Makefile

   1 #
   2 # (C) Copyright 2000-2011
   3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 #
   5 # See file CREDITS for list of people who contributed to this
   6 # project.
   7 #
   8 # This program is free software; you can redistribute it and/or
   9 # modify it under the terms of the GNU General Public License as
  10 # published by the Free Software Foundatio; either version 2 of
  11 # the License, or (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 # MA 02111-1307 USA
  22 #
  23
  24 VERSION = 2011
  25 PATCHLEVEL = 09
  26 SUBLEVEL =
  27 EXTRAVERSION =
  28 ifneq "$(SUBLEVEL)" ""
  29 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
  30 else
  31 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
  32 endif
  33 TIMESTAMP_FILE = $(obj)include/generated/timestamp_autogenerated.h
  34 VERSION_FILE = $(obj)include/generated/version_autogenerated.h
  35
  36 HOSTARCH := $(shell uname -m | \
  37         sed -e s/i.86/x86/ \
  38             -e s/sun4u/sparc64/ \
  39             -e s/arm.*/arm/ \
  40             -e s/sa110/arm/ \
  41             -e s/ppc64/powerpc/ \
  42             -e s/ppc/powerpc/ \
  43             -e s/macppc/powerpc/\
  44             -e s/sh.*/sh/)
  45
  46 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
  47             sed -e 's/\(cygwin\).*/cygwin/')
  48
  49 # Set shell to bash if possible, otherwise fall back to sh
  50 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  51         else if [ -x /bin/bash ]; then echo /bin/bash; \
  52         else echo sh; fi; fi)
  53
  54 export  HOSTARCH HOSTOS SHELL
  55
  56 # Deal with colliding definitions from tcsh etc.
  57 VENDOR=
  58
  59 #########################################################################
  60 # Allow for silent builds
  61 ifeq (,$(findstring s,$(MAKEFLAGS)))
  62 XECHO = echo
  63 else
  64 XECHO = :
  65 endif
  66
  67 #########################################################################
  68 #
  69 # U-boot build supports producing a object files to the separate external
  70 # directory. Two use cases are supported:
  71 #
  72 # 1) Add O= to the make command line
  73 # 'make O=/tmp/build all'
  74 #
  75 # 2) Set environement variable BUILD_DIR to point to the desired location
  76 # 'export BUILD_DIR=/tmp/build'
  77 # 'make'
  78 #
  79 # The second approach can also be used with a MAKEALL script
  80 # 'export BUILD_DIR=/tmp/build'
  81 # './MAKEALL'
  82 #
  83 # Command line 'O=' setting overrides BUILD_DIR environent variable.
  84 #
  85 # When none of the above methods is used the local build is performed and
  86 # the object files are placed in the source directory.
  87 #
  88
  89 ifdef O
  90 ifeq ("$(origin O)", "command line")
  91 BUILD_DIR := $(O)
  92 endif
  93 endif
  94
  95 ifneq ($(BUILD_DIR),)
  96 saved-output := $(BUILD_DIR)
  97
  98 # Attempt to create a output directory.
  99 $(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR})
 100
 101 # Verify if it was successful.
 102 BUILD_DIR := $(shell cd $(BUILD_DIR) && /bin/pwd)
 103 $(if $(BUILD_DIR),,$(error output directory "$(saved-output)" does not exist))
 104 endif # ifneq ($(BUILD_DIR),)
 105
 106 OBJTREE         := $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
 107 SPLTREE         := $(OBJTREE)/spl
 108 SRCTREE         := $(CURDIR)
 109 TOPDIR          := $(SRCTREE)
 110 LNDIR           := $(OBJTREE)
 111 export  TOPDIR SRCTREE OBJTREE SPLTREE
 112
 113 MKCONFIG        := $(SRCTREE)/mkconfig
 114 export MKCONFIG
 115
 116 ifneq ($(OBJTREE),$(SRCTREE))
 117 REMOTE_BUILD    := 1
 118 export REMOTE_BUILD
 119 endif
 120
 121 # $(obj) and (src) are defined in config.mk but here in main Makefile
 122 # we also need them before config.mk is included which is the case for
 123 # some targets like unconfig, clean, clobber, distclean, etc.
 124 ifneq ($(OBJTREE),$(SRCTREE))
 125 obj := $(OBJTREE)/
 126 src := $(SRCTREE)/
 127 else
 128 obj :=
 129 src :=
 130 endif
 131 export obj src
 132
 133 # Make sure CDPATH settings don't interfere
 134 unexport CDPATH
 135
 136 #########################################################################
 137
 138 # The "tools" are needed early, so put this first
 139 # Don't include stuff already done in $(LIBS)
 140 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
 141 # is "yes"), so compile examples after U-Boot is compiled.
 142 SUBDIR_TOOLS = tools
 143 SUBDIR_EXAMPLES = examples/standalone examples/api
 144 SUBDIRS = $(SUBDIR_TOOLS)
 145
 146 .PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
 147
 148 ifeq ($(obj)include/config.mk,$(wildcard $(obj)include/config.mk))
 149
 150 # Include autoconf.mk before config.mk so that the config options are available
 151 # to all top level build files.  We need the dummy all: target to prevent the
 152 # dependency target in autoconf.mk.dep from being the default.
 153 all:
 154 sinclude $(obj)include/autoconf.mk.dep
 155 sinclude $(obj)include/autoconf.mk
 156
 157 ifndef CONFIG_SANDBOX
 158 SUBDIRS += $(SUBDIR_EXAMPLES)
 159 endif
 160
 161 # load ARCH, BOARD, and CPU configuration
 162 include $(obj)include/config.mk
 163 export  ARCH CPU BOARD VENDOR SOC
 164
 165 # set default to nothing for native builds
 166 ifeq ($(HOSTARCH),$(ARCH))
 167 CROSS_COMPILE ?=
 168 endif
 169
 170 # load other configuration
 171 include $(TOPDIR)/config.mk
 172
 173 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 174 # that (or fail if absent).  Otherwise, search for a linker script in a
 175 # standard location.
 176
 177 ifndef LDSCRIPT
 178         #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
 179         ifdef CONFIG_SYS_LDSCRIPT
 180                 # need to strip off double quotes
 181                 LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT))
 182         endif
 183 endif
 184
 185 ifndef LDSCRIPT
 186         ifeq ($(CONFIG_NAND_U_BOOT),y)
 187                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
 188                 ifeq ($(wildcard $(LDSCRIPT)),)
 189                         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
 190                 endif
 191         endif
 192         ifeq ($(wildcard $(LDSCRIPT)),)
 193                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
 194         endif
 195         ifeq ($(wildcard $(LDSCRIPT)),)
 196                 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
 197         endif
 198         ifeq ($(wildcard $(LDSCRIPT)),)
 199 $(error could not find linker script)
 200         endif
 201 endif
 202
 203 #########################################################################
 204 # U-Boot objects....order is important (i.e. start must be first)
 205
 206 OBJS  = $(CPUDIR)/start.o
 207 ifeq ($(CPU),x86)
 208 OBJS += $(CPUDIR)/start16.o
 209 OBJS += $(CPUDIR)/resetvec.o
 210 endif
 211 ifeq ($(CPU),ppc4xx)
 212 OBJS += $(CPUDIR)/resetvec.o
 213 endif
 214 ifeq ($(CPU),mpc85xx)
 215 OBJS += $(CPUDIR)/resetvec.o
 216 endif
 217
 218 OBJS := $(addprefix $(obj),$(OBJS))
 219
 220 LIBS  = lib/libgeneric.o
 221 LIBS += lib/lzma/liblzma.o
 222 LIBS += lib/lzo/liblzo.o
 223 LIBS += lib/zlib/libz.o
 224 LIBS += $(shell if [ -f board/$(VENDOR)/common/Makefile ]; then echo \
 225         "board/$(VENDOR)/common/lib$(VENDOR).o"; fi)
 226 LIBS += $(CPUDIR)/lib$(CPU).o
 227 ifdef SOC
 228 LIBS += $(CPUDIR)/$(SOC)/lib$(SOC).o
 229 endif
 230 ifeq ($(CPU),ixp)
 231 LIBS += arch/arm/cpu/ixp/npe/libnpe.o
 232 endif
 233 ifeq ($(CONFIG_OF_EMBED),y)
 234 LIBS += dts/libdts.o
 235 endif
 236 LIBS += arch/$(ARCH)/lib/lib$(ARCH).o
 237 LIBS += fs/cramfs/libcramfs.o fs/fat/libfat.o fs/fdos/libfdos.o fs/jffs2/libjffs2.o \
 238         fs/reiserfs/libreiserfs.o fs/ext2/libext2fs.o fs/yaffs2/libyaffs2.o \
 239         fs/ubifs/libubifs.o
 240 LIBS += net/libnet.o
 241 LIBS += disk/libdisk.o
 242 LIBS += drivers/bios_emulator/libatibiosemu.o
 243 LIBS += drivers/block/libblock.o
 244 LIBS += drivers/dma/libdma.o
 245 LIBS += drivers/fpga/libfpga.o
 246 LIBS += drivers/gpio/libgpio.o
 247 LIBS += drivers/hwmon/libhwmon.o
 248 LIBS += drivers/i2c/libi2c.o
 249 LIBS += drivers/input/libinput.o
 250 LIBS += drivers/misc/libmisc.o
 251 LIBS += drivers/mmc/libmmc.o
 252 LIBS += drivers/mtd/libmtd.o
 253 LIBS += drivers/mtd/nand/libnand.o
 254 LIBS += drivers/mtd/onenand/libonenand.o
 255 LIBS += drivers/mtd/ubi/libubi.o
 256 LIBS += drivers/mtd/spi/libspi_flash.o
 257 LIBS += drivers/net/libnet.o
 258 LIBS += drivers/net/phy/libphy.o
 259 LIBS += drivers/pci/libpci.o
 260 LIBS += drivers/pcmcia/libpcmcia.o
 261 LIBS += drivers/power/libpower.o
 262 LIBS += drivers/spi/libspi.o
 263 ifeq ($(CPU),mpc83xx)
 264 LIBS += drivers/qe/libqe.o
 265 LIBS += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
 266 LIBS += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
 267 endif
 268 ifeq ($(CPU),mpc85xx)
 269 LIBS += drivers/qe/libqe.o
 270 LIBS += drivers/net/fm/libfm.o
 271 LIBS += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
 272 LIBS += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
 273 endif
 274 ifeq ($(CPU),mpc86xx)
 275 LIBS += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
 276 LIBS += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
 277 endif
 278 LIBS += drivers/rtc/librtc.o
 279 LIBS += drivers/serial/libserial.o
 280 LIBS += drivers/twserial/libtws.o
 281 LIBS += drivers/usb/eth/libusb_eth.o
 282 LIBS += drivers/usb/gadget/libusb_gadget.o
 283 LIBS += drivers/usb/host/libusb_host.o
 284 LIBS += drivers/usb/musb/libusb_musb.o
 285 LIBS += drivers/usb/phy/libusb_phy.o
 286 LIBS += drivers/video/libvideo.o
 287 LIBS += drivers/watchdog/libwatchdog.o
 288 LIBS += common/libcommon.o
 289 LIBS += lib/libfdt/libfdt.o
 290 LIBS += api/libapi.o
 291 LIBS += post/libpost.o
 292
 293 ifeq ($(SOC),am33xx)
 294 LIBS += $(CPUDIR)/omap-common/libomap-common.o
 295 endif
 296 ifeq ($(SOC),omap3)
 297 LIBS += $(CPUDIR)/omap-common/libomap-common.o
 298 endif
 299 ifeq ($(SOC),omap4)
 300 LIBS += $(CPUDIR)/omap-common/libomap-common.o
 301 endif
 302
 303 ifeq ($(SOC),s5pc1xx)
 304 LIBS += $(CPUDIR)/s5p-common/libs5p-common.o
 305 endif
 306 ifeq ($(SOC),s5pc2xx)
 307 LIBS += $(CPUDIR)/s5p-common/libs5p-common.o
 308 endif
 309
 310 LIBS := $(addprefix $(obj),$(sort $(LIBS)))
 311 .PHONY : $(LIBS)
 312
 313 LIBBOARD = board/$(BOARDDIR)/lib$(BOARD).o
 314 LIBBOARD := $(addprefix $(obj),$(LIBBOARD))
 315
 316 # Add GCC lib
 317 ifdef USE_PRIVATE_LIBGCC
 318 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 319 PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
 320 else
 321 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 322 endif
 323 else
 324 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
 325 endif
 326 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 327 export PLATFORM_LIBS
 328
 329 # Special flags for CPP when processing the linker script.
 330 # Pass the version down so we can handle backwards compatibility
 331 # on the fly.
 332 LDPPFLAGS += \
 333         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
 334         $(shell $(LD) --version | \
 335           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 336
 337 __OBJS := $(subst $(obj),,$(OBJS))
 338 __LIBS := $(subst $(obj),,$(LIBS)) $(subst $(obj),,$(LIBBOARD))
 339
 340 #########################################################################
 341 #########################################################################
 342
 343 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 344 BOARD_SIZE_CHECK = \
 345         @actual=`wc -c $@ | awk '{print $$1}'`; \
 346         limit=$(CONFIG_BOARD_SIZE_LIMIT); \
 347         if test $$actual -gt $$limit; then \
 348                 echo "$@ exceeds file size limit:"; \
 349                 echo "  limit:  $$limit bytes"; \
 350                 echo "  actual: $$actual bytes"; \
 351                 echo "  excess: $$((actual - limit)) bytes"; \
 352                 exit 1; \
 353         fi
 354 else
 355 BOARD_SIZE_CHECK =
 356 endif
 357
 358 # Always append ALL so that arch config.mk's can add custom ones
 359 ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
 360
 361 ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin
 362 ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
 363 ONENAND_BIN ?= $(obj)onenand_ipl/onenand-ipl-2k.bin
 364 ALL-$(CONFIG_MMC_U_BOOT) += $(obj)mmc_spl/u-boot-mmc-spl.bin
 365 ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
 366 ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
 367
 368 all:            $(ALL-y) $(SUBDIR_EXAMPLES)
 369
 370 $(obj)u-boot.dtb:       $(obj)u-boot
 371                 $(MAKE) -C dts binary
 372                 mv $(obj)dts/dt.dtb $@
 373
 374 $(obj)u-boot-dtb.bin:   $(obj)u-boot.bin $(obj)u-boot.dtb
 375                 cat $^ >$@
 376
 377 $(obj)u-boot.hex:       $(obj)u-boot
 378                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
 379
 380 $(obj)u-boot.srec:      $(obj)u-boot
 381                 $(OBJCOPY) -O srec $< $@
 382
 383 $(obj)u-boot.bin:       $(obj)u-boot
 384                 $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 385                 $(BOARD_SIZE_CHECK)
 386
 387 $(obj)u-boot.ldr:       $(obj)u-boot
 388                 $(CREATE_LDR_ENV)
 389                 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 390                 $(BOARD_SIZE_CHECK)
 391
 392 $(obj)u-boot.ldr.hex:   $(obj)u-boot.ldr
 393                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
 394
 395 $(obj)u-boot.ldr.srec:  $(obj)u-boot.ldr
 396                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
 397
 398 $(obj)u-boot.img:       $(obj)u-boot.bin
 399                 $(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
 400                 -O u-boot -a $(CONFIG_SYS_TEXT_BASE) -e 0 \
 401                 -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
 402                         sed -e 's/"[     ]*$$/ for $(BOARD) board"/') \
 403                 -d $< $@
 404
 405 $(obj)u-boot.imx:       $(obj)u-boot.bin
 406                 $(obj)tools/mkimage -n  $(CONFIG_IMX_CONFIG) -T imximage \
 407                 -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 408
 409 $(obj)u-boot.kwb:       $(obj)u-boot.bin
 410                 $(obj)tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
 411                 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 412
 413 $(obj)u-boot.sha1:      $(obj)u-boot.bin
 414                 $(obj)tools/ubsha1 $(obj)u-boot.bin
 415
 416 $(obj)u-boot.dis:       $(obj)u-boot
 417                 $(OBJDUMP) -d $< > $@
 418
 419 $(obj)u-boot.ubl:       $(obj)u-boot-nand.bin
 420                 $(obj)tools/mkimage -n $(UBL_CONFIG) -T ublimage \
 421                 -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 422
 423 ifeq ($(CONFIG_SANDBOX),y)
 424 GEN_UBOOT = \
 425                 cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
 426                         -Wl,--start-group $(__LIBS) -Wl,--end-group \
 427                         $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
 428 else
 429 GEN_UBOOT = \
 430                 UNDEF_SYM=`$(OBJDUMP) -x $(LIBBOARD) $(LIBS) | \
 431                 sed  -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
 432                 cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__OBJS) \
 433                         --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 434                         -Map u-boot.map -o u-boot
 435 endif
 436
 437 $(obj)u-boot:   depend \
 438                 $(SUBDIR_TOOLS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds
 439                 $(GEN_UBOOT)
 440 ifeq ($(CONFIG_KALLSYMS),y)
 441                 smap=`$(call SYSTEM_MAP,u-boot) | \
 442                         awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
 443                 $(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \
 444                         -c common/system_map.c -o $(obj)common/system_map.o
 445                 $(GEN_UBOOT) $(obj)common/system_map.o
 446 endif
 447
 448 $(OBJS):        depend
 449                 $(MAKE) -C $(CPUDIR) $(if $(REMOTE_BUILD),$@,$(notdir $@))
 450
 451 $(LIBS):        depend $(SUBDIR_TOOLS)
 452                 $(MAKE) -C $(dir $(subst $(obj),,$@))
 453
 454 $(LIBBOARD):    depend $(LIBS)
 455                 $(MAKE) -C $(dir $(subst $(obj),,$@))
 456
 457 $(SUBDIRS):     depend
 458                 $(MAKE) -C $@ all
 459
 460 $(SUBDIR_EXAMPLES): $(obj)u-boot
 461
 462 $(LDSCRIPT):    depend
 463                 $(MAKE) -C $(dir $@) $(notdir $@)
 464
 465 $(obj)u-boot.lds: $(LDSCRIPT)
 466                 $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
 467
 468 nand_spl:       $(TIMESTAMP_FILE) $(VERSION_FILE) depend
 469                 $(MAKE) -C nand_spl/board/$(BOARDDIR) all
 470
 471 $(obj)u-boot-nand.bin:  nand_spl $(obj)u-boot.bin
 472                 cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
 473
 474 onenand_ipl:    $(TIMESTAMP_FILE) $(VERSION_FILE) $(obj)include/autoconf.mk
 475                 $(MAKE) -C onenand_ipl/board/$(BOARDDIR) all
 476
 477 $(obj)u-boot-onenand.bin:       onenand_ipl $(obj)u-boot.bin
 478                 cat $(ONENAND_BIN) $(obj)u-boot.bin > $(obj)u-boot-onenand.bin
 479
 480 mmc_spl:        $(TIMESTAMP_FILE) $(VERSION_FILE) depend
 481                 $(MAKE) -C mmc_spl/board/$(BOARDDIR) all
 482
 483 $(obj)mmc_spl/u-boot-mmc-spl.bin:       mmc_spl
 484
 485 $(obj)spl/u-boot-spl.bin:               depend
 486                 $(MAKE) -C spl all
 487
 488 updater:
 489                 $(MAKE) -C tools/updater all
 490
 491 # Explicitly make _depend in subdirs containing multiple targets to prevent
 492 # parallel sub-makes creating .depend files simultaneously.
 493 depend dep:     $(TIMESTAMP_FILE) $(VERSION_FILE) \
 494                 $(obj)include/autoconf.mk \
 495                 $(obj)include/generated/generic-asm-offsets.h \
 496                 $(obj)include/generated/asm-offsets.h
 497                 for dir in $(SUBDIRS) $(CPUDIR) $(dir $(LDSCRIPT)) ; do \
 498                         $(MAKE) -C $$dir _depend ; done
 499
 500 TAG_SUBDIRS = $(SUBDIRS)
 501 TAG_SUBDIRS += $(dir $(__LIBS))
 502 TAG_SUBDIRS += include
 503
 504 FIND := find
 505 FINDFLAGS := -L
 506
 507 tags ctags:
 508                 ctags -w -o $(obj)ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
 509                                                 -name '*.[chS]' -print`
 510
 511 etags:
 512                 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
 513                                                 -name '*.[chS]' -print`
 514 cscope:
 515                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
 516                                                 cscope.files
 517                 cscope -b -q -k
 518
 519 SYSTEM_MAP = \
 520                 $(NM) $1 | \
 521                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
 522                 LC_ALL=C sort
 523 $(obj)System.map:       $(obj)u-boot
 524                 @$(call SYSTEM_MAP,$<) > $(obj)System.map
 525
 526 #
 527 # Auto-generate the autoconf.mk file (which is included by all makefiles)
 528 #
 529 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
 530 # the dep file is only include in this top level makefile to determine when
 531 # to regenerate the autoconf.mk file.
 532 $(obj)include/autoconf.mk.dep: $(obj)include/config.h include/common.h
 533         @$(XECHO) Generating $@ ; \
 534         set -e ; \
 535         : Generate the dependancies ; \
 536         $(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
 537                 -MQ $(obj)include/autoconf.mk include/common.h > $@
 538
 539 $(obj)include/autoconf.mk: $(obj)include/config.h
 540         @$(XECHO) Generating $@ ; \
 541         set -e ; \
 542         : Extract the config macros ; \
 543         $(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h | \
 544                 sed -n -f tools/scripts/define2mk.sed > $@.tmp && \
 545         mv $@.tmp $@
 546
 547 $(obj)include/generated/generic-asm-offsets.h:  $(obj)include/autoconf.mk.dep \
 548         $(obj)lib/asm-offsets.s
 549         @$(XECHO) Generating $@
 550         tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@
 551
 552 $(obj)lib/asm-offsets.s:        $(obj)include/autoconf.mk.dep \
 553         $(src)lib/asm-offsets.c
 554         @mkdir -p $(obj)lib
 555         $(CC) -DDO_DEPS_ONLY \
 556                 $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
 557                 -o $@ $(src)lib/asm-offsets.c -c -S
 558
 559 $(obj)include/generated/asm-offsets.h:  $(obj)include/autoconf.mk.dep \
 560         $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
 561         @echo Generating $@
 562         tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@
 563
 564 $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s:   $(obj)include/autoconf.mk.dep
 565         @mkdir -p $(obj)$(CPUDIR)/$(SOC)
 566         if [ -f $(src)$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
 567                 $(CC) -DDO_DEPS_ONLY \
 568                 $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
 569                         -o $@ $(src)$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
 570         else \
 571                 touch $@; \
 572         fi
 573
 574 #########################################################################
 575 else    # !config.mk
 576 all $(obj)u-boot.hex $(obj)u-boot.srec $(obj)u-boot.bin \
 577 $(obj)u-boot.img $(obj)u-boot.dis $(obj)u-boot \
 578 $(filter-out tools,$(SUBDIRS)) \
 579 updater depend dep tags ctags etags cscope $(obj)System.map:
 580         @echo "System not configured - see README" >&2
 581         @ exit 1
 582
 583 tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
 584         $(MAKE) -C $@ all
 585 endif   # config.mk
 586
 587 $(VERSION_FILE):
 588                 @mkdir -p $(dir $(VERSION_FILE))
 589                 @( localvers='$(shell $(TOPDIR)/tools/setlocalversion $(TOPDIR))' ; \
 590                    printf '#define PLAIN_VERSION "%s%s"\n' \
 591                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
 592                    printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
 593                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
 594                 ) > $@.tmp
 595                 @( printf '#define CC_VERSION_STRING "%s"\n' \
 596                  '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
 597                 @( printf '#define LD_VERSION_STRING "%s"\n' \
 598                  '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
 599                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
 600
 601 $(TIMESTAMP_FILE):
 602                 @mkdir -p $(dir $(TIMESTAMP_FILE))
 603                 @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
 604                 @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
 605                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
 606
 607 easylogo env gdb:
 608         $(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
 609 gdbtools: gdb
 610
 611 tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
 612         $(MAKE) -C tools HOST_TOOLS_ALL=y
 613
 614 .PHONY : CHANGELOG
 615 CHANGELOG:
 616         git log --no-merges U-Boot-1_1_5.. | \
 617         unexpand -a | sed -e 's/\s\s*$$//' > $@
 618
 619 include/license.h: tools/bin2header COPYING
 620         cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
 621 #########################################################################
 622
 623 unconfig:
 624         @rm -f $(obj)include/config.h $(obj)include/config.mk \
 625                 $(obj)board/*/config.tmp $(obj)board/*/*/config.tmp \
 626                 $(obj)include/autoconf.mk $(obj)include/autoconf.mk.dep
 627
 628 %_config::      unconfig
 629         @$(MKCONFIG) -A $(@:_config=)
 630
 631 sinclude $(obj).boards.depend
 632 $(obj).boards.depend:   boards.cfg
 633         awk '(NF && $$1 !~ /^#/) { print $$1 ": " $$1 "_config; $$(MAKE)" }' $< > $@
 634
 635 #
 636 # Functions to generate common board directory names
 637 #
 638 lcname  = $(shell echo $(1) | sed -e 's/\(.*\)_config/\L\1/')
 639 ucname  = $(shell echo $(1) | sed -e 's/\(.*\)_config/\U\1/')
 640
 641 #########################################################################
 642 ## Coldfire
 643 #########################################################################
 644 M52277EVB_config \
 645 M52277EVB_spansion_config \
 646 M52277EVB_stmicro_config :      unconfig
 647         @mkdir -p $(obj)include
 648         @mkdir -p $(obj)board/freescale/m52277evb
 649         @case "$@" in \
 650         M52277EVB_config)               FLASH=SPANSION;; \
 651         M52277EVB_spansion_config)      FLASH=SPANSION;; \
 652         M52277EVB_stmicro_config)       FLASH=STMICRO;; \
 653         esac; \
 654         if [ "$${FLASH}" = "SPANSION" ] ; then \
 655                 echo "#define CONFIG_SYS_SPANSION_BOOT" >> $(obj)include/config.h ; \
 656                 echo "CONFIG_SYS_TEXT_BASE = 0x00000000" > $(obj)board/freescale/m52277evb/config.tmp ; \
 657         fi; \
 658         if [ "$${FLASH}" = "STMICRO" ] ; then \
 659                 echo "#define CONFIG_CF_SBF"    >> $(obj)include/config.h ; \
 660                 echo "#define CONFIG_SYS_STMICRO_BOOT"  >> $(obj)include/config.h ; \
 661                 echo "CONFIG_SYS_TEXT_BASE = 0x43E00000" > $(obj)board/freescale/m52277evb/config.tmp ; \
 662         fi
 663         @$(MKCONFIG) -n $@ -a M52277EVB m68k mcf5227x m52277evb freescale
 664
 665 M5235EVB_config \
 666 M5235EVB_Flash16_config \
 667 M5235EVB_Flash32_config:        unconfig
 668         @mkdir -p $(obj)include
 669         @mkdir -p $(obj)board/freescale/m5235evb
 670         @case "$@" in \
 671         M5235EVB_config)                FLASH=16;; \
 672         M5235EVB_Flash16_config)        FLASH=16;; \
 673         M5235EVB_Flash32_config)        FLASH=32;; \
 674         esac; \
 675         if [ "$${FLASH}" != "16" ] ; then \
 676                 echo "#define NORFLASH_PS32BIT  1" >> $(obj)include/config.h ; \
 677                 echo "CONFIG_SYS_TEXT_BASE = 0xFFC00000" > $(obj)board/freescale/m5235evb/config.tmp ; \
 678         else \
 679                 echo "CONFIG_SYS_TEXT_BASE = 0xFFE00000" > $(obj)board/freescale/m5235evb/config.tmp ; \
 680         fi
 681         @$(MKCONFIG) -n $@ -a M5235EVB m68k mcf523x m5235evb freescale
 682
 683 EB+MCF-EV123_config :           unconfig
 684         @mkdir -p $(obj)board/BuS/EB+MCF-EV123
 685         @echo "CONFIG_SYS_TEXT_BASE = 0xFFE00000"|tee $(obj)board/BuS/EB+MCF-EV123/textbase.mk
 686         @$(MKCONFIG) -n $@ EB+MCF-EV123 m68k mcf52x2 EB+MCF-EV123 BuS
 687
 688 EB+MCF-EV123_internal_config :  unconfig
 689         @mkdir -p $(obj)board/BuS/EB+MCF-EV123
 690         @echo "CONFIG_SYS_TEXT_BASE = 0xF0000000"|tee $(obj)board/BuS/EB+MCF-EV123/textbase.mk
 691         @$(MKCONFIG) -n $@ EB+MCF-EV123 m68k mcf52x2 EB+MCF-EV123 BuS
 692
 693 M54451EVB_config \
 694 M54451EVB_stmicro_config :      unconfig
 695         @mkdir -p $(obj)include
 696         @mkdir -p $(obj)board/freescale/m54451evb
 697         @case "$@" in \
 698         M54451EVB_config)               FLASH=NOR;; \
 699         M54451EVB_stmicro_config)       FLASH=STMICRO;; \
 700         esac; \
 701         if [ "$${FLASH}" = "NOR" ] ; then \
 702                 echo "CONFIG_SYS_TEXT_BASE = 0x00000000" > $(obj)board/freescale/m54451evb/config.tmp ; \
 703         fi; \
 704         if [ "$${FLASH}" = "STMICRO" ] ; then \
 705                 echo "#define CONFIG_CF_SBF"    >> $(obj)include/config.h ; \
 706                 echo "#define CONFIG_SYS_STMICRO_BOOT"  >> $(obj)include/config.h ; \
 707                 echo "CONFIG_SYS_TEXT_BASE = 0x47E00000" > $(obj)board/freescale/m54451evb/config.tmp ; \
 708         fi; \
 709         echo "#define CONFIG_SYS_INPUT_CLKSRC 24000000" >> $(obj)include/config.h ;
 710         @$(MKCONFIG) -n $@ -a M54451EVB m68k mcf5445x m54451evb freescale
 711
 712 M54455EVB_config \
 713 M54455EVB_atmel_config \
 714 M54455EVB_intel_config \
 715 M54455EVB_a33_config \
 716 M54455EVB_a66_config \
 717 M54455EVB_i33_config \
 718 M54455EVB_i66_config \
 719 M54455EVB_stm33_config :        unconfig
 720         @mkdir -p $(obj)include
 721         @mkdir -p $(obj)board/freescale/m54455evb
 722         @case "$@" in \
 723         M54455EVB_config)               FLASH=ATMEL; FREQ=33333333;; \
 724         M54455EVB_atmel_config)         FLASH=ATMEL; FREQ=33333333;; \
 725         M54455EVB_intel_config)         FLASH=INTEL; FREQ=33333333;; \
 726         M54455EVB_a33_config)           FLASH=ATMEL; FREQ=33333333;; \
 727         M54455EVB_a66_config)           FLASH=ATMEL; FREQ=66666666;; \
 728         M54455EVB_i33_config)           FLASH=INTEL; FREQ=33333333;; \
 729         M54455EVB_i66_config)           FLASH=INTEL; FREQ=66666666;; \
 730         M54455EVB_stm33_config)         FLASH=STMICRO; FREQ=33333333;; \
 731         esac; \
 732         if [ "$${FLASH}" = "INTEL" ] ; then \
 733                 echo "#define CONFIG_SYS_INTEL_BOOT" >> $(obj)include/config.h ; \
 734                 echo "CONFIG_SYS_TEXT_BASE = 0x00000000" > $(obj)board/freescale/m54455evb/config.tmp ; \
 735         fi; \
 736         if [ "$${FLASH}" = "ATMEL" ] ; then \
 737                 echo "#define CONFIG_SYS_ATMEL_BOOT"    >> $(obj)include/config.h ; \
 738                 echo "CONFIG_SYS_TEXT_BASE = 0x04000000" > $(obj)board/freescale/m54455evb/config.tmp ; \
 739         fi; \
 740         if [ "$${FLASH}" = "STMICRO" ] ; then \
 741                 echo "#define CONFIG_CF_SBF"    >> $(obj)include/config.h ; \
 742                 echo "#define CONFIG_SYS_STMICRO_BOOT"  >> $(obj)include/config.h ; \
 743                 echo "CONFIG_SYS_TEXT_BASE = 0x4FE00000" > $(obj)board/freescale/m54455evb/config.tmp ; \
 744         fi; \
 745         echo "#define CONFIG_SYS_INPUT_CLKSRC $${FREQ}" >> $(obj)include/config.h ; \
 746         $(XECHO) "... with $${FREQ}Hz input clock"
 747         @$(MKCONFIG) -n $@ -a M54455EVB m68k mcf5445x m54455evb freescale
 748
 749 #========================================================================
 750 # ARM
 751 #========================================================================
 752
 753 xtract_omap1610xxx = $(subst _cs0boot,,$(subst _cs3boot,,$(subst _cs_autoboot,,$(subst _config,,$1))))
 754
 755 omap1610inn_config \
 756 omap1610inn_cs0boot_config \
 757 omap1610inn_cs3boot_config \
 758 omap1610inn_cs_autoboot_config \
 759 omap1610h2_config \
 760 omap1610h2_cs0boot_config \
 761 omap1610h2_cs3boot_config \
 762 omap1610h2_cs_autoboot_config:  unconfig
 763         @mkdir -p $(obj)include
 764         @if [ "$(findstring _cs0boot_, $@)" ] ; then \
 765                 echo "#define CONFIG_CS0_BOOT" >> .$(obj)include/config.h ; \
 766         elif [ "$(findstring _cs_autoboot_, $@)" ] ; then \
 767                 echo "#define CONFIG_CS_AUTOBOOT" >> $(obj)include/config.h ; \
 768         else \
 769                 echo "#define CONFIG_CS3_BOOT" >> $(obj)include/config.h ; \
 770         fi;
 771         @$(MKCONFIG) -n $@ -a $(call xtract_omap1610xxx,$@) arm arm926ejs omap1610inn ti omap
 772
 773 omap730p2_config \
 774 omap730p2_cs0boot_config \
 775 omap730p2_cs3boot_config :      unconfig
 776         @mkdir -p $(obj)include
 777         @if [ "$(findstring _cs0boot_, $@)" ] ; then \
 778                 echo "#define CONFIG_CS0_BOOT" >> $(obj)include/config.h ; \
 779         else \
 780                 echo "#define CONFIG_CS3_BOOT" >> $(obj)include/config.h ; \
 781         fi;
 782         @$(MKCONFIG) -n $@ -a omap730p2 arm arm926ejs omap730p2 ti omap
 783
 784 spear300_config \
 785 spear310_config \
 786 spear320_config :       unconfig
 787         @$(MKCONFIG) -n $@ -t $@ spear3xx arm arm926ejs $(@:_config=) spear spear
 788
 789 spear600_config :       unconfig
 790         @$(MKCONFIG) -n $@ -t $@ spear6xx arm arm926ejs $(@:_config=) spear spear
 791
 792 SX1_stdout_serial_config \
 793 SX1_config:             unconfig
 794         @mkdir -p $(obj)include
 795         @if [ "$(findstring _stdout_serial_, $@)" ] ; then \
 796                 echo "#undef CONFIG_STDOUT_USBTTY" >> $(obj)include/config.h ; \
 797         else \
 798                 echo "#define CONFIG_STDOUT_USBTTY" >> $(obj)include/config.h ; \
 799         fi;
 800         @$(MKCONFIG) -n $@ SX1 arm arm925t sx1
 801
 802 #########################################################################
 803 ## XScale Systems
 804 #########################################################################
 805
 806 pdnb3_config \
 807 scpu_config:    unconfig
 808         @mkdir -p $(obj)include
 809         @if [ "$(findstring scpu_,$@)" ] ; then \
 810                 echo "#define CONFIG_SCPU"      >>$(obj)include/config.h ; \
 811         fi
 812         @$(MKCONFIG) -n $@ -a pdnb3 arm ixp pdnb3 prodrive
 813
 814 #########################################################################
 815 ## ARM1136 Systems
 816 #########################################################################
 817
 818 apollon_config          : unconfig
 819         @mkdir -p $(obj)include
 820         @echo "#define CONFIG_ONENAND_U_BOOT" > $(obj)include/config.h
 821         @echo "CONFIG_ONENAND_U_BOOT = y" >> $(obj)include/config.mk
 822         @$(MKCONFIG) $@ arm arm1136 apollon - omap24xx
 823
 824 #########################################################################
 825 ## ARM1176 Systems
 826 #########################################################################
 827 smdk6400_noUSB_config   \
 828 smdk6400_config :       unconfig
 829         @mkdir -p $(obj)include $(obj)board/samsung/smdk6400
 830         @mkdir -p $(obj)nand_spl/board/samsung/smdk6400
 831         @echo "#define CONFIG_NAND_U_BOOT" > $(obj)include/config.h
 832         @echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk
 833         @if [ -z "$(findstring smdk6400_noUSB_config,$@)" ]; then                       \
 834                 echo "RAM_TEXT = 0x57e00000" >> $(obj)board/samsung/smdk6400/config.tmp;\
 835         else                                                                            \
 836                 echo "RAM_TEXT = 0xc7e00000" >> $(obj)board/samsung/smdk6400/config.tmp;\
 837         fi
 838         @$(MKCONFIG) smdk6400 arm arm1176 smdk6400 samsung s3c64xx
 839         @echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk
 840
 841 #########################################################################
 842 #########################################################################
 843
 844 clean:
 845         @rm -f $(obj)examples/standalone/82559_eeprom                     \
 846                $(obj)examples/standalone/atmel_df_pow2                    \
 847                $(obj)examples/standalone/eepro100_eeprom                  \
 848                $(obj)examples/standalone/hello_world                      \
 849                $(obj)examples/standalone/interrupt                        \
 850                $(obj)examples/standalone/mem_to_mem_idma2intr             \
 851                $(obj)examples/standalone/sched                            \
 852                $(obj)examples/standalone/smc911{11,x}_eeprom              \
 853                $(obj)examples/standalone/test_burst                       \
 854                $(obj)examples/standalone/timer
 855         @rm -f $(obj)examples/api/demo{,.bin}
 856         @rm -f $(obj)tools/bmp_logo        $(obj)tools/easylogo/easylogo  \
 857                $(obj)tools/env/{fw_printenv,fw_setenv}                    \
 858                $(obj)tools/envcrc                                         \
 859                $(obj)tools/gdb/{astest,gdbcont,gdbsend}                   \
 860                $(obj)tools/gen_eth_addr    $(obj)tools/img2srec           \
 861                $(obj)tools/mkimage         $(obj)tools/mpc86x_clk         \
 862                $(obj)tools/ncb             $(obj)tools/ubsha1
 863         @rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}        \
 864                $(obj)board/matrix_vision/*/bootscript.img                 \
 865                $(obj)board/voiceblue/eeprom                               \
 866                $(obj)u-boot.lds                                           \
 867                $(obj)arch/blackfin/cpu/bootrom-asm-offsets.[chs]          \
 868                $(obj)arch/blackfin/cpu/init.{lds,elf}
 869         @rm -f $(obj)include/bmp_logo.h
 870         @rm -f $(obj)lib/asm-offsets.s
 871         @rm -f $(obj)include/generated/asm-offsets.h
 872         @rm -f $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
 873         @rm -f $(obj)nand_spl/{u-boot.lds,u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map,System.map}
 874         @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl.map}
 875         @rm -f $(obj)mmc_spl/{u-boot.lds,u-boot-spl,u-boot-spl.map,u-boot-spl.bin,u-boot-mmc-spl.bin}
 876         @rm -f $(ONENAND_BIN)
 877         @rm -f $(obj)onenand_ipl/u-boot.lds
 878         @rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.lds,u-boot-spl.map}
 879         @rm -f $(obj)MLO
 880         @rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
 881         @find $(OBJTREE) -type f \
 882                 \( -name 'core' -o -name '*.bak' -o -name '*~' \
 883                 -o -name '*.o'  -o -name '*.a' -o -name '*.exe' \) -print \
 884                 | xargs rm -f
 885
 886 clobber:        clean
 887         @find $(OBJTREE) -type f \( -name '*.depend*' \
 888                 -o -name '*.srec' -o -name '*.bin' -o -name u-boot.img \) \
 889                 -print0 \
 890                 | xargs -0 rm -f
 891         @rm -f $(OBJS) $(obj)*.bak $(obj)ctags $(obj)etags $(obj)TAGS \
 892                 $(obj)cscope.* $(obj)*.*~
 893         @rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL-y)
 894         @rm -f $(obj)u-boot.kwb
 895         @rm -f $(obj)u-boot.imx
 896         @rm -f $(obj)u-boot.ubl
 897         @rm -f $(obj)u-boot.dtb
 898         @rm -f $(obj)tools/{env/crc32.c,inca-swap-bytes}
 899         @rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c
 900         @rm -fr $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm
 901         @rm -fr $(obj)include/generated
 902         @[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f
 903         @[ ! -d $(obj)onenand_ipl ] || find $(obj)onenand_ipl -name "*" -type l -print | xargs rm -f
 904         @[ ! -d $(obj)mmc_spl ] || find $(obj)mmc_spl -name "*" -type l -print | xargs rm -f
 905         @rm -f $(obj)dts/*.tmp
 906
 907 mrproper \
 908 distclean:      clobber unconfig
 909 ifneq ($(OBJTREE),$(SRCTREE))
 910         rm -rf $(obj)*
 911 endif
 912
 913 backup:
 914         F=`basename $(TOPDIR)` ; cd .. ; \
 915         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
 916
 917 #########################################################################