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