[U-Boot] [RFC PATCH 7/7] Switch over to Kbuild

13 May 2013

This is just for testing, to show what failures exist when moving to the
Kbuild-based build system. Unfortunately due to broken out-of-tree
building, buildman just gives an error on this commit.
Signed-off-by: Simon Glass sjg@chromium.org
---
 Makefile        | 2147 +++++++++++++++++++++++++++++++++++--------------------
 Makefile.kbuild | 1521 ---------------------------------------
 Makefile.legacy |  900 +++++++++++++++++++++++
 3 files changed, 2284 insertions(+), 2284 deletions(-)
 delete mode 100644 Makefile.kbuild
 create mode 100644 Makefile.legacy

diff --git a/Makefile b/Makefile
index dbc4b70..438014a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,754 +1,915 @@
-#
-# (C) Copyright 2000-2012
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundatio; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
 VERSION = 2013
 PATCHLEVEL = 04
 SUBLEVEL =
 EXTRAVERSION =
+NAME = Uncular Umbrella
 ifneq "$(SUBLEVEL)" ""
 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 else
 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
 endif
-TIMESTAMP_FILE = $(obj)include/generated/timestamp_autogenerated.h
-VERSION_FILE = $(obj)include/generated/version_autogenerated.h
-
-HOSTARCH := $(shell uname -m | \
-	sed -e s/i.86/x86/ \
-	    -e s/sun4u/sparc64/ \
-	    -e s/arm.*/arm/ \
-	    -e s/sa110/arm/ \
-	    -e s/ppc64/powerpc/ \
-	    -e s/ppc/powerpc/ \
-	    -e s/macppc/powerpc/\
-	    -e s/sh.*/sh/)
-
-HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
-	    sed -e 's/(cygwin).*/cygwin/')
-
-export	HOSTARCH HOSTOS
-
-# Deal with colliding definitions from tcsh etc.
-VENDOR=
-#########################################################################
-# Allow for silent builds
-ifeq (,$(findstring s,$(MAKEFLAGS)))
-XECHO = echo
-else
-XECHO = :
-endif
-
-#########################################################################
-#
-# U-boot build supports producing a object files to the separate external
-# directory. Two use cases are supported:
-#
-# 1) Add O= to the make command line
-# 'make O=/tmp/build all'
+# *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.
 #
-# 2) Set environement variable BUILD_DIR to point to the desired location
-# 'export BUILD_DIR=/tmp/build'
-# 'make'
-#
-# The second approach can also be used with a MAKEALL script
-# 'export BUILD_DIR=/tmp/build'
-# './MAKEALL'
-#
-# Command line 'O=' setting overrides BUILD_DIR environent variable.
-#
-# When none of the above methods is used the local build is performed and
-# the object files are placed in the source directory.
+# 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.
-ifdef O
-ifeq ("$(origin O)", "command line")
-BUILD_DIR := $(O)
+# To put more focus on warnings, be less verbose as default
+# Use 'make V=1' to see the full commands
+
+ifeq ("$(origin V)", "command line")
+  KBUILD_VERBOSE = $(V)
 endif
+ifndef KBUILD_VERBOSE
+  KBUILD_VERBOSE = 0
 endif
# Call a source code checker (by default, "sparse") as part of the
 # C compilation.
 #
-# Use 'make C=1' to enable checking of re-compiled files.
+# Use 'make C=1' to enable checking of only re-compiled files.
+# Use 'make C=2' to enable checking of *all* source files, regardless
+# of whether they are re-compiled or not.
 #
-# See the linux kernel file "Documentation/sparse.txt" for more details,
-# including where to get the "sparse" utility.
+# See the file "Documentation/sparse.txt" for more details, including
+# where to get the "sparse" utility.
-ifdef C
 ifeq ("$(origin C)", "command line")
-CHECKSRC := $(C)
+  KBUILD_CHECKSRC = $(C)
 endif
+ifndef KBUILD_CHECKSRC
+  KBUILD_CHECKSRC = 0
 endif
-ifndef CHECKSRC
-  CHECKSRC = 0
+
+# Use make M=dir to specify directory of external module to build
+# Old syntax make ... SUBDIRS=$PWD is still supported
+# Setting the environment variable KBUILD_EXTMOD take precedence
+ifdef SUBDIRS
+  KBUILD_EXTMOD ?= $(SUBDIRS)
 endif
-export CHECKSRC
-ifneq ($(BUILD_DIR),)
-saved-output := $(BUILD_DIR)
+ifeq ("$(origin M)", "command line")
+  KBUILD_EXTMOD := $(M)
+endif
-# Attempt to create a output directory.
-$(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR})
+# 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.
-# 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),)
-OBJTREE		:= $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
-SPLTREE		:= $(OBJTREE)/spl
-SRCTREE		:= $(CURDIR)
-TOPDIR		:= $(SRCTREE)
-LNDIR		:= $(OBJTREE)
-export	TOPDIR SRCTREE OBJTREE SPLTREE
+# KBUILD_SRC is set on invocation of make in OBJ directory
+# KBUILD_SRC is not intended to be used by the regular user (for now)
+ifeq ($(KBUILD_SRC),)
-MKCONFIG	:= $(SRCTREE)/mkconfig
-export MKCONFIG
+# OK, Make called in directory where kernel src resides
+# Do we want to locate output files in a separate directory?
+ifeq ("$(origin O)", "command line")
+  KBUILD_OUTPUT := $(O)
+endif
-ifneq ($(OBJTREE),$(SRCTREE))
-REMOTE_BUILD	:= 1
-export REMOTE_BUILD
+ifeq ("$(origin W)", "command line")
+  export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
 endif
-# $(obj) and (src) are defined in config.mk but here in main Makefile
-# we also need them before config.mk is included which is the case for
-# some targets like unconfig, clean, clobber, distclean, etc.
-ifneq ($(OBJTREE),$(SRCTREE))
-obj := $(OBJTREE)/
-src := $(SRCTREE)/
+# That's our default target when none is given on the command line
+PHONY := _all
+_all:
+
+# Cancel implicit rules on top Makefile
+$(CURDIR)/Makefile Makefile: ;
+
+MKCONFIG	= $(srctree)/mkconfig
+
+ifneq ($(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
-obj :=
-src :=
+_all: modules
 endif
-export obj src
-# Make sure CDPATH settings don't interfere
-unexport CDPATH
+srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
+objtree		:= $(CURDIR)
+src		:= $(srctree)
+obj		:= $(objtree)
-#########################################################################
+VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
-# 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
-SUBDIR_EXAMPLES = examples/standalone examples/api
-SUBDIRS = $(SUBDIR_TOOLS)
+export srctree objtree VPATH
-.PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
+# We use Makefile.kbuild instead of Makefile for now. To be removed.
+MAKEFILE_NAME := $(srctree)/Makefile
-ifeq ($(obj)include/config.mk,$(wildcard $(obj)include/config.mk))
+# U-Boot's directory nanes used by old Makefiles. To be removed.
+TOPDIR := $(srctree)
+SRCTREE := $(srctree)
+OBJTREE = $(objtree)
+export SRCTREE TOPDIR OBJTREE
-# 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
+# Export U-Boot variables
+export BOARD CPU SOC VENDOR
-ifndef CONFIG_SANDBOX
-SUBDIRS += $(SUBDIR_EXAMPLES)
-endif
+TIMESTAMP_FILE = $(objtree)/include/generated/timestamp_autogenerated.h
+VERSION_FILE = $(objtree)/include/generated/version_autogenerated.h
-# load ARCH, BOARD, and CPU configuration
-include $(obj)include/config.mk
-export	ARCH CPU BOARD VENDOR SOC
+# SUBARCH tells the usermode build what the underlying arch is.  That is set
+# first, and if a usermode build is happening, the "ARCH=um" on the command
+# line overrides the setting of ARCH below.  If a native build is happening,
+# then ARCH is assigned, getting whatever value it gets normally, and
+# SUBARCH is subsequently ignored.
-# set default to nothing for native builds
-ifeq ($(HOSTARCH),$(ARCH))
-CROSS_COMPILE ?=
+SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
+				  -e s/sun4u/sparc64/ \
+				  -e s/arm.*/arm/ -e s/sa110/arm/ \
+				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
+				  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
+				  -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
+
+# Cross compiling and selecting different set of gcc/bin-utils
+# ---------------------------------------------------------------------------
+#
+# When performing cross compilation for other architectures ARCH shall be set
+# to the target architecture. (See arch/* for the possibilities).
+# ARCH can be set during invocation of make:
+# make ARCH=ia64
+# Another way is to have ARCH set in the environment.
+# The default ARCH is the host where make is executed.
+
+# CROSS_COMPILE specify the prefix used for all executables used
+# during compilation. Only gcc and related bin-utils executables
+# are prefixed with $(CROSS_COMPILE).
+# CROSS_COMPILE can be set on the command line
+# make CROSS_COMPILE=ia64-linux-
+# Alternatively CROSS_COMPILE can be set in the environment.
+# A third alternative is to store a setting in .config so that plain
+# "make" in the configured kernel build directory always uses that.
+# Default value for CROSS_COMPILE is not to prefix executables
+# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
+#ARCH		?= $(SUBARCH)
+CROSS_COMPILE	?= $(CONFIG_CROSS_COMPILE:"%"=%)
+
+# Architecture as present in compile.h
+UTS_MACHINE 	:= $(ARCH)
+SRCARCH 	:= $(ARCH)
+
+# Additional ARCH settings for x86
+ifeq ($(ARCH),i386)
+        SRCARCH := x86
+endif
+ifeq ($(ARCH),x86_64)
+        SRCARCH := x86
 endif
-# load other configuration
-include $(TOPDIR)/config.mk
+# Additional ARCH settings for sparc
+ifeq ($(ARCH),sparc32)
+       SRCARCH := sparc
+endif
+ifeq ($(ARCH),sparc64)
+       SRCARCH := sparc
+endif
-# Targets which don't build the source code
-NON_BUILD_TARGETS = backup clean clobber distclean mkproper tidy unconfig
+# Additional ARCH settings for sh
+ifeq ($(ARCH),sh64)
+       SRCARCH := sh
+endif
-# Only do the generic board check when actually building, not configuring
-ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
-ifeq ($(findstring _config,$(MAKECMDGOALS)),)
-$(CHECK_GENERIC_BOARD)
+# Additional ARCH settings for tile
+ifeq ($(ARCH),tilepro)
+       SRCARCH := tile
 endif
+ifeq ($(ARCH),tilegx)
+       SRCARCH := tile
 endif
-# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
-# that (or fail if absent).  Otherwise, search for a linker script in a
-# standard location.
+# Where to locate arch specific headers
+hdr-arch  := $(SRCARCH)
-LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
+KCONFIG_CONFIG	?= .config
+export KCONFIG_CONFIG
-ifndef LDSCRIPT
-	#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
-	ifdef CONFIG_SYS_LDSCRIPT
-		# need to strip off double quotes
-		LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT))
-	endif
-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)
-# If there is no specified link script, we look in a number of places for it
-ifndef LDSCRIPT
-	ifeq ($(CONFIG_NAND_U_BOOT),y)
-		LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
-		ifeq ($(wildcard $(LDSCRIPT)),)
-			LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
-		endif
-	endif
-	ifeq ($(wildcard $(LDSCRIPT)),)
-		LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
-	endif
-	ifeq ($(wildcard $(LDSCRIPT)),)
-		LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
-	endif
-	ifeq ($(wildcard $(LDSCRIPT)),)
-		LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
-		# We don't expect a Makefile here
-		LDSCRIPT_MAKEFILE_DIR =
-	endif
-	ifeq ($(wildcard $(LDSCRIPT)),)
-$(error could not find linker script)
-	endif
+HOSTCC       = gcc
+HOSTCXX      = g++
+HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
+HOSTCXXFLAGS = -O2
+
+# 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
-#########################################################################
-# U-Boot objects....order is important (i.e. start must be first)
+#	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
-OBJS  = $(CPUDIR)/start.o
-ifeq ($(CPU),ppc4xx)
-OBJS += $(CPUDIR)/resetvec.o
+ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
+  KBUILD_MODULES := 1
 endif
-ifeq ($(CPU),mpc85xx)
-OBJS += $(CPUDIR)/resetvec.o
+
+ifeq ($(MAKECMDGOALS),)
+  KBUILD_MODULES := 1
 endif
-OBJS := $(addprefix $(obj),$(OBJS))
+# But for now at least, U-Boot does not have modules
+KBUILD_MODULES :=
-HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
+export KBUILD_MODULES KBUILD_BUILTIN
+export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
-LIBS-y += lib/libgeneric.o
-LIBS-y += lib/lzma/liblzma.o
-LIBS-y += lib/lzo/liblzo.o
-LIBS-y += lib/zlib/libz.o
-LIBS-$(CONFIG_TIZEN) += lib/tizen/libtizen.o
-LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
-LIBS-y += $(CPUDIR)/lib$(CPU).o
-ifdef SOC
-LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
-endif
-ifeq ($(CPU),ixp)
-LIBS-y += drivers/net/npe/libnpe.o
-endif
-LIBS-$(CONFIG_OF_EMBED) += dts/libdts.o
-LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
-LIBS-y += fs/libfs.o \
-	fs/cbfs/libcbfs.o \
-	fs/cramfs/libcramfs.o \
-	fs/ext4/libext4fs.o \
-	fs/fat/libfat.o \
-	fs/fdos/libfdos.o \
-	fs/jffs2/libjffs2.o \
-	fs/reiserfs/libreiserfs.o \
-	fs/sandbox/libsandboxfs.o \
-	fs/ubifs/libubifs.o \
-	fs/yaffs2/libyaffs2.o \
-	fs/zfs/libzfs.o
-LIBS-y += net/libnet.o
-LIBS-y += disk/libdisk.o
-LIBS-y += drivers/bios_emulator/libatibiosemu.o
-LIBS-y += drivers/block/libblock.o
-LIBS-$(CONFIG_BOOTCOUNT_LIMIT) += drivers/bootcount/libbootcount.o
-LIBS-y += drivers/crypto/libcrypto.o
-LIBS-y += drivers/dma/libdma.o
-LIBS-y += drivers/fpga/libfpga.o
-LIBS-y += drivers/gpio/libgpio.o
-LIBS-y += drivers/hwmon/libhwmon.o
-LIBS-y += drivers/i2c/libi2c.o
-LIBS-y += drivers/input/libinput.o
-LIBS-y += drivers/misc/libmisc.o
-LIBS-y += drivers/mmc/libmmc.o
-LIBS-y += drivers/mtd/libmtd.o
-LIBS-y += drivers/mtd/nand/libnand.o
-LIBS-y += drivers/mtd/onenand/libonenand.o
-LIBS-y += drivers/mtd/ubi/libubi.o
-LIBS-y += drivers/mtd/spi/libspi_flash.o
-LIBS-y += drivers/net/libnet.o
-LIBS-y += drivers/net/phy/libphy.o
-LIBS-y += drivers/pci/libpci.o
-LIBS-y += drivers/pcmcia/libpcmcia.o
-LIBS-y += drivers/power/libpower.o \
-	drivers/power/fuel_gauge/libfuel_gauge.o \
-	drivers/power/pmic/libpmic.o \
-	drivers/power/battery/libbattery.o
-LIBS-y += drivers/spi/libspi.o
-LIBS-y += drivers/dfu/libdfu.o
-ifeq ($(CPU),mpc83xx)
-LIBS-y += drivers/qe/libqe.o
-LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
-LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
-endif
-ifeq ($(CPU),mpc85xx)
-LIBS-y += drivers/qe/libqe.o
-LIBS-y += drivers/net/fm/libfm.o
-LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
-LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
-endif
-ifeq ($(CPU),mpc86xx)
-LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
-LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
-endif
-LIBS-y += drivers/rtc/librtc.o
-LIBS-y += drivers/serial/libserial.o
-LIBS-y += drivers/sound/libsound.o
-LIBS-y += drivers/tpm/libtpm.o
-LIBS-y += drivers/twserial/libtws.o
-LIBS-y += drivers/usb/eth/libusb_eth.o
-LIBS-y += drivers/usb/gadget/libusb_gadget.o
-LIBS-y += drivers/usb/host/libusb_host.o
-LIBS-y += drivers/usb/musb/libusb_musb.o
-LIBS-y += drivers/usb/musb-new/libusb_musb-new.o
-LIBS-y += drivers/usb/phy/libusb_phy.o
-LIBS-y += drivers/usb/ulpi/libusb_ulpi.o
-LIBS-y += drivers/video/libvideo.o
-LIBS-y += drivers/watchdog/libwatchdog.o
-LIBS-y += common/libcommon.o
-LIBS-y += lib/libfdt/libfdt.o
-LIBS-y += api/libapi.o
-LIBS-y += post/libpost.o
-LIBS-y += test/libtest.o
-
-ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TI814X),)
-LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
-endif
-
-ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
-LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
-endif
-
-ifeq ($(SOC),s5pc1xx)
-LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
-endif
-ifeq ($(SOC),exynos)
-LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
-endif
-ifneq ($(CONFIG_TEGRA),)
-LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
-LIBS-y += arch/$(ARCH)/cpu/tegra-common/libcputegra-common.o
-LIBS-y += $(CPUDIR)/tegra-common/libtegra-common.o
-endif
-
-LIBS := $(addprefix $(obj),$(sort $(LIBS-y)))
-.PHONY : $(LIBS)
-
-LIBBOARD = board/$(BOARDDIR)/lib$(BOARD).o
-LIBBOARD := $(addprefix $(obj),$(LIBBOARD))
-
-# Add GCC lib
-ifdef USE_PRIVATE_LIBGCC
-ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
-PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
-else
-PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
-endif
-else
-PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
-endif
-PLATFORM_LIBS += $(PLATFORM_LIBGCC)
-export PLATFORM_LIBS
-
-# Special flags for CPP when processing the linker script.
-# Pass the version down so we can handle backwards compatibility
-# on the fly.
-LDPPFLAGS += \
-	-include $(TOPDIR)/include/u-boot/u-boot.lds.h \
-	-DCPUDIR=$(CPUDIR) \
-	$(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)) $(subst $(obj),,$(LIBBOARD))
-
-#########################################################################
-#########################################################################
-
-ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
-BOARD_SIZE_CHECK = \
-	@actual=`wc -c $@ | awk '{print $$1}'`; \
-	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
-	if test $$actual -gt $$limit; then \
-		echo "$@ exceeds file size limit:" >&2 ; \
-		echo "  limit:  $$limit bytes" >&2 ; \
-		echo "  actual: $$actual bytes" >&2 ; \
-		echo "  excess: $$((actual - limit)) bytes" >&2; \
-		exit 1; \
-	fi
+# 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.
+#
+#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
+#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
+#
+# 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.
+#
+# A simple variant is to prefix commands with $(Q) - that's useful
+# for commands that shall be hidden in non-verbose mode.
+#
+#	$(Q)ln $@ :<
+#
+# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
+# If KBUILD_VERBOSE equals 1 then the above command is displayed.
+
+ifeq ($(KBUILD_VERBOSE),1)
+  quiet =
+  Q =
 else
-BOARD_SIZE_CHECK =
+  quiet=quiet_
+  Q = @
 endif
-# Always append ALL so that arch config.mk's can add custom ones
-ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
+# If the user is running make -s (silent mode), suppress echoing of
+# commands
-ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin
-ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
-ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
-ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
-ifneq ($(CONFIG_SPL_TARGET),)
-ALL-$(CONFIG_SPL) += $(obj)$(subst ",,$(CONFIG_SPL_TARGET))
+ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
+  quiet=silent_
 endif
-# enable combined SPL/u-boot/dtb rules for tegra
-ifneq ($(CONFIG_TEGRA),)
-ifeq ($(CONFIG_OF_SEPARATE),y)
-ALL-y += $(obj)u-boot-dtb-tegra.bin
-else
-ALL-y += $(obj)u-boot-nodtb-tegra.bin
+export quiet Q KBUILD_VERBOSE
+
+
+# Look for make include files relative to root of kernel src
+MAKEFLAGS += --include-dir=$(srctree)
+
+# We need some generic definitions (do not try to remake the file).
+$(srctree)/scripts/Kbuild.include: ;
+include $(srctree)/scripts/Kbuild.include
+
+# Make variables (CC, etc...)
+
+AS		= $(CROSS_COMPILE)as
+LD		= $(CROSS_COMPILE)ld
+CC		= $(CROSS_COMPILE)gcc
+CPP		= $(CC) -E
+AR		= $(CROSS_COMPILE)ar
+NM		= $(CROSS_COMPILE)nm
+STRIP		= $(CROSS_COMPILE)strip
+OBJCOPY		= $(CROSS_COMPILE)objcopy
+OBJDUMP		= $(CROSS_COMPILE)objdump
+AWK		= awk
+GENKSYMS	= scripts/genksyms/genksyms
+INSTALLKERNEL  := installkernel
+DEPMOD		= /sbin/depmod
+PERL		= perl
+CHECK		= sparse
+
+CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
+		  -Wbitwise -Wno-return-void $(CF)
+CFLAGS_MODULE   =
+AFLAGS_MODULE   =
+LDFLAGS_MODULE  =
+CFLAGS_KERNEL	=
+AFLAGS_KERNEL	=
+CFLAGS_GCOV	= -fprofile-arcs -ftest-coverage
+
+
+# Use USERINCLUDE when you must reference the UAPI directories only.
+USERINCLUDE    := \
+		-I$(srctree)/arch/$(hdr-arch)/include/uapi \
+		-Iarch/$(hdr-arch)/include/generated/uapi \
+		-I$(srctree)/include/uapi \
+		-Iinclude/generated/uapi \
+                -include $(srctree)/include/linux/kconfig.h
+
+# Use LINUXINCLUDE when you must reference the include/ directory.
+# Needed to be compatible with the O= option
+LINUXINCLUDE    := \
+		-I$(srctree)/arch/$(hdr-arch)/include \
+		-Iarch/$(hdr-arch)/include/generated \
+		$(if $(KBUILD_SRC), -I$(srctree)/include) \
+		-Iinclude \
+		$(USERINCLUDE)
+
+KBUILD_CPPFLAGS := -D__KERNEL__
+
+gccincdir := $(shell $(CC) -print-file-name=include)
+
+KBUILD_CFLAGS   := -Wall -Wstrict-prototypes -Wno-trigraphs \
+		   -fno-strict-aliasing -fno-common \
+		   -Werror-implicit-function-declaration \
+		   -Wno-format-security \
+		   -fno-delete-null-pointer-checks \
+		   -fno-builtin -ffreestanding
+KBUILD_AFLAGS_KERNEL :=
+KBUILD_CFLAGS_KERNEL :=
+KBUILD_AFLAGS   := -D__ASSEMBLY__
+KBUILD_AFLAGS_MODULE  := -DMODULE
+KBUILD_CFLAGS_MODULE  := -DMODULE
+KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
+
+# Read KERNELRELEASE from include/config/kernel.release (if it exists)
+KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
+KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
+
+export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
+export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
+export CPP AR NM STRIP OBJCOPY OBJDUMP
+export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
+export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
+
+export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
+export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
+export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
+export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
+export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
+export KBUILD_ARFLAGS
+
+# 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
+
+# Support for using generic headers in asm-generic
+PHONY += asm-generic
+asm-generic:
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
+	            src=asm obj=arch/$(SRCARCH)/include/generated/asm
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
+	            src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
+
+# 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).
+
+version_h := include/generated/uapi/linux/version.h
+
+no-dot-config-targets := clean mrproper distclean \
+			 cscope gtags TAGS tags help %docs check% coccicheck \
+			 $(version_h) headers_% archheaders archscripts \
+			 kernelversion %src-pkg
+
+config-targets := 0
+mixed-targets  := 0
+dot-config     := 1
+
+ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
+	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
+		dot-config := 0
+	endif
 endif
-all:		$(ALL-y) $(SUBDIR_EXAMPLES)
+ifeq ($(KBUILD_EXTMOD),)
+        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
+                config-targets := 1
+                ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
+                        mixed-targets := 1
+                endif
+        endif
+endif
-$(obj)u-boot.dtb:	$(obj)u-boot
-		$(MAKE) -C dts binary
-		mv $(obj)dts/dt.dtb $@
+ifeq ($(mixed-targets),1)
+# ===========================================================================
+# We're called with mixed targets (*config and build targets).
+# Handle them one by one.
-$(obj)u-boot-dtb.bin:	$(obj)u-boot.bin $(obj)u-boot.dtb
-		cat $^ >$@
+%:: FORCE
+	$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
-$(obj)u-boot.hex:	$(obj)u-boot
-		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
+else
+ifeq ($(config-targets),1)
+# ===========================================================================
+# *config targets only - make sure prerequisites are updated, and descend
+# in scripts/kconfig to make the *config target
+
+# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
+# KBUILD_DEFCONFIG may point out an alternative default configuration
+# used for 'make defconfig'arch/$(SRCARCH)/config.mk
+# include $(srctree)/arch/$(SRCARCH)/Makefile
+export KBUILD_DEFCONFIG KBUILD_KCONFIG
+
+config: scripts_basic outputmakefile FORCE
+	$(Q)mkdir -p include/linux include/config
+	$(Q)$(MAKE) $(build)=scripts/kconfig $@
+
+%_config: scripts_basic outputmakefile FORCE
+	$(Q)$(MKCONFIG) -A $(@:_config=)
+	$(Q)mkdir -p include/linux include/config
+	$(Q)$(MAKE) $(build)=scripts/kconfig $@
+	$(Q)rm -f $(objtree)/include/config/autoconf.mk.dep \
+		$(objtree)/include/config/autoconf.mk
+	$(Q)$(MAKE) -f scripts/Makefile.autoconf
+
+%config: scripts_basic outputmakefile FORCE
+	$(Q)mkdir -p include/linux include/config
+	$(Q)$(MAKE) $(build)=scripts/kconfig $@
-$(obj)u-boot.srec:	$(obj)u-boot
-		$(OBJCOPY) -O srec $< $@
+else
+# ===========================================================================
+# Build targets only - this includes vmlinux, arch specific targets, clean
+# targets and others. In general all targets except *config targets.
-$(obj)u-boot.bin:	$(obj)u-boot
-		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
-		$(BOARD_SIZE_CHECK)
+SRCARCH = $(ARCH)
+include $(objtree)/include/config.mk
+include $(srctree)/arch/$(SRCARCH)/config.mk
+#include $(objtree)/include/config/autoconf.mk
-$(obj)u-boot.ldr:	$(obj)u-boot
-		$(CREATE_LDR_ENV)
-		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
-		$(BOARD_SIZE_CHECK)
+KBUILD_CFLAGS += $(PLATFORM_CPPFLAGS)
-$(obj)u-boot.ldr.hex:	$(obj)u-boot.ldr
-		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
+ifeq ($(KBUILD_EXTMOD),)
+# Additional helpers built in scripts/
+# Carefully list dependencies so we do not try to build scripts twice
+# in parallel
+PHONY += scripts
+scripts: scripts_basic include/config/auto.conf include/config/tristate.conf
+	$(Q)$(MAKE) $(build)=$(@)
-$(obj)u-boot.ldr.srec:	$(obj)u-boot.ldr
-		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
+HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
-#
-# U-Boot entry point, needed for booting of full-blown U-Boot
-# from the SPL U-Boot version.
-#
-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 \
-		-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) -C $(SRCTREE)/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 \
-		-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
-
-$(obj)u-boot.pbl:	$(obj)u-boot.bin
-		$(obj)tools/mkimage -n $(CONFIG_PBLRCW_CONFIG) \
-		-R $(CONFIG_PBLPBI_CONFIG) -T pblimage \
-		-d $< $@
-
-$(obj)u-boot.sha1:	$(obj)u-boot.bin
-		$(obj)tools/ubsha1 $(obj)u-boot.bin
-
-$(obj)u-boot.dis:	$(obj)u-boot
-		$(OBJDUMP) -d $< > $@
-
-
-
-$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
-		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO) \
-			-I binary -O binary $< $(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
-
-$(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
-		$(MAKE) -C $(SRCTREE)/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) -C $(SRCTREE)/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
-
-$(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") \
-			-T aisimage \
-			-e $(CONFIG_SPL_TEXT_BASE) \
-			-d $(obj)spl/u-boot-spl.bin \
-			$(obj)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
-
-# Specify the target for use in elftosb call
-ELFTOSB_TARGET-$(CONFIG_MX23) = imx23
-ELFTOSB_TARGET-$(CONFIG_MX28) = imx28
-
-$(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
-		elftosb -zf $(ELFTOSB_TARGET-y) -c $(TOPDIR)/$(CPUDIR)/$(SOC)/u-boot-$(ELFTOSB_TARGET-y).bd \
-			-o $(obj)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
-# bootloader can check its integrity. Padding needs to be done to the
-# 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 \
-		-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
-		-d $(obj)spl/u-boot-spl.bin $(obj)spl/u-boot-spl.img
-		tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_SPL_PAD_TO) \
-			of=$(obj)spl/u-boot-spl-pad.img 2>/dev/null
-		dd if=$(obj)spl/u-boot-spl.img of=$(obj)spl/u-boot-spl-pad.img \
-			conv=notrunc 2>/dev/null
-		cat $(obj)spl/u-boot-spl-pad.img $(obj)u-boot.img > $@
-
-ifneq ($(CONFIG_TEGRA),)
-ifeq ($(CONFIG_OF_SEPARATE),y)
-nodtb=dtb
-dtbfile=$(obj)u-boot.dtb
+# Objects we will link into vmlinux / subdirs we need to visit
+arch-y		:= arch/$(SRCARCH)/
+board-y		:= board/$(VENDOR)/$(BOARD)/
+board-$(HAVE_VENDOR_COMMON_LIB)	+= board/$(VENDOR)/common/
+core-y		:= common/
+disk-y		:= disk/
+drivers-y	:= drivers/
+fs-y		:= fs/
+init-y		:= init/
+libs-y		:= lib/
+net-y		:= net/
+spl-y		:= spl/
+endif # KBUILD_EXTMOD
+
+ifeq ($(dot-config),1)
+# Read in config
+-include include/config/auto.conf
+-include $(objtree)/include/config/autoconf.mk
+# -include $(srctree)/arch/$(SRCARCH)/config.mk
+
+ifeq ($(KBUILD_EXTMOD),)
+# Read in dependencies to all Kconfig* files, make sure to run
+# oldconfig if changes are detected.
+-include include/config/auto.conf.cmd
+
+# To avoid any implicit rule to kick in, define an empty command
+$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
+
+# If .config is newer than include/config/auto.conf, someone tinkered
+# with it and forgot to run make oldconfig.
+# if auto.conf.cmd is missing then we are probably in a cleaned tree so
+# we execute the config step to be sure to catch updated Kconfig files
+include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
+	$(warning check $@ missing $^)
+	$(Q)$(MAKE) -f $(MAKEFILE_NAME) silentoldconfig
 else
-nodtb=nodtb
-dtbfile=
-endif
-
-$(obj)u-boot-$(nodtb)-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin $(dtbfile)
-		$(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 $(dtbfile) > $@
-		rm $(obj)spl/u-boot-spl-pad.bin
-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 > $@
-
-# 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
-		tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_UBOOT_PAD_TO) \
-			of=$(obj)u-boot-pad.img 2>/dev/null
-		dd if=$(obj)u-boot.img of=$(obj)u-boot-pad.img \
-			conv=notrunc 2>/dev/null
-		cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@
-
-ifeq ($(CONFIG_SANDBOX),y)
-GEN_UBOOT = \
-		cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
-			-Wl,--start-group $(__LIBS) -Wl,--end-group \
-			$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
+# external modules needs include/generated/autoconf.h and include/config/auto.conf
+# but do not care if they are up-to-date. Use auto.conf to trigger the test
+PHONY += include/config/auto.conf
+
+include/config/auto.conf:
+	$(Q)test -e include/generated/autoconf.h -a -e $@ || (		\
+	echo >&2;							\
+	echo >&2 "  ERROR: Kernel configuration is invalid.";		\
+	echo >&2 "         include/generated/autoconf.h or $@ are missing.";\
+	echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";	\
+	echo >&2 ;							\
+	/bin/false)
+
+endif # KBUILD_EXTMOD
+
 else
-GEN_UBOOT = \
-		cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
-			$(__OBJS) \
-			--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-			-Map u-boot.map -o u-boot
+# Dummy target needed, because used as prerequisite
+include/config/auto.conf: ;
+endif # $(dot-config)
+
+# The all: target is the default when no target is given on the
+# command line.
+# This allow a user to issue only 'make' to build a kernel including modules
+# Defaults to vmlinux, but the arch makefile usually adds further targets
+all: vmlinux
+
+ifdef CONFIG_SPL
+all: spl/u-boot
 endif
-$(obj)u-boot:	depend \
-		$(SUBDIR_TOOLS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds
-		$(GEN_UBOOT)
-ifeq ($(CONFIG_KALLSYMS),y)
-		smap=`$(call SYSTEM_MAP,$(obj)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
+ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+KBUILD_CFLAGS	+= -Os
+else
+KBUILD_CFLAGS	+= -O2
 endif
-$(OBJS):	depend
-		$(MAKE) -C $(CPUDIR) $(if $(REMOTE_BUILD),$@,$(notdir $@))
+#include $(srctree)/arch/$(SRCARCH)/Makefile
-$(LIBS):	depend $(SUBDIR_TOOLS)
-		$(MAKE) -C $(dir $(subst $(obj),,$@))
+ifdef CONFIG_READABLE_ASM
+# Disable optimizations that make assembler listings hard to read.
+# reorder blocks reorders the control in the function
+# ipa clone creates specialized cloned functions
+# partial inlining inlines only parts of functions
+KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
+                 $(call cc-option,-fno-ipa-cp-clone,) \
+                 $(call cc-option,-fno-partial-inlining)
+endif
-$(LIBBOARD):	depend $(LIBS)
-		$(MAKE) -C $(dir $(subst $(obj),,$@))
+ifneq ($(CONFIG_FRAME_WARN),0)
+KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
+endif
-$(SUBDIRS):	depend
-		$(MAKE) -C $@ all
+# Force gcc to behave correct even for buggy distributions
+ifndef CONFIG_CC_STACKPROTECTOR
+KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
+endif
-$(SUBDIR_EXAMPLES): $(obj)u-boot
+# This warning generated too much noise in a regular build.
+# Use make W=1 to enable this warning (see scripts/Makefile.build)
+KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
-$(LDSCRIPT):	depend
-		$(MAKE) -C $(dir $@) $(notdir $@)
+ifdef CONFIG_FRAME_POINTER
+KBUILD_CFLAGS	+= -fno-omit-frame-pointer -fno-optimize-sibling-calls
+else
+# Some targets (ARM with Thumb2, for example), can't be built with frame
+# pointers.  For those, we don't have FUNCTION_TRACER automatically
+# select FRAME_POINTER.  However, FUNCTION_TRACER adds -pg, and this is
+# incompatible with -fomit-frame-pointer with current GCC, so we don't use
+# -fomit-frame-pointer with FUNCTION_TRACER.
+ifndef CONFIG_FUNCTION_TRACER
+KBUILD_CFLAGS	+= -fomit-frame-pointer
+endif
+endif
-$(obj)u-boot.lds: $(LDSCRIPT)
-		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
+ifdef CONFIG_DEBUG_INFO
+KBUILD_CFLAGS	+= -g
+KBUILD_AFLAGS	+= -gdwarf-2
+endif
-nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
-		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
+ifdef CONFIG_DEBUG_INFO_REDUCED
+KBUILD_CFLAGS 	+= $(call cc-option, -femit-struct-debug-baseonly)
+endif
-$(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
+ifdef CONFIG_FUNCTION_TRACER
+ifdef CONFIG_HAVE_FENTRY
+CC_USING_FENTRY	:= $(call cc-option, -mfentry -DCC_USING_FENTRY)
+endif
+KBUILD_CFLAGS	+= -pg $(CC_USING_FENTRY)
+KBUILD_AFLAGS	+= $(CC_USING_FENTRY)
+ifdef CONFIG_DYNAMIC_FTRACE
+	ifdef CONFIG_HAVE_C_RECORDMCOUNT
+		BUILD_C_RECORDMCOUNT := y
+		export BUILD_C_RECORDMCOUNT
+	endif
+endif
+endif
-$(obj)spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
-		$(MAKE) -C spl all
+# We trigger additional mismatches with less inlining
+ifdef CONFIG_DEBUG_SECTION_MISMATCH
+KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
+endif
-updater:
-		$(MAKE) -C tools/updater all
+# arch Makefile may override CC so keep this after arch Makefile is included
+NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+CHECKFLAGS     += $(NOSTDINC_FLAGS)
-# 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/autoconf.mk \
-		$(obj)include/generated/generic-asm-offsets.h \
-		$(obj)include/generated/asm-offsets.h
-		for dir in $(SUBDIRS) $(CPUDIR) $(LDSCRIPT_MAKEFILE_DIR) ; do \
-			$(MAKE) -C $$dir _depend ; done
+# warn about C99 declaration after statement
+KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
-TAG_SUBDIRS = $(SUBDIRS)
-TAG_SUBDIRS += $(dir $(__LIBS))
-TAG_SUBDIRS += include
+# disable pointer signed / unsigned warnings in gcc 4.0
+KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
-FIND := find
-FINDFLAGS := -L
+# disable invalid "can't wrap" optimizations for signed / pointers
+KBUILD_CFLAGS	+= $(call cc-option,-fno-strict-overflow)
-checkstack:
-		$(CROSS_COMPILE)objdump -d $(obj)u-boot \
-			`$(FIND) $(obj) -name u-boot-spl -print` | \
-			perl $(src)tools/checkstack.pl $(ARCH)
-
-tags ctags:
-		ctags -w -o $(obj)ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
-						-name '*.[chS]' -print`
-
-etags:
-		etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
-						-name '*.[chS]' -print`
-cscope:
-		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
-						cscope.files
-		cscope -b -q -k
-
-SYSTEM_MAP = \
-		$(NM) $1 | \
-		grep -v '(compiled)|(.o$$)|( [aUw] )|(..ng$$)|(LASH[RL]DI)' | \
-		LC_ALL=C sort
-$(obj)System.map:	$(obj)u-boot
-		@$(call SYSTEM_MAP,$<) > $(obj)System.map
-
-checkthumb:
-	@if test $(call cc-version) -lt 0404; then \
-		echo -n '*** Your GCC does not produce working '; \
-		echo 'binaries in THUMB mode.'; \
-		echo '*** Your board is configured for THUMB mode.'; \
-		false; \
-	fi
+# conserve stack if available
+KBUILD_CFLAGS   += $(call cc-option,-fconserve-stack)
-# GCC 3.x is reported to have problems generating the type of relocation
-# that U-Boot wants.
-# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
-checkgcc4:
-	@if test $(call cc-version) -lt 0400; then \
-		echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
-		false; \
-	fi
+# use the deterministic mode of AR if available
+KBUILD_ARFLAGS := $(call ar-option,D)
+
+# check for 'asm goto'
+ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
+	KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
+endif
+
+# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
+KBUILD_CPPFLAGS += $(KCPPFLAGS)
+KBUILD_AFLAGS += $(KAFLAGS)
+KBUILD_CFLAGS += $(KCFLAGS)
+
+# Use --build-id when available.
+LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
+			      $(call cc-ldoption, -Wl$(comma)--build-id,))
+KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
+LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
+
+ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
+LDFLAGS_vmlinux	+= $(call ld-option, -X,)
+endif
+
+FINAL_LIBS := $(PLATFORM_LIBS)
+export FINAL_LIBS
+
+# Default kernel image to build when no specific target is given.
+# KBUILD_IMAGE may be overruled on the command line or
+# set in the environment
+# Also any assignments in arch/$(ARCH)/Makefile take precedence over
+# this default value
+export KBUILD_IMAGE ?= vmlinux
+
+#
+# INSTALL_PATH specifies where to place the updated kernel and system map
+# images. Default is /boot, but you can set it to other values
+export	INSTALL_PATH ?= /boot
#
-# Auto-generate the autoconf.mk file (which is included by all makefiles)
+# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
+# relocations required by build roots.  This is not defined in the
+# makefile but the argument can be passed to make if needed.
 #
-# 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 $@ ; \
-	set -e ; \
-	: Generate the dependancies ; \
-	$(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
-		-MQ $(obj)include/autoconf.mk include/common.h > $@
-
-$(obj)include/autoconf.mk: $(obj)include/config.h
-	@$(XECHO) Generating $@ ; \
-	set -e ; \
-	: Extract the config macros ; \
-	$(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h | \
-		sed -n -f tools/scripts/define2mk.sed > $@.tmp && \
-	mv $@.tmp $@
-
-$(obj)include/generated/generic-asm-offsets.h:	$(obj)include/autoconf.mk.dep \
-	$(obj)lib/asm-offsets.s
-	@$(XECHO) Generating $@
-	tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@
-
-$(obj)lib/asm-offsets.s:	$(obj)include/autoconf.mk.dep \
-	$(src)lib/asm-offsets.c
-	@mkdir -p $(obj)lib
-	$(CC) -DDO_DEPS_ONLY \
-		$(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
-		-o $@ $(src)lib/asm-offsets.c -c -S
-
-$(obj)include/generated/asm-offsets.h:	$(obj)include/autoconf.mk.dep \
-	$(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
-	@$(XECHO) Generating $@
-	tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@
-
-$(obj)$(CPUDIR)/$(SOC)/asm-offsets.s:	$(obj)include/autoconf.mk.dep
-	@mkdir -p $(obj)$(CPUDIR)/$(SOC)
-	if [ -f $(src)$(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; \
-	else \
-		touch $@; \
-	fi
-#########################################################################
-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)) \
-updater depend dep tags ctags etags cscope $(obj)System.map:
-	@echo "System not configured - see README" >&2
-	@ exit 1
+MODLIB	= $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
+export MODLIB
+
+#
+#  INSTALL_MOD_STRIP, if defined, will cause modules to be
+#  stripped after they are installed.  If INSTALL_MOD_STRIP is '1', then
+#  the default option --strip-debug will be used.  Otherwise,
+#  INSTALL_MOD_STRIP value will be used as the options to the strip command.
+
+ifdef INSTALL_MOD_STRIP
+ifeq ($(INSTALL_MOD_STRIP),1)
+mod_strip_cmd = $(STRIP) --strip-debug
+else
+mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
+endif # INSTALL_MOD_STRIP=1
+else
+mod_strip_cmd = true
+endif # INSTALL_MOD_STRIP
+export mod_strip_cmd
-tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) -C $@ all
-endif	# config.mk
+
+ifdef CONFIG_MODULE_SIG_ALL
+MODSECKEY = ./signing_key.priv
+MODPUBKEY = ./signing_key.x509
+export MODPUBKEY
+mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)
+else
+mod_sign_cmd = true
+endif
+export mod_sign_cmd
+
+
+ifeq ($(KBUILD_EXTMOD),)
+#core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/
+
+vmlinux-dirs	:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
+		     $(arch-y) $(arch-m) $(board-y) $(board-m) \
+		     $(disk-y) $(disk-m) $(fs-y) $(fs-m) \
+		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
+		     $(net-y) $(net-m) $(libs-y) $(libs-m)))
+
+vmlinux-alldirs	:= $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
+		     $(init-n) $(init-) \
+		     $(arch-y) $(arch-m)  $(board-y) $(board-m) \
+		     $(disk-y) $(disk-m) $(fs-y) $(fs-m) \
+		     $(core-n) $(core-) $(drivers-n) $(drivers-) \
+		     $(net-n)  $(net-)  $(libs-n)    $(libs-))))
+
+arch-y		:= $(patsubst %/, %/built-in.o, $(arch-y))
+board-y		:= $(patsubst %/, %/built-in.o, $(board-y))
+core-y		:= $(patsubst %/, %/built-in.o, $(core-y))
+disk-y		:= $(patsubst %/, %/built-in.o, $(disk-y))
+drivers-y	:= $(patsubst %/, %/built-in.o, $(drivers-y))
+fs-y		:= $(patsubst %/, %/built-in.o, $(fs-y))
+init-y		:= $(patsubst %/, %/built-in.o, $(init-y))
+net-y		:= $(patsubst %/, %/built-in.o, $(net-y))
+spl-y		:= $(patsubst %/, %/built-in.o, $(spl-y))
+
+libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
+
+# Externally visible symbols (used by link-vmlinux.sh)
+export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
+export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) \
+			      $(arch-y) $(board-y) $(disk-y) $(fs-y)
+export KBUILD_LDS          := arch/$(SRCARCH)/cpu/u-boot.lds
+export LDFLAGS_vmlinux
+
+vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
+
+# Final link of vmlinux
+      cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)
+quiet_cmd_link-vmlinux = LINK    $@
+
+# Include targets which we want to
+# execute if the rest of the kernel build went well.
+vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
+ifdef CONFIG_HEADERS_CHECK
+	$(Q)$(MAKE) -f $(MAKEFILE_NAME) headers_check
+endif
+ifdef CONFIG_SAMPLES
+	$(Q)$(MAKE) $(build)=samples
+endif
+ifdef CONFIG_BUILD_DOCSRC
+	$(Q)$(MAKE) $(build)=Documentation
+endif
+	+$(call if_changed,link-vmlinux)
+
+spl/u-boot:
+	$(Q)echo "SPL not yet supported"
+
+# The actual objects are generated when descending,
+# make sure no implicit rule kicks in
+$(sort $(vmlinux-deps)): $(vmlinux-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 += $(vmlinux-dirs)
+$(vmlinux-dirs): prepare scripts
+	$(Q)$(MAKE) $(build)=$@
+
+# Store (new) KERNELRELASE string in include/config/kernel.release
+include/config/kernel.release: include/config/auto.conf FORCE
+	$(Q)rm -f $@
+	$(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@
+
+
+# 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: include/config/kernel.release $(TIMESTAMP_FILE) $(VERSION_FILE)
+ifneq ($(KBUILD_SRC),)
+	@$(kecho) '  Using $(srctree) as source for kernel'
+	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
+		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
+		echo >&2 "  in the '$(srctree)' directory.";\
+		/bin/false; \
+	fi;
+endif
+
+# prepare2 creates a makefile if using a separate output directory
+prepare2: prepare3 outputmakefile asm-generic
+
+prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
+                   include/config/auto.conf
+	$(cmd_crmodverdir)
+
+archprepare: archheaders archscripts prepare1 scripts_basic
+
+prepare0: archprepare FORCE
+	$(Q)$(MAKE) $(build)=.
+
+# All the preparing..
+prepare: prepare0
+
+# Generate some files
+# ---------------------------------------------------------------------------
+
+# KERNELRELEASE can change from a few different places, meaning version.h
+# needs to be updated, so this check is forced on all builds
$(VERSION_FILE):
    	@mkdir -p $(dir $(VERSION_FILE))
@@ -770,131 +931,591 @@ $(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
+uts_len := 64
+define filechk_utsrelease.h
+	if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
+	  echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2;    \
+	  exit 1;                                                         \
+	fi;                                                               \
+	(echo #define UTS_RELEASE "$(KERNELRELEASE)";)
+endef
+
+define filechk_version.h
+	(echo #define LINUX_VERSION_CODE $(shell                         \
+	expr $(VERSION) * 65536 + 0$(PATCHLEVEL) * 256 + 0$(SUBLEVEL)); \
+	echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
+endef
-xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
-	$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
+$(version_h): $(MAKEFILE_NAME) FORCE
+	$(call filechk,version.h)
-tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
-	$(MAKE) -C tools HOST_TOOLS_ALL=y
+include/generated/utsrelease.h: include/config/kernel.release FORCE
+	$(call filechk,utsrelease.h)
-.PHONY : CHANGELOG
-CHANGELOG:
-	git log --no-merges U-Boot-1_1_5.. | \
-	unexpand -a | sed -e 's/\s\s*$$//' > $@
+PHONY += headerdep
+headerdep:
+	$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
+	$(srctree)/scripts/headerdep.pl -I$(srctree)/include
-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
+PHONY += depend dep
+depend dep:
+	@echo '*** Warning: make $@ is unnecessary now.'
-%_config::	unconfig
-	@$(MKCONFIG) -A $(@:_config=)
+# ---------------------------------------------------------------------------
+# Firmware install
+INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
+export INSTALL_FW_PATH
-sinclude $(obj).boards.depend
-$(obj).boards.depend:	boards.cfg
-	@awk '(NF && $$1 !~ /^#/) { print $$1 ": " $$1 "_config; $$(MAKE)" }' $< > $@
+PHONY += firmware_install
+firmware_install: FORCE
+	@mkdir -p $(objtree)/firmware
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
+# ---------------------------------------------------------------------------
+# Kernel headers
+
+#Default location for installed headers
+export INSTALL_HDR_PATH = $(objtree)/usr
+
+hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
+
+# If we do an all arch process set dst to asm-$(hdr-arch)
+hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
+
+PHONY += archheaders
+archheaders:
+
+PHONY += archscripts
+archscripts:
+
+PHONY += __headers
+__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
+	$(Q)$(MAKE) $(build)=scripts build_unifdef
+
+PHONY += headers_install_all
+headers_install_all:
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
+
+PHONY += headers_install
+headers_install: __headers
+	$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
+	  $(error Headers not exportable for the $(SRCARCH) architecture))
+	$(Q)$(MAKE) $(hdr-inst)=include/uapi
+	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
+
+PHONY += headers_check_all
+headers_check_all: headers_install_all
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
+
+PHONY += headers_check
+headers_check: headers_install
+	$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
+	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
+
+# ---------------------------------------------------------------------------
+# Modules
+
+ifdef CONFIG_MODULES
+
+# By default, build modules as well
+
+all: modules
+
+#	Build modules
 #
-# Functions to generate common board directory names
+#	A module can be listed more than once in obj-m resulting in
+#	duplicate lines in modules.order files.  Those are removed
+#	using awk while concatenating to the final file.
+
+PHONY += modules
+modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
+	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
+	@$(kecho) '  Building modules, stage 2.';
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
+
+modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
+	$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
+
+%/modules.builtin: include/config/auto.conf
+	$(Q)$(MAKE) $(modbuiltin)=$*
+
+
+# Target to prepare building external modules
+PHONY += modules_prepare
+modules_prepare: prepare scripts
+
+# Target to install modules
+PHONY += modules_install
+modules_install: _modinst_ _modinst_post
+
+PHONY += _modinst_
+_modinst_:
+	@rm -rf $(MODLIB)/kernel
+	@rm -f $(MODLIB)/source
+	@mkdir -p $(MODLIB)/kernel
+	@ln -s $(srctree) $(MODLIB)/source
+	@if [ ! $(objtree) -ef  $(MODLIB)/build ]; then \
+		rm -f $(MODLIB)/build ; \
+		ln -s $(objtree) $(MODLIB)/build ; \
+	fi
+	@cp -f $(objtree)/modules.order $(MODLIB)/
+	@cp -f $(objtree)/modules.builtin $(MODLIB)/
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
+
+# This depmod is only for convenience to give the initial
+# boot a modules.dep even before / is mounted read-write.  However the
+# boot script depmod is the master version.
+PHONY += _modinst_post
+_modinst_post: _modinst_
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
+	$(call cmd,depmod)
+
+ifeq ($(CONFIG_MODULE_SIG), y)
+PHONY += modules_sign
+modules_sign:
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
+endif
+
+else # CONFIG_MODULES
+
+# Modules not configured
+# ---------------------------------------------------------------------------
+
+modules modules_install: FORCE
+	@echo >&2
+	@echo >&2 "The present kernel configuration has modules disabled."
+	@echo >&2 "Type 'make config' and enable loadable module support."
+	@echo >&2 "Then build a kernel with module support enabled."
+	@echo >&2
+	@exit 1
+
+endif # CONFIG_MODULES
+
+###
+# 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)
+
+# Directories & files removed with 'make mrproper'
+MRPROPER_DIRS  += include/config usr/include include/generated          \
+                  arch/*/include/generated
+MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
+		  Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
+		  signing_key.priv signing_key.x509 x509.genkey		\
+		  extra_certificates signing_key.x509.keyid		\
+		  signing_key.x509.signer
+
+# clean - Delete most, but leave enough to build external modules
 #
-lcname	= $(shell echo $(1) | sed -e 's/(.*)_config/\L\1/')
-ucname	= $(shell echo $(1) | sed -e 's/(.*)_config/\U\1/')
-
-#########################################################################
-#########################################################################
-
-clean:
-	@rm -f $(obj)examples/standalone/82559_eeprom			  \
-	       $(obj)examples/standalone/atmel_df_pow2			  \
-	       $(obj)examples/standalone/eepro100_eeprom		  \
-	       $(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,fw_setenv}			  \
-	       $(obj)tools/envcrc					  \
-	       $(obj)tools/gdb/{astest,gdbcont,gdbsend}			  \
-	       $(obj)tools/gen_eth_addr    $(obj)tools/img2srec		  \
-	       $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk	  \
-	       $(obj)tools/mk{smdk5250,}spl				  \
-	       $(obj)tools/mxsboot					  \
-	       $(obj)tools/ncb		   $(obj)tools/ubsha1		  \
-	       $(obj)tools/kernel-doc/docproc
-	@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}	  \
-	       $(obj)board/matrix_vision/*/bootscript.img		  \
-	       $(obj)board/voiceblue/eeprom 				  \
-	       $(obj)u-boot.lds						  \
-	       $(obj)arch/blackfin/cpu/bootrom-asm-offsets.[chs]	  \
-	       $(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)MLO MLO.byteswap
-	@rm -f $(obj)SPL
-	@rm -f $(obj)tools/xway-swap-bytes
-	@rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c
-	@rm -f $(obj)arch/powerpc/cpu/mpc83xx/ddr-gen?.c
-	@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
-
-backup:
-	F=`basename $(TOPDIR)` ; cd .. ; \
-	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
-
-#########################################################################
+clean: rm-dirs  := $(CLEAN_DIRS)
+clean: rm-files := $(CLEAN_FILES)
+clean-dirs      := $(addprefix _clean_, . $(vmlinux-alldirs) doc)
+
+PHONY += $(clean-dirs) clean archclean vmlinuxclean
+$(clean-dirs):
+	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
+
+vmlinuxclean:
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
+
+clean: archclean vmlinuxclean
+
+# mrproper - Delete all generated files, including .config
+#
+mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
+mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
+mrproper-dirs      := $(addprefix _mrproper_,scripts)
+
+PHONY += $(mrproper-dirs) mrproper archmrproper
+$(mrproper-dirs):
+	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
+
+mrproper: clean archmrproper $(mrproper-dirs)
+	$(call cmd,rmdirs)
+	$(call cmd,rmfiles)
+
+# 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
+
+
+# Packaging of the kernel to various formats
+# ---------------------------------------------------------------------------
+# rpm target kept for backward compatibility
+package-dir	:= $(srctree)/scripts/package
+
+%src-pkg: FORCE
+	$(Q)$(MAKE) $(build)=$(package-dir) $@
+%pkg: include/config/kernel.release FORCE
+	$(Q)$(MAKE) $(build)=$(package-dir) $@
+rpm: include/config/kernel.release FORCE
+	$(Q)$(MAKE) $(build)=$(package-dir) $@
+
+
+# Brief documentation of the typical targets used
+# ---------------------------------------------------------------------------
+
+boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
+boards := $(notdir $(boards))
+board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
+board-dirs := $(sort $(notdir $(board-dirs:/=)))
+
+help:
+	@echo  'Cleaning targets:'
+	@echo  '  clean		  - Remove most generated files but keep the config and'
+	@echo  '                    enough build support to build external modules'
+	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
+	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
+	@echo  ''
+	@echo  'Configuration targets:'
+	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
+	@echo  ''
+	@echo  'Other generic targets:'
+	@echo  '  all		  - Build all targets marked with [*]'
+	@echo  '* vmlinux	  - Build the bare kernel'
+	@echo  '* modules	  - Build all modules'
+	@echo  '  modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
+	@echo  '  firmware_install- Install all firmware to INSTALL_FW_PATH'
+	@echo  '                    (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
+	@echo  '  dir/            - Build all files in dir and below'
+	@echo  '  dir/file.[oisS] - Build specified target only'
+	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
+	@echo  '                    (requires a recent binutils and recent build (System.map))'
+	@echo  '  dir/file.ko     - Build module including final link'
+	@echo  '  modules_prepare - Set up for building external modules'
+	@echo  '  tags/TAGS	  - Generate tags file for editors'
+	@echo  '  cscope	  - Generate cscope index'
+	@echo  '  gtags           - Generate GNU GLOBAL index'
+	@echo  '  kernelrelease	  - Output the release version string'
+	@echo  '  kernelversion	  - Output the version stored in Makefile'
+	@echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
+	 echo  '                    (default: $(INSTALL_HDR_PATH))'; \
+	 echo  ''
+	@echo  'Static analysers'
+	@echo  '  checkstack      - Generate a list of stack hogs'
+	@echo  '  namespacecheck  - Name space analysis on compiled kernel'
+	@echo  '  versioncheck    - Sanity check on version.h usage'
+	@echo  '  includecheck    - Check for duplicate included header files'
+	@echo  '  export_report   - List the usages of all exported symbols'
+	@echo  '  headers_check   - Sanity check on exported headers'
+	@echo  '  headerdep       - Detect inclusion cycles in headers'
+	@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
+	@echo  ''
+	@echo  'Kernel packaging:'
+	@$(MAKE) $(build)=$(package-dir) help
+	@echo  ''
+	@echo  'Documentation targets:'
+	@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
+	@echo  ''
+	@echo  'Architecture specific targets ($(SRCARCH)):'
+	@$(if $(archhelp),$(archhelp),\
+		echo '  No architecture specific help defined for $(SRCARCH)')
+	@echo  ''
+	@$(if $(boards), \
+		$(foreach b, $(boards), \
+		printf "  %-24s - Build for %s\n" $(b) $(subst _defconfig,,$(b));) \
+		echo '')
+	@$(if $(board-dirs), \
+		$(foreach b, $(board-dirs), \
+		printf "  %-16s - Show %s-specific targets\n" help-$(b) $(b);) \
+		printf "  %-16s - Show all of the above\n" help-boards; \
+		echo '')
+
+	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
+	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
+	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
+	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
+	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
+	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
+	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
+	@echo  '		1: warnings which may be relevant and do not occur too often'
+	@echo  '		2: warnings which occur quite often but may still be relevant'
+	@echo  '		3: more obscure warnings, can most likely be ignored'
+	@echo  '		Multiple levels can be combined with W=12 or W=123'
+	@echo  ''
+	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
+	@echo  'For further info see the ./README file'
+
+
+help-board-dirs := $(addprefix help-,$(board-dirs))
+
+help-boards: $(help-board-dirs)
+
+boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
+
+$(help-board-dirs): help-%:
+	@echo  'Architecture specific targets ($(SRCARCH) $*):'
+	@$(if $(boards-per-dir), \
+		$(foreach b, $(boards-per-dir), \
+		printf "  %-24s - Build for %s\n" $*/$(b) $(subst _defconfig,,$(b));) \
+		echo '')
+
+
+# Documentation targets
+# ---------------------------------------------------------------------------
+%docs: scripts_basic FORCE
+	$(Q)$(MAKE) $(build)=scripts build_docproc
+	$(Q)$(MAKE) $(build)=Documentation/DocBook $@
+
+else # KBUILD_EXTMOD
+
+###
+# External module support.
+# When building external modules the kernel used as basis is considered
+# read-only, and no consistency checks are made and the make
+# system is not used on the basis kernel. If updates are required
+# in the basis kernel ordinary make commands (without M=...) must
+# be used.
+#
+# The following are the only valid targets when building external
+# modules.
+# make M=dir clean     Delete all automatically generated files
+# make M=dir modules   Make all modules in specified dir
+# make M=dir	       Same as 'make M=dir modules'
+# make M=dir modules_install
+#                      Install the modules built in the module directory
+#                      Assumes install directory is already created
+
+# We are always building modules
+KBUILD_MODULES := 1
+PHONY += crmodverdir
+crmodverdir:
+	$(cmd_crmodverdir)
+
+PHONY += $(objtree)/Module.symvers
+$(objtree)/Module.symvers:
+	@test -e $(objtree)/Module.symvers || ( \
+	echo; \
+	echo "  WARNING: Symbol version dump $(objtree)/Module.symvers"; \
+	echo "           is missing; modules will have no dependencies and modversions."; \
+	echo )
+
+module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
+PHONY += $(module-dirs) modules
+$(module-dirs): crmodverdir $(objtree)/Module.symvers
+	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
+
+modules: $(module-dirs)
+	@$(kecho) '  Building modules, stage 2.';
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
+
+PHONY += modules_install
+modules_install: _emodinst_ _emodinst_post
+
+install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
+PHONY += _emodinst_
+_emodinst_:
+	$(Q)mkdir -p $(MODLIB)/$(install-dir)
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
+
+PHONY += _emodinst_post
+_emodinst_post: _emodinst_
+	$(call cmd,depmod)
+
+clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
+
+PHONY += $(clean-dirs) clean
+$(clean-dirs):
+	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
+
+clean:	rm-dirs := $(MODVERDIR)
+clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
+
+help:
+	@echo  '  Building external modules.'
+	@echo  '  Syntax: make -C path/to/kernel/src M=$$PWD target'
+	@echo  ''
+	@echo  '  modules         - default target, build the module(s)'
+	@echo  '  modules_install - install the module'
+	@echo  '  clean           - remove generated files in module directory only'
+	@echo  ''
+
+# Dummies...
+PHONY += prepare scripts
+prepare: ;
+scripts: ;
+endif # KBUILD_EXTMOD
+
+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 '.*.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
+
+# Generate tags for editors
+# ---------------------------------------------------------------------------
+quiet_cmd_tags = GEN     $@
+      cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
+
+tags TAGS cscope gtags: FORCE
+	$(call cmd,tags)
+
+# Scripts to check various things for consistency
+# ---------------------------------------------------------------------------
+
+PHONY += includecheck versioncheck coccicheck namespacecheck export_report
+
+includecheck:
+	find $(srctree)/* $(RCS_FIND_IGNORE) \
+		-name '*.[hcS]' -type f -print | sort \
+		| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
+
+versioncheck:
+	find $(srctree)/* $(RCS_FIND_IGNORE) \
+		-name '*.[hcS]' -type f -print | sort \
+		| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
+
+coccicheck:
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
+
+namespacecheck:
+	$(PERL) $(srctree)/scripts/namespace.pl
+
+export_report:
+	$(PERL) $(srctree)/scripts/export_report.pl
+
+endif #ifeq ($(config-targets),1)
+endif #ifeq ($(mixed-targets),1)
+
+PHONY += checkstack kernelrelease kernelversion
+
+# UML needs a little special treatment here.  It wants to use the host
+# toolchain, so needs $(SUBARCH) passed to checkstack.pl.  Everyone
+# else wants $(ARCH), including people doing cross-builds, which means
+# that $(SUBARCH) doesn't work here.
+ifeq ($(ARCH), um)
+CHECKSTACK_ARCH := $(SUBARCH)
+else
+CHECKSTACK_ARCH := $(ARCH)
+endif
+checkstack:
+	$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
+	$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
+
+kernelrelease:
+	@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
+
+kernelversion:
+	@echo $(KERNELVERSION)
+
+# Clear a bunch of variables before executing the submake
+tools/: FORCE
+	$(Q)mkdir -p $(objtree)/tools
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/
+
+tools/%: FORCE
+	$(Q)mkdir -p $(objtree)/tools
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/ $*
+
+# Single targets
+# ---------------------------------------------------------------------------
+# Single targets are compatible with:
+# - build with mixed source and output
+# - build with separate output dir 'make O=...'
+# - external modules
+#
+#  target-dir => where to store outputfile
+#  build-dir  => directory in kernel source tree to use
+
+ifeq ($(KBUILD_EXTMOD),)
+        build-dir  = $(patsubst %/,%,$(dir $@))
+        target-dir = $(dir $@)
+else
+        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
+        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
+        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
+endif
+
+%.s: %.c prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.i: %.c prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.o: %.c prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.lst: %.c prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.s: %.S prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.o: %.S prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+%.symtypes: %.c prepare scripts FORCE
+	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+
+# Modules
+/: prepare scripts FORCE
+	$(cmd_crmodverdir)
+	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+	$(build)=$(build-dir)
+%/: prepare scripts FORCE
+	$(cmd_crmodverdir)
+	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+	$(build)=$(build-dir)
+%.ko: prepare scripts FORCE
+	$(cmd_crmodverdir)
+	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
+	$(build)=$(build-dir) $(@:.ko=.o)
+	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
+
+# FIXME Should go into a make.lib or something
+# ===========================================================================
+
+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)
+
+# Run depmod only if we have System.map and depmod is executable
+quiet_cmd_depmod = DEPMOD  $(KERNELRELEASE)
+      cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
+                   $(KERNELRELEASE)
+
+# Create temporary dir for module support files
+# clean it up only when building all modules
+cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
+                  $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
+
+# read all saved command lines
+
+targets := $(wildcard $(sort $(targets)))
+cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
+
+ifneq ($(cmd_files),)
+  $(cmd_files): ;	# Do not try to update included dependency files
+  include $(cmd_files)
+endif
+
+# 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: $(PHONY)
diff --git a/Makefile.kbuild b/Makefile.kbuild
deleted file mode 100644
index dc241d4..0000000
--- a/Makefile.kbuild
+++ /dev/null
@@ -1,1521 +0,0 @@
-VERSION = 2013
-PATCHLEVEL = 04
-SUBLEVEL =
-EXTRAVERSION =
-NAME = Uncular Umbrella
-ifneq "$(SUBLEVEL)" ""
-U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
-else
-U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
-endif
-
-# *DOCUMENTATION*
-# To see a list of typical targets execute "make help"
-# More info can be located in ./README
-# Comments in this file are targeted only to the developer, do not
-# expect to learn how to build the kernel reading this file.
-
-# Do not:
-# o  use make's built-in rules and variables
-#    (this increases performance and avoids hard-to-debug behaviour);
-# o  print "Entering directory ...";
-MAKEFLAGS += -rR --no-print-directory
-
-# Avoid funny character set dependencies
-unexport LC_ALL
-LC_COLLATE=C
-LC_NUMERIC=C
-export LC_COLLATE LC_NUMERIC
-
-# We are using a recursive build, so we need to do a little thinking
-# to get the ordering right.
-#
-# Most importantly: sub-Makefiles should only ever modify files in
-# their own directory. If in some directory we have a dependency on
-# a file in another dir (which doesn't happen often, but it's often
-# unavoidable when linking the built-in.o targets which finally
-# turn into vmlinux), we will call a sub make in that other dir, and
-# after that we are sure that everything which is in that other dir
-# is now up to date.
-#
-# The only cases where we need to modify files which have global
-# effects are thus separated out and done before the recursive
-# descending is started. They are now explicitly listed as the
-# prepare rule.
-
-# To put more focus on warnings, be less verbose as default
-# Use 'make V=1' to see the full commands
-
-ifeq ("$(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: ;
-
-MKCONFIG	= $(srctree)/mkconfig
-
-ifneq ($(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
-_all: modules
-endif
-
-srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
-objtree		:= $(CURDIR)
-src		:= $(srctree)
-obj		:= $(objtree)
-
-VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
-
-export srctree objtree VPATH
-
-# We use Makefile.kbuild instead of Makefile for now. To be removed.
-MAKEFILE_NAME := $(srctree)/Makefile.kbuild
-
-# U-Boot's directory nanes used by old Makefiles. To be removed.
-TOPDIR := $(srctree)
-SRCTREE := $(srctree)
-OBJTREE = $(objtree)
-export SRCTREE TOPDIR OBJTREE
-
-# Export U-Boot variables
-export BOARD CPU SOC VENDOR
-
-TIMESTAMP_FILE = $(objtree)/include/generated/timestamp_autogenerated.h
-VERSION_FILE = $(objtree)/include/generated/version_autogenerated.h
-
-# SUBARCH tells the usermode build what the underlying arch is.  That is set
-# first, and if a usermode build is happening, the "ARCH=um" on the command
-# line overrides the setting of ARCH below.  If a native build is happening,
-# then ARCH is assigned, getting whatever value it gets normally, and
-# SUBARCH is subsequently ignored.
-
-SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
-				  -e s/sun4u/sparc64/ \
-				  -e s/arm.*/arm/ -e s/sa110/arm/ \
-				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
-				  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-				  -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
-
-# Cross compiling and selecting different set of gcc/bin-utils
-# ---------------------------------------------------------------------------
-#
-# When performing cross compilation for other architectures ARCH shall be set
-# to the target architecture. (See arch/* for the possibilities).
-# ARCH can be set during invocation of make:
-# make ARCH=ia64
-# Another way is to have ARCH set in the environment.
-# The default ARCH is the host where make is executed.
-
-# CROSS_COMPILE specify the prefix used for all executables used
-# during compilation. Only gcc and related bin-utils executables
-# are prefixed with $(CROSS_COMPILE).
-# CROSS_COMPILE can be set on the command line
-# make CROSS_COMPILE=ia64-linux-
-# Alternatively CROSS_COMPILE can be set in the environment.
-# A third alternative is to store a setting in .config so that plain
-# "make" in the configured kernel build directory always uses that.
-# Default value for CROSS_COMPILE is not to prefix executables
-# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
-#ARCH		?= $(SUBARCH)
-CROSS_COMPILE	?= $(CONFIG_CROSS_COMPILE:"%"=%)
-
-# Architecture as present in compile.h
-UTS_MACHINE 	:= $(ARCH)
-SRCARCH 	:= $(ARCH)
-
-# Additional ARCH settings for x86
-ifeq ($(ARCH),i386)
-        SRCARCH := x86
-endif
-ifeq ($(ARCH),x86_64)
-        SRCARCH := x86
-endif
-
-# Additional ARCH settings for sparc
-ifeq ($(ARCH),sparc32)
-       SRCARCH := sparc
-endif
-ifeq ($(ARCH),sparc64)
-       SRCARCH := sparc
-endif
-
-# Additional ARCH settings for sh
-ifeq ($(ARCH),sh64)
-       SRCARCH := sh
-endif
-
-# Additional ARCH settings for tile
-ifeq ($(ARCH),tilepro)
-       SRCARCH := tile
-endif
-ifeq ($(ARCH),tilegx)
-       SRCARCH := tile
-endif
-
-# Where to locate arch specific headers
-hdr-arch  := $(SRCARCH)
-
-KCONFIG_CONFIG	?= .config
-export KCONFIG_CONFIG
-
-# 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
-HOSTCXX      = g++
-HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
-HOSTCXXFLAGS = -O2
-
-# 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 $(CONFIG_MODVERSIONS),1)
-endif
-
-#	If we have "make <whatever> modules", compile modules
-#	in addition to whatever we do anyway.
-#	Just "make" or "make all" shall build modules as well
-
-ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
-  KBUILD_MODULES := 1
-endif
-
-ifeq ($(MAKECMDGOALS),)
-  KBUILD_MODULES := 1
-endif
-
-# But for now at least, U-Boot does not have modules
-KBUILD_MODULES :=
-
-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.
-#
-#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
-#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
-#
-# 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.
-#
-# A simple variant is to prefix commands with $(Q) - that's useful
-# for commands that shall be hidden in non-verbose mode.
-#
-#	$(Q)ln $@ :<
-#
-# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
-# If KBUILD_VERBOSE equals 1 then the above command is displayed.
-
-ifeq ($(KBUILD_VERBOSE),1)
-  quiet =
-  Q =
-else
-  quiet=quiet_
-  Q = @
-endif
-
-# If the user is running make -s (silent mode), suppress echoing of
-# commands
-
-ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
-  quiet=silent_
-endif
-
-export quiet Q KBUILD_VERBOSE
-
-
-# Look for make include files relative to root of kernel src
-MAKEFLAGS += --include-dir=$(srctree)
-
-# We need some generic definitions (do not try to remake the file).
-$(srctree)/scripts/Kbuild.include: ;
-include $(srctree)/scripts/Kbuild.include
-
-# Make variables (CC, etc...)
-
-AS		= $(CROSS_COMPILE)as
-LD		= $(CROSS_COMPILE)ld
-CC		= $(CROSS_COMPILE)gcc
-CPP		= $(CC) -E
-AR		= $(CROSS_COMPILE)ar
-NM		= $(CROSS_COMPILE)nm
-STRIP		= $(CROSS_COMPILE)strip
-OBJCOPY		= $(CROSS_COMPILE)objcopy
-OBJDUMP		= $(CROSS_COMPILE)objdump
-AWK		= awk
-GENKSYMS	= scripts/genksyms/genksyms
-INSTALLKERNEL  := installkernel
-DEPMOD		= /sbin/depmod
-PERL		= perl
-CHECK		= sparse
-
-CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-		  -Wbitwise -Wno-return-void $(CF)
-CFLAGS_MODULE   =
-AFLAGS_MODULE   =
-LDFLAGS_MODULE  =
-CFLAGS_KERNEL	=
-AFLAGS_KERNEL	=
-CFLAGS_GCOV	= -fprofile-arcs -ftest-coverage
-
-
-# Use USERINCLUDE when you must reference the UAPI directories only.
-USERINCLUDE    := \
-		-I$(srctree)/arch/$(hdr-arch)/include/uapi \
-		-Iarch/$(hdr-arch)/include/generated/uapi \
-		-I$(srctree)/include/uapi \
-		-Iinclude/generated/uapi \
-                -include $(srctree)/include/linux/kconfig.h
-
-# Use LINUXINCLUDE when you must reference the include/ directory.
-# Needed to be compatible with the O= option
-LINUXINCLUDE    := \
-		-I$(srctree)/arch/$(hdr-arch)/include \
-		-Iarch/$(hdr-arch)/include/generated \
-		$(if $(KBUILD_SRC), -I$(srctree)/include) \
-		-Iinclude \
-		$(USERINCLUDE)
-
-KBUILD_CPPFLAGS := -D__KERNEL__
-
-gccincdir := $(shell $(CC) -print-file-name=include)
-
-KBUILD_CFLAGS   := -Wall -Wstrict-prototypes -Wno-trigraphs \
-		   -fno-strict-aliasing -fno-common \
-		   -Werror-implicit-function-declaration \
-		   -Wno-format-security \
-		   -fno-delete-null-pointer-checks \
-		   -fno-builtin -ffreestanding
-KBUILD_AFLAGS_KERNEL :=
-KBUILD_CFLAGS_KERNEL :=
-KBUILD_AFLAGS   := -D__ASSEMBLY__
-KBUILD_AFLAGS_MODULE  := -DMODULE
-KBUILD_CFLAGS_MODULE  := -DMODULE
-KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
-
-# Read KERNELRELEASE from include/config/kernel.release (if it exists)
-KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
-KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
-
-export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
-export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP
-export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
-export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
-
-export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
-export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
-export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
-export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
-export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
-export KBUILD_ARFLAGS
-
-# 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
-
-# Support for using generic headers in asm-generic
-PHONY += asm-generic
-asm-generic:
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
-	            src=asm obj=arch/$(SRCARCH)/include/generated/asm
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
-	            src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
-
-# 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).
-
-version_h := include/generated/uapi/linux/version.h
-
-no-dot-config-targets := clean mrproper distclean \
-			 cscope gtags TAGS tags help %docs check% coccicheck \
-			 $(version_h) headers_% archheaders archscripts \
-			 kernelversion %src-pkg
-
-config-targets := 0
-mixed-targets  := 0
-dot-config     := 1
-
-ifneq ($(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
-
-ifeq ($(mixed-targets),1)
-# ===========================================================================
-# We're called with mixed targets (*config and build targets).
-# Handle them one by one.
-
-%:: FORCE
-	$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
-
-else
-ifeq ($(config-targets),1)
-# ===========================================================================
-# *config targets only - make sure prerequisites are updated, and descend
-# in scripts/kconfig to make the *config target
-
-# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
-# KBUILD_DEFCONFIG may point out an alternative default configuration
-# used for 'make defconfig'arch/$(SRCARCH)/config.mk
-# include $(srctree)/arch/$(SRCARCH)/Makefile
-export KBUILD_DEFCONFIG KBUILD_KCONFIG
-
-config: scripts_basic outputmakefile FORCE
-	$(Q)mkdir -p include/linux include/config
-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
-
-%_config: scripts_basic outputmakefile FORCE
-	$(Q)$(MKCONFIG) -A $(@:_config=)
-	$(Q)mkdir -p include/linux include/config
-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
-	$(Q)rm -f $(objtree)/include/config/autoconf.mk.dep \
-		$(objtree)/include/config/autoconf.mk
-	$(Q)$(MAKE) -f scripts/Makefile.autoconf
-
-%config: scripts_basic outputmakefile FORCE
-	$(Q)mkdir -p include/linux include/config
-	$(Q)$(MAKE) $(build)=scripts/kconfig $@
-
-else
-# ===========================================================================
-# Build targets only - this includes vmlinux, arch specific targets, clean
-# targets and others. In general all targets except *config targets.
-
-SRCARCH = $(ARCH)
-include $(objtree)/include/config.mk
-include $(srctree)/arch/$(SRCARCH)/config.mk
-#include $(objtree)/include/config/autoconf.mk
-
-KBUILD_CFLAGS += $(PLATFORM_CPPFLAGS)
-
-ifeq ($(KBUILD_EXTMOD),)
-# Additional helpers built in scripts/
-# Carefully list dependencies so we do not try to build scripts twice
-# in parallel
-PHONY += scripts
-scripts: scripts_basic include/config/auto.conf include/config/tristate.conf
-	$(Q)$(MAKE) $(build)=$(@)
-
-HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
-
-# Objects we will link into vmlinux / subdirs we need to visit
-arch-y		:= arch/$(SRCARCH)/
-board-y		:= board/$(VENDOR)/$(BOARD)/
-board-$(HAVE_VENDOR_COMMON_LIB)	+= board/$(VENDOR)/common/
-core-y		:= common/
-disk-y		:= disk/
-drivers-y	:= drivers/
-fs-y		:= fs/
-init-y		:= init/
-libs-y		:= lib/
-net-y		:= net/
-spl-y		:= spl/
-endif # KBUILD_EXTMOD
-
-ifeq ($(dot-config),1)
-# Read in config
--include include/config/auto.conf
--include $(objtree)/include/config/autoconf.mk
-# -include $(srctree)/arch/$(SRCARCH)/config.mk
-
-ifeq ($(KBUILD_EXTMOD),)
-# Read in dependencies to all Kconfig* files, make sure to run
-# oldconfig if changes are detected.
--include include/config/auto.conf.cmd
-
-# To avoid any implicit rule to kick in, define an empty command
-$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
-
-# If .config is newer than include/config/auto.conf, someone tinkered
-# with it and forgot to run make oldconfig.
-# if auto.conf.cmd is missing then we are probably in a cleaned tree so
-# we execute the config step to be sure to catch updated Kconfig files
-include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
-	$(warning check $@ missing $^)
-	$(Q)$(MAKE) -f $(MAKEFILE_NAME) silentoldconfig
-else
-# external modules needs include/generated/autoconf.h and include/config/auto.conf
-# but do not care if they are up-to-date. Use auto.conf to trigger the test
-PHONY += include/config/auto.conf
-
-include/config/auto.conf:
-	$(Q)test -e include/generated/autoconf.h -a -e $@ || (		\
-	echo >&2;							\
-	echo >&2 "  ERROR: Kernel configuration is invalid.";		\
-	echo >&2 "         include/generated/autoconf.h or $@ are missing.";\
-	echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";	\
-	echo >&2 ;							\
-	/bin/false)
-
-endif # KBUILD_EXTMOD
-
-else
-# Dummy target needed, because used as prerequisite
-include/config/auto.conf: ;
-endif # $(dot-config)
-
-# The all: target is the default when no target is given on the
-# command line.
-# This allow a user to issue only 'make' to build a kernel including modules
-# Defaults to vmlinux, but the arch makefile usually adds further targets
-all: vmlinux
-
-ifdef CONFIG_SPL
-all: spl/u-boot
-endif
-
-ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS	+= -Os
-else
-KBUILD_CFLAGS	+= -O2
-endif
-
-#include $(srctree)/arch/$(SRCARCH)/Makefile
-
-ifdef CONFIG_READABLE_ASM
-# Disable optimizations that make assembler listings hard to read.
-# reorder blocks reorders the control in the function
-# ipa clone creates specialized cloned functions
-# partial inlining inlines only parts of functions
-KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
-                 $(call cc-option,-fno-ipa-cp-clone,) \
-                 $(call cc-option,-fno-partial-inlining)
-endif
-
-ifneq ($(CONFIG_FRAME_WARN),0)
-KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
-endif
-
-# Force gcc to behave correct even for buggy distributions
-ifndef CONFIG_CC_STACKPROTECTOR
-KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
-endif
-
-# This warning generated too much noise in a regular build.
-# Use make W=1 to enable this warning (see scripts/Makefile.build)
-KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
-
-ifdef CONFIG_FRAME_POINTER
-KBUILD_CFLAGS	+= -fno-omit-frame-pointer -fno-optimize-sibling-calls
-else
-# Some targets (ARM with Thumb2, for example), can't be built with frame
-# pointers.  For those, we don't have FUNCTION_TRACER automatically
-# select FRAME_POINTER.  However, FUNCTION_TRACER adds -pg, and this is
-# incompatible with -fomit-frame-pointer with current GCC, so we don't use
-# -fomit-frame-pointer with FUNCTION_TRACER.
-ifndef CONFIG_FUNCTION_TRACER
-KBUILD_CFLAGS	+= -fomit-frame-pointer
-endif
-endif
-
-ifdef CONFIG_DEBUG_INFO
-KBUILD_CFLAGS	+= -g
-KBUILD_AFLAGS	+= -gdwarf-2
-endif
-
-ifdef CONFIG_DEBUG_INFO_REDUCED
-KBUILD_CFLAGS 	+= $(call cc-option, -femit-struct-debug-baseonly)
-endif
-
-ifdef CONFIG_FUNCTION_TRACER
-ifdef CONFIG_HAVE_FENTRY
-CC_USING_FENTRY	:= $(call cc-option, -mfentry -DCC_USING_FENTRY)
-endif
-KBUILD_CFLAGS	+= -pg $(CC_USING_FENTRY)
-KBUILD_AFLAGS	+= $(CC_USING_FENTRY)
-ifdef CONFIG_DYNAMIC_FTRACE
-	ifdef CONFIG_HAVE_C_RECORDMCOUNT
-		BUILD_C_RECORDMCOUNT := y
-		export BUILD_C_RECORDMCOUNT
-	endif
-endif
-endif
-
-# We trigger additional mismatches with less inlining
-ifdef CONFIG_DEBUG_SECTION_MISMATCH
-KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
-endif
-
-# arch Makefile may override CC so keep this after arch Makefile is included
-NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
-CHECKFLAGS     += $(NOSTDINC_FLAGS)
-
-# warn about C99 declaration after statement
-KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
-
-# disable pointer signed / unsigned warnings in gcc 4.0
-KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
-
-# disable invalid "can't wrap" optimizations for signed / pointers
-KBUILD_CFLAGS	+= $(call cc-option,-fno-strict-overflow)
-
-# conserve stack if available
-KBUILD_CFLAGS   += $(call cc-option,-fconserve-stack)
-
-# use the deterministic mode of AR if available
-KBUILD_ARFLAGS := $(call ar-option,D)
-
-# check for 'asm goto'
-ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
-	KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
-endif
-
-# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
-KBUILD_CPPFLAGS += $(KCPPFLAGS)
-KBUILD_AFLAGS += $(KAFLAGS)
-KBUILD_CFLAGS += $(KCFLAGS)
-
-# Use --build-id when available.
-LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
-			      $(call cc-ldoption, -Wl$(comma)--build-id,))
-KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
-LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
-
-ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
-LDFLAGS_vmlinux	+= $(call ld-option, -X,)
-endif
-
-FINAL_LIBS := $(PLATFORM_LIBS)
-export FINAL_LIBS
-
-# Default kernel image to build when no specific target is given.
-# KBUILD_IMAGE may be overruled on the command line or
-# set in the environment
-# Also any assignments in arch/$(ARCH)/Makefile take precedence over
-# this default value
-export KBUILD_IMAGE ?= vmlinux
-
-#
-# INSTALL_PATH specifies where to place the updated kernel and system map
-# images. Default is /boot, but you can set it to other values
-export	INSTALL_PATH ?= /boot
-
-#
-# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
-# relocations required by build roots.  This is not defined in the
-# makefile but the argument can be passed to make if needed.
-#
-
-MODLIB	= $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
-export MODLIB
-
-#
-#  INSTALL_MOD_STRIP, if defined, will cause modules to be
-#  stripped after they are installed.  If INSTALL_MOD_STRIP is '1', then
-#  the default option --strip-debug will be used.  Otherwise,
-#  INSTALL_MOD_STRIP value will be used as the options to the strip command.
-
-ifdef INSTALL_MOD_STRIP
-ifeq ($(INSTALL_MOD_STRIP),1)
-mod_strip_cmd = $(STRIP) --strip-debug
-else
-mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
-endif # INSTALL_MOD_STRIP=1
-else
-mod_strip_cmd = true
-endif # INSTALL_MOD_STRIP
-export mod_strip_cmd
-
-
-ifdef CONFIG_MODULE_SIG_ALL
-MODSECKEY = ./signing_key.priv
-MODPUBKEY = ./signing_key.x509
-export MODPUBKEY
-mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)
-else
-mod_sign_cmd = true
-endif
-export mod_sign_cmd
-
-
-ifeq ($(KBUILD_EXTMOD),)
-#core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/
-
-vmlinux-dirs	:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
-		     $(arch-y) $(arch-m) $(board-y) $(board-m) \
-		     $(disk-y) $(disk-m) $(fs-y) $(fs-m) \
-		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
-		     $(net-y) $(net-m) $(libs-y) $(libs-m)))
-
-vmlinux-alldirs	:= $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
-		     $(init-n) $(init-) \
-		     $(arch-y) $(arch-m)  $(board-y) $(board-m) \
-		     $(disk-y) $(disk-m) $(fs-y) $(fs-m) \
-		     $(core-n) $(core-) $(drivers-n) $(drivers-) \
-		     $(net-n)  $(net-)  $(libs-n)    $(libs-))))
-
-arch-y		:= $(patsubst %/, %/built-in.o, $(arch-y))
-board-y		:= $(patsubst %/, %/built-in.o, $(board-y))
-core-y		:= $(patsubst %/, %/built-in.o, $(core-y))
-disk-y		:= $(patsubst %/, %/built-in.o, $(disk-y))
-drivers-y	:= $(patsubst %/, %/built-in.o, $(drivers-y))
-fs-y		:= $(patsubst %/, %/built-in.o, $(fs-y))
-init-y		:= $(patsubst %/, %/built-in.o, $(init-y))
-net-y		:= $(patsubst %/, %/built-in.o, $(net-y))
-spl-y		:= $(patsubst %/, %/built-in.o, $(spl-y))
-
-libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
-
-# Externally visible symbols (used by link-vmlinux.sh)
-export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
-export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) \
-			      $(arch-y) $(board-y) $(disk-y) $(fs-y)
-export KBUILD_LDS          := arch/$(SRCARCH)/cpu/u-boot.lds
-export LDFLAGS_vmlinux
-
-vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
-
-# Final link of vmlinux
-      cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)
-quiet_cmd_link-vmlinux = LINK    $@
-
-# Include targets which we want to
-# execute if the rest of the kernel build went well.
-vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
-ifdef CONFIG_HEADERS_CHECK
-	$(Q)$(MAKE) -f $(MAKEFILE_NAME) headers_check
-endif
-ifdef CONFIG_SAMPLES
-	$(Q)$(MAKE) $(build)=samples
-endif
-ifdef CONFIG_BUILD_DOCSRC
-	$(Q)$(MAKE) $(build)=Documentation
-endif
-	+$(call if_changed,link-vmlinux)
-
-spl/u-boot:
-	$(Q)echo "SPL not yet supported"
-
-# The actual objects are generated when descending,
-# make sure no implicit rule kicks in
-$(sort $(vmlinux-deps)): $(vmlinux-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 += $(vmlinux-dirs)
-$(vmlinux-dirs): prepare scripts
-	$(Q)$(MAKE) $(build)=$@
-
-# Store (new) KERNELRELASE string in include/config/kernel.release
-include/config/kernel.release: include/config/auto.conf FORCE
-	$(Q)rm -f $@
-	$(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@
-
-
-# Things we need to do before we recursively start building the kernel
-# or the modules are listed in "prepare".
-# A multi level approach is used. prepareN is processed before prepareN-1.
-# archprepare is used in arch Makefiles and when processed asm symlink,
-# version.h and scripts_basic is processed / created.
-
-# Listed in dependency order
-PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
-
-# prepare3 is used to check if we are building in a separate output directory,
-# and if so do:
-# 1) Check that make has not been executed in the kernel src $(srctree)
-prepare3: include/config/kernel.release $(TIMESTAMP_FILE) $(VERSION_FILE)
-ifneq ($(KBUILD_SRC),)
-	@$(kecho) '  Using $(srctree) as source for kernel'
-	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
-		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
-		echo >&2 "  in the '$(srctree)' directory.";\
-		/bin/false; \
-	fi;
-endif
-
-# prepare2 creates a makefile if using a separate output directory
-prepare2: prepare3 outputmakefile asm-generic
-
-prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
-                   include/config/auto.conf
-	$(cmd_crmodverdir)
-
-archprepare: archheaders archscripts prepare1 scripts_basic
-
-prepare0: archprepare FORCE
-	$(Q)$(MAKE) $(build)=.
-
-# All the preparing..
-prepare: prepare0
-
-# Generate some files
-# ---------------------------------------------------------------------------
-
-# KERNELRELEASE can change from a few different places, meaning version.h
-# needs to be updated, so this check is forced on all builds
-
-$(VERSION_FILE):
-		@mkdir -p $(dir $(VERSION_FILE))
-		@( localvers='$(shell $(TOPDIR)/tools/setlocalversion $(TOPDIR))' ; \
-		   printf '#define PLAIN_VERSION "%s%s"\n' \
-			"$(U_BOOT_VERSION)" "$${localvers}" ; \
-		   printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
-			"$(U_BOOT_VERSION)" "$${localvers}" ; \
-		) > $@.tmp
-		@( printf '#define CC_VERSION_STRING "%s"\n' \
-		 '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
-		@( printf '#define LD_VERSION_STRING "%s"\n' \
-		 '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
-		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
-
-$(TIMESTAMP_FILE):
-		@mkdir -p $(dir $(TIMESTAMP_FILE))
-		@LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
-		@LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
-		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
-
-uts_len := 64
-define filechk_utsrelease.h
-	if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
-	  echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2;    \
-	  exit 1;                                                         \
-	fi;                                                               \
-	(echo #define UTS_RELEASE "$(KERNELRELEASE)";)
-endef
-
-define filechk_version.h
-	(echo #define LINUX_VERSION_CODE $(shell                         \
-	expr $(VERSION) * 65536 + 0$(PATCHLEVEL) * 256 + 0$(SUBLEVEL)); \
-	echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
-endef
-
-$(version_h): $(MAKEFILE_NAME) FORCE
-	$(call filechk,version.h)
-
-include/generated/utsrelease.h: include/config/kernel.release FORCE
-	$(call filechk,utsrelease.h)
-
-PHONY += headerdep
-headerdep:
-	$(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
-	$(srctree)/scripts/headerdep.pl -I$(srctree)/include
-
-# ---------------------------------------------------------------------------
-
-PHONY += depend dep
-depend dep:
-	@echo '*** Warning: make $@ is unnecessary now.'
-
-# ---------------------------------------------------------------------------
-# Firmware install
-INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
-export INSTALL_FW_PATH
-
-PHONY += firmware_install
-firmware_install: FORCE
-	@mkdir -p $(objtree)/firmware
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
-
-# ---------------------------------------------------------------------------
-# Kernel headers
-
-#Default location for installed headers
-export INSTALL_HDR_PATH = $(objtree)/usr
-
-hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
-
-# If we do an all arch process set dst to asm-$(hdr-arch)
-hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
-
-PHONY += archheaders
-archheaders:
-
-PHONY += archscripts
-archscripts:
-
-PHONY += __headers
-__headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
-	$(Q)$(MAKE) $(build)=scripts build_unifdef
-
-PHONY += headers_install_all
-headers_install_all:
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
-
-PHONY += headers_install
-headers_install: __headers
-	$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
-	  $(error Headers not exportable for the $(SRCARCH) architecture))
-	$(Q)$(MAKE) $(hdr-inst)=include/uapi
-	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
-
-PHONY += headers_check_all
-headers_check_all: headers_install_all
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
-
-PHONY += headers_check
-headers_check: headers_install
-	$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
-	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
-
-# ---------------------------------------------------------------------------
-# Modules
-
-ifdef CONFIG_MODULES
-
-# By default, build modules as well
-
-all: modules
-
-#	Build modules
-#
-#	A module can be listed more than once in obj-m resulting in
-#	duplicate lines in modules.order files.  Those are removed
-#	using awk while concatenating to the final file.
-
-PHONY += modules
-modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
-	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
-	@$(kecho) '  Building modules, stage 2.';
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
-
-modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
-	$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
-
-%/modules.builtin: include/config/auto.conf
-	$(Q)$(MAKE) $(modbuiltin)=$*
-
-
-# Target to prepare building external modules
-PHONY += modules_prepare
-modules_prepare: prepare scripts
-
-# Target to install modules
-PHONY += modules_install
-modules_install: _modinst_ _modinst_post
-
-PHONY += _modinst_
-_modinst_:
-	@rm -rf $(MODLIB)/kernel
-	@rm -f $(MODLIB)/source
-	@mkdir -p $(MODLIB)/kernel
-	@ln -s $(srctree) $(MODLIB)/source
-	@if [ ! $(objtree) -ef  $(MODLIB)/build ]; then \
-		rm -f $(MODLIB)/build ; \
-		ln -s $(objtree) $(MODLIB)/build ; \
-	fi
-	@cp -f $(objtree)/modules.order $(MODLIB)/
-	@cp -f $(objtree)/modules.builtin $(MODLIB)/
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
-
-# This depmod is only for convenience to give the initial
-# boot a modules.dep even before / is mounted read-write.  However the
-# boot script depmod is the master version.
-PHONY += _modinst_post
-_modinst_post: _modinst_
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
-	$(call cmd,depmod)
-
-ifeq ($(CONFIG_MODULE_SIG), y)
-PHONY += modules_sign
-modules_sign:
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
-endif
-
-else # CONFIG_MODULES
-
-# Modules not configured
-# ---------------------------------------------------------------------------
-
-modules modules_install: FORCE
-	@echo >&2
-	@echo >&2 "The present kernel configuration has modules disabled."
-	@echo >&2 "Type 'make config' and enable loadable module support."
-	@echo >&2 "Then build a kernel with module support enabled."
-	@echo >&2
-	@exit 1
-
-endif # CONFIG_MODULES
-
-###
-# 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)
-
-# Directories & files removed with 'make mrproper'
-MRPROPER_DIRS  += include/config usr/include include/generated          \
-                  arch/*/include/generated
-MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
-		  Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
-		  signing_key.priv signing_key.x509 x509.genkey		\
-		  extra_certificates signing_key.x509.keyid		\
-		  signing_key.x509.signer
-
-# clean - Delete most, but leave enough to build external modules
-#
-clean: rm-dirs  := $(CLEAN_DIRS)
-clean: rm-files := $(CLEAN_FILES)
-clean-dirs      := $(addprefix _clean_, . $(vmlinux-alldirs) doc)
-
-PHONY += $(clean-dirs) clean archclean vmlinuxclean
-$(clean-dirs):
-	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
-
-vmlinuxclean:
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
-
-clean: archclean vmlinuxclean
-
-# mrproper - Delete all generated files, including .config
-#
-mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
-mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
-mrproper-dirs      := $(addprefix _mrproper_,scripts)
-
-PHONY += $(mrproper-dirs) mrproper archmrproper
-$(mrproper-dirs):
-	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
-
-mrproper: clean archmrproper $(mrproper-dirs)
-	$(call cmd,rmdirs)
-	$(call cmd,rmfiles)
-
-# 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
-
-
-# Packaging of the kernel to various formats
-# ---------------------------------------------------------------------------
-# rpm target kept for backward compatibility
-package-dir	:= $(srctree)/scripts/package
-
-%src-pkg: FORCE
-	$(Q)$(MAKE) $(build)=$(package-dir) $@
-%pkg: include/config/kernel.release FORCE
-	$(Q)$(MAKE) $(build)=$(package-dir) $@
-rpm: include/config/kernel.release FORCE
-	$(Q)$(MAKE) $(build)=$(package-dir) $@
-
-
-# Brief documentation of the typical targets used
-# ---------------------------------------------------------------------------
-
-boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
-boards := $(notdir $(boards))
-board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
-board-dirs := $(sort $(notdir $(board-dirs:/=)))
-
-help:
-	@echo  'Cleaning targets:'
-	@echo  '  clean		  - Remove most generated files but keep the config and'
-	@echo  '                    enough build support to build external modules'
-	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
-	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
-	@echo  ''
-	@echo  'Configuration targets:'
-	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
-	@echo  ''
-	@echo  'Other generic targets:'
-	@echo  '  all		  - Build all targets marked with [*]'
-	@echo  '* vmlinux	  - Build the bare kernel'
-	@echo  '* modules	  - Build all modules'
-	@echo  '  modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
-	@echo  '  firmware_install- Install all firmware to INSTALL_FW_PATH'
-	@echo  '                    (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
-	@echo  '  dir/            - Build all files in dir and below'
-	@echo  '  dir/file.[oisS] - Build specified target only'
-	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
-	@echo  '                    (requires a recent binutils and recent build (System.map))'
-	@echo  '  dir/file.ko     - Build module including final link'
-	@echo  '  modules_prepare - Set up for building external modules'
-	@echo  '  tags/TAGS	  - Generate tags file for editors'
-	@echo  '  cscope	  - Generate cscope index'
-	@echo  '  gtags           - Generate GNU GLOBAL index'
-	@echo  '  kernelrelease	  - Output the release version string'
-	@echo  '  kernelversion	  - Output the version stored in Makefile'
-	@echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
-	 echo  '                    (default: $(INSTALL_HDR_PATH))'; \
-	 echo  ''
-	@echo  'Static analysers'
-	@echo  '  checkstack      - Generate a list of stack hogs'
-	@echo  '  namespacecheck  - Name space analysis on compiled kernel'
-	@echo  '  versioncheck    - Sanity check on version.h usage'
-	@echo  '  includecheck    - Check for duplicate included header files'
-	@echo  '  export_report   - List the usages of all exported symbols'
-	@echo  '  headers_check   - Sanity check on exported headers'
-	@echo  '  headerdep       - Detect inclusion cycles in headers'
-	@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
-	@echo  ''
-	@echo  'Kernel packaging:'
-	@$(MAKE) $(build)=$(package-dir) help
-	@echo  ''
-	@echo  'Documentation targets:'
-	@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
-	@echo  ''
-	@echo  'Architecture specific targets ($(SRCARCH)):'
-	@$(if $(archhelp),$(archhelp),\
-		echo '  No architecture specific help defined for $(SRCARCH)')
-	@echo  ''
-	@$(if $(boards), \
-		$(foreach b, $(boards), \
-		printf "  %-24s - Build for %s\n" $(b) $(subst _defconfig,,$(b));) \
-		echo '')
-	@$(if $(board-dirs), \
-		$(foreach b, $(board-dirs), \
-		printf "  %-16s - Show %s-specific targets\n" help-$(b) $(b);) \
-		printf "  %-16s - Show all of the above\n" help-boards; \
-		echo '')
-
-	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
-	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
-	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
-	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
-	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
-	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
-	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
-	@echo  '		1: warnings which may be relevant and do not occur too often'
-	@echo  '		2: warnings which occur quite often but may still be relevant'
-	@echo  '		3: more obscure warnings, can most likely be ignored'
-	@echo  '		Multiple levels can be combined with W=12 or W=123'
-	@echo  ''
-	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
-	@echo  'For further info see the ./README file'
-
-
-help-board-dirs := $(addprefix help-,$(board-dirs))
-
-help-boards: $(help-board-dirs)
-
-boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
-
-$(help-board-dirs): help-%:
-	@echo  'Architecture specific targets ($(SRCARCH) $*):'
-	@$(if $(boards-per-dir), \
-		$(foreach b, $(boards-per-dir), \
-		printf "  %-24s - Build for %s\n" $*/$(b) $(subst _defconfig,,$(b));) \
-		echo '')
-
-
-# Documentation targets
-# ---------------------------------------------------------------------------
-%docs: scripts_basic FORCE
-	$(Q)$(MAKE) $(build)=scripts build_docproc
-	$(Q)$(MAKE) $(build)=Documentation/DocBook $@
-
-else # KBUILD_EXTMOD
-
-###
-# External module support.
-# When building external modules the kernel used as basis is considered
-# read-only, and no consistency checks are made and the make
-# system is not used on the basis kernel. If updates are required
-# in the basis kernel ordinary make commands (without M=...) must
-# be used.
-#
-# The following are the only valid targets when building external
-# modules.
-# make M=dir clean     Delete all automatically generated files
-# make M=dir modules   Make all modules in specified dir
-# make M=dir	       Same as 'make M=dir modules'
-# make M=dir modules_install
-#                      Install the modules built in the module directory
-#                      Assumes install directory is already created
-
-# We are always building modules
-KBUILD_MODULES := 1
-PHONY += crmodverdir
-crmodverdir:
-	$(cmd_crmodverdir)
-
-PHONY += $(objtree)/Module.symvers
-$(objtree)/Module.symvers:
-	@test -e $(objtree)/Module.symvers || ( \
-	echo; \
-	echo "  WARNING: Symbol version dump $(objtree)/Module.symvers"; \
-	echo "           is missing; modules will have no dependencies and modversions."; \
-	echo )
-
-module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
-PHONY += $(module-dirs) modules
-$(module-dirs): crmodverdir $(objtree)/Module.symvers
-	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
-
-modules: $(module-dirs)
-	@$(kecho) '  Building modules, stage 2.';
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
-
-PHONY += modules_install
-modules_install: _emodinst_ _emodinst_post
-
-install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
-PHONY += _emodinst_
-_emodinst_:
-	$(Q)mkdir -p $(MODLIB)/$(install-dir)
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
-
-PHONY += _emodinst_post
-_emodinst_post: _emodinst_
-	$(call cmd,depmod)
-
-clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
-
-PHONY += $(clean-dirs) clean
-$(clean-dirs):
-	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
-
-clean:	rm-dirs := $(MODVERDIR)
-clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
-
-help:
-	@echo  '  Building external modules.'
-	@echo  '  Syntax: make -C path/to/kernel/src M=$$PWD target'
-	@echo  ''
-	@echo  '  modules         - default target, build the module(s)'
-	@echo  '  modules_install - install the module'
-	@echo  '  clean           - remove generated files in module directory only'
-	@echo  ''
-
-# Dummies...
-PHONY += prepare scripts
-prepare: ;
-scripts: ;
-endif # KBUILD_EXTMOD
-
-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 '.*.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
-
-# Generate tags for editors
-# ---------------------------------------------------------------------------
-quiet_cmd_tags = GEN     $@
-      cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
-
-tags TAGS cscope gtags: FORCE
-	$(call cmd,tags)
-
-# Scripts to check various things for consistency
-# ---------------------------------------------------------------------------
-
-PHONY += includecheck versioncheck coccicheck namespacecheck export_report
-
-includecheck:
-	find $(srctree)/* $(RCS_FIND_IGNORE) \
-		-name '*.[hcS]' -type f -print | sort \
-		| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
-
-versioncheck:
-	find $(srctree)/* $(RCS_FIND_IGNORE) \
-		-name '*.[hcS]' -type f -print | sort \
-		| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
-
-coccicheck:
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
-
-namespacecheck:
-	$(PERL) $(srctree)/scripts/namespace.pl
-
-export_report:
-	$(PERL) $(srctree)/scripts/export_report.pl
-
-endif #ifeq ($(config-targets),1)
-endif #ifeq ($(mixed-targets),1)
-
-PHONY += checkstack kernelrelease kernelversion
-
-# UML needs a little special treatment here.  It wants to use the host
-# toolchain, so needs $(SUBARCH) passed to checkstack.pl.  Everyone
-# else wants $(ARCH), including people doing cross-builds, which means
-# that $(SUBARCH) doesn't work here.
-ifeq ($(ARCH), um)
-CHECKSTACK_ARCH := $(SUBARCH)
-else
-CHECKSTACK_ARCH := $(ARCH)
-endif
-checkstack:
-	$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
-	$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
-
-kernelrelease:
-	@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
-
-kernelversion:
-	@echo $(KERNELVERSION)
-
-# Clear a bunch of variables before executing the submake
-tools/: FORCE
-	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/
-
-tools/%: FORCE
-	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS= O=$(objtree) subdir=tools -C $(src)/tools/ $*
-
-# Single targets
-# ---------------------------------------------------------------------------
-# Single targets are compatible with:
-# - build with mixed source and output
-# - build with separate output dir 'make O=...'
-# - external modules
-#
-#  target-dir => where to store outputfile
-#  build-dir  => directory in kernel source tree to use
-
-ifeq ($(KBUILD_EXTMOD),)
-        build-dir  = $(patsubst %/,%,$(dir $@))
-        target-dir = $(dir $@)
-else
-        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
-        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
-        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
-endif
-
-%.s: %.c prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.i: %.c prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.o: %.c prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.lst: %.c prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.s: %.S prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.o: %.S prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.symtypes: %.c prepare scripts FORCE
-	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-
-# Modules
-/: prepare scripts FORCE
-	$(cmd_crmodverdir)
-	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
-	$(build)=$(build-dir)
-%/: prepare scripts FORCE
-	$(cmd_crmodverdir)
-	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
-	$(build)=$(build-dir)
-%.ko: prepare scripts FORCE
-	$(cmd_crmodverdir)
-	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
-	$(build)=$(build-dir) $(@:.ko=.o)
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
-
-# FIXME Should go into a make.lib or something
-# ===========================================================================
-
-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)
-
-# Run depmod only if we have System.map and depmod is executable
-quiet_cmd_depmod = DEPMOD  $(KERNELRELEASE)
-      cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
-                   $(KERNELRELEASE)
-
-# Create temporary dir for module support files
-# clean it up only when building all modules
-cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
-                  $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
-
-# read all saved command lines
-
-targets := $(wildcard $(sort $(targets)))
-cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
-
-ifneq ($(cmd_files),)
-  $(cmd_files): ;	# Do not try to update included dependency files
-  include $(cmd_files)
-endif
-
-# 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/Makefile.legacy b/Makefile.legacy
new file mode 100644
index 0000000..dbc4b70
--- /dev/null
+++ b/Makefile.legacy
@@ -0,0 +1,900 @@
+#
+# (C) Copyright 2000-2012
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundatio; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+VERSION = 2013
+PATCHLEVEL = 04
+SUBLEVEL =
+EXTRAVERSION =
+ifneq "$(SUBLEVEL)" ""
+U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
+else
+U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
+endif
+TIMESTAMP_FILE = $(obj)include/generated/timestamp_autogenerated.h
+VERSION_FILE = $(obj)include/generated/version_autogenerated.h
+
+HOSTARCH := $(shell uname -m | \
+	sed -e s/i.86/x86/ \
+	    -e s/sun4u/sparc64/ \
+	    -e s/arm.*/arm/ \
+	    -e s/sa110/arm/ \
+	    -e s/ppc64/powerpc/ \
+	    -e s/ppc/powerpc/ \
+	    -e s/macppc/powerpc/\
+	    -e s/sh.*/sh/)
+
+HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
+	    sed -e 's/(cygwin).*/cygwin/')
+
+export	HOSTARCH HOSTOS
+
+# Deal with colliding definitions from tcsh etc.
+VENDOR=
+
+#########################################################################
+# Allow for silent builds
+ifeq (,$(findstring s,$(MAKEFLAGS)))
+XECHO = echo
+else
+XECHO = :
+endif
+
+#########################################################################
+#
+# U-boot build supports producing a object files to the separate external
+# directory. Two use cases are supported:
+#
+# 1) Add O= to the make command line
+# 'make O=/tmp/build all'
+#
+# 2) Set environement variable BUILD_DIR to point to the desired location
+# 'export BUILD_DIR=/tmp/build'
+# 'make'
+#
+# The second approach can also be used with a MAKEALL script
+# 'export BUILD_DIR=/tmp/build'
+# './MAKEALL'
+#
+# Command line 'O=' setting overrides BUILD_DIR environent variable.
+#
+# When none of the above methods is used the local build is performed and
+# the object files are placed in the source directory.
+#
+
+ifdef O
+ifeq ("$(origin O)", "command line")
+BUILD_DIR := $(O)
+endif
+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.
+
+ifdef C
+ifeq ("$(origin C)", "command line")
+CHECKSRC := $(C)
+endif
+endif
+ifndef CHECKSRC
+  CHECKSRC = 0
+endif
+export CHECKSRC
+
+ifneq ($(BUILD_DIR),)
+saved-output := $(BUILD_DIR)
+
+# 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),)
+
+OBJTREE		:= $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
+SPLTREE		:= $(OBJTREE)/spl
+SRCTREE		:= $(CURDIR)
+TOPDIR		:= $(SRCTREE)
+LNDIR		:= $(OBJTREE)
+export	TOPDIR SRCTREE OBJTREE SPLTREE
+
+MKCONFIG	:= $(SRCTREE)/mkconfig
+export MKCONFIG
+
+ifneq ($(OBJTREE),$(SRCTREE))
+REMOTE_BUILD	:= 1
+export REMOTE_BUILD
+endif
+
+# $(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)/
+else
+obj :=
+src :=
+endif
+export obj src
+
+# Make sure CDPATH settings don't interfere
+unexport CDPATH
+
+#########################################################################
+
+# 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
+SUBDIR_EXAMPLES = examples/standalone examples/api
+SUBDIRS = $(SUBDIR_TOOLS)
+
+.PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
+
+ifeq ($(obj)include/config.mk,$(wildcard $(obj)include/config.mk))
+
+# 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
+
+ifndef CONFIG_SANDBOX
+SUBDIRS += $(SUBDIR_EXAMPLES)
+endif
+
+# load ARCH, BOARD, and CPU configuration
+include $(obj)include/config.mk
+export	ARCH CPU BOARD VENDOR SOC
+
+# set default to nothing for native builds
+ifeq ($(HOSTARCH),$(ARCH))
+CROSS_COMPILE ?=
+endif
+
+# load other configuration
+include $(TOPDIR)/config.mk
+
+# Targets which don't build the source code
+NON_BUILD_TARGETS = backup clean clobber distclean mkproper tidy unconfig
+
+# Only do the generic board check when actually building, not configuring
+ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
+ifeq ($(findstring _config,$(MAKECMDGOALS)),)
+$(CHECK_GENERIC_BOARD)
+endif
+endif
+
+# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
+# that (or fail if absent).  Otherwise, search for a linker script in a
+# standard location.
+
+LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
+
+ifndef LDSCRIPT
+	#LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
+	ifdef CONFIG_SYS_LDSCRIPT
+		# need to strip off double quotes
+		LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT))
+	endif
+endif
+
+# If there is no specified link script, we look in a number of places for it
+ifndef LDSCRIPT
+	ifeq ($(CONFIG_NAND_U_BOOT),y)
+		LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+		ifeq ($(wildcard $(LDSCRIPT)),)
+			LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
+		endif
+	endif
+	ifeq ($(wildcard $(LDSCRIPT)),)
+		LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
+	endif
+	ifeq ($(wildcard $(LDSCRIPT)),)
+		LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
+	endif
+	ifeq ($(wildcard $(LDSCRIPT)),)
+		LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
+		# We don't expect a Makefile here
+		LDSCRIPT_MAKEFILE_DIR =
+	endif
+	ifeq ($(wildcard $(LDSCRIPT)),)
+$(error could not find linker script)
+	endif
+endif
+
+#########################################################################
+# U-Boot objects....order is important (i.e. start must be first)
+
+OBJS  = $(CPUDIR)/start.o
+ifeq ($(CPU),ppc4xx)
+OBJS += $(CPUDIR)/resetvec.o
+endif
+ifeq ($(CPU),mpc85xx)
+OBJS += $(CPUDIR)/resetvec.o
+endif
+
+OBJS := $(addprefix $(obj),$(OBJS))
+
+HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
+
+LIBS-y += lib/libgeneric.o
+LIBS-y += lib/lzma/liblzma.o
+LIBS-y += lib/lzo/liblzo.o
+LIBS-y += lib/zlib/libz.o
+LIBS-$(CONFIG_TIZEN) += lib/tizen/libtizen.o
+LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
+LIBS-y += $(CPUDIR)/lib$(CPU).o
+ifdef SOC
+LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
+endif
+ifeq ($(CPU),ixp)
+LIBS-y += drivers/net/npe/libnpe.o
+endif
+LIBS-$(CONFIG_OF_EMBED) += dts/libdts.o
+LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
+LIBS-y += fs/libfs.o \
+	fs/cbfs/libcbfs.o \
+	fs/cramfs/libcramfs.o \
+	fs/ext4/libext4fs.o \
+	fs/fat/libfat.o \
+	fs/fdos/libfdos.o \
+	fs/jffs2/libjffs2.o \
+	fs/reiserfs/libreiserfs.o \
+	fs/sandbox/libsandboxfs.o \
+	fs/ubifs/libubifs.o \
+	fs/yaffs2/libyaffs2.o \
+	fs/zfs/libzfs.o
+LIBS-y += net/libnet.o
+LIBS-y += disk/libdisk.o
+LIBS-y += drivers/bios_emulator/libatibiosemu.o
+LIBS-y += drivers/block/libblock.o
+LIBS-$(CONFIG_BOOTCOUNT_LIMIT) += drivers/bootcount/libbootcount.o
+LIBS-y += drivers/crypto/libcrypto.o
+LIBS-y += drivers/dma/libdma.o
+LIBS-y += drivers/fpga/libfpga.o
+LIBS-y += drivers/gpio/libgpio.o
+LIBS-y += drivers/hwmon/libhwmon.o
+LIBS-y += drivers/i2c/libi2c.o
+LIBS-y += drivers/input/libinput.o
+LIBS-y += drivers/misc/libmisc.o
+LIBS-y += drivers/mmc/libmmc.o
+LIBS-y += drivers/mtd/libmtd.o
+LIBS-y += drivers/mtd/nand/libnand.o
+LIBS-y += drivers/mtd/onenand/libonenand.o
+LIBS-y += drivers/mtd/ubi/libubi.o
+LIBS-y += drivers/mtd/spi/libspi_flash.o
+LIBS-y += drivers/net/libnet.o
+LIBS-y += drivers/net/phy/libphy.o
+LIBS-y += drivers/pci/libpci.o
+LIBS-y += drivers/pcmcia/libpcmcia.o
+LIBS-y += drivers/power/libpower.o \
+	drivers/power/fuel_gauge/libfuel_gauge.o \
+	drivers/power/pmic/libpmic.o \
+	drivers/power/battery/libbattery.o
+LIBS-y += drivers/spi/libspi.o
+LIBS-y += drivers/dfu/libdfu.o
+ifeq ($(CPU),mpc83xx)
+LIBS-y += drivers/qe/libqe.o
+LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
+LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
+endif
+ifeq ($(CPU),mpc85xx)
+LIBS-y += drivers/qe/libqe.o
+LIBS-y += drivers/net/fm/libfm.o
+LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
+LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
+endif
+ifeq ($(CPU),mpc86xx)
+LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
+LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
+endif
+LIBS-y += drivers/rtc/librtc.o
+LIBS-y += drivers/serial/libserial.o
+LIBS-y += drivers/sound/libsound.o
+LIBS-y += drivers/tpm/libtpm.o
+LIBS-y += drivers/twserial/libtws.o
+LIBS-y += drivers/usb/eth/libusb_eth.o
+LIBS-y += drivers/usb/gadget/libusb_gadget.o
+LIBS-y += drivers/usb/host/libusb_host.o
+LIBS-y += drivers/usb/musb/libusb_musb.o
+LIBS-y += drivers/usb/musb-new/libusb_musb-new.o
+LIBS-y += drivers/usb/phy/libusb_phy.o
+LIBS-y += drivers/usb/ulpi/libusb_ulpi.o
+LIBS-y += drivers/video/libvideo.o
+LIBS-y += drivers/watchdog/libwatchdog.o
+LIBS-y += common/libcommon.o
+LIBS-y += lib/libfdt/libfdt.o
+LIBS-y += api/libapi.o
+LIBS-y += post/libpost.o
+LIBS-y += test/libtest.o
+
+ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TI814X),)
+LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
+endif
+
+ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
+LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
+endif
+
+ifeq ($(SOC),s5pc1xx)
+LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
+endif
+ifeq ($(SOC),exynos)
+LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
+endif
+ifneq ($(CONFIG_TEGRA),)
+LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
+LIBS-y += arch/$(ARCH)/cpu/tegra-common/libcputegra-common.o
+LIBS-y += $(CPUDIR)/tegra-common/libtegra-common.o
+endif
+
+LIBS := $(addprefix $(obj),$(sort $(LIBS-y)))
+.PHONY : $(LIBS)
+
+LIBBOARD = board/$(BOARDDIR)/lib$(BOARD).o
+LIBBOARD := $(addprefix $(obj),$(LIBBOARD))
+
+# Add GCC lib
+ifdef USE_PRIVATE_LIBGCC
+ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
+PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
+else
+PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
+endif
+else
+PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
+endif
+PLATFORM_LIBS += $(PLATFORM_LIBGCC)
+export PLATFORM_LIBS
+
+# Special flags for CPP when processing the linker script.
+# Pass the version down so we can handle backwards compatibility
+# on the fly.
+LDPPFLAGS += \
+	-include $(TOPDIR)/include/u-boot/u-boot.lds.h \
+	-DCPUDIR=$(CPUDIR) \
+	$(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)) $(subst $(obj),,$(LIBBOARD))
+
+#########################################################################
+#########################################################################
+
+ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
+BOARD_SIZE_CHECK = \
+	@actual=`wc -c $@ | awk '{print $$1}'`; \
+	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
+	if test $$actual -gt $$limit; then \
+		echo "$@ exceeds file size limit:" >&2 ; \
+		echo "  limit:  $$limit bytes" >&2 ; \
+		echo "  actual: $$actual bytes" >&2 ; \
+		echo "  excess: $$((actual - limit)) bytes" >&2; \
+		exit 1; \
+	fi
+else
+BOARD_SIZE_CHECK =
+endif
+
+# Always append ALL so that arch config.mk's can add custom ones
+ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
+
+ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin
+ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
+ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
+ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
+ifneq ($(CONFIG_SPL_TARGET),)
+ALL-$(CONFIG_SPL) += $(obj)$(subst ",,$(CONFIG_SPL_TARGET))
+endif
+
+# enable combined SPL/u-boot/dtb rules for tegra
+ifneq ($(CONFIG_TEGRA),)
+ifeq ($(CONFIG_OF_SEPARATE),y)
+ALL-y += $(obj)u-boot-dtb-tegra.bin
+else
+ALL-y += $(obj)u-boot-nodtb-tegra.bin
+endif
+endif
+
+all:		$(ALL-y) $(SUBDIR_EXAMPLES)
+
+$(obj)u-boot.dtb:	$(obj)u-boot
+		$(MAKE) -C dts binary
+		mv $(obj)dts/dt.dtb $@
+
+$(obj)u-boot-dtb.bin:	$(obj)u-boot.bin $(obj)u-boot.dtb
+		cat $^ >$@
+
+$(obj)u-boot.hex:	$(obj)u-boot
+		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
+
+$(obj)u-boot.srec:	$(obj)u-boot
+		$(OBJCOPY) -O srec $< $@
+
+$(obj)u-boot.bin:	$(obj)u-boot
+		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+		$(BOARD_SIZE_CHECK)
+
+$(obj)u-boot.ldr:	$(obj)u-boot
+		$(CREATE_LDR_ENV)
+		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
+		$(BOARD_SIZE_CHECK)
+
+$(obj)u-boot.ldr.hex:	$(obj)u-boot.ldr
+		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
+
+$(obj)u-boot.ldr.srec:	$(obj)u-boot.ldr
+		$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
+
+#
+# U-Boot entry point, needed for booting of full-blown U-Boot
+# from the SPL U-Boot version.
+#
+ifndef CONFIG_SYS_UBOOT_START
+CONFIG_SYS_UBOOT_START := 0
+endif
+
+$(obj)u-boot.img:	$(obj)u-boot.bin
+		$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
+		-O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
+		-e $(CONFIG_SYS_UBOOT_START) \
+		-n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
+			sed -e 's/"[	 ]*$$/ for $(BOARD) board"/') \
+		-d $< $@
+
+$(obj)u-boot.imx: $(obj)u-boot.bin depend
+		$(MAKE) -C $(SRCTREE)/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 \
+		-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
+
+$(obj)u-boot.pbl:	$(obj)u-boot.bin
+		$(obj)tools/mkimage -n $(CONFIG_PBLRCW_CONFIG) \
+		-R $(CONFIG_PBLPBI_CONFIG) -T pblimage \
+		-d $< $@
+
+$(obj)u-boot.sha1:	$(obj)u-boot.bin
+		$(obj)tools/ubsha1 $(obj)u-boot.bin
+
+$(obj)u-boot.dis:	$(obj)u-boot
+		$(OBJDUMP) -d $< > $@
+
+
+
+$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
+		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO) \
+			-I binary -O binary $< $(obj)spl/u-boot-spl-pad.bin
+		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
+		rm $(obj)spl/u-boot-spl-pad.bin
+
+$(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
+		$(MAKE) -C $(SRCTREE)/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) -C $(SRCTREE)/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 $< $(obj)u-boot.ubl
+
+$(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") \
+			-T aisimage \
+			-e $(CONFIG_SPL_TEXT_BASE) \
+			-d $(obj)spl/u-boot-spl.bin \
+			$(obj)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 > \
+			$(obj)u-boot.ais
+
+# Specify the target for use in elftosb call
+ELFTOSB_TARGET-$(CONFIG_MX23) = imx23
+ELFTOSB_TARGET-$(CONFIG_MX28) = imx28
+
+$(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
+		elftosb -zf $(ELFTOSB_TARGET-y) -c $(TOPDIR)/$(CPUDIR)/$(SOC)/u-boot-$(ELFTOSB_TARGET-y).bd \
+			-o $(obj)u-boot.sb
+
+# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
+# Both images are created using mkimage (crc etc), so that the ROM
+# bootloader can check its integrity. Padding needs to be done to the
+# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
+# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
+# The resulting image containing both U-Boot images is called u-boot.spr
+$(obj)u-boot.spr:	$(obj)u-boot.img $(obj)spl/u-boot-spl.bin
+		$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
+		-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
+		-d $(obj)spl/u-boot-spl.bin $(obj)spl/u-boot-spl.img
+		tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_SPL_PAD_TO) \
+			of=$(obj)spl/u-boot-spl-pad.img 2>/dev/null
+		dd if=$(obj)spl/u-boot-spl.img of=$(obj)spl/u-boot-spl-pad.img \
+			conv=notrunc 2>/dev/null
+		cat $(obj)spl/u-boot-spl-pad.img $(obj)u-boot.img > $@
+
+ifneq ($(CONFIG_TEGRA),)
+ifeq ($(CONFIG_OF_SEPARATE),y)
+nodtb=dtb
+dtbfile=$(obj)u-boot.dtb
+else
+nodtb=nodtb
+dtbfile=
+endif
+
+$(obj)u-boot-$(nodtb)-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin $(dtbfile)
+		$(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 $(dtbfile) > $@
+		rm $(obj)spl/u-boot-spl-pad.bin
+endif
+
+$(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 > $@
+
+# PPC4xx needs the SPL at the end of the image, since the reset vector
+# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
+# and need to introduce a new build target with the full blown U-Boot
+# at the start padded up to the start of the SPL image. And then concat
+# the SPL image to the end.
+$(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
+		tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_UBOOT_PAD_TO) \
+			of=$(obj)u-boot-pad.img 2>/dev/null
+		dd if=$(obj)u-boot.img of=$(obj)u-boot-pad.img \
+			conv=notrunc 2>/dev/null
+		cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@
+
+ifeq ($(CONFIG_SANDBOX),y)
+GEN_UBOOT = \
+		cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
+			-Wl,--start-group $(__LIBS) -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 $(PLATFORM_LIBS) \
+			-Map u-boot.map -o u-boot
+endif
+
+$(obj)u-boot:	depend \
+		$(SUBDIR_TOOLS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds
+		$(GEN_UBOOT)
+ifeq ($(CONFIG_KALLSYMS),y)
+		smap=`$(call SYSTEM_MAP,$(obj)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) $(obj)common/system_map.o
+endif
+
+$(OBJS):	depend
+		$(MAKE) -C $(CPUDIR) $(if $(REMOTE_BUILD),$@,$(notdir $@))
+
+$(LIBS):	depend $(SUBDIR_TOOLS)
+		$(MAKE) -C $(dir $(subst $(obj),,$@))
+
+$(LIBBOARD):	depend $(LIBS)
+		$(MAKE) -C $(dir $(subst $(obj),,$@))
+
+$(SUBDIRS):	depend
+		$(MAKE) -C $@ all
+
+$(SUBDIR_EXAMPLES): $(obj)u-boot
+
+$(LDSCRIPT):	depend
+		$(MAKE) -C $(dir $@) $(notdir $@)
+
+$(obj)u-boot.lds: $(LDSCRIPT)
+		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
+
+nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
+		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
+
+$(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
+		cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
+
+$(obj)spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
+		$(MAKE) -C spl all
+
+updater:
+		$(MAKE) -C tools/updater all
+
+# 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/autoconf.mk \
+		$(obj)include/generated/generic-asm-offsets.h \
+		$(obj)include/generated/asm-offsets.h
+		for dir in $(SUBDIRS) $(CPUDIR) $(LDSCRIPT_MAKEFILE_DIR) ; do \
+			$(MAKE) -C $$dir _depend ; done
+
+TAG_SUBDIRS = $(SUBDIRS)
+TAG_SUBDIRS += $(dir $(__LIBS))
+TAG_SUBDIRS += include
+
+FIND := find
+FINDFLAGS := -L
+
+checkstack:
+		$(CROSS_COMPILE)objdump -d $(obj)u-boot \
+			`$(FIND) $(obj) -name u-boot-spl -print` | \
+			perl $(src)tools/checkstack.pl $(ARCH)
+
+tags ctags:
+		ctags -w -o $(obj)ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
+						-name '*.[chS]' -print`
+
+etags:
+		etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
+						-name '*.[chS]' -print`
+cscope:
+		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
+						cscope.files
+		cscope -b -q -k
+
+SYSTEM_MAP = \
+		$(NM) $1 | \
+		grep -v '(compiled)|(.o$$)|( [aUw] )|(..ng$$)|(LASH[RL]DI)' | \
+		LC_ALL=C sort
+$(obj)System.map:	$(obj)u-boot
+		@$(call SYSTEM_MAP,$<) > $(obj)System.map
+
+checkthumb:
+	@if test $(call cc-version) -lt 0404; then \
+		echo -n '*** Your GCC does not produce working '; \
+		echo 'binaries in THUMB mode.'; \
+		echo '*** Your board is configured for THUMB mode.'; \
+		false; \
+	fi
+
+# GCC 3.x is reported to have problems generating the type of relocation
+# that U-Boot wants.
+# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
+checkgcc4:
+	@if test $(call cc-version) -lt 0400; then \
+		echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
+		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 $@ ; \
+	set -e ; \
+	: Generate the dependancies ; \
+	$(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
+		-MQ $(obj)include/autoconf.mk include/common.h > $@
+
+$(obj)include/autoconf.mk: $(obj)include/config.h
+	@$(XECHO) Generating $@ ; \
+	set -e ; \
+	: Extract the config macros ; \
+	$(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h | \
+		sed -n -f tools/scripts/define2mk.sed > $@.tmp && \
+	mv $@.tmp $@
+
+$(obj)include/generated/generic-asm-offsets.h:	$(obj)include/autoconf.mk.dep \
+	$(obj)lib/asm-offsets.s
+	@$(XECHO) Generating $@
+	tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@
+
+$(obj)lib/asm-offsets.s:	$(obj)include/autoconf.mk.dep \
+	$(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
+
+$(obj)include/generated/asm-offsets.h:	$(obj)include/autoconf.mk.dep \
+	$(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
+	@$(XECHO) Generating $@
+	tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@
+
+$(obj)$(CPUDIR)/$(SOC)/asm-offsets.s:	$(obj)include/autoconf.mk.dep
+	@mkdir -p $(obj)$(CPUDIR)/$(SOC)
+	if [ -f $(src)$(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; \
+	else \
+		touch $@; \
+	fi
+
+#########################################################################
+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)) \
+updater 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
+
+$(VERSION_FILE):
+		@mkdir -p $(dir $(VERSION_FILE))
+		@( localvers='$(shell $(TOPDIR)/tools/setlocalversion $(TOPDIR))' ; \
+		   printf '#define PLAIN_VERSION "%s%s"\n' \
+			"$(U_BOOT_VERSION)" "$${localvers}" ; \
+		   printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
+			"$(U_BOOT_VERSION)" "$${localvers}" ; \
+		) > $@.tmp
+		@( printf '#define CC_VERSION_STRING "%s"\n' \
+		 '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
+		@( printf '#define LD_VERSION_STRING "%s"\n' \
+		 '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
+		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
+
+$(TIMESTAMP_FILE):
+		@mkdir -p $(dir $(TIMESTAMP_FILE))
+		@LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
+		@LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
+		@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
+
+easylogo env gdb:
+	$(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
+gdbtools: gdb
+
+xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
+	$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
+
+tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
+	$(MAKE) -C tools HOST_TOOLS_ALL=y
+
+.PHONY : CHANGELOG
+CHANGELOG:
+	git log --no-merges U-Boot-1_1_5.. | \
+	unexpand -a | sed -e 's/\s\s*$$//' > $@
+
+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 $(obj)include/autoconf.mk.dep
+
+%_config::	unconfig
+	@$(MKCONFIG) -A $(@:_config=)
+
+sinclude $(obj).boards.depend
+$(obj).boards.depend:	boards.cfg
+	@awk '(NF && $$1 !~ /^#/) { print $$1 ": " $$1 "_config; $$(MAKE)" }' $< > $@
+
+#
+# Functions to generate common board directory names
+#
+lcname	= $(shell echo $(1) | sed -e 's/(.*)_config/\L\1/')
+ucname	= $(shell echo $(1) | sed -e 's/(.*)_config/\U\1/')
+
+#########################################################################
+#########################################################################
+
+clean:
+	@rm -f $(obj)examples/standalone/82559_eeprom			  \
+	       $(obj)examples/standalone/atmel_df_pow2			  \
+	       $(obj)examples/standalone/eepro100_eeprom		  \
+	       $(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,fw_setenv}			  \
+	       $(obj)tools/envcrc					  \
+	       $(obj)tools/gdb/{astest,gdbcont,gdbsend}			  \
+	       $(obj)tools/gen_eth_addr    $(obj)tools/img2srec		  \
+	       $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk	  \
+	       $(obj)tools/mk{smdk5250,}spl				  \
+	       $(obj)tools/mxsboot					  \
+	       $(obj)tools/ncb		   $(obj)tools/ubsha1		  \
+	       $(obj)tools/kernel-doc/docproc
+	@rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}	  \
+	       $(obj)board/matrix_vision/*/bootscript.img		  \
+	       $(obj)board/voiceblue/eeprom 				  \
+	       $(obj)u-boot.lds						  \
+	       $(obj)arch/blackfin/cpu/bootrom-asm-offsets.[chs]	  \
+	       $(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)MLO MLO.byteswap
+	@rm -f $(obj)SPL
+	@rm -f $(obj)tools/xway-swap-bytes
+	@rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c
+	@rm -f $(obj)arch/powerpc/cpu/mpc83xx/ddr-gen?.c
+	@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
+
+backup:
+	F=`basename $(TOPDIR)` ; cd .. ; \
+	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
+
+#########################################################################
-- 
1.8.2.1


    