changed_rule,foo)
+# Will check if $(cmd_foo) or any of the prerequisites changed,
+# and if so will execute $(rule_foo).
+if_changed_rule = $(if $(strip $(any-prereq) $(arg-check) ),                 \
+	@set -e;                                                             \
+	$(rule_$(1)))
+
+###
+# why - tell why a a target got build
+#       enabled by make V=2
+#       Output (listed in the order they are checked):
+#          (1) - due to target is PHONY
+#          (2) - due to target missing
+#          (3) - due to: file1.h file2.h
+#          (4) - due to command line change
+#          (5) - due to missing .cmd file
+#          (6) - due to target not in $(targets)
+# (1) PHONY targets are always build
+# (2) No target, so we better build it
+# (3) Prerequisite is newer than target
+# (4) The command line stored in the file named dir/.target.cmd
+#     differed from actual command line. This happens when compiler
+#     options changes
+# (5) No dir/.target.cmd file (used to store command line)
+# (6) No dir/.target.cmd file and target not listed in $(targets)
+#     This is a good hint that there is a bug in the kbuild file
+ifeq ($(KBUILD_VERBOSE),2)
+why =                                                                        \
+    $(if $(filter $@, $(PHONY)),- due to target is PHONY,                    \
+        $(if $(wildcard $@),                                                 \
+            $(if $(strip $(any-prereq)),- due to: $(any-prereq),             \
+                $(if $(arg-check),                                           \
+                    $(if $(cmd_$@),- due to command line change,             \
+                        $(if $(filter $@, $(targets)),                       \
+                            - due to missing .cmd file,                      \
+                            - due to $(notdir $@) not in $$(targets)         \
+                         )                                                   \
+                     )                                                       \
+                 )                                                           \
+             ),                                                              \
+             - due to target missing                                         \
+         )                                                                   \
+     )
+
+echo-why = $(call escsq, $(strip $(why)))
+endif
diff --git a/scripts/Makefile b/scripts/Makefile
new file mode 100644
index 0000000..242e3a0
--- /dev/null
+++ b/scripts/Makefile
@@ -0,0 +1,16 @@
+###
+# scripts contains sources for various helper programs used throughout
+# the kernel for the build process.
+# ---------------------------------------------------------------------------
+# docproc:       Used in Documentation/DocBook
+
+# The following hostprogs-y programs are only build on demand
+hostprogs-y += docproc
+
+# These targets are used internally to avoid "is up to date" messages
+PHONY += build_docproc
+build_docproc: scripts/docproc
+	@:
+
+# Let clean descend into subdirs
+subdir-	+= basic
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index e3354aa..59361f4 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -1,66 +1,506 @@
-# our default target
-.PHONY: all
-all:
+# ==========================================================================
+# Building
+# ==========================================================================
 
-include $(TOPDIR)/config.mk
+# Modified for U-Boot
+ifeq ($(CONFIG_TPL_BUILD),y)
+  src := $(patsubst tpl/%,%,$(obj))
+else
+  ifeq ($(CONFIG_SPL_BUILD),y)
+    src := $(patsubst spl/%,%,$(obj))
+  else
+    src := $(obj)
+  endif
+endif
+
+PHONY := __build
+__build:
+
+# Init all relevant variables used in kbuild files so
+# 1) they have correct type
+# 2) they do not inherit any value from the environment
+obj-y :=
+obj-m :=
+lib-y :=
+lib-m :=
+always :=
+targets :=
+subdir-y :=
+subdir-m :=
+EXTRA_AFLAGS   :=
+EXTRA_CFLAGS   :=
+EXTRA_CPPFLAGS :=
+EXTRA_LDFLAGS  :=
+asflags-y  :=
+ccflags-y  :=
+cppflags-y :=
+ldflags-y  :=
+
+subdir-asflags-y :=
+subdir-ccflags-y :=
+
+# Read auto.conf if it exists, otherwise ignore
+-include include/config/auto.conf
+
+# Added for U-Boot: Load U-Boot configuration
+ifeq ($(CONFIG_TPL_BUILD),y)
+  -include include/tpl-autoconf.mk
+else
+  ifeq ($(CONFIG_SPL_BUILD),y)
+    -include include/spl-autoconf.mk
+  else
+    -include include/autoconf.mk
+  endif
+endif
+
+include scripts/Kbuild.include
+
+# Added for U-Boot
+# We must include config.mk after Kbuild.include
+# so that some config.mk can use cc-option.
+include config.mk
+
+# For backward compatibility check that these variables do not change
+save-cflags := $(CFLAGS)
+
+# The filename Kbuild has precedence over Makefile
+kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
+kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
+include $(kbuild-file)
+
+# If the save-* variables changed error out
+ifeq ($(KBUILD_NOPEDANTIC),)
+        ifneq ("$(save-cflags)","$(CFLAGS)")
+                $(error CFLAGS was changed in "$(kbuild-file)". Fix it to use ccflags-y)
+        endif
+endif
+
+#
+# make W=... settings
+#
+# W=1 - warnings that may be relevant and does not occur too often
+# W=2 - warnings that occur quite often but may still be relevant
+# W=3 - the more obscure warnings, can most likely be ignored
+#
+# $(call cc-option, -W...) handles gcc -W.. options which
+# are not supported by all versions of the compiler
+ifdef KBUILD_ENABLE_EXTRA_GCC_CHECKS
+warning-  := $(empty)
+
+warning-1 := -Wextra -Wunused -Wno-unused-parameter
+warning-1 += -Wmissing-declarations
+warning-1 += -Wmissing-format-attribute
+warning-1 += -Wmissing-prototypes
+warning-1 += -Wold-style-definition
+warning-1 += $(call cc-option, -Wmissing-include-dirs)
+warning-1 += $(call cc-option, -Wunused-but-set-variable)
+warning-1 += $(call cc-disable-warning, missing-field-initializers)
+
+warning-2 := -Waggregate-return
+warning-2 += -Wcast-align
+warning-2 += -Wdisabled-optimization
+warning-2 += -Wnested-externs
+warning-2 += -Wshadow
+warning-2 += $(call cc-option, -Wlogical-op)
+warning-2 += $(call cc-option, -Wmissing-field-initializers)
+
+warning-3 := -Wbad-function-cast
+warning-3 += -Wcast-qual
+warning-3 += -Wconversion
+warning-3 += -Wpacked
+warning-3 += -Wpadded
+warning-3 += -Wpointer-arith
+warning-3 += -Wredundant-decls
+warning-3 += -Wswitch-default
+warning-3 += $(call cc-option, -Wpacked-bitfield-compat)
+warning-3 += $(call cc-option, -Wvla)
+
+warning := $(warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+warning += $(warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+warning += $(warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
 
-LIB := $(obj)built-in.o
-LIBGCC = $(obj)libgcc.o
-SRCS :=
+ifeq ("$(strip $(warning))","")
+        $(error W=$(KBUILD_ENABLE_EXTRA_GCC_CHECKS) is unknown)
+endif
 
-include Makefile
+KBUILD_CFLAGS += $(warning)
+endif
 
-# Going forward use the following
-obj-y := $(sort $(obj-y))
-extra-y := $(sort $(extra-y))
-lib-y := $(sort $(lib-y))
+include scripts/Makefile.lib
 
-subdir-y 	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
-obj-y		:= $(patsubst %/, %/built-in.o, $(obj-y))
-subdir-obj-y	:= $(filter %/built-in.o, $(obj-y))
-subdir-obj-y	:= $(addprefix $(obj),$(subdir-obj-y))
+ifdef host-progs
+ifneq ($(hostprogs-y),$(host-progs))
+$(warning kbuild: $(obj)/Makefile - Usage of host-progs is deprecated. Please replace with hostprogs-y!)
+hostprogs-y += $(host-progs)
+endif
+endif
 
-SRCS	+= $(wildcard $(obj-y:.o=.c) $(obj-y:.o=.S) $(lib-y:.o=.c) \
-	$(lib-y:.o=.S) $(extra-y:.o=.c) $(extra-y:.o=.S))
-OBJS	:= $(addprefix $(obj),$(obj-y))
+# Do not include host rules unless needed
+ifneq ($(hostprogs-y)$(hostprogs-m),)
+include scripts/Makefile.host
+endif
 
-# $(obj-dirs) is a list of directories that contain object files
-obj-dirs := $(dir $(OBJS))
+# Uncommented for U-Boot
+#  We need to create output dicrectory for SPL and TPL even for in-tree build
+#ifneq ($(KBUILD_SRC),)
+# Create output directory if not already present
+_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
 
 # Create directories for object files if directory does not exist
 # Needed when obj-y := dir/file.o syntax is used
 _dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
+#endif
+
+ifndef obj
+$(warning kbuild: Makefile.build is included improperly)
+endif
+
+# ===========================================================================
+
+ifneq ($(strip $(lib-y) $(lib-m) $(lib-n) $(lib-)),)
+lib-target := $(obj)/lib.a
+endif
 
-LGOBJS := $(addprefix $(obj),$(sort $(lib-y)))
+ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-) $(subdir-m) $(lib-target)),)
+builtin-target := $(obj)/built-in.o
+endif
 
-all: $(LIB) $(addprefix $(obj),$(extra-y))
+modorder-target := $(obj)/modules.order
 
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
+# We keep a list of all modules in $(MODVERDIR)
 
-ifneq ($(strip $(lib-y)),)
-all: $(LIBGCC)
+__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
+	 $(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \
+	 $(subdir-ym) $(always)
+	@:
 
-$(LIBGCC): $(obj).depend $(LGOBJS)
-	$(call cmd_link_o_target, $(LGOBJS))
+# Linus' kernel sanity checking tool
+ifneq ($(KBUILD_CHECKSRC),0)
+  ifeq ($(KBUILD_CHECKSRC),2)
+    quiet_cmd_force_checksrc = CHECK   $<
+          cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
+  else
+      quiet_cmd_checksrc     = CHECK   $<
+            cmd_checksrc     = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
+  endif
 endif
 
-ifneq ($(subdir-obj-y),)
-# Descending
-$(subdir-obj-y): $(subdir-y)
+# Do section mismatch analysis for each module/built-in.o
+ifdef CONFIG_DEBUG_SECTION_MISMATCH
+  cmd_secanalysis = ; scripts/mod/modpost $@
+endif
+
+# Compile C sources (.c)
+# ---------------------------------------------------------------------------
+
+# Default is built-in, unless we know otherwise
+modkern_cflags =                                          \
+	$(if $(part-of-module),                           \
+		$(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
+		$(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL))
+quiet_modtag := $(empty)   $(empty)
+
+$(real-objs-m)        : part-of-module := y
+$(real-objs-m:.o=.i)  : part-of-module := y
+$(real-objs-m:.o=.s)  : part-of-module := y
+$(real-objs-m:.o=.lst): part-of-module := y
+
+$(real-objs-m)        : quiet_modtag := [M]
+$(real-objs-m:.o=.i)  : quiet_modtag := [M]
+$(real-objs-m:.o=.s)  : quiet_modtag := [M]
+$(real-objs-m:.o=.lst): quiet_modtag := [M]
+
+$(obj-m)              : quiet_modtag := [M]
+
+# Default for not multi-part modules
+modname = $(basetarget)
+
+$(multi-objs-m)         : modname = $(modname-multi)
+$(multi-objs-m:.o=.i)   : modname = $(modname-multi)
+$(multi-objs-m:.o=.s)   : modname = $(modname-multi)
+$(multi-objs-m:.o=.lst) : modname = $(modname-multi)
+$(multi-objs-y)         : modname = $(modname-multi)
+$(multi-objs-y:.o=.i)   : modname = $(modname-multi)
+$(multi-objs-y:.o=.s)   : modname = $(modname-multi)
+$(multi-objs-y:.o=.lst) : modname = $(modname-multi)
+
+quiet_cmd_cc_s_c = CC $(quiet_modtag)  $@
+cmd_cc_s_c       = $(CC) $(c_flags) -fverbose-asm -S -o $@ $<
+
+$(obj)/%.s: $(src)/%.c FORCE
+	$(call if_changed_dep,cc_s_c)
+
+quiet_cmd_cc_i_c = CPP $(quiet_modtag) $@
+cmd_cc_i_c       = $(CPP) $(c_flags)   -o $@ $<
+
+$(obj)/%.i: $(src)/%.c FORCE
+	$(call if_changed_dep,cc_i_c)
+
+cmd_gensymtypes =                                                           \
+    $(CPP) -D__GENKSYMS__ $(c_flags) $< |                                   \
+    $(GENKSYMS) $(if $(1), -T $(2))                                         \
+     $(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))             \
+     $(if $(KBUILD_PRESERVE),-p)                                            \
+     -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
+
+quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
+cmd_cc_symtypes_c =                                                         \
+    set -e;                                                                 \
+    $(call cmd_gensymtypes,true,$@) >/dev/null;                             \
+    test -s $@ || rm -f $@
+
+$(obj)/%.symtypes : $(src)/%.c FORCE
+	$(call cmd,cc_symtypes_c)
+
+# C (.c) files
+# The C file is compiled and updated dependency information is generated.
+# (See cmd_cc_o_c + relevant part of rule_cc_o_c)
+
+quiet_cmd_cc_o_c = CC $(quiet_modtag)  $@
+
+ifndef CONFIG_MODVERSIONS
+cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
 
-$(subdir-y): FORCE
-	$(MAKE) -C $@ -f $(TOPDIR)/scripts/Makefile.build
+else
+# When module versioning is enabled the following steps are executed:
+# o compile a .tmp_<file>.o from <file>.c
+# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
+#   not export symbols, we just rename .tmp_<file>.o to <file>.o and
+#   are done.
+# o otherwise, we calculate symbol versions using the good old
+#   genksyms on the preprocessed source and postprocess them in a way
+#   that they are usable as a linker script
+# o generate <file>.o from .tmp_<file>.o using the linker to
+#   replace the unresolved symbols __crc_exported_symbol with
+#   the actual value of the checksum generated by genksyms
+
+cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
+cmd_modversions =								\
+	if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then		\
+		$(call cmd_gensymtypes,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
+		    > $(@D)/.tmp_$(@F:.o=.ver);					\
+										\
+		$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) 			\
+			-T $(@D)/.tmp_$(@F:.o=.ver);				\
+		rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver);		\
+	else									\
+		mv -f $(@D)/.tmp_$(@F) $@;					\
+	fi;
+endif
+
+ifdef CONFIG_FTRACE_MCOUNT_RECORD
+ifdef BUILD_C_RECORDMCOUNT
+ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
+  RECORDMCOUNT_FLAGS = -w
 endif
+# Due to recursion, we must skip empty.o.
+# The empty.o file is created in the make process in order to determine
+#  the target endianness and word size. It is made before all other C
+#  files, including recordmcount.
+sub_cmd_record_mcount =					\
+	if [ $(@) != "scripts/mod/empty.o" ]; then	\
+		$(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)";	\
+	fi;
+recordmcount_source := $(srctree)/scripts/recordmcount.c \
+		    $(srctree)/scripts/recordmcount.h
+else
+sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
+	"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
+	"$(if $(CONFIG_64BIT),64,32)" \
+	"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
+	"$(LD)" "$(NM)" "$(RM)" "$(MV)" \
+	"$(if $(part-of-module),1,0)" "$(@)";
+recordmcount_source := $(srctree)/scripts/recordmcount.pl
+endif
+cmd_record_mcount = 						\
+	if [ "$(findstring -pg,$(_c_flags))" = "-pg" ]; then	\
+		$(sub_cmd_record_mcount)			\
+	fi;
+endif
+
+define rule_cc_o_c
+	$(call echo-cmd,checksrc) $(cmd_checksrc)			  \
+	$(call echo-cmd,cc_o_c) $(cmd_cc_o_c);				  \
+	$(cmd_modversions)						  \
+	$(call echo-cmd,record_mcount)					  \
+	$(cmd_record_mcount)						  \
+	scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' >    \
+	                                              $(dot-target).tmp;  \
+	rm -f $(depfile);						  \
+	mv -f $(dot-target).tmp $(dot-target).cmd
+endef
+
+# Built-in and composite module parts
+$(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
+	$(call cmd,force_checksrc)
+	$(call if_changed_rule,cc_o_c)
+
+# Single-part modules are special since we need to mark them in $(MODVERDIR)
+
+$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
+	$(call cmd,force_checksrc)
+	$(call if_changed_rule,cc_o_c)
+	@{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)
+
+quiet_cmd_cc_lst_c = MKLST   $@
+      cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
+		     $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
+				     System.map $(OBJDUMP) > $@
+
+$(obj)/%.lst: $(src)/%.c FORCE
+	$(call if_changed_dep,cc_lst_c)
+
+# Compile assembler sources (.S)
+# ---------------------------------------------------------------------------
+
+modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
+
+$(real-objs-m)      : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+
+quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
+cmd_as_s_S       = $(CPP) $(a_flags)   -o $@ $< 
+
+$(obj)/%.s: $(src)/%.S FORCE
+	$(call if_changed_dep,as_s_S)
+
+quiet_cmd_as_o_S = AS $(quiet_modtag)  $@
+cmd_as_o_S       = $(CC) $(a_flags) -c -o $@ $<
+
+$(obj)/%.o: $(src)/%.S FORCE
+	$(call if_changed_dep,as_o_S)
+
+targets += $(real-objs-y) $(real-objs-m) $(lib-y)
+targets += $(extra-y) $(MAKECMDGOALS) $(always)
+
+# Linker scripts preprocessor (.lds.S -> .lds)
+# ---------------------------------------------------------------------------
+quiet_cmd_cpp_lds_S = LDS     $@
+      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
+	                     -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
+
+$(obj)/%.lds: $(src)/%.lds.S FORCE
+	$(call if_changed_dep,cpp_lds_S)
+
+# ASN.1 grammar
+# ---------------------------------------------------------------------------
+quiet_cmd_asn1_compiler = ASN.1   $@
+      cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
+				$(subst .h,.c,$@) $(subst .c,.h,$@)
+
+.PRECIOUS: $(objtree)/$(obj)/%-asn1.c $(objtree)/$(obj)/%-asn1.h
+
+$(obj)/%-asn1.c $(obj)/%-asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
+	$(call cmd,asn1_compiler)
 
-#########################################################################
+# Build the compiled-in targets
+# ---------------------------------------------------------------------------
 
-# defines $(obj).depend target
+# To build objects in subdirs, we need to descend into the directories
+$(sort $(subdir-obj-y)): $(subdir-ym) ;
 
-include $(TOPDIR)/rules.mk
+#
+# Rule to compile a set of .o files into one .o file
+#
+ifdef builtin-target
+quiet_cmd_link_o_target = LD      $@
+# If the list of objects to link is empty, just create an empty built-in.o
+cmd_link_o_target = $(if $(strip $(obj-y)),\
+		      $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^) \
+		      $(cmd_secanalysis),\
+		      rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@)
 
-sinclude $(obj).depend
+$(builtin-target): $(obj-y) FORCE
+	$(call if_changed,link_o_target)
+
+targets += $(builtin-target)
+endif # builtin-target
+
+#
+# Rule to create modules.order file
+#
+# Create commands to either record .ko file or cat modules.order from
+# a subdirectory
+modorder-cmds =						\
+	$(foreach m, $(modorder),			\
+		$(if $(filter %/modules.order, $m),	\
+			cat $m;, echo kernel/$m;))
+
+$(modorder-target): $(subdir-ym) FORCE
+	$(Q)(cat /dev/null; $(modorder-cmds)) > $@
+
+#
+# Rule to compile a set of .o files into one .a file
+#
+ifdef lib-target
+quiet_cmd_link_l_target = AR      $@
+cmd_link_l_target = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@ $(lib-y)
+
+$(lib-target): $(lib-y) FORCE
+	$(call if_changed,link_l_target)
+
+targets += $(lib-target)
+endif
+
+#
+# Rule to link composite objects
+#
+#  Composite objects are specified in kbuild makefile as follows:
+#    <composite-object>-objs := <list of .o files>
+#  or
+#    <composite-object>-y    := <list of .o files>
+link_multi_deps =                     \
+$(filter $(addprefix $(obj)/,         \
+$($(subst $(obj)/,,$(@:.o=-objs)))    \
+$($(subst $(obj)/,,$(@:.o=-y)))), $^)
+ 
+quiet_cmd_link_multi-y = LD      $@
+cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
+
+quiet_cmd_link_multi-m = LD [M]  $@
+cmd_link_multi-m = $(cmd_link_multi-y)
+
+# We would rather have a list of rules like
+# 	foo.o: $(foo-objs)
+# but that's not so easy, so we rather make all composite objects depend
+# on the set of all their parts
+$(multi-used-y) : %.o: $(multi-objs-y) FORCE
+	$(call if_changed,link_multi-y)
+
+$(multi-used-m) : %.o: $(multi-objs-m) FORCE
+	$(call if_changed,link_multi-m)
+	@{ echo $(@:.o=.ko); echo $(link_multi_deps); } > $(MODVERDIR)/$(@F:.o=.mod)
+
+targets += $(multi-used-y) $(multi-used-m)
+
+
+# Descending
+# ---------------------------------------------------------------------------
+
+PHONY += $(subdir-ym)
+$(subdir-ym):
+	$(Q)$(MAKE) $(build)=$@
+
+# Add FORCE to the prequisites of a target to force it to be always rebuilt.
+# ---------------------------------------------------------------------------
+
+PHONY += FORCE
+
+FORCE:
+
+# Read all saved command lines and dependencies for the $(targets) we
+# may be building above, using $(if_changed{,_dep}). As an
+# optimization, we don't need to read them if the target does not
+# exist, we will rebuild anyway in that case.
+
+targets := $(wildcard $(sort $(targets)))
+cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
+
+ifneq ($(cmd_files),)
+  include $(cmd_files)
+endif
 
-#########################################################################
+# Declare the contents of the .PHONY variable as phony.  We keep that
+# information in a variable se we can use it in if_changed and friends.
 
-.PHONY: FORCE
+.PHONY: $(PHONY)
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
new file mode 100644
index 0000000..5cd0f51
--- /dev/null
+++ b/scripts/Makefile.clean
@@ -0,0 +1,108 @@
+# ==========================================================================
+# Cleaning up
+# ==========================================================================
+
+src := $(obj)
+
+PHONY := __clean
+__clean:
+
+# Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir
+# Usage:
+# $(Q)$(MAKE) $(clean)=dir
+clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
+
+# The filename Kbuild has precedence over Makefile
+kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
+include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile)
+
+# Figure out what we need to build from the various variables
+# ==========================================================================
+
+__subdir-y	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
+subdir-y	+= $(__subdir-y)
+__subdir-m	:= $(patsubst %/,%,$(filter %/, $(obj-m)))
+subdir-m	+= $(__subdir-m)
+__subdir-n	:= $(patsubst %/,%,$(filter %/, $(obj-n)))
+subdir-n	+= $(__subdir-n)
+__subdir-	:= $(patsubst %/,%,$(filter %/, $(obj-)))
+subdir-		+= $(__subdir-)
+
+# Subdirectories we need to descend into
+
+subdir-ym	:= $(sort $(subdir-y) $(subdir-m))
+subdir-ymn      := $(sort $(subdir-ym) $(subdir-n) $(subdir-))
+
+# Add subdir path
+
+subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
+
+# Temporal work-around for U-Boot
+
+subdir-ymn	:= $(foreach f, $(subdir-ymn), $(if $(wildcard $f/Makefile),$f))
+
+# build a list of files to remove, usually relative to the current
+# directory
+
+__clean-files	:= $(extra-y) $(always)                  \
+		   $(targets) $(clean-files)             \
+		   $(host-progs)                         \
+		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
+
+__clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
+
+# as clean-files is given relative to the current directory, this adds
+# a $(obj) prefix, except for absolute paths
+
+__clean-files   := $(wildcard                                               \
+                   $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \
+		   $(filter /%, $(__clean-files)))
+
+# as clean-dirs is given relative to the current directory, this adds
+# a $(obj) prefix, except for absolute paths
+
+__clean-dirs    := $(wildcard                                               \
+                   $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs)))    \
+		   $(filter /%, $(clean-dirs)))
+
+# ==========================================================================
+
+quiet_cmd_clean    = CLEAN   $(obj)
+      cmd_clean    = rm -f $(__clean-files)
+quiet_cmd_cleandir = CLEAN   $(__clean-dirs)
+      cmd_cleandir = rm -rf $(__clean-dirs)
+
+
+__clean: $(subdir-ymn)
+ifneq ($(strip $(__clean-files)),)
+	+$(call cmd,clean)
+endif
+ifneq ($(strip $(__clean-dirs)),)
+	+$(call cmd,cleandir)
+endif
+ifneq ($(strip $(clean-rule)),)
+	+$(clean-rule)
+endif
+	@:
+
+
+# ===========================================================================
+# Generic stuff
+# ===========================================================================
+
+# Descending
+# ---------------------------------------------------------------------------
+
+PHONY += $(subdir-ymn)
+$(subdir-ymn):
+	$(Q)$(MAKE) $(clean)=$@
+
+# If quiet is set, only print short version of command
+
+cmd = @$(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))' &&) $(cmd_$(1))
+
+
+# Declare the contents of the .PHONY variable as phony.  We keep that
+# information in a variable se we can use it in if_changed and friends.
+
+.PHONY: $(PHONY)
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
new file mode 100644
index 0000000..1ac414f
--- /dev/null
+++ b/scripts/Makefile.host
@@ -0,0 +1,170 @@
+# ==========================================================================
+# Building binaries on the host system
+# Binaries are used during the compilation of the kernel, for example
+# to preprocess a data file.
+#
+# Both C and C++ are supported, but preferred language is C for such utilities.
+#
+# Sample syntax (see Documentation/kbuild/makefiles.txt for reference)
+# hostprogs-y := bin2hex
+# Will compile bin2hex.c and create an executable named bin2hex
+#
+# hostprogs-y    := lxdialog
+# lxdialog-objs := checklist.o lxdialog.o
+# Will compile lxdialog.c and checklist.c, and then link the executable
+# lxdialog, based on checklist.o and lxdialog.o
+#
+# hostprogs-y      := qconf
+# qconf-cxxobjs   := qconf.o
+# qconf-objs      := menu.o
+# Will compile qconf as a C++ program, and menu as a C program.
+# They are linked as C++ code to the executable qconf
+
+# hostprogs-y := conf
+# conf-objs  := conf.o libkconfig.so
+# libkconfig-objs := expr.o type.o
+# Will create a shared library named libkconfig.so that consists of
+# expr.o and type.o (they are both compiled as C code and the object files
+# are made as position independent code).
+# conf.c is compiled as a C program, and conf.o is linked together with
+# libkconfig.so as the executable conf.
+# Note: Shared libraries consisting of C++ files are not supported
+
+__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
+
+# C code
+# Executables compiled from a single .c file
+host-csingle	:= $(foreach m,$(__hostprogs),$(if $($(m)-objs),,$(m)))
+
+# C executables linked based on several .o files
+host-cmulti	:= $(foreach m,$(__hostprogs),\
+		   $(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
+
+# Object (.o) files compiled from .c files
+host-cobjs	:= $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
+
+# C++ code
+# C++ executables compiled from at least on .cc file
+# and zero or more .c files
+host-cxxmulti	:= $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
+
+# C++ Object (.o) files compiled from .cc files
+host-cxxobjs	:= $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
+
+# Shared libaries (only .c supported)
+# Shared libraries (.so) - all .so files referenced in "xxx-objs"
+host-cshlib	:= $(sort $(filter %.so, $(host-cobjs)))
+# Remove .so files from "xxx-objs"
+host-cobjs	:= $(filter-out %.so,$(host-cobjs))
+
+#Object (.o) files used by the shared libaries
+host-cshobjs	:= $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
+
+# output directory for programs/.o files
+# hostprogs-y := tools/build may have been specified. Retrieve directory
+host-objdirs := $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f))))
+# directory of .o files from prog-objs notation
+host-objdirs += $(foreach f,$(host-cmulti),                  \
+                    $(foreach m,$($(f)-objs),                \
+                        $(if $(dir $(m)),$(dir $(m)))))
+# directory of .o files from prog-cxxobjs notation
+host-objdirs += $(foreach f,$(host-cxxmulti),                  \
+                    $(foreach m,$($(f)-cxxobjs),                \
+                        $(if $(dir $(m)),$(dir $(m)))))
+
+host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
+
+
+__hostprogs     := $(addprefix $(obj)/,$(__hostprogs))
+host-csingle	:= $(addprefix $(obj)/,$(host-csingle))
+host-cmulti	:= $(addprefix $(obj)/,$(host-cmulti))
+host-cobjs	:= $(addprefix $(obj)/,$(host-cobjs))
+host-cxxmulti	:= $(addprefix $(obj)/,$(host-cxxmulti))
+host-cxxobjs	:= $(addprefix $(obj)/,$(host-cxxobjs))
+host-cshlib	:= $(addprefix $(obj)/,$(host-cshlib))
+host-cshobjs	:= $(addprefix $(obj)/,$(host-cshobjs))
+host-objdirs    := $(addprefix $(obj)/,$(host-objdirs))
+
+obj-dirs += $(host-objdirs)
+
+#####
+# Handle options to gcc. Support building with separate output directory
+
+_hostc_flags   = $(HOSTCFLAGS)   $(HOST_EXTRACFLAGS)   \
+                 $(HOSTCFLAGS_$(basetarget).o)
+_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
+                 $(HOSTCXXFLAGS_$(basetarget).o)
+
+ifeq ($(KBUILD_SRC),)
+__hostc_flags	= $(_hostc_flags)
+__hostcxx_flags	= $(_hostcxx_flags)
+else
+__hostc_flags	= -I$(obj) $(call flags,_hostc_flags)
+__hostcxx_flags	= -I$(obj) $(call flags,_hostcxx_flags)
+endif
+
+hostc_flags    = -Wp,-MD,$(depfile) $(__hostc_flags)
+hostcxx_flags  = -Wp,-MD,$(depfile) $(__hostcxx_flags)
+
+#####
+# Compile programs on the host
+
+# Create executable from a single .c file
+# host-csingle -> Executable
+quiet_cmd_host-csingle 	= HOSTCC  $@
+      cmd_host-csingle	= $(HOSTCC) $(hostc_flags) -o $@ $< \
+	  	$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-csingle): $(obj)/%: $(src)/%.c FORCE
+	$(call if_changed_dep,host-csingle)
+
+# Link an executable based on list of .o files, all plain c
+# host-cmulti -> executable
+quiet_cmd_host-cmulti	= HOSTLD  $@
+      cmd_host-cmulti	= $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
+			  $(addprefix $(obj)/,$($(@F)-objs)) \
+			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-cmulti): $(obj)/%: $(host-cobjs) $(host-cshlib) FORCE
+	$(call if_changed,host-cmulti)
+
+# Create .o file from a single .c file
+# host-cobjs -> .o
+quiet_cmd_host-cobjs	= HOSTCC  $@
+      cmd_host-cobjs	= $(HOSTCC) $(hostc_flags) -c -o $@ $<
+$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
+	$(call if_changed_dep,host-cobjs)
+
+# Link an executable based on list of .o files, a mixture of .c and .cc
+# host-cxxmulti -> executable
+quiet_cmd_host-cxxmulti	= HOSTLD  $@
+      cmd_host-cxxmulti	= $(HOSTCXX) $(HOSTLDFLAGS) -o $@ \
+			  $(foreach o,objs cxxobjs,\
+			  $(addprefix $(obj)/,$($(@F)-$(o)))) \
+			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-cxxmulti): $(obj)/%: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE
+	$(call if_changed,host-cxxmulti)
+
+# Create .o file from a single .cc (C++) file
+quiet_cmd_host-cxxobjs	= HOSTCXX $@
+      cmd_host-cxxobjs	= $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
+$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
+	$(call if_changed_dep,host-cxxobjs)
+
+# Compile .c file, create position independent .o file
+# host-cshobjs -> .o
+quiet_cmd_host-cshobjs	= HOSTCC  -fPIC $@
+      cmd_host-cshobjs	= $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
+$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
+	$(call if_changed_dep,host-cshobjs)
+
+# Link a shared library, based on position independent .o files
+# *.o -> .so shared library (host-cshlib)
+quiet_cmd_host-cshlib	= HOSTLLD -shared $@
+      cmd_host-cshlib	= $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \
+			  $(addprefix $(obj)/,$($(@F:.so=-objs))) \
+			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
+	$(call if_changed,host-cshlib)
+
+targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)\
+	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) 
+
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
new file mode 100644
index 0000000..02b17b1
--- /dev/null
+++ b/scripts/Makefile.lib
@@ -0,0 +1,374 @@
+# Backward compatibility
+asflags-y  += $(EXTRA_AFLAGS)
+ccflags-y  += $(EXTRA_CFLAGS)
+cppflags-y += $(EXTRA_CPPFLAGS)
+ldflags-y  += $(EXTRA_LDFLAGS)
+
+#
+# flags that take effect in sub directories
+export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
+export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
+
+# Figure out what we need to build from the various variables
+# ===========================================================================
+
+# When an object is listed to be built compiled-in and modular,
+# only build the compiled-in version
+
+obj-m := $(filter-out $(obj-y),$(obj-m))
+
+# Libraries are always collected in one lib file.
+# Filter out objects already built-in
+
+lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
+
+
+# Handle objects in subdirs
+# ---------------------------------------------------------------------------
+# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
+#   and add the directory to the list of dirs to descend into: $(subdir-y)
+# o if we encounter foo/ in $(obj-m), remove it from $(obj-m) 
+#   and add the directory to the list of dirs to descend into: $(subdir-m)
+
+# Determine modorder.
+# Unfortunately, we don't have information about ordering between -y
+# and -m subdirs.  Just put -y's first.
+modorder	:= $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
+
+__subdir-y	:= $(patsubst %/,%,$(filter %/, $(obj-y)))
+subdir-y	+= $(__subdir-y)
+__subdir-m	:= $(patsubst %/,%,$(filter %/, $(obj-m)))
+subdir-m	+= $(__subdir-m)
+obj-y		:= $(patsubst %/, %/built-in.o, $(obj-y))
+obj-m		:= $(filter-out %/, $(obj-m))
+
+# Subdirectories we need to descend into
+
+subdir-ym	:= $(sort $(subdir-y) $(subdir-m))
+
+# if $(foo-objs) exists, foo.o is a composite object 
+multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
+multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
+multi-used   := $(multi-used-y) $(multi-used-m)
+single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
+
+# Build list of the parts of our composite objects, our composite
+# objects depend on those (obviously)
+multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
+multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
+multi-objs   := $(multi-objs-y) $(multi-objs-m)
+
+# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
+# tell kbuild to descend
+subdir-obj-y := $(filter %/built-in.o, $(obj-y))
+
+# $(obj-dirs) is a list of directories that contain object files
+obj-dirs := $(dir $(multi-objs) $(obj-y))
+
+# Replace multi-part objects by their individual parts, look at local dir only
+real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
+real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
+
+# Add subdir path
+
+extra-y		:= $(addprefix $(obj)/,$(extra-y))
+always		:= $(addprefix $(obj)/,$(always))
+targets		:= $(addprefix $(obj)/,$(targets))
+modorder	:= $(addprefix $(obj)/,$(modorder))
+obj-y		:= $(addprefix $(obj)/,$(obj-y))
+obj-m		:= $(addprefix $(obj)/,$(obj-m))
+lib-y		:= $(addprefix $(obj)/,$(lib-y))
+subdir-obj-y	:= $(addprefix $(obj)/,$(subdir-obj-y))
+real-objs-y	:= $(addprefix $(obj)/,$(real-objs-y))
+real-objs-m	:= $(addprefix $(obj)/,$(real-objs-m))
+single-used-m	:= $(addprefix $(obj)/,$(single-used-m))
+multi-used-y	:= $(addprefix $(obj)/,$(multi-used-y))
+multi-used-m	:= $(addprefix $(obj)/,$(multi-used-m))
+multi-objs-y	:= $(addprefix $(obj)/,$(multi-objs-y))
+multi-objs-m	:= $(addprefix $(obj)/,$(multi-objs-m))
+subdir-ym	:= $(addprefix $(obj)/,$(subdir-ym))
+obj-dirs	:= $(addprefix $(obj)/,$(obj-dirs))
+
+# These flags are needed for modversions and compiling, so we define them here
+# already
+# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will 
+# end up in (or would, if it gets compiled in)
+# Note: Files that end up in two or more modules are compiled without the
+#       KBUILD_MODNAME definition. The reason is that any made-up name would
+#       differ in different configs.
+name-fix = $(subst $(comma),_,$(subst -,_,$1))
+basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
+modname_flags  = $(if $(filter 1,$(words $(modname))),\
+                 -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
+
+# U-Boot also uses $(CPPFLAGS)
+orig_c_flags   = $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
+                 $(ccflags-y) $(CFLAGS_$(basetarget).o)
+_c_flags       = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
+_a_flags       = $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
+                 $(asflags-y) $(AFLAGS_$(basetarget).o)
+_cpp_flags     = $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
+
+#
+# Enable gcov profiling flags for a file, directory or for all files depending
+# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
+# (in this order)
+#
+ifeq ($(CONFIG_GCOV_KERNEL),y)
+_c_flags += $(if $(patsubst n%,, \
+		$(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
+		$(CFLAGS_GCOV))
+endif
+
+# If building the kernel in a separate objtree expand all occurrences
+# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
+
+ifeq ($(KBUILD_SRC),)
+__c_flags	= $(_c_flags)
+__a_flags	= $(_a_flags)
+__cpp_flags     = $(_cpp_flags)
+else
+
+# -I$(obj) locates generated .h files
+# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
+#   and locates generated .h files
+# FIXME: Replace both with specific CFLAGS* statements in the makefiles
+__c_flags	= $(call addtree,-I$(obj)) $(call flags,_c_flags)
+__a_flags	=                          $(call flags,_a_flags)
+__cpp_flags     =                          $(call flags,_cpp_flags)
+endif
+
+# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
+c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
+		 $(__c_flags) $(modkern_cflags)                           \
+		 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
+
+a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
+		 $(__a_flags) $(modkern_aflags)
+
+cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
+		 $(__cpp_flags)
+
+ld_flags       = $(LDFLAGS) $(ldflags-y)
+
+# Modified for U-Boot
+dtc_cpp_flags  = -Wp,-MD,$(depfile).pre.tmp -nostdinc                    \
+		 -I$(srctree)/arch/$(ARCH)/dts                           \
+		 -undef -D__DTS__
+
+# Finds the multi-part object the current object will be linked into
+modname-multi = $(sort $(foreach m,$(multi-used),\
+		$(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
+
+ifdef REGENERATE_PARSERS
+
+# GPERF
+# ---------------------------------------------------------------------------
+quiet_cmd_gperf = GPERF $@
+      cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $<
+
+.PRECIOUS: $(src)/%.hash.c_shipped
+$(src)/%.hash.c_shipped: $(src)/%.gperf
+	$(call cmd,gperf)
+
+# LEX
+# ---------------------------------------------------------------------------
+LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
+
+quiet_cmd_flex = LEX     $@
+      cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
+
+.PRECIOUS: $(src)/%.lex.c_shipped
+$(src)/%.lex.c_shipped: $(src)/%.l
+	$(call cmd,flex)
+
+# YACC
+# ---------------------------------------------------------------------------
+YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
+
+quiet_cmd_bison = YACC    $@
+      cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
+
+.PRECIOUS: $(src)/%.tab.c_shipped
+$(src)/%.tab.c_shipped: $(src)/%.y
+	$(call cmd,bison)
+
+quiet_cmd_bison_h = YACC    $@
+      cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
+
+.PRECIOUS: $(src)/%.tab.h_shipped
+$(src)/%.tab.h_shipped: $(src)/%.y
+	$(call cmd,bison_h)
+
+endif
+
+# Shipped files
+# ===========================================================================
+
+quiet_cmd_shipped = SHIPPED $@
+cmd_shipped = cat $< > $@
+
+$(obj)/%: $(src)/%_shipped
+	$(call cmd,shipped)
+
+# Commands useful for building a boot image
+# ===========================================================================
+# 
+#	Use as following:
+#
+#	target: source(s) FORCE
+#		$(if_changed,ld/objcopy/gzip)
+#
+#	and add target to extra-y so that we know we have to
+#	read in the saved command line
+
+# Linking
+# ---------------------------------------------------------------------------
+
+quiet_cmd_ld = LD      $@
+cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
+	       $(filter-out FORCE,$^) -o $@ 
+
+# Objcopy
+# ---------------------------------------------------------------------------
+
+quiet_cmd_objcopy = OBJCOPY $@
+cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
+
+# Gzip
+# ---------------------------------------------------------------------------
+
+quiet_cmd_gzip = GZIP    $@
+cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
+	(rm -f $@ ; false)
+
+# DTC
+# ---------------------------------------------------------------------------
+
+# Generate an assembly file to wrap the output of the device tree compiler
+quiet_cmd_dt_S_dtb= DTB     $@
+# Modified for U-Boot
+cmd_dt_S_dtb=						\
+(							\
+	echo '.section .dtb.init.rodata,"a"';		\
+	echo '.global __dtb_$(*F)_begin';		\
+	echo '__dtb_$(*F)_begin:';			\
+	echo '.incbin "$<" ';				\
+	echo '__dtb_$(*F)_end:';			\
+	echo '.global __dtb_$(*F)_end';			\
+) > $@
+
+$(obj)/%.dtb.S: $(obj)/%.dtb
+	$(call cmd,dt_S_dtb)
+
+quiet_cmd_dtc = DTC     $@
+# Modified for U-Boot
+cmd_dtc = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+	dtc -O dtb -o $@ -b 0 \
+		-i $(dir $<) $(DTC_FLAGS) \
+		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
+	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
+
+$(obj)/%.dtb: $(src)/%.dts FORCE
+	$(call if_changed_dep,dtc)
+
+dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
+
+# Bzip2
+# ---------------------------------------------------------------------------
+
+# Bzip2 and LZMA do not include size in file... so we have to fake that;
+# append the size as a 32-bit littleendian number as gzip does.
+size_append = printf $(shell						\
+dec_size=0;								\
+for F in $1; do								\
+	fsize=$$(stat -c "%s" $$F);					\
+	dec_size=$$(expr $$dec_size + $$fsize);				\
+done;									\
+printf "%08x\n" $$dec_size |						\
+	sed 's/\(..\)/\1 /g' | {					\
+		read ch0 ch1 ch2 ch3;					\
+		for ch in $$ch3 $$ch2 $$ch1 $$ch0; do			\
+			printf '%s%03o' '\\' $$((0x$$ch)); 		\
+		done;							\
+	}								\
+)
+
+quiet_cmd_bzip2 = BZIP2   $@
+cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
+	bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
+
+# Lzma
+# ---------------------------------------------------------------------------
+
+quiet_cmd_lzma = LZMA    $@
+cmd_lzma = (cat $(filter-out FORCE,$^) | \
+	lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
+
+quiet_cmd_lzo = LZO     $@
+cmd_lzo = (cat $(filter-out FORCE,$^) | \
+	lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
+
+quiet_cmd_lz4 = LZ4     $@
+cmd_lz4 = (cat $(filter-out FORCE,$^) | \
+	lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
+
+# U-Boot mkimage
+# ---------------------------------------------------------------------------
+
+MKIMAGE := $(srctree)/scripts/mkuboot.sh
+
+# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
+# the number of overrides in arch makefiles
+UIMAGE_ARCH ?= $(SRCARCH)
+UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
+UIMAGE_OPTS-y ?=
+UIMAGE_TYPE ?= kernel
+UIMAGE_LOADADDR ?= arch_must_set_this
+UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
+UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
+UIMAGE_IN ?= $<
+UIMAGE_OUT ?= $@
+
+quiet_cmd_uimage = UIMAGE  $(UIMAGE_OUT)
+      cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
+			-C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
+			-T $(UIMAGE_TYPE) \
+			-a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
+			-n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
+
+# XZ
+# ---------------------------------------------------------------------------
+# Use xzkern to compress the kernel image and xzmisc to compress other things.
+#
+# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
+# of the kernel decompressor. A BCJ filter is used if it is available for
+# the target architecture. xzkern also appends uncompressed size of the data
+# using size_append. The .xz format has the size information available at
+# the end of the file too, but it's in more complex format and it's good to
+# avoid changing the part of the boot code that reads the uncompressed size.
+# Note that the bytes added by size_append will make the xz tool think that
+# the file is corrupt. This is expected.
+#
+# xzmisc doesn't use size_append, so it can be used to create normal .xz
+# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
+# big dictionary would increase the memory usage too much in the multi-call
+# decompression mode. A BCJ filter isn't used either.
+quiet_cmd_xzkern = XZKERN  $@
+cmd_xzkern = (cat $(filter-out FORCE,$^) | \
+	sh $(srctree)/scripts/xz_wrap.sh && \
+	$(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
+
+quiet_cmd_xzmisc = XZMISC  $@
+cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
+	xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
+	(rm -f $@ ; false)
+
+# misc stuff
+# ---------------------------------------------------------------------------
+quote:="
diff --git a/scripts/basic/.gitignore b/scripts/basic/.gitignore
new file mode 100644
index 0000000..a776371
--- /dev/null
+++ b/scripts/basic/.gitignore
@@ -0,0 +1 @@
+fixdep
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
new file mode 100644
index 0000000..4fcef87
--- /dev/null
+++ b/scripts/basic/Makefile
@@ -0,0 +1,15 @@
+###
+# Makefile.basic lists the most basic programs used during the build process.
+# The programs listed herein are what are needed to do the basic stuff,
+# such as fix file dependencies.
+# This initial step is needed to avoid files to be recompiled
+# when kernel configuration changes (which is what happens when
+# .config is included by main Makefile.
+# ---------------------------------------------------------------------------
+# fixdep: 	 Used to generate dependency information during build process
+
+hostprogs-y	:= fixdep
+always		:= $(hostprogs-y)
+
+# fixdep is needed to compile other host programs
+$(addprefix $(obj)/,$(filter-out fixdep,$(always))): $(obj)/fixdep
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
new file mode 100644
index 0000000..078fe1d
--- /dev/null
+++ b/scripts/basic/fixdep.c
@@ -0,0 +1,462 @@
+/*
+ * "Optimize" a list of dependencies as spit out by gcc -MD
+ * for the kernel build
+ * ===========================================================================
+ *
+ * Author       Kai Germaschewski
+ * Copyright    2002 by Kai Germaschewski  <kai.germaschewski@gmx.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ *
+ * Introduction:
+ *
+ * gcc produces a very nice and correct list of dependencies which
+ * tells make when to remake a file.
+ *
+ * To use this list as-is however has the drawback that virtually
+ * every file in the kernel includes autoconf.h.
+ *
+ * If the user re-runs make *config, autoconf.h will be
+ * regenerated.  make notices that and will rebuild every file which
+ * includes autoconf.h, i.e. basically all files. This is extremely
+ * annoying if the user just changed CONFIG_HIS_DRIVER from n to m.
+ *
+ * So we play the same trick that "mkdep" played before. We replace
+ * the dependency on autoconf.h by a dependency on every config
+ * option which is mentioned in any of the listed prequisites.
+ *
+ * kconfig populates a tree in include/config/ with an empty file
+ * for each config symbol and when the configuration is updated
+ * the files representing changed config options are touched
+ * which then let make pick up the changes and the files that use
+ * the config symbols are rebuilt.
+ *
+ * So if the user changes his CONFIG_HIS_DRIVER option, only the objects
+ * which depend on "include/linux/config/his/driver.h" will be rebuilt,
+ * so most likely only his driver ;-)
+ *
+ * The idea above dates, by the way, back to Michael E Chastain, AFAIK.
+ *
+ * So to get dependencies right, there are two issues:
+ * o if any of the files the compiler read changed, we need to rebuild
+ * o if the command line given to the compile the file changed, we
+ *   better rebuild as well.
+ *
+ * The former is handled by using the -MD output, the later by saving
+ * the command line used to compile the old object and comparing it
+ * to the one we would now use.
+ *
+ * Again, also this idea is pretty old and has been discussed on
+ * kbuild-devel a long time ago. I don't have a sensibly working
+ * internet connection right now, so I rather don't mention names
+ * without double checking.
+ *
+ * This code here has been based partially based on mkdep.c, which
+ * says the following about its history:
+ *
+ *   Copyright abandoned, Michael Chastain, <mailto:mec@shout.net>.
+ *   This is a C version of syncdep.pl by Werner Almesberger.
+ *
+ *
+ * It is invoked as
+ *
+ *   fixdep <depfile> <target> <cmdline>
+ *
+ * and will read the dependency file <depfile>
+ *
+ * The transformed dependency snipped is written to stdout.
+ *
+ * It first generates a line
+ *
+ *   cmd_<target> = <cmdline>
+ *
+ * and then basically copies the .<target>.d file to stdout, in the
+ * process filtering out the dependency on autoconf.h and adding
+ * dependencies on include/config/my/option.h for every
+ * CONFIG_MY_OPTION encountered in any of the prequisites.
+ *
+ * It will also filter out all the dependencies on *.ver. We need
+ * to make sure that the generated version checksum are globally up
+ * to date before even starting the recursive build, so it's too late
+ * at this point anyway.
+ *
+ * The algorithm to grep for "CONFIG_..." is bit unusual, but should
+ * be fast ;-) We don't even try to really parse the header files, but
+ * merely grep, i.e. if CONFIG_FOO is mentioned in a comment, it will
+ * be picked up as well. It's not a problem with respect to
+ * correctness, since that can only give too many dependencies, thus
+ * we cannot miss a rebuild. Since people tend to not mention totally
+ * unrelated CONFIG_ options all over the place, it's not an
+ * efficiency problem either.
+ *
+ * (Note: it'd be easy to port over the complete mkdep state machine,
+ *  but I don't think the added complexity is worth it)
+ */
+/*
+ * Note 2: if somebody writes HELLO_CONFIG_BOOM in a file, it will depend onto
+ * CONFIG_BOOM. This could seem a bug (not too hard to fix), but please do not
+ * fix it! Some UserModeLinux files (look at arch/um/) call CONFIG_BOOM as
+ * UML_CONFIG_BOOM, to avoid conflicts with /usr/include/linux/autoconf.h,
+ * through arch/um/include/uml-config.h; this fixdep "bug" makes sure that
+ * those files will have correct dependencies.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <limits.h>
+#include <ctype.h>
+#include <arpa/inet.h>
+
+#define INT_CONF ntohl(0x434f4e46)
+#define INT_ONFI ntohl(0x4f4e4649)
+#define INT_NFIG ntohl(0x4e464947)
+#define INT_FIG_ ntohl(0x4649475f)
+
+char *target;
+char *depfile;
+char *cmdline;
+
+static void usage(void)
+{
+	fprintf(stderr, "Usage: fixdep <depfile> <target> <cmdline>\n");
+	exit(1);
+}
+
+/*
+ * Print out the commandline prefixed with cmd_<target filename> :=
+ */
+static void print_cmdline(void)
+{
+	printf("cmd_%s := %s\n\n", target, cmdline);
+}
+
+struct item {
+	struct item	*next;
+	unsigned int	len;
+	unsigned int	hash;
+	char		name[0];
+};
+
+#define HASHSZ 256
+static struct item *hashtab[HASHSZ];
+
+static unsigned int strhash(const char *str, unsigned int sz)
+{
+	/* fnv32 hash */
+	unsigned int i, hash = 2166136261U;
+
+	for (i = 0; i < sz; i++)
+		hash = (hash ^ str[i]) * 0x01000193;
+	return hash;
+}
+
+/*
+ * Lookup a value in the configuration string.
+ */
+static int is_defined_config(const char *name, int len, unsigned int hash)
+{
+	struct item *aux;
+
+	for (aux = hashtab[hash % HASHSZ]; aux; aux = aux->next) {
+		if (aux->hash == hash && aux->len == len &&
+		    memcmp(aux->name, name, len) == 0)
+			return 1;
+	}
+	return 0;
+}
+
+/*
+ * Add a new value to the configuration string.
+ */
+static void define_config(const char *name, int len, unsigned int hash)
+{
+	struct item *aux = malloc(sizeof(*aux) + len);
+
+	if (!aux) {
+		perror("fixdep:malloc");
+		exit(1);
+	}
+	memcpy(aux->name, name, len);
+	aux->len = len;
+	aux->hash = hash;
+	aux->next = hashtab[hash % HASHSZ];
+	hashtab[hash % HASHSZ] = aux;
+}
+
+/*
+ * Clear the set of configuration strings.
+ */
+static void clear_config(void)
+{
+	struct item *aux, *next;
+	unsigned int i;
+
+	for (i = 0; i < HASHSZ; i++) {
+		for (aux = hashtab[i]; aux; aux = next) {
+			next = aux->next;
+			free(aux);
+		}
+		hashtab[i] = NULL;
+	}
+}
+
+/*
+ * Record the use of a CONFIG_* word.
+ */
+static void use_config(const char *m, int slen)
+{
+	unsigned int hash = strhash(m, slen);
+	int c, i;
+
+	if (is_defined_config(m, slen, hash))
+	    return;
+
+	define_config(m, slen, hash);
+
+	printf("    $(wildcard include/config/");
+	for (i = 0; i < slen; i++) {
+		c = m[i];
+		if (c == '_')
+			c = '/';
+		else
+			c = tolower(c);
+		putchar(c);
+	}
+	printf(".h) \\\n");
+}
+
+static void parse_config_file(const char *map, size_t len)
+{
+	const int *end = (const int *) (map + len);
+	/* start at +1, so that p can never be < map */
+	const int *m   = (const int *) map + 1;
+	const char *p, *q;
+
+	for (; m < end; m++) {
+		if (*m == INT_CONF) { p = (char *) m  ; goto conf; }
+		if (*m == INT_ONFI) { p = (char *) m-1; goto conf; }
+		if (*m == INT_NFIG) { p = (char *) m-2; goto conf; }
+		if (*m == INT_FIG_) { p = (char *) m-3; goto conf; }
+		continue;
+	conf:
+		if (p > map + len - 7)
+			continue;
+		if (memcmp(p, "CONFIG_", 7))
+			continue;
+		for (q = p + 7; q < map + len; q++) {
+			if (!(isalnum(*q) || *q == '_'))
+				goto found;
+		}
+		continue;
+
+	found:
+		if (!memcmp(q - 7, "_MODULE", 7))
+			q -= 7;
+		if( (q-p-7) < 0 )
+			continue;
+		use_config(p+7, q-p-7);
+	}
+}
+
+/* test is s ends in sub */
+static int strrcmp(char *s, char *sub)
+{
+	int slen = strlen(s);
+	int sublen = strlen(sub);
+
+	if (sublen > slen)
+		return 1;
+
+	return memcmp(s + slen - sublen, sub, sublen);
+}
+
+static void do_config_file(const char *filename)
+{
+	struct stat st;
+	int fd;
+	void *map;
+
+	fd = open(filename, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "fixdep: error opening config file: ");
+		perror(filename);
+		exit(2);
+	}
+	fstat(fd, &st);
+	if (st.st_size == 0) {
+		close(fd);
+		return;
+	}
+	map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if ((long) map == -1) {
+		perror("fixdep: mmap");
+		close(fd);
+		return;
+	}
+
+	parse_config_file(map, st.st_size);
+
+	munmap(map, st.st_size);
+
+	close(fd);
+}
+
+/*
+ * Important: The below generated source_foo.o and deps_foo.o variable
+ * assignments are parsed not only by make, but also by the rather simple
+ * parser in scripts/mod/sumversion.c.
+ */
+static void parse_dep_file(void *map, size_t len)
+{
+	char *m = map;
+	char *end = m + len;
+	char *p;
+	char s[PATH_MAX];
+	int is_target;
+	int saw_any_target = 0;
+	int is_first_dep = 0;
+
+	clear_config();
+
+	while (m < end) {
+		/* Skip any "white space" */
+		while (m < end && (*m == ' ' || *m == '\\' || *m == '\n'))
+			m++;
+		/* Find next "white space" */
+		p = m;
+		while (p < end && *p != ' ' && *p != '\\' && *p != '\n')
+			p++;
+		/* Is the token we found a target name? */
+		is_target = (*(p-1) == ':');
+		/* Don't write any target names into the dependency file */
+		if (is_target) {
+			/* The /next/ file is the first dependency */
+			is_first_dep = 1;
+		} else {
+			/* Save this token/filename */
+			memcpy(s, m, p-m);
+			s[p - m] = 0;
+
+			/* Ignore certain dependencies */
+			if (strrcmp(s, "include/generated/autoconf.h") &&
+			    strrcmp(s, "arch/um/include/uml-config.h") &&
+			    strrcmp(s, "include/linux/kconfig.h") &&
+			    strrcmp(s, ".ver")) {
+				/*
+				 * Do not list the source file as dependency,
+				 * so that kbuild is not confused if a .c file
+				 * is rewritten into .S or vice versa. Storing
+				 * it in source_* is needed for modpost to
+				 * compute srcversions.
+				 */
+				if (is_first_dep) {
+					/*
+					 * If processing the concatenation of
+					 * multiple dependency files, only
+					 * process the first target name, which
+					 * will be the original source name,
+					 * and ignore any other target names,
+					 * which will be intermediate temporary
+					 * files.
+					 */
+					if (!saw_any_target) {
+						saw_any_target = 1;
+						printf("source_%s := %s\n\n",
+							target, s);
+						printf("deps_%s := \\\n",
+							target);
+					}
+					is_first_dep = 0;
+				} else
+					printf("  %s \\\n", s);
+				do_config_file(s);
+			}
+		}
+		/*
+		 * Start searching for next token immediately after the first
+		 * "whitespace" character that follows this token.
+		 */
+		m = p + 1;
+	}
+
+	if (!saw_any_target) {
+		fprintf(stderr, "fixdep: parse error; no targets found\n");
+		exit(1);
+	}
+
+	printf("\n%s: $(deps_%s)\n\n", target, target);
+	printf("$(deps_%s):\n", target);
+}
+
+static void print_deps(void)
+{
+	struct stat st;
+	int fd;
+	void *map;
+
+	fd = open(depfile, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "fixdep: error opening depfile: ");
+		perror(depfile);
+		exit(2);
+	}
+	if (fstat(fd, &st) < 0) {
+                fprintf(stderr, "fixdep: error fstat'ing depfile: ");
+                perror(depfile);
+                exit(2);
+        }
+	if (st.st_size == 0) {
+		fprintf(stderr,"fixdep: %s is empty\n",depfile);
+		close(fd);
+		return;
+	}
+	map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if ((long) map == -1) {
+		perror("fixdep: mmap");
+		close(fd);
+		return;
+	}
+
+	parse_dep_file(map, st.st_size);
+
+	munmap(map, st.st_size);
+
+	close(fd);
+}
+
+static void traps(void)
+{
+	static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
+	int *p = (int *)test;
+
+	if (*p != INT_CONF) {
+		fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x\n",
+			*p);
+		exit(2);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	traps();
+
+	if (argc != 4)
+		usage();
+
+	depfile = argv[1];
+	target = argv[2];
+	cmdline = argv[3];
+
+	print_cmdline();
+	print_deps();
+
+	return 0;
+}
diff --git a/tools/kernel-doc/docproc.c b/scripts/docproc.c
index a9b49c5..2b69eaf 100644
--- a/tools/kernel-doc/docproc.c
+++ b/scripts/docproc.c
@@ -65,13 +65,14 @@ FILELINE * docsection;
 
 #define MAXLINESZ     2048
 #define MAXFILES      250
-#define KERNELDOCPATH "tools/kernel-doc/"
+#define KERNELDOCPATH "scripts/"
 #define KERNELDOC     "kernel-doc"
 #define DOCBOOK       "-docbook"
 #define LIST          "-list"
 #define FUNCTION      "-function"
 #define NOFUNCTION    "-nofunction"
 #define NODOCSECTIONS "-no-doc-sections"
+#define SHOWNOTFOUND  "-show-not-found"
 
 static char *srctree, *kernsrctree;
 
@@ -153,7 +154,7 @@ int symfilecnt = 0;
 static void add_new_symbol(struct symfile *sym, char * symname)
 {
 	sym->symbollist =
-	  realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
+          realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
 	sym->symbollist[sym->symbolcnt++].name = strdup(symname);
 }
 
@@ -214,7 +215,7 @@ static void find_export_symbols(char * filename)
 			char *p;
 			char *e;
 			if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != NULL) ||
-			    ((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
+                            ((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
 				/* Skip EXPORT_SYMBOL{_GPL} */
 				while (isalnum(*p) || *p == '_')
 					p++;
@@ -290,27 +291,28 @@ static void extfunc(char * filename) { docfunctions(filename, FUNCTION);   }
 static void singfunc(char * filename, char * line)
 {
 	char *vec[200]; /* Enough for specific functions */
-	int i, idx = 0;
-	int startofsym = 1;
+        int i, idx = 0;
+        int startofsym = 1;
 	vec[idx++] = KERNELDOC;
 	vec[idx++] = DOCBOOK;
-
-	/* Split line up in individual parameters preceded by FUNCTION */
-	for (i=0; line[i]; i++) {
-		if (isspace(line[i])) {
-			line[i] = '\0';
-			startofsym = 1;
-			continue;
-		}
-		if (startofsym) {
-			startofsym = 0;
-			vec[idx++] = FUNCTION;
-			vec[idx++] = &line[i];
-		}
-	}
+	vec[idx++] = SHOWNOTFOUND;
+
+        /* Split line up in individual parameters preceded by FUNCTION */
+        for (i=0; line[i]; i++) {
+                if (isspace(line[i])) {
+                        line[i] = '\0';
+                        startofsym = 1;
+                        continue;
+                }
+                if (startofsym) {
+                        startofsym = 0;
+                        vec[idx++] = FUNCTION;
+                        vec[idx++] = &line[i];
+                }
+        }
 	for (i = 0; i < idx; i++) {
-		if (strcmp(vec[i], FUNCTION))
-			continue;
+        	if (strcmp(vec[i], FUNCTION))
+        		continue;
 		consume_symbol(vec[i + 1]);
 	}
 	vec[idx++] = filename;
@@ -325,7 +327,8 @@ static void singfunc(char * filename, char * line)
  */
 static void docsect(char *filename, char *line)
 {
-	char *vec[6]; /* kerneldoc -docbook -function "section" file NULL */
+	/* kerneldoc -docbook -show-not-found -function "section" file NULL */
+	char *vec[7];
 	char *s;
 
 	for (s = line; *s; s++)
@@ -341,10 +344,11 @@ static void docsect(char *filename, char *line)
 
 	vec[0] = KERNELDOC;
 	vec[1] = DOCBOOK;
-	vec[2] = FUNCTION;
-	vec[3] = line;
-	vec[4] = filename;
-	vec[5] = NULL;
+	vec[2] = SHOWNOTFOUND;
+	vec[3] = FUNCTION;
+	vec[4] = line;
+	vec[5] = filename;
+	vec[6] = NULL;
 	exec_kernel_doc(vec);
 }
 
@@ -456,14 +460,14 @@ static void parse_file(FILE *infile)
 					break;
 				case 'D':
 					while (*s && !isspace(*s)) s++;
-					*s = '\0';
-					symbolsonly(line+2);
-					break;
+                                        *s = '\0';
+                                        symbolsonly(line+2);
+                                        break;
 				case 'F':
 					/* filename */
 					while (*s && !isspace(*s)) s++;
 					*s++ = '\0';
-					/* function names */
+                                        /* function names */
 					while (isspace(*s))
 						s++;
 					singlefunctions(line +2, s);
@@ -511,11 +515,11 @@ int main(int argc, char *argv[])
 	}
 	/* Open file, exit on error */
 	infile = fopen(argv[2], "r");
-	if (infile == NULL) {
-		fprintf(stderr, "docproc: ");
-		perror(argv[2]);
-		exit(2);
-	}
+        if (infile == NULL) {
+                fprintf(stderr, "docproc: ");
+                perror(argv[2]);
+                exit(2);
+        }
 
 	if (strcmp("doc", argv[1]) == 0) {
 		/* Need to do this in two passes.
diff --git a/tools/kernel-doc/kernel-doc b/scripts/kernel-doc
index cbbf34c..ba2bafd 100755
--- a/tools/kernel-doc/kernel-doc
+++ b/scripts/kernel-doc
@@ -137,6 +137,8 @@ use strict;
 # should document the "Context:" of the function, e.g. whether the functions
 # can be called form interrupts. Unlike other sections you can end it with an
 # empty line.
+# A non-void function should have a "Return:" section describing the return
+# value(s).
 # Example-sections should contain the string EXAMPLE so that they are marked
 # appropriately in DocBook.
 #
@@ -245,6 +247,7 @@ my $dohighlight = "";
 
 my $verbose = 0;
 my $output_mode = "man";
+my $output_preformatted = 0;
 my $no_doc_sections = 0;
 my %highlights = %highlights_man;
 my $blankline = $blankline_man;
@@ -254,6 +257,7 @@ my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
 		'July', 'August', 'September', 'October',
 		'November', 'December')[(localtime)[4]] .
   " " . ((localtime)[5]+1900);
+my $show_not_found = 0;
 
 # Essentially these are globals.
 # They probably want to be tidied up, made more localised or something.
@@ -295,9 +299,10 @@ my $doc_special = "\@\%\$\&";
 my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
 my $doc_end = '\*/';
 my $doc_com = '\s*\*\s*';
+my $doc_com_body = '\s*\* ?';
 my $doc_decl = $doc_com . '(\w+)';
 my $doc_sect = $doc_com . '([' . $doc_special . ']?[\w\s]+):(.*)';
-my $doc_content = $doc_com . '(.*)';
+my $doc_content = $doc_com_body . '(.*)';
 my $doc_block = $doc_com . 'DOC:\s*(.*)?';
 
 my %constants;
@@ -313,6 +318,7 @@ my $section_default = "Description";	# default section
 my $section_intro = "Introduction";
 my $section = $section_default;
 my $section_context = "Context";
+my $section_return = "Return";
 
 my $undescribed = "-- undescribed --";
 
@@ -364,6 +370,8 @@ while ($ARGV[0] =~ m/^-(.*)/) {
 	usage();
     } elsif ($cmd eq '-no-doc-sections') {
 	    $no_doc_sections = 1;
+    } elsif ($cmd eq '-show-not-found') {
+	$show_not_found = 1;
     }
 }
 
@@ -432,7 +440,7 @@ sub dump_doc_section {
     my $contents = join "\n", @_;
 
     if ($no_doc_sections) {
-	return;
+        return;
     }
 
     if (($function_only == 0) ||
@@ -485,8 +493,13 @@ sub output_highlight {
 	$contents =~ s/\s+$//;
     }
     foreach $line (split "\n", $contents) {
+	if (! $output_preformatted) {
+	    $line =~ s/^\s*//;
+	}
 	if ($line eq ""){
-	    print $lineprefix, local_unescape($blankline);
+	    if (! $output_preformatted) {
+		print $lineprefix, local_unescape($blankline);
+	    }
 	} else {
 	    $line =~ s/\\\\\\/\&/g;
 	    if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
@@ -902,10 +915,12 @@ sub output_section_xml(%) {
 	print "<title>$section</title>\n";
 	if ($section =~ m/EXAMPLE/i) {
 	    print "<informalexample><programlisting>\n";
+	    $output_preformatted = 1;
 	} else {
 	    print "<para>\n";
 	}
 	output_highlight($args{'sections'}{$section});
+	$output_preformatted = 0;
 	if ($section =~ m/EXAMPLE/i) {
 	    print "</programlisting></informalexample>\n";
 	} else {
@@ -1208,10 +1223,12 @@ sub output_blockhead_xml(%) {
 	}
 	if ($section =~ m/EXAMPLE/i) {
 	    print "<example><para>\n";
+	    $output_preformatted = 1;
 	} else {
 	    print "<para>\n";
 	}
 	output_highlight($args{'sections'}{$section});
+	$output_preformatted = 0;
 	if ($section =~ m/EXAMPLE/i) {
 	    print "</para></example>\n";
 	} else {
@@ -1287,10 +1304,12 @@ sub output_function_gnome {
 	print "<simplesect>\n <title>$section</title>\n";
 	if ($section =~ m/EXAMPLE/i) {
 	    print "<example><programlisting>\n";
+	    $output_preformatted = 1;
 	} else {
 	}
 	print "<para>\n";
 	output_highlight($args{'sections'}{$section});
+	$output_preformatted = 0;
 	print "</para>\n";
 	if ($section =~ m/EXAMPLE/i) {
 	    print "</programlisting></example>\n";
@@ -1734,7 +1753,7 @@ sub dump_struct($$) {
 	# strip kmemcheck_bitfield_{begin,end}.*;
 	$members =~ s/kmemcheck_bitfield_.*?;//gos;
 	# strip attributes
-	$members =~ s/__aligned\s*\(\d+\)//gos;
+	$members =~ s/__aligned\s*\(.+\)//gos;
 
 	create_parameterlist($members, ';', $file);
 	check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
@@ -2026,6 +2045,28 @@ sub check_sections($$$$$$) {
 }
 
 ##
+# Checks the section describing the return value of a function.
+sub check_return_section {
+        my $file = shift;
+        my $declaration_name = shift;
+        my $return_type = shift;
+
+        # Ignore an empty return type (It's a macro)
+        # Ignore functions with a "void" return type. (But don't ignore "void *")
+        if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
+                return;
+        }
+
+        if (!defined($sections{$section_return}) ||
+            $sections{$section_return} eq "") {
+                print STDERR "Warning(${file}:$.): " .
+                        "No description found for return value of " .
+                        "'$declaration_name'\n";
+                ++$warnings;
+        }
+}
+
+##
 # takes a function prototype and the name of the current file being
 # processed and spits out all the details stored in the global
 # arrays/hashes.
@@ -2041,7 +2082,6 @@ sub dump_function($$) {
     $prototype =~ s/^__inline +//;
     $prototype =~ s/^__always_inline +//;
     $prototype =~ s/^noinline +//;
-    $prototype =~ s/__devinit +//;
     $prototype =~ s/__init +//;
     $prototype =~ s/__init_or_module +//;
     $prototype =~ s/__must_check +//;
@@ -2088,14 +2128,22 @@ sub dump_function($$) {
 
 	create_parameterlist($args, ',', $file);
     } else {
-	print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
-	++$errors;
+	print STDERR "Warning(${file}:$.): cannot understand function prototype: '$prototype'\n";
 	return;
     }
 
 	my $prms = join " ", @parameterlist;
 	check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
 
+        # This check emits a lot of warnings at the moment, because many
+        # functions don't have a 'Return' doc section. So until the number
+        # of warnings goes sufficiently down, the check is only performed in
+        # verbose mode.
+        # TODO: always perform the check.
+        if ($verbose) {
+                check_return_section($file, $declaration_name, $return_type);
+        }
+
     output_declaration($declaration_name,
 		       'function',
 		       {'function' => $declaration_name,
@@ -2305,6 +2353,9 @@ sub process_file($) {
 
     $section_counter = 0;
     while (<IN>) {
+	while (s/\\\s*$//) {
+	    $_ .= <IN>;
+	}
 	if ($state == 0) {
 	    if (/$doc_start/o) {
 		$state = 1;		# next line is always the function name
@@ -2332,7 +2383,7 @@ sub process_file($) {
 		    $descr= $1;
 		    $descr =~ s/^\s*//;
 		    $descr =~ s/\s*$//;
-		    $descr =~ s/\s+/ /;
+		    $descr =~ s/\s+/ /g;
 		    $declaration_purpose = xml_escape($descr);
 		    $in_purpose = 1;
 		} else {
@@ -2424,9 +2475,7 @@ sub process_file($) {
 		    # Continued declaration purpose
 		    chomp($declaration_purpose);
 		    $declaration_purpose .= " " . xml_escape($1);
-		} elsif ($section =~ m/^Example/) {
-		    $_ =~ s/^\s*\*//;
-		    $contents .= $_;
+		    $declaration_purpose =~ s/\s+/ /g;
 		} else {
 		    $contents .= $1 . "\n";
 		}
@@ -2489,6 +2538,9 @@ sub process_file($) {
     }
     if ($initial_section_counter == $section_counter) {
 	print STDERR "Warning(${file}): no structured comments found\n";
+	if (($function_only == 1) && ($show_not_found == 1)) {
+	    print STDERR "    Was looking for '$_'.\n" for keys %function_table;
+	}
 	if ($output_mode eq "xml") {
 	    # The template wants at least one RefEntry here; make one.
 	    print "<refentry>\n";
diff --git a/scripts/mkmakefile b/scripts/mkmakefile
new file mode 100644
index 0000000..0cc0442
--- /dev/null
+++ b/scripts/mkmakefile
@@ -0,0 +1,59 @@
+#!/bin/sh
+# Generates a small Makefile used in the root of the output
+# directory, to allow make to be started from there.
+# The Makefile also allow for more convinient build of external modules
+
+# Usage
+# $1 - Kernel src directory
+# $2 - Output directory
+# $3 - version
+# $4 - patchlevel
+
+
+test ! -r $2/Makefile -o -O $2/Makefile || exit 0
+# Only overwrite automatically generated Makefiles
+# (so we do not overwrite kernel Makefile)
+if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
+then
+	exit 0
+fi
+if [ "${quiet}" != "silent_" ]; then
+	echo "  GEN     $2/Makefile"
+fi
+
+cat << EOF > $2/Makefile
+# Automatically generated by $0: don't edit
+
+VERSION = $3
+PATCHLEVEL = $4
+
+lastword = \$(word \$(words \$(1)),\$(1))
+makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST)))
+
+ifeq ("\$(origin V)", "command line")
+VERBOSE := \$(V)
+endif
+ifneq (\$(VERBOSE),1)
+Q := @
+endif
+
+MAKEARGS := -C $1
+MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir))
+
+MAKEFLAGS += --no-print-directory
+
+.PHONY: all \$(MAKECMDGOALS)
+
+all	:= \$(filter-out all Makefile,\$(MAKECMDGOALS))
+
+all:
+	\$(Q)\$(MAKE) \$(MAKEARGS) \$(all)
+
+Makefile:;
+
+\$(all): all
+	@:
+
+%/: all
+	@:
+EOF
diff --git a/spl/Makefile b/spl/Makefile
index 4143e38..bf98024 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -14,9 +14,25 @@
 # 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
@@ -24,16 +40,32 @@ else
 SPL_BIN := u-boot-spl
 endif
 
-include $(TOPDIR)/config.mk
+include include/config.mk
 
-# We want the final binaries in this directory
 ifeq ($(CONFIG_TPL_BUILD),y)
-obj := $(OBJTREE)/tpl/
-SPLTREE := $(TPLTREE)
+  -include include/tpl-autoconf.mk
 else
-obj := $(OBJTREE)/spl/
+  -include include/spl-autoconf.mk
 endif
 
+include $(TOPDIR)/config.mk
+
+# FIX ME
+c_flags := $(KBUILD_CFLAGS) $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
+
+# Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
+quiet_cmd_autoconf = GEN     $@
+      cmd_autoconf = \
+	$(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
+		sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
+	rm $@.tmp
+
+include/tpl-autoconf.mk: include/config.h
+	$(call cmd,autoconf)
+
+include/spl-autoconf.mk: include/config.h
+	$(call cmd,autoconf)
+
 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
 
 ifdef	CONFIG_SPL_START_S_PATH
@@ -47,65 +79,65 @@ 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/$(ARCH)/lib/
+libs-y += arch/$(ARCH)/lib/
 
-LIBS-y += $(CPUDIR)/
+libs-y += $(CPUDIR)/
 
 ifdef SOC
-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-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/
+libs-y += arch/$(ARCH)/imx-common/
 endif
 
-LIBS-$(CONFIG_ARM) += arch/arm/cpu/
-LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
+libs-$(CONFIG_ARM) += arch/arm/cpu/
+libs-$(CONFIG_PPC) += arch/powerpc/cpu/
+
+head-y		:= $(addprefix $(obj)/,$(head-y))
+libs-y		:= $(addprefix $(obj)/,$(libs-y))
+u-boot-spl-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y)))
 
-LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
+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 $(SPLTREE)/,$(head-y))
-LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
-
-__START := $(subst $(obj),,$(START))
-__LIBS := $(subst $(obj),,$(LIBS))
+u-boot-spl-init := $(head-y)
+u-boot-spl-main := $(libs-y)
 
 # Linker Script
 ifdef CONFIG_SPL_LDSCRIPT
@@ -126,8 +158,6 @@ 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.
@@ -138,21 +168,21 @@ LDPPFLAGS += \
 	$(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:	$(ALL-y)
@@ -163,32 +193,44 @@ VAR_SIZE_PARAM = --vs
 else
 VAR_SIZE_PARAM =
 endif
-$(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
-	$(OBJTREE)/tools/mk$(BOARD)spl $(VAR_SIZE_PARAM) $< $@
+$(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)
+$(obj)/$(SPL_BIN).bin:	$(obj)/$(SPL_BIN)
 	$(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
 
-GEN_UBOOT = \
-	cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
-		--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-		-Map $(SPL_BIN).map -o $(SPL_BIN)
+LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
+ifneq ($(CONFIG_SPL_TEXT_BASE),)
+LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
+endif
+
+quiet_cmd_u-boot-spl = LD      $@
+      cmd_u-boot-spl = cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
+		       $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
+		       $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
+		       $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)
+
+$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds
+	$(call cmd,u-boot-spl)
 
-$(obj)$(SPL_BIN):	depend $(START) $(LIBS) $(obj)u-boot-spl.lds
-	$(GEN_UBOOT)
+$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 
-$(START):
-	@:
+PHONY += $(u-boot-spl-dirs)
+$(u-boot-spl-dirs):
+	$(Q)$(MAKE) $(build)=$@
 
-$(LIBS):	depend
-	$(MAKE) $(build) $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
+# 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)
diff --git a/test/command_ut.c b/test/command_ut.c
index 0e83db0..620a297 100644
--- a/test/command_ut.c
+++ b/test/command_ut.c
@@ -15,7 +15,7 @@ static const char test_cmd[] = "setenv list 1\n setenv list ${list}2; "
 static int do_ut_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("%s: Testing commands\n", __func__);
-	run_command("env default -f", 0);
+	run_command("env default -f -a", 0);
 
 	/* run a single command */
 	run_command("setenv single 1", 0);
@@ -58,6 +58,95 @@ static int do_ut_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		"setenv list ${list}3", strlen("setenv list 1"), 0);
 	assert(!strcmp("1", getenv("list")));
 
+#ifdef CONFIG_SYS_HUSH_PARSER
+	/* Test the 'test' command */
+
+#define HUSH_TEST(name, expr, expected_result) \
+	run_command("if test " expr " ; then " \
+			"setenv " #name "_" #expected_result " y; else " \
+			"setenv " #name "_" #expected_result " n; fi", 0); \
+	assert(!strcmp(#expected_result, getenv(#name "_" #expected_result)));
+
+	/* Basic operators */
+	HUSH_TEST(streq, "aaa = aaa", y);
+	HUSH_TEST(streq, "aaa = bbb", n);
+
+	HUSH_TEST(strneq, "aaa != bbb", y);
+	HUSH_TEST(strneq, "aaa != aaa", n);
+
+	HUSH_TEST(strlt, "aaa < bbb", y);
+	HUSH_TEST(strlt, "bbb < aaa", n);
+
+	HUSH_TEST(strgt, "bbb > aaa", y);
+	HUSH_TEST(strgt, "aaa > bbb", n);
+
+	HUSH_TEST(eq, "123 -eq 123", y);
+	HUSH_TEST(eq, "123 -eq 456", n);
+
+	HUSH_TEST(ne, "123 -ne 456", y);
+	HUSH_TEST(ne, "123 -ne 123", n);
+
+	HUSH_TEST(lt, "123 -lt 456", y);
+	HUSH_TEST(lt_eq, "123 -lt 123", n);
+	HUSH_TEST(lt, "456 -lt 123", n);
+
+	HUSH_TEST(le, "123 -le 456", y);
+	HUSH_TEST(le_eq, "123 -le 123", y);
+	HUSH_TEST(le, "456 -le 123", n);
+
+	HUSH_TEST(gt, "456 -gt 123", y);
+	HUSH_TEST(gt_eq, "123 -gt 123", n);
+	HUSH_TEST(gt, "123 -gt 456", n);
+
+	HUSH_TEST(ge, "456 -ge 123", y);
+	HUSH_TEST(ge_eq, "123 -ge 123", y);
+	HUSH_TEST(ge, "123 -ge 456", n);
+
+	HUSH_TEST(z, "-z \"\"", y);
+	HUSH_TEST(z, "-z \"aaa\"", n);
+
+	HUSH_TEST(n, "-n \"aaa\"", y);
+	HUSH_TEST(n, "-n \"\"", n);
+
+	/* Inversion of simple tests */
+	HUSH_TEST(streq_inv, "! aaa = aaa", n);
+	HUSH_TEST(streq_inv, "! aaa = bbb", y);
+
+	HUSH_TEST(streq_inv_inv, "! ! aaa = aaa", y);
+	HUSH_TEST(streq_inv_inv, "! ! aaa = bbb", n);
+
+	/* Binary operators */
+	HUSH_TEST(or_0_0, "aaa != aaa -o bbb != bbb", n);
+	HUSH_TEST(or_0_1, "aaa != aaa -o bbb = bbb", y);
+	HUSH_TEST(or_1_0, "aaa = aaa -o bbb != bbb", y);
+	HUSH_TEST(or_1_1, "aaa = aaa -o bbb = bbb", y);
+
+	HUSH_TEST(and_0_0, "aaa != aaa -a bbb != bbb", n);
+	HUSH_TEST(and_0_1, "aaa != aaa -a bbb = bbb", n);
+	HUSH_TEST(and_1_0, "aaa = aaa -a bbb != bbb", n);
+	HUSH_TEST(and_1_1, "aaa = aaa -a bbb = bbb", y);
+
+	/* Inversion within binary operators */
+	HUSH_TEST(or_0_0_inv, "! aaa != aaa -o ! bbb != bbb", y);
+	HUSH_TEST(or_0_1_inv, "! aaa != aaa -o ! bbb = bbb", y);
+	HUSH_TEST(or_1_0_inv, "! aaa = aaa -o ! bbb != bbb", y);
+	HUSH_TEST(or_1_1_inv, "! aaa = aaa -o ! bbb = bbb", n);
+
+	HUSH_TEST(or_0_0_inv_inv, "! ! aaa != aaa -o ! ! bbb != bbb", n);
+	HUSH_TEST(or_0_1_inv_inv, "! ! aaa != aaa -o ! ! bbb = bbb", y);
+	HUSH_TEST(or_1_0_inv_inv, "! ! aaa = aaa -o ! ! bbb != bbb", y);
+	HUSH_TEST(or_1_1_inv_inv, "! ! aaa = aaa -o ! ! bbb = bbb", y);
+
+#ifdef CONFIG_SANDBOX
+	/*
+	 * File existence
+	 * This assume U-Boot sandbox is run from the U-Boot build directory
+	 */
+	HUSH_TEST(e, "-e host - u-boot", y);
+	HUSH_TEST(e, "-e host - creating_this_file_breaks_uboot_unit_test", n);
+#endif
+#endif
+
 	printf("%s: Everything went swimmingly\n", __func__);
 	return 0;
 }
diff --git a/tools/.gitignore b/tools/.gitignore
index cd2f041..2a90dfe 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -6,6 +6,7 @@
 /dumpimage
 /mkenvimage
 /mkimage
+/mkexynosspl
 /mpc86x_clk
 /mxsboot
 /ncb
@@ -15,8 +16,5 @@
 /xway-swap-bytes
 /*.exe
 /easylogo/easylogo
-/env/crc32.c
-/env/fw_printenv
 /gdb/gdbcont
 /gdb/gdbsend
-/kernel-doc/docproc
diff --git a/tools/Makefile b/tools/Makefile
index 328cea3..dcd49f8 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -5,14 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-TOOLSUBDIRS = kernel-doc
-
-#
-# Include this after HOSTOS HOSTARCH check
-# so that we can act intelligently.
-#
-include $(TOPDIR)/config.mk
-
 #
 # toolchains targeting win32 generate .exe files
 #
@@ -32,6 +24,9 @@ CONFIG_NETCONSOLE = y
 CONFIG_SHA1_CHECK_UB_IMG = y
 endif
 
+subdir-$(HOST_TOOLS_ALL) += easylogo
+subdir-$(HOST_TOOLS_ALL) += gdb
+
 # Merge all the different vars for envcrc into one
 ENVCRC-$(CONFIG_ENV_IS_EMBEDDED) = y
 ENVCRC-$(CONFIG_ENV_IS_IN_DATAFLASH) = y
@@ -43,86 +38,115 @@ ENVCRC-$(CONFIG_ENV_IS_IN_NVRAM) = y
 ENVCRC-$(CONFIG_ENV_IS_IN_SPI_FLASH) = y
 CONFIG_BUILD_ENVCRC ?= $(ENVCRC-y)
 
-# Generated executable files
-BIN_FILES-$(CONFIG_LCD_LOGO) += bmp_logo$(SFX)
-BIN_FILES-$(CONFIG_VIDEO_LOGO) += bmp_logo$(SFX)
-BIN_FILES-$(CONFIG_BUILD_ENVCRC) += envcrc$(SFX)
-BIN_FILES-$(CONFIG_CMD_NET) += gen_eth_addr$(SFX)
-BIN_FILES-$(CONFIG_CMD_LOADS) += img2srec$(SFX)
-BIN_FILES-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes$(SFX)
-BIN_FILES-y += dumpimage$(SFX)
-BIN_FILES-y += mkenvimage$(SFX)
-BIN_FILES-y += mkimage$(SFX)
-BIN_FILES-$(CONFIG_EXYNOS5250) += mk$(BOARD)spl$(SFX)
-BIN_FILES-$(CONFIG_EXYNOS5420) += mk$(BOARD)spl$(SFX)
-BIN_FILES-$(CONFIG_MX23) += mxsboot$(SFX)
-BIN_FILES-$(CONFIG_MX28) += mxsboot$(SFX)
-BIN_FILES-$(CONFIG_NETCONSOLE) += ncb$(SFX)
-BIN_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
-BIN_FILES-$(CONFIG_KIRKWOOD) += kwboot$(SFX)
-BIN_FILES-y += proftool(SFX)
-BIN_FILES-$(CONFIG_STATIC_RELA) += relocate-rela$(SFX)
-
-# Source files which exist outside the tools directory
-EXT_OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += common/env_embedded.o
-EXT_OBJ_FILES-y += common/image.o
-EXT_OBJ_FILES-$(CONFIG_FIT) += common/image-fit.o
-EXT_OBJ_FILES-y += common/image-sig.o
-EXT_OBJ_FILES-y += lib/crc32.o
-EXT_OBJ_FILES-y += lib/md5.o
-EXT_OBJ_FILES-y += lib/sha1.o
-
-# Source files located in the tools directory
-NOPED_OBJ_FILES-y += aisimage.o
-NOPED_OBJ_FILES-y += default_image.o
-NOPED_OBJ_FILES-y += dumpimage.o
-NOPED_OBJ_FILES-y += fit_image.o
-NOPED_OBJ_FILES-y += image-host.o
-NOPED_OBJ_FILES-y += imximage.o
-NOPED_OBJ_FILES-y += kwbimage.o
-NOPED_OBJ_FILES-y += imagetool.o
-NOPED_OBJ_FILES-y += mkenvimage.o
-NOPED_OBJ_FILES-y += mkimage.o
-NOPED_OBJ_FILES-y += mxsimage.o
-NOPED_OBJ_FILES-y += omapimage.o
-NOPED_OBJ_FILES-y += os_support.o
-NOPED_OBJ_FILES-y += pblimage.o
-NOPED_OBJ_FILES-y += proftool.o
-NOPED_OBJ_FILES-y += ublimage.o
-NOPED_OBJ_FILES-y += relocate-rela.o
-OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += envcrc.o
-OBJ_FILES-$(CONFIG_CMD_LOADS) += img2srec.o
-OBJ_FILES-$(CONFIG_CMD_NET) += gen_eth_addr.o
-OBJ_FILES-$(CONFIG_EXYNOS_SPL) += mkexynosspl.o
-OBJ_FILES-$(CONFIG_KIRKWOOD) += kwboot.o
-OBJ_FILES-$(CONFIG_LCD_LOGO) += bmp_logo.o
-OBJ_FILES-$(CONFIG_MX23) += mxsboot.o
-OBJ_FILES-$(CONFIG_MX28) += mxsboot.o
-OBJ_FILES-$(CONFIG_NETCONSOLE) += ncb.o
-OBJ_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1.o
-OBJ_FILES-$(CONFIG_SMDK5250) += mkexynosspl.o
-OBJ_FILES-$(CONFIG_VIDEO_LOGO) += bmp_logo.o
-OBJ_FILES-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes.o
+# TODO: CONFIG_CMD_LICENSE does not work
+hostprogs-$(CONFIG_CMD_LICENSE) += bin2header$(SFX)
 
-# Don't build by default
-#ifeq ($(ARCH),ppc)
-#BIN_FILES-y += mpc86x_clk$(SFX)
-#OBJ_FILES-y += mpc86x_clk.o
-#endif
+hostprogs-$(CONFIG_LCD_LOGO) += bmp_logo$(SFX)
+hostprogs-$(CONFIG_VIDEO_LOGO) += bmp_logo$(SFX)
+HOSTCFLAGS_bmp_logo$(SFX).o := -pedantic
+
+hostprogs-$(CONFIG_BUILD_ENVCRC) += envcrc$(SFX)
+envcrc$(SFX)-objs := crc32.o env_embedded.o envcrc.o sha1.o
 
+hostprogs-$(CONFIG_CMD_NET) += gen_eth_addr$(SFX)
+HOSTCFLAGS_gen_eth_addr$(SFX).o := -pedantic
+
+hostprogs-$(CONFIG_CMD_LOADS) += img2srec$(SFX)
+HOSTCFLAGS_img2srec$(SFX).o := -pedantic
+
+hostprogs-$(CONFIG_XWAY_SWAP_BYTES) += xway-swap-bytes$(SFX)
+HOSTCFLAGS_xway-swap-bytes$(SFX).o := -pedantic
+
+hostprogs-y += mkenvimage$(SFX)
+mkenvimage$(SFX)-objs := crc32.o mkenvimage.o os_support.o
+
+hostprogs-y += dumpimage$(SFX) mkimage$(SFX)
+
+FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := image-sig.o
 # Flattened device tree objects
-LIBFDT_OBJ_FILES-y += fdt.o
-LIBFDT_OBJ_FILES-y += fdt_ro.o
-LIBFDT_OBJ_FILES-y += fdt_rw.o
-LIBFDT_OBJ_FILES-y += fdt_strerror.o
-LIBFDT_OBJ_FILES-y += fdt_wip.o
+LIBFDT_OBJS := fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_wip.o
+RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := rsa-sign.o
+
+# common objs for dumpimage and mkimage
+dumpimage-mkimage-objs := aisimage.o \
+			$(FIT_SIG_OBJS-y) \
+			crc32.o \
+			default_image.o \
+			fit_image.o \
+			image-fit.o \
+			image-host.o \
+			image.o \
+			imagetool.o \
+			imximage.o \
+			kwbimage.o \
+			md5.o \
+			mxsimage.o \
+			omapimage.o \
+			os_support.o \
+			pblimage.o \
+			sha1.o \
+			ublimage.o \
+			$(LIBFDT_OBJS) \
+			$(RSA_OBJS-y)
+
+dumpimage$(SFX)-objs := $(dumpimage-mkimage-objs) dumpimage.o
+mkimage$(SFX)-objs   := $(dumpimage-mkimage-objs) mkimage.o
+
+# TODO(sjg@chromium.org): Is this correct on Mac OS?
+
+# MXSImage needs LibSSL
+ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
+HOSTLOADLIBES_dumpimage$(SFX) := -lssl -lcrypto
+HOSTLOADLIBES_mkimage$(SFX) := -lssl -lcrypto
+# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
+# the mxsimage support within tools/mxsimage.c .
+HOSTCFLAGS_mxsimage.o += -DCONFIG_MXS
+endif
+
+ifdef CONFIG_FIT_SIGNATURE
+HOSTLOADLIBES_dumpimage$(SFX) := -lssl -lcrypto
+HOSTLOADLIBES_mkimage$(SFX) := -lssl -lcrypto
+
+# This affects include/image.h, but including the board config file
+# is tricky, so manually define this options here.
+HOST_EXTRACFLAGS	+= -DCONFIG_FIT_SIGNATURE
+endif
+
+hostprogs-$(CONFIG_EXYNOS5250) += mkexynosspl$(SFX)
+hostprogs-$(CONFIG_EXYNOS5420) += mkexynosspl$(SFX)
+HOSTCFLAGS_mkexynosspl$(SFX).o := -pedantic
+
+hostprogs-$(CONFIG_MX23) += mxsboot$(SFX)
+hostprogs-$(CONFIG_MX28) += mxsboot$(SFX)
+HOSTCFLAGS_mxsboot$(SFX).o := -pedantic
+
+hostprogs-$(CONFIG_NETCONSOLE) += ncb$(SFX)
+hostprogs-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
+
+ubsha1$(SFX)-objs := os_support.o sha1.o ubsha1.o
+
+HOSTCFLAGS_ubsha1.o := -pedantic
+
+hostprogs-$(CONFIG_KIRKWOOD) += kwboot$(SFX)
+hostprogs-y += proftool$(SFX)
+hostprogs-$(CONFIG_STATIC_RELA) += relocate-rela$(SFX)
 
-# RSA objects
-RSA_OBJ_FILES-$(CONFIG_FIT_SIGNATURE) += rsa-sign.o
+# We build some files with extra pedantic flags to try to minimize things
+# that won't build on some weird host compiler -- though there are lots of
+# exceptions for files that aren't complaint.
+HOSTCFLAGS_crc32.o := -pedantic
+HOSTCFLAGS_md5.o := -pedantic
+HOSTCFLAGS_sha1.o := -pedantic
+
+# Don't build by default
+#hostprogs-$(CONFIG_PPC) += mpc86x_clk$(SFX)
+#HOSTCFLAGS_mpc86x_clk$(SFX).o := -pedantic
+
+always := $(hostprogs-y)
 
 # Generated LCD/video logo
-LOGO_H = $(OBJTREE)/include/bmp_logo.h
-LOGO_DATA_H = $(OBJTREE)/include/bmp_logo_data.h
+LOGO_H = $(objtree)/include/bmp_logo.h
+LOGO_DATA_H = $(objtree)/include/bmp_logo_data.h
 LOGO-$(CONFIG_LCD_LOGO) += $(LOGO_H)
 LOGO-$(CONFIG_LCD_LOGO) += $(LOGO_DATA_H)
 LOGO-$(CONFIG_VIDEO_LOGO) += $(LOGO_H)
@@ -130,197 +154,40 @@ LOGO-$(CONFIG_VIDEO_LOGO) += $(LOGO_DATA_H)
 
 # Generic logo
 ifeq ($(LOGO_BMP),)
-LOGO_BMP= logos/denx.bmp
+LOGO_BMP= $(srctree)/$(src)/logos/denx.bmp
 
 # Use board logo and fallback to vendor
 ifneq ($(wildcard logos/$(BOARD).bmp),)
-LOGO_BMP= logos/$(BOARD).bmp
+LOGO_BMP= $(srctree)/$(src)/logos/$(BOARD).bmp
 else
 ifneq ($(wildcard logos/$(VENDOR).bmp),)
-LOGO_BMP= logos/$(VENDOR).bmp
+LOGO_BMP= $(srctree)/$(src)/logos/$(VENDOR).bmp
 endif
 endif
 
 endif # !LOGO_BMP
 
-# now $(obj) is defined
-HOSTSRCS += $(addprefix $(SRCTREE)/,$(EXT_OBJ_FILES-y:.o=.c))
-HOSTSRCS += $(addprefix $(SRCTREE)/tools/,$(OBJ_FILES-y:.o=.c))
-HOSTSRCS += $(addprefix $(SRCTREE)/lib/libfdt/,$(LIBFDT_OBJ_FILES-y:.o=.c))
-HOSTSRCS += $(addprefix $(SRCTREE)/lib/rsa/,$(RSA_OBJ_FILES-y:.o=.c))
-BINS	:= $(addprefix $(obj),$(sort $(BIN_FILES-y)))
-LIBFDT_OBJS	:= $(addprefix $(obj),$(LIBFDT_OBJ_FILES-y))
-RSA_OBJS	:= $(addprefix $(obj),$(RSA_OBJ_FILES-y))
-
-# We cannot check CONFIG_FIT_SIGNATURE here since it is not set on the host
-FIT_SIG_OBJ_FILES	:= image-sig.o
-FIT_SIG_OBJS		:= $(addprefix $(obj),$(FIT_SIG_OBJ_FILES))
-
-HOSTOBJS := $(addprefix $(obj),$(OBJ_FILES-y))
-NOPEDOBJS := $(addprefix $(obj),$(NOPED_OBJ_FILES-y))
-
 #
 # Use native tools and options
 # Define __KERNEL_STRICT_NAMES to prevent typedef overlaps
 # Define _GNU_SOURCE to obtain the getline prototype from stdio.h
 #
-HOSTCPPFLAGS =	-include $(SRCTREE)/include/libfdt_env.h \
-		-idirafter $(SRCTREE)/include \
-		-idirafter $(SRCTREE)/arch/$(ARCH)/include \
-		-idirafter $(OBJTREE)/include \
-		-I $(SRCTREE)/lib/libfdt \
-		-I $(SRCTREE)/tools \
+HOST_EXTRACFLAGS += -include $(SRCTREE)/include/libfdt_env.h \
+		$(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
+		-I$(SRCTREE)/lib/libfdt \
+		-I$(SRCTREE)/tools \
 		-DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
 		-DUSE_HOSTCC \
 		-D__KERNEL_STRICT_NAMES \
 		-D_GNU_SOURCE
 
+__build:	$(LOGO-y)
 
-all:	$(obj).depend $(BINS) $(LOGO-y) subdirs
-
-$(obj)bin2header$(SFX): $(obj)bin2header.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)bmp_logo$(SFX):	$(obj)bmp_logo.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)proftool(SFX):	$(obj)proftool.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)envcrc$(SFX):	$(obj)crc32.o $(obj)env_embedded.o $(obj)envcrc.o $(obj)sha1.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-
-$(obj)gen_eth_addr$(SFX):	$(obj)gen_eth_addr.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)img2srec$(SFX):	$(obj)img2srec.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)xway-swap-bytes$(SFX):	$(obj)xway-swap-bytes.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)dumpimage$(SFX):	$(obj)aisimage.o \
-			$(FIT_SIG_OBJS) \
-			$(obj)crc32.o \
-			$(obj)default_image.o \
-			$(obj)fit_image.o \
-			$(obj)image-fit.o \
-			$(obj)image.o \
-			$(obj)image-host.o \
-			$(obj)imagetool.o \
-			$(obj)imximage.o \
-			$(obj)kwbimage.o \
-			$(obj)dumpimage.o \
-			$(obj)md5.o \
-			$(obj)mxsimage.o \
-			$(obj)omapimage.o \
-			$(obj)os_support.o \
-			$(obj)pblimage.o \
-			$(obj)sha1.o \
-			$(obj)ublimage.o \
-			$(LIBFDT_OBJS) \
-			$(RSA_OBJS)
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^ $(HOSTLIBS)
-	$(HOSTSTRIP) $@
-
-$(obj)mkenvimage$(SFX):	$(obj)crc32.o $(obj)mkenvimage.o \
-	$(obj)os_support.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)mkimage$(SFX):	$(obj)aisimage.o \
-			$(FIT_SIG_OBJS) \
-			$(obj)crc32.o \
-			$(obj)default_image.o \
-			$(obj)fit_image.o \
-			$(obj)image-fit.o \
-			$(obj)image-host.o \
-			$(obj)image.o \
-			$(obj)imagetool.o \
-			$(obj)imximage.o \
-			$(obj)kwbimage.o \
-			$(obj)md5.o \
-			$(obj)mkimage.o \
-			$(obj)mxsimage.o \
-			$(obj)omapimage.o \
-			$(obj)os_support.o \
-			$(obj)pblimage.o \
-			$(obj)sha1.o \
-			$(obj)ublimage.o \
-			$(LIBFDT_OBJS) \
-			$(RSA_OBJS)
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^ $(HOSTLIBS)
-	$(HOSTSTRIP) $@
-
-$(obj)mk$(BOARD)spl$(SFX):	$(obj)mkexynosspl.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)mpc86x_clk$(SFX):	$(obj)mpc86x_clk.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)mxsboot$(SFX):	$(obj)mxsboot.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)ncb$(SFX):	$(obj)ncb.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)ubsha1$(SFX):	$(obj)os_support.o $(obj)sha1.o $(obj)ubsha1.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-
-$(obj)kwboot$(SFX): $(obj)kwboot.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-$(obj)relocate-rela$(SFX): $(obj)relocate-rela.o
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-# Some of the tool objects need to be accessed from outside the tools directory
-$(obj)%.o: $(SRCTREE)/common/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
-
-$(obj)%.o: $(SRCTREE)/lib/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS) -c -o $@ $<
-
-$(obj)%.o: $(SRCTREE)/lib/libfdt/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
-
-$(obj)%.o: $(SRCTREE)/lib/rsa/%.c
-	$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
-
-subdirs:
-ifeq ($(TOOLSUBDIRS),)
-	@:
-else
-	@for dir in $(TOOLSUBDIRS) ; do \
-	    $(MAKE) \
-		HOSTOS=$(HOSTOS) \
-		HOSTARCH=$(HOSTARCH) \
-		-C $$dir || exit 1 ; \
-	done
-endif
-
-$(LOGO_H):	$(obj)bmp_logo $(LOGO_BMP)
-	$(obj)./bmp_logo --gen-info $(LOGO_BMP) > $@
-
-$(LOGO_DATA_H):	$(obj)bmp_logo $(LOGO_BMP)
-	$(obj)./bmp_logo --gen-data $(LOGO_BMP) > $@
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
+$(LOGO_H):	$(obj)/bmp_logo $(LOGO_BMP)
+	$(obj)/bmp_logo --gen-info $(LOGO_BMP) > $@
 
-sinclude $(obj).depend
+$(LOGO_DATA_H):	$(obj)/bmp_logo $(LOGO_BMP)
+	$(obj)/bmp_logo --gen-data $(LOGO_BMP) > $@
 
-#########################################################################
+# Let clean descend into subdirs
+subdir- += env
diff --git a/tools/crc32.c b/tools/crc32.c
new file mode 100644
index 0000000..aed7112
--- /dev/null
+++ b/tools/crc32.c
@@ -0,0 +1 @@
+#include "../lib/crc32.c"
diff --git a/tools/easylogo/Makefile b/tools/easylogo/Makefile
index d8e28b0..10aba2b 100644
--- a/tools/easylogo/Makefile
+++ b/tools/easylogo/Makefile
@@ -1,11 +1,3 @@
-include $(TOPDIR)/config.mk
+hostprogs-y := easylogo
 
-all: $(obj)easylogo
-
-$(obj)easylogo: $(SRCTREE)/tools/easylogo/easylogo.c
-	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTLDFLAGS) -o $@ $^
-
-clean:
-	rm -f $(obj)easylogo
-
-.PHONY: all clean
+always := $(hostprogs-y)
diff --git a/tools/env/.gitignore b/tools/env/.gitignore
new file mode 100644
index 0000000..804abac
--- /dev/null
+++ b/tools/env/.gitignore
@@ -0,0 +1,2 @@
+fw_printenv
+fw_printenv_unstripped
diff --git a/tools/env/Makefile b/tools/env/Makefile
index 27892f7..6ad81fd 100644
--- a/tools/env/Makefile
+++ b/tools/env/Makefile
@@ -5,39 +5,30 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-HOSTSRCS := $(SRCTREE)/lib/crc32.c  fw_env.c  fw_env_main.c
-HOSTSRCS += $(SRCTREE)/lib/ctype.c $(SRCTREE)/lib/linux_string.c
-HOSTSRCS += $(SRCTREE)/common/env_attr.c $(SRCTREE)/common/env_flags.c
-HEADERS	:= fw_env.h $(OBJTREE)/include/config.h
+# fw_printenv is supposed to run on the target system, which means it should be
+# built with cross tools. Although it may look weird, we only replace "HOSTCC"
+# with "CC" here for the maximum code reuse of scripts/Makefile.host.
+HOSTCC = $(CC)
 
 # Compile for a hosted environment on the target
-HOSTCPPFLAGS  = -idirafter $(SRCTREE)/include \
-		-idirafter $(SRCTREE)/arch/$(ARCH)/include \
-		-idirafter $(OBJTREE)/include \
+HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
 		-idirafter $(SRCTREE)/tools/env \
 		-DUSE_HOSTCC \
 		-DTEXT_BASE=$(TEXT_BASE)
 
 ifeq ($(MTD_VERSION),old)
-HOSTCPPFLAGS += -DMTD_OLD
+HOST_EXTRACFLAGS += -DMTD_OLD
 endif
 
-all:	$(obj)fw_printenv
-
-# Some files complain if compiled with -pedantic, use HOSTCFLAGS_NOPED
-$(obj)fw_printenv:	$(HOSTSRCS) $(HEADERS)
-	$(HOSTCC) $(HOSTCFLAGS_NOPED) $(HOSTLDFLAGS) -o $@ $(HOSTSRCS)
-	$(HOSTSTRIP) $@
-
-clean:
-	rm -f $(obj)fw_printenv
-
-#########################################################################
+always := fw_printenv
+hostprogs-y := fw_printenv_unstripped
 
-include $(TOPDIR)/rules.mk
+fw_printenv_unstripped-objs := fw_env.o fw_env_main.o \
+	crc32.o ctype.o linux_string.o \
+	env_attr.o env_flags.o
 
-sinclude $(obj).depend
+quiet_cmd_strip = STRIP   $@
+      cmd_strip = $(STRIP) -o $@ $<
 
-#########################################################################
+$(obj)/fw_printenv: $(obj)/fw_printenv_unstripped FORCE
+	$(call if_changed,strip)
diff --git a/tools/env/README b/tools/env/README
index 1020b57..24e31bc 100644
--- a/tools/env/README
+++ b/tools/env/README
@@ -2,11 +2,10 @@
 This is a demo implementation of a Linux command line tool to access
 the U-Boot's environment variables.
 
-In the current version, there is an issue in cross-compilation.
 In order to cross-compile fw_printenv, run
-    make HOSTCC=<your CC cross-compiler> env
+    make CROSS_COMPILE=<your cross-compiler prefix> env
 in the root directory of the U-Boot distribution. For example,
-    make HOSTCC=arm-linux-gcc env
+    make CROSS_COMPILE=arm-linux- env
 
 For the run-time utility configuration uncomment the line
 #define CONFIG_FILE  "/etc/fw_env.config"
diff --git a/tools/env/crc32.c b/tools/env/crc32.c
new file mode 100644
index 0000000..34f8178
--- /dev/null
+++ b/tools/env/crc32.c
@@ -0,0 +1 @@
+#include "../../lib/crc32.c"
diff --git a/tools/env/ctype.c b/tools/env/ctype.c
new file mode 100644
index 0000000..21050e9
--- /dev/null
+++ b/tools/env/ctype.c
@@ -0,0 +1 @@
+#include "../../lib/ctype.c"
diff --git a/tools/env/env_attr.c b/tools/env/env_attr.c
new file mode 100644
index 0000000..502d4c9
--- /dev/null
+++ b/tools/env/env_attr.c
@@ -0,0 +1 @@
+#include "../../common/env_attr.c"
diff --git a/tools/env/env_flags.c b/tools/env/env_flags.c
new file mode 100644
index 0000000..b261cb8
--- /dev/null
+++ b/tools/env/env_flags.c
@@ -0,0 +1 @@
+#include "../../common/env_flags.c"
diff --git a/tools/env/linux_string.c b/tools/env/linux_string.c
new file mode 100644
index 0000000..6c01add
--- /dev/null
+++ b/tools/env/linux_string.c
@@ -0,0 +1 @@
+#include "../../lib/linux_string.c"
diff --git a/tools/env_embedded.c b/tools/env_embedded.c
new file mode 100644
index 0000000..59a6357
--- /dev/null
+++ b/tools/env_embedded.c
@@ -0,0 +1 @@
+#include "../common/env_embedded.c"
diff --git a/tools/fdt.c b/tools/fdt.c
new file mode 100644
index 0000000..1eafc56
--- /dev/null
+++ b/tools/fdt.c
@@ -0,0 +1 @@
+#include "../lib/libfdt/fdt.c"
diff --git a/tools/fdt_ro.c b/tools/fdt_ro.c
new file mode 100644
index 0000000..9005fe3
--- /dev/null
+++ b/tools/fdt_ro.c
@@ -0,0 +1 @@
+#include "../lib/libfdt/fdt_ro.c"
diff --git a/tools/fdt_rw.c b/tools/fdt_rw.c
new file mode 100644
index 0000000..adc3fdf
--- /dev/null
+++ b/tools/fdt_rw.c
@@ -0,0 +1 @@
+#include "../lib/libfdt/fdt_rw.c"
diff --git a/tools/fdt_strerror.c b/tools/fdt_strerror.c
new file mode 100644
index 0000000..d0b5822
--- /dev/null
+++ b/tools/fdt_strerror.c
@@ -0,0 +1 @@
+#include "../lib/libfdt/fdt_strerror.c"
diff --git a/tools/fdt_wip.c b/tools/fdt_wip.c
new file mode 100644
index 0000000..7810f07
--- /dev/null
+++ b/tools/fdt_wip.c
@@ -0,0 +1 @@
+#include "../lib/libfdt/fdt_wip.c"
diff --git a/tools/gdb/Makefile b/tools/gdb/Makefile
index dd98fb6..4513320 100644
--- a/tools/gdb/Makefile
+++ b/tools/gdb/Makefile
@@ -8,49 +8,39 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-BINS	= gdbsend gdbcont
-
-COBJS	= gdbsend.o gdbcont.o error.o remote.o serial.o
-
-HOSTOBJS := $(addprefix $(obj),$(COBJS))
-HOSTSRCS := $(COBJS:.o=.c)
-BINS	:= $(addprefix $(obj),$(BINS))
+ifneq ($(HOSTOS),cygwin)
+
+# Location of a usable BFD library, where we define "usable" as
+# "built for ${HOST}, supports ${TARGET}".  Sensible values are
+# - When cross-compiling: the root of the cross-environment
+# - Linux/ppc (native): /usr
+# - NetBSD/ppc (native): you lose ... (must extract these from the
+#   binutils build directory, plus the native and U-Boot include
+#   files don't like each other)
+
+ifeq ($(HOSTOS),darwin)
+BFD_ROOT_DIR =		/usr/local/tools
+else
+ifeq ($(HOSTARCH),$(ARCH))
+# native
+BFD_ROOT_DIR =		/usr
+else
+#BFD_ROOT_DIR =		/LinuxPPC/CDK		# Linux/i386
+#BFD_ROOT_DIR =		/usr/pkg/cross		# NetBSD/i386
+BFD_ROOT_DIR =		/opt/powerpc
+endif
+endif
 
 #
 # Use native tools and options
 #
-HOSTCPPFLAGS = -I$(BFD_ROOT_DIR)/include
-
-ifeq ($(HOSTOS),cygwin)
-
-all:
-$(obj).depend:
-
-else	# ! CYGWIN
-
-all:	$(obj).depend $(BINS)
-
-$(obj)gdbsend:	$(obj)gdbsend.o $(obj)error.o $(obj)remote.o $(obj)serial.o
-		$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-
-$(obj)gdbcont:	$(obj)gdbcont.o $(obj)error.o $(obj)remote.o $(obj)serial.o
-		$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-
-clean:
-	rm -f $(HOSTOBJS)
-
-distclean:	clean
-	rm -f $(BINS) $(obj)core $(obj)*.bak $(obj).depend
-
-#########################################################################
+HOST_EXTRACFLAGS := -I$(BFD_ROOT_DIR)/include -pedantic
 
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
+hostprogs-y := gdbsend gdbcont
 
-sinclude $(obj).depend
+gdbsend-objs := gdbsend.o error.o remote.o serial.o
+gdbcont-objs := gdbcont.o error.o remote.o serial.o
 
-#########################################################################
+always := $(hostprogs-y)
 
 endif	# cygwin
diff --git a/tools/image-fit.c b/tools/image-fit.c
new file mode 100644
index 0000000..037e5cc
--- /dev/null
+++ b/tools/image-fit.c
@@ -0,0 +1 @@
+#include "../common/image-fit.c"
diff --git a/tools/image-sig.c b/tools/image-sig.c
new file mode 100644
index 0000000..e45419f
--- /dev/null
+++ b/tools/image-sig.c
@@ -0,0 +1 @@
+#include "../common/image-sig.c"
diff --git a/tools/image.c b/tools/image.c
new file mode 100644
index 0000000..0f9bacc
--- /dev/null
+++ b/tools/image.c
@@ -0,0 +1 @@
+#include "../common/image.c"
diff --git a/tools/kernel-doc/Makefile b/tools/kernel-doc/Makefile
deleted file mode 100644
index eb56e2e..0000000
--- a/tools/kernel-doc/Makefile
+++ /dev/null
@@ -1,25 +0,0 @@
-#
-# Copyright (C) 2012 Marek Vasut <marex@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-include $(TOPDIR)/config.mk
-
-all:	$(obj)docproc
-
-$(obj)docproc:	docproc.c
-	$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
-	$(HOSTSTRIP) $@
-
-clean:
-	rm -rf docproc
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/tools/md5.c b/tools/md5.c
new file mode 100644
index 0000000..befaa32
--- /dev/null
+++ b/tools/md5.c
@@ -0,0 +1 @@
+#include "../lib/md5.c"
diff --git a/tools/rsa-sign.c b/tools/rsa-sign.c
new file mode 100644
index 0000000..150bbe1
--- /dev/null
+++ b/tools/rsa-sign.c
@@ -0,0 +1 @@
+#include "../lib/rsa/rsa-sign.c"
diff --git a/tools/sha1.c b/tools/sha1.c
new file mode 100644
index 0000000..0d717df
--- /dev/null
+++ b/tools/sha1.c
@@ -0,0 +1 @@
+#include "../lib/sha1.c"
author	Albert ARIBAUD <albert.u.boot@aribaud.net>	2014-02-20 13:16:05 +0100
committer	Albert ARIBAUD <albert.u.boot@aribaud.net>	2014-02-20 13:16:05 +0100
commit	3e11350255d9c5d4bd03c2a65769da84c05d3294 (patch)
tree	2ebc3d0fa0592479020d2d9dc7228b4d15ed2eaa
parent	e7538fee991308c16f76f7eca2517089f2a30ff4 (diff)
parent	0a8e823ad0c5a602c93c2e8a54caf622ade6d3fb (diff)
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