以cpci5200为例，顺序分析U－BOOT根目录下的顶层Makefile大致的流程及结构如下：
#
# (C) Copyright 2000-2006
# 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
#
#版本信息1.1.6版，定义版本文件变量
VERSION = 1
PATCHLEVEL = 1
SUBLEVEL = 5
EXTRAVERSION =
U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
VERSION_FILE = $(obj)include/version_autogenerated.h
#检查宿主机环境，这部分是常量的定义，注意这里的$(obj)，这个常量在这里为空，它放#到这里，是因为在target unconfig, clean, clobber, distclean中需要用这个变量，#具体是个怎么用法，我没有去仔细分析。
#HOSTARCH这个变量的赋值，是通过执行一套shell程序来完成的，其中$(shell xxx) #的语法就是在shell中执行xxx的命令。这里的|就是linux中的管道处理符，/就是换行的#连接符，表示下一行与本行是同行程序处理。
#uname -m，就是得到machine hardware name，中文翻译成机器硬件名？！
#sed -e的意思，就是表示后面跟的是一串命令脚本，s/abc/def/的命令表达式，就是表#示要从标准输入中，查找到内容为abc的，然后替换成def。这样执行这一套程序下来，就#知道了机器的硬件体系了。
#uname -s，得到kernel name，内核的名字。
#tr '[:upper:]' '[:lower:]'，表示从标准输入里，把大字都换成小写，然后输出到标准#输出。然后后面再跟了一串用来特别处理cygwin环境下编译的环境变量的配置的。
HOSTARCH := $(shell uname -m | /
sed -e s/i.86/i386/ /
-e s/sun4u/sparc64/ /
-e s/arm.*/arm/ /
-e s/sa110/arm/ /
-e s/powerpc/ppc/ /
-e s/macppc/ppc/)
HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | /
sed -e 's//(cygwin/).*/cygwin/')
export HOSTARCH HOSTOS
# Deal with colliding definitions from tcsh etc.
VENDOR=
#########################################################################
#定义源码及生成的目标文件存放的目录,目标文件存放目录BUILD＿DIR可以通过
#make O=dir 指定。如果没有指定，则设定为源码顶层目录。一般编译的时候不
#指定输出目录，则BUILD＿DIR为空。
#
# U-boot build supports producing a object files to the separate external
# directory. Two use cases are supported:
#
# 1) Add O= to the make command line
# 'make O=/tmp/build all'
#
# 2) Set environement variable BUILD_DIR to point to the desired location
# 'export BUILD_DIR=/tmp/build'
# 'make'
#
# The second approach can also be used with a MAKEALL script
# 'export BUILD_DIR=/tmp/build'
# './MAKEALL'
#
# Command line 'O=' setting overrides BUILD_DIR environent variable.
#
# When none of the above methods is used the local build is performed and
# the object files are placed in the source directory.
#
#使用一个条件判断，判断0这个变量有没有被定义，如果定义了，则进一步判断，这个0的定#义是从哪里来的，$(origin 0)就是来得到0的定义的来源，如果是命令行，则采用。同理如#果BUILD_DIR变量不为空，则给另外一个变量saved-output赋值。
ifdef O
ifeq ("$(origin O)", "command line")
BUILD_DIR := $(O)
endif
endif
ifneq ($(BUILD_DIR),)
saved-output := $(BUILD_DIR)
# Attempt to create a output directory.
#执行shell的时候，用了一个||符号，这个符号的功能与C语言里的||符号功能很相似，如果#左边的值为真，则不执行后面的操作。所以这里就是先用-d选项判断${BUILD_DIR}这个目录#存在与否，如果存在，就不执行后面的建目录的命令，如果不存在，则建目录。
$(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR})
# Verify if it was successful.
#接下来这一段就是执行cd命令，进入到新建的目录里，然后执行pwd命令来得到当前目录的
#真实位置。为什么需要这样做呢，因为前面的创建目录工作可能不成功，所以导致后面的cd
#命令也没有进去，所以需要后面的pwd命令来确认一下。接下来的if用了一个三段式的形式，#if(a,b,c)这样的形式，执行步骤为，先判断a的真假，如果为真，则执行b，如果为假，则
#执行c。所以这里的意思就是判断目录建成没有建成，如果建成，则什么也不干，没建成，
#就使用error，输出错误信息且退出。
BUILD_DIR := $(shell cd $(BUILD_DIR) && /bin/pwd)
$(if $(BUILD_DIR),,$(error output directory "$(saved-output)" does not exist))
endif # ifneq ($(BUILD_DIR),)
#下面是普通的变量赋值，其它目录变量定义如下，OBJTREE和LNDIR为存放生成文件的目#录，TOPDIR与SRCTREE为源码所在目录
OBJTREE := $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
SRCTREE := $(CURDIR)
TOPDIR := $(SRCTREE)
LNDIR := $(OBJTREE)
export TOPDIR SRCTREE OBJTREE
#定义变量MKCONFIG：这个变量指向一个脚本，即顶层目录的mkconfig
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 := $(SRCTREE)/
else
obj :=
src :=
endif
export obj src
#########################################################################
#判断$(OBJTREE)/include/config.mk与$(wildcard $(OBJTREE)/include/config.mk)得到
#的值是否一样。$(wildcard PATTERN)的使用就是查找到与PATTERN相符合的，并且是存在的，#以空格分开的文件列表。说白了，这句话就是判断$(OBJTREE)/include/config.mk文件是否#存在。如果存在，则执行后面用红色标记的内容，如果不存在，则执行接下去的内容，直到#红色标记部分。
#如果include/config.mk文件已存在，就从里面获取目标板构架信息
#否则就要执行者make xxx_config来生成该文件
#以下这部分直到红色标记处是在$(OBJTREE)/include/config.mk文件已经存在的情况下才
#执行的。
ifeq ($(OBJTREE)/include/config.mk,$(wildcard $(OBJTREE)/include/config.mk))
# load ARCH, BOARD, and CPU configuration
#开头一句中的include，它是把后面跟的文件内容给加到它出现的地方，这里就是把#$(OBJTREE)/include/config.mk文件的内容加入到了这里，所以就得到了ARCH，BOARD与CPU
#的值，如果VENDOR与SOC也定义了，也会得到它们的值。
include $(OBJTREE)/include/config.mk
export ARCH CPU BOARD VENDOR SOC
#接着的一大段，就是在判断没有定义CROSS_COMPILE变量的情况下，根据各种情况对这个变量的值进行判断。这个值就是交叉编译工具的开头部分的名称。建议在编译的时候，还是把这个变量的值给置上，置上当前系统里交叉编译工具相应的值，因为很难指望这些个判断就能把你现在系统里的值给判断对了。置变量的方法有-很多，其中一个，就是在make命令后跟上变量的赋值，例如：make CROSS_COMPILE=arm-linux-gnueabi-，或是把CROSS_COMPILE设成一个系统变量，然后直接make CROSS_COMPILE=${CROSS_COMPILE}-这样来设置。
ifndef CROSS_COMPILE
ifeq ($(HOSTARCH),ppc)
CROSS_COMPILE =
else
ifeq ($(ARCH),ppc)
CROSS_COMPILE = powerpc-linux-
endif
ifeq ($(ARCH),arm)
CROSS_COMPILE = arm-linux-
endif
ifeq ($(ARCH),i386)
ifeq ($(HOSTARCH),i386)
CROSS_COMPILE =
else
CROSS_COMPILE = i386-linux-
endif
endif
ifeq ($(ARCH),mips)
CROSS_COMPILE = mips_4KC-
endif
ifeq ($(ARCH),nios)
CROSS_COMPILE = nios-elf-
endif
ifeq ($(ARCH),nios2)
CROSS_COMPILE = nios2-elf-
endif
ifeq ($(ARCH),m68k)
CROSS_COMPILE = m68k-elf-
endif
ifeq ($(ARCH),microblaze)
CROSS_COMPILE = mb-
endif
ifeq ($(ARCH),blackfin)
CROSS_COMPILE = bfin-elf-
endif
endif
endif
export CROSS_COMPILE
# load other configuration
#这里把$(TOPDIR)/config.mk这个文件的内容包含进来了，即包含顶层目录下的config.mk，
#这个文件里面主要定义了交叉编译器及选项和编译规则（sinclude，它也是把后面所跟的文件给包含进来。它与include的区别就是，include后面跟的文件，一定是存在的，如果不存在，执行就会出错误；那么sinclude后面所跟的文件，可以不存在，如果文件存在则包含进来，如果不存在，则什么也不做。）
include $(TOPDIR)/config.mk
#########################################################################
# U-Boot objects....order is important (i.e. start must be first)
#U-boot需要的目标文件，顺序很重要，start.o必须放第一位，
#针对不同架构，安排目标文件的布局，对于不同的CPU追加相应的目标文件。这段代码，其#实也是定义变量，根据不同的条件，给变量定义不同的值。这些变量都是在后面编译的时
#候，写到运行命令参数里面的，这些变量的意义，还有各种参数的意义，可以查看相应的
#工具的参数手册来得到，跟移植没有什么太大的关系
#需要注意一下各个变量值所添加的顺序，第一个添加的，编译的时候，变量进行替换，就
#会被放在前面，然后就会被首先编译，连接，以此类推。可以看到，最先执行的就是start.o
#这个文件里的内容，这个文件是由start.S来生成的
OBJS = cpu/$(CPU)/start.o
ifeq ($(CPU),i386)
OBJS += cpu/$(CPU)/start16.o
OBJS += cpu/$(CPU)/reset.o
endif
ifeq ($(CPU),ppc4xx)
OBJS += cpu/$(CPU)/resetvec.o
endif
ifeq ($(CPU),mpc83xx)
OBJS += cpu/$(CPU)/resetvec.o
endif
ifeq ($(CPU),mpc85xx)
OBJS += cpu/$(CPU)/resetvec.o
endif
ifeq ($(CPU),bf533)
OBJS += cpu/$(CPU)/start1.o cpu/$(CPU)/interrupt.o cpu/$(CPU)/cache.o
OBJS += cpu/$(CPU)/cplbhdlr.o cpu/$(CPU)/cplbmgr.o cpu/$(CPU)/flush.o
endif
OBJS := $(addprefix $(obj),$(OBJS))
#需要的库文件
LIBS = lib_generic/libgeneric.a
LIBS += board/$(BOARDDIR)/lib$(BOARD).a
LIBS += cpu/$(CPU)/lib$(CPU).a
ifdef SOC
LIBS += cpu/$(CPU)/$(SOC)/lib$(SOC).a
endif
LIBS += lib_$(ARCH)/lib$(ARCH).a
LIBS += fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a /
fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a
LIBS += net/libnet.a
LIBS += disk/libdisk.a
LIBS += rtc/librtc.a
LIBS += dtt/libdtt.a
LIBS += drivers/libdrivers.a
LIBS += drivers/nand/libnand.a
LIBS += drivers/nand_legacy/libnand_legacy.a
LIBS += drivers/sk98lin/libsk98lin.a
LIBS += post/libpost.a post/cpu/libcpu.a
LIBS += common/libcommon.a
LIBS += $(BOARDLIBS)
LIBS := $(addprefix $(obj),$(LIBS))
.PHONY : $(LIBS)
# Add GCC lib
PLATFORM_LIBS += -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
# The "tools" are needed early, so put this first
# Don't include stuff already done in $(LIBS)
SUBDIRS = tools /
examples /
post /
post/cpu
.PHONY : $(SUBDIRS)
ifeq ($(CONFIG_NAND_U_BOOT),y)
NAND_SPL = nand_spl
U_BOOT_NAND = $(obj)u-boot-nand.bin
endif
__OBJS := $(subst $(obj),,$(OBJS))
__LIBS := $(subst $(obj),,$(LIBS))
#########################################################################
#########################################################################
#这里就是定义了各种目标的target。我们最终想要的目标就是$(obj)u-boot，然后看后面的，#它都信赖了好多其它的目标，然后这些个目标，也是在此处定义的，然后有相应的$(MAKE)
#来执行相应的操作，所以这样就实现了一个Makefile文件，
#套很多个其它的Makefile文件来编译整个工程的情况。
ALL = $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map $(U_BOOT_NAND)
all: $(ALL)
$(obj)u-boot.hex: $(obj)u-boot
$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
$(obj)u-boot.srec: $(obj)u-boot
$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
$(obj)u-boot.bin: $(obj)u-boot
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
$(obj)u-boot.img: $(obj)u-boot.bin
./tools/mkimage -A $(ARCH) -T firmware -C none /
-a $(TEXT_BASE) -e 0 /
-n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | /
sed -e 's/"[ ]*$$/ for $(BOARD) board"/') /
-d $< $@
$(obj)u-boot.dis: $(obj)u-boot
$(OBJDUMP) -d $< > $@
$(obj)u-boot: depend version $(SUBDIRS) $(OBJS) $(LIBS) $(LDSCRIPT)
UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) |sed -n -e 's/.*/(__u_boot_cmd_.*/)/-u/1/p'|sort|uniq`;/
cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) /
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) /
-Map u-boot.map -o u-boot
$(OBJS):
$(MAKE) -C cpu/$(CPU) $(if $(REMOTE_BUILD),$@,$(notdir $@))
$(LIBS):
$(MAKE) -C $(dir $(subst $(obj),,$@))
$(SUBDIRS):
$(MAKE) -C $@ all
$(NAND_SPL): version
$(MAKE) -C nand_spl all
$(U_BOOT_NAND): $(NAND_SPL) $(obj)u-boot.bin
cat nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
version:
@echo -n "#define U_BOOT_VERSION /"U-Boot " > $(VERSION_FILE); /
echo -n "$(U_BOOT_VERSION)" >> $(VERSION_FILE); /
echo -n $(shell $(CONFIG_SHELL) $(TOPDIR)/tools/setlocalversion /
$(TOPDIR)) >> $(VERSION_FILE); /
echo "/"" >> $(VERSION_FILE)
gdbtools:
$(MAKE) -C tools/gdb all || exit 1
updater:
$(MAKE) -C tools/updater all || exit 1
env:
$(MAKE) -C tools/env all || exit 1
depend dep:
for dir in $(SUBDIRS) ; do $(MAKE) -C $$dir _depend ; done
tags ctags:
ctags -w -o $(OBJTREE)/ctags `find $(SUBDIRS) include /
lib_generic board/$(BOARDDIR) cpu/$(CPU) lib_$(ARCH) /
fs/cramfs fs/fat fs/fdos fs/jffs2 /
net disk rtc dtt drivers drivers/sk98lin common /
/( -name CVS -prune /) -o /( -name '*.[ch]' -print /)`
etags:
etags -a -o $(OBJTREE)/etags `find $(SUBDIRS) include /
lib_generic board/$(BOARDDIR) cpu/$(CPU) lib_$(ARCH) /
fs/cramfs fs/fat fs/fdos fs/jffs2 /
net disk rtc dtt drivers drivers/sk98lin common /
/( -name CVS -prune /) -o /( -name '*.[ch]' -print /)`
$(obj)System.map: $(obj)u-boot
@$(NM) $< | /
grep -v '/(compiled/)/|/(/.o$$/)/|/( [aUw] /)/|/(/./.ng$$/)/|/(LASH[RL]DI/)' | /
sort > $(obj)System.map
#########################################################################
else
all $(obj)u-boot.hex $(obj)u-boot.srec $(obj)u-boot.bin /
$(obj)u-boot.img $(obj)u-boot.dis $(obj)u-boot /
$(SUBDIRS) version gdbtools updater env depend /
dep tags ctags etags $(obj)System.map:
@echo "System not configured - see README" >&2
@ exit 1
endif
#这里就明说了，如果$(OBJTREE)/include/config.mk文件不存在，则编译不能进行下去了。
#########################################################################
#删掉了包括$(obj)include/config.mk文件在内的，几个在编译的时候生成的配置文件，这
#个$(obj)include/config.mk与$(OBJTREE)/include/config.mk是同一个文件。这样做是为
#了保证重新生成文件的纯粹性。
unconfig:
@rm -f $(obj)include/config.h $(obj)include/config.mk /
$(obj)board/*/config.tmp $(obj)board/*/*/config.tmp
#========================================================================
# PowerPC
#========================================================================
#########################################################################
## MPC5xx Systems
#########################################################################
canmb_config: unconfig
@$(MKCONFIG) -a canmb ppc mpc5xxx canmb
cmi_mpc5xx_config: unconfig
@$(MKCONFIG) $(@:_config=) ppc mpc5xx cmi
PATI_config: unconfig
@$(MKCONFIG) $(@:_config=) ppc mpc5xx pati mpl
#########################################################################
## MPC5xxx Systems
#########################################################################
aev_config: unconfig
@$(MKCONFIG) -a aev ppc mpc5xxx tqm5200
BC3450_config: unconfig
@$(MKCONFIG) -a BC3450 ppc mpc5xxx bc3450
cpci5200_config: unconfig
@$(MKCONFIG) -a cpci5200 ppc mpc5xxx cpci5200 esd
hmi1001_config: unconfig
@$(MKCONFIG) hmi1001 ppc mpc5xxx hmi1001
Lite5200_config /
Lite5200_LOWBOOT_config /
Lite5200_LOWBOOT08_config /
icecube_5200_config /
icecube_5200_LOWBOOT_config /
icecube_5200_LOWBOOT08_config /
icecube_5200_DDR_config /
icecube_5200_DDR_LOWBOOT_config /
icecube_5200_DDR_LOWBOOT08_config /
icecube_5100_config: unconfig
@mkdir -p $(obj)include
@mkdir -p $(obj)board/icecube
@ >$(obj)include/config.h
@[ -z "$(findstring LOWBOOT_,$@)" ] || /
{ if [ "$(findstring DDR,$@)" ] ; /
then echo "TEXT_BASE = 0xFF800000" >$(obj)board/icecube/config.tmp ; /
else echo "TEXT_BASE = 0xFF000000" >$(obj)board/icecube/config.tmp ; /
fi ; /
echo "... with LOWBOOT configuration" ; /
}
@[ -z "$(findstring LOWBOOT08,$@)" ] || /
{ echo "TEXT_BASE = 0xFF800000" >$(obj)board/icecube/config.tmp ; /
echo "... with 8 MB flash only" ; /
echo "... with LOWBOOT configuration" ; /
}
@[ -z "$(findstring DDR,$@)" ] || /
{ echo "#define CONFIG_MPC5200_DDR" >>$(obj)include/config.h ; /
echo "... DDR memory revision" ; /
}
@[ -z "$(findstring 5200,$@)" ] || /
{ echo "#define CONFIG_MPC5200" >>$(obj)include/config.h ; /
echo "... with MPC5200 processor" ; /
}
@[ -z "$(findstring 5100,$@)" ] || /
{ echo "#define CONFIG_MGT5100" >>$(obj)include/config.h ; /
echo "... with MGT5100 processor" ; /
}
@$(MKCONFIG) -a IceCube ppc mpc5xxx icecube
v38b_config: unconfig
@./mkconfig -a V38B ppc mpc5xxx v38b
inka4x0_config: unconfig
@$(MKCONFIG) inka4x0 ppc mpc5xxx inka4x0
lite5200b_config /
lite5200b_LOWBOOT_config: unconfig
@mkdir -p $(obj)include
@mkdir -p $(obj)board/icecube
@ >$(obj)include/config.h
@ echo "#define CONFIG_MPC5200_DDR" >>$(obj)include/config.h
@ echo "... DDR memory revision"
@ echo "#define CONFIG_MPC5200" >>$(obj)include/config.h
@ echo "#define CONFIG_LITE5200B" >>$(obj)include/config.h
@[ -z "$(findstring LOWBOOT_,$@)" ] || /
{ echo "TEXT_BASE = 0xFF000000" >$(obj)board/icecube/config.tmp ; /
echo "... with LOWBOOT configuration" ; /
}
@ echo "... with MPC5200B processor"
@$(MKCONFIG) -a IceCube ppc mpc5xxx icecube
mcc200_config /
mcc200_SDRAM_config /
mcc200_highboot_config /
mcc200_COM12_config /
mcc200_COM12_SDRAM_config /
mcc200_COM12_highboot_config /
mcc200_COM12_highboot_SDRAM_config /
mcc200_highboot_SDRAM_config /
prs200_config /
prs200_DDR_config /
prs200_highboot_config /
prs200_highboot_DDR_config: unconfig
@mkdir -p $(obj)include
@mkdir -p $(obj)board/mcc200
@ >$(obj)include/config.h
@[ -n "$(findstring highboot,$@)" ] || /
{ echo "... with lowboot configuration" ; /
}
@[ -z "$(findstring highboot,$@)" ] || /
{ echo "TEXT_BASE = 0xFFF00000" >$(obj)board/mcc200/config.tmp ; /
echo "... with highboot configuration" ; /
}
@[ -n "$(findstring _SDRAM,$@)" ] || /
{ if [ -n "$(findstring mcc200,$@)" ]; /
then /
echo "... with DDR" ; /
else /
if [ -n "$(findstring _DDR,$@)" ];/
then /
echo "... with DDR" ; /
else /
echo "#define CONFIG_MCC200_SDRAM" >>$(obj)include/config.h ;/
echo "... with SDRAM" ; /
fi; /
fi; /
}
@[ -z "$(findstring _SDRAM,$@)" ] || /
{ echo "#define CONFIG_MCC200_SDRAM" >>$(obj)include/config.h ; /
echo "... with SDRAM" ; /
}
@[ -z "$(findstring COM12,$@)" ] || /
{ echo "#define CONFIG_CONSOLE_COM12" >>$(obj)include/config.h ; /
echo "... with console on COM12" ; /
}
@[ -z "$(findstring prs200,$@)" ] || /
{ echo "#define CONFIG_PRS200" >>$(obj)include/config.h ;/
}
@$(MKCONFIG) -n $@ -a mcc200 ppc mpc5xxx mcc200
o2dnt_config:
@$(MKCONFIG) o2dnt ppc mpc5xxx o2dnt
pf5200_config: unconfig
@$(MKCONFIG) pf5200 ppc mpc5xxx pf5200 esd
PM520_config /
PM520_DDR_config /
PM520_ROMBOOT_config /
PM520_ROMBOOT_DDR_config: unconfig
@mkdir -p $(obj)include
@ >$(obj)include/config.h
@[ -z "$(findstring DDR,$@)" ] || /
{ echo "#define CONFIG_MPC5200_DDR" >>$(obj)include/config.h ; /
echo "... DDR memory revision" ; /
}
@[ -z "$(findstring ROMBOOT,$@)" ] || /
{ echo "#define CONFIG_BOOT_ROM" >>$(obj)include/config.h ; /
echo "... booting from 8-bit flash" ; /
}
@$(MKCONFIG) -a PM520 ppc mpc5xxx pm520
smmaco4_config: unconfig
@$(MKCONFIG) -a smmaco4 ppc mpc5xxx tqm5200
spieval_config: unconfig
@$(MKCONFIG) -a spieval ppc mpc5xxx tqm5200
TB5200_B_config /
TB5200_config: unconfig
@mkdir -p $(obj)include
@[ -z "$(findstring _B,$@)" ] || /
{ echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; /
echo "... with MPC5200B processor" ; /
}
@$(MKCONFIG) -n $@ -a TB5200 ppc mpc5xxx tqm5200
MINI5200_config /
EVAL5200_config /
TOP5200_config: unconfig
@mkdir -p $(obj)include
@ echo "#define CONFIG_$(@:_config=) 1" >$(obj)include/config.h
@$(MKCONFIG) -n $@ -a TOP5200 ppc mpc5xxx top5200 emk
Total5100_config /
Total5200_config /
Total5200_lowboot_config /
Total5200_Rev2_config /
Total5200_Rev2_lowboot_config: unconfig
@mkdir -p $(obj)include
@mkdir -p $(obj)board/total5200
@ >$(obj)include/config.h
@[ -z "$(findstring 5100,$@)" ] || /
{ echo "#define CONFIG_MGT5100" >>$(obj)include/config.h ; /
echo "... with MGT5100 processor" ; /
}
@[ -z "$(findstring 5200,$@)" ] || /
{ echo "#define CONFIG_MPC5200" >>$(obj)include/config.h ; /
echo "... with MPC5200 processor" ; /
}
@[ -n "$(findstring Rev,$@)" ] || /
{ echo "#define CONFIG_TOTAL5200_REV 1" >>$(obj)include/config.h ; /
echo "... revision 1 board" ; /
}
@[ -z "$(findstring Rev2_,$@)" ] || /
{ echo "#define CONFIG_TOTAL5200_REV 2" >>$(obj)include/config.h ; /
echo "... revision 2 board" ; /
}
@[ -z "$(findstring lowboot_,$@)" ] || /
{ echo "TEXT_BASE = 0xFE000000" >$(obj)board/total5200/config.tmp ; /
echo "... with lowboot configuration" ; /
}
@$(MKCONFIG) -a Total5200 ppc mpc5xxx total5200
cam5200_config /
fo300_config /
MiniFAP_config /
TQM5200S_config /
TQM5200S_HIGHBOOT_config /
TQM5200_B_config /
TQM5200_B_HIGHBOOT_config /
TQM5200_config /
TQM5200_STK100_config: unconfig
@mkdir -p $(obj)include
@mkdir -p $(obj)board/tqm5200
@ >$(obj)include/config.h
@[ -z "$(findstring cam5200,$@)" ] || /
{ echo "#define CONFIG_CAM5200" >>$(obj)include/config.h ; /
echo "#define CONFIG_TQM5200S" >>$(obj)include/config.h ; /
echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; /
echo "... TQM5200S on Cam5200" ; /
}
@[ -z "$(findstring fo300,$@)" ] || /
{ echo "#define CONFIG_FO300" >>$(obj)include/config.h ; /
echo "... TQM5200 on FO300" ; /
}
@[ -z "$(findstring MiniFAP,$@)" ] || /
{ echo "#define CONFIG_MINIFAP" >>$(obj)include/config.h ; /
echo "... TQM5200_AC on MiniFAP" ; /
}
@[ -z "$(findstring STK100,$@)" ] || /
{ echo "#define CONFIG_STK52XX_REV100" >>$(obj)include/config.h ; /
echo "... on a STK52XX.100 base board" ; /
}
@[ -z "$(findstring TQM5200_B,$@)" ] || /
{ echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; /
}
@[ -z "$(findstring TQM5200S,$@)" ] || /
{ echo "#define CONFIG_TQM5200S" >>$(obj)include/config.h ; /
echo "#define CONFIG_TQM5200_B" >>$(obj)include/config.h ; /
}
@[ -z "$(findstring HIGHBOOT,$@)" ] || /
{ echo "TEXT_BASE = 0xFFF00000" >$(obj)board/tqm5200/config.tmp ; /
}
@$(MKCONFIG) -n $@ -a TQM5200 ppc mpc5xxx tqm5200
#########################################################################
#########################################################################
#########################################################################
clean:
find $(OBJTREE) -type f /
/( -name 'core' -o -name '*.bak' -o -name '*~' /
-o -name '*.o' -o -name '*.a' /) -print /
| xargs rm -f
rm -f $(obj)examples/hello_world $(obj)examples/timer /
$(obj)examples/eepro100_eeprom $(obj)examples/sched /
$(obj)examples/mem_to_mem_idma2intr $(obj)examples/82559_eeprom /
$(obj)examples/smc91111_eeprom $(obj)examples/interrupt /
$(obj)examples/test_burst
rm -f $(obj)tools/img2srec $(obj)tools/mkimage $(obj)tools/envcrc /
$(obj)tools/gen_eth_addr
rm -f $(obj)tools/mpc86x_clk $(obj)tools/ncb
rm -f $(obj)tools/easylogo/easylogo $(obj)tools/bmp_logo
rm -f $(obj)tools/gdb/astest $(obj)tools/gdb/gdbcont $(obj)tools/gdb/gdbsend
rm -f $(obj)tools/env/fw_printenv $(obj)tools/env/fw_setenv
rm -f $(obj)board/cray/L1/bootscript.c $(obj)board/cray/L1/bootscript.image
rm -f $(obj)board/netstar/eeprom $(obj)board/netstar/crcek $(obj)board/netstar/crcit
rm -f $(obj)board/netstar/*.srec $(obj)board/netstar/*.bin
rm -f $(obj)board/trab/trab_fkt $(obj)board/voiceblue/eeprom
rm -f $(obj)board/integratorap/u-boot.lds $(obj)board/integratorcp/u-boot.lds
rm -f $(obj)include/bmp_logo.h
find nand_spl -lname "*" -print | xargs rm -f
rm -f nand_spl/u-boot-spl nand_spl/u-boot-spl.map
clobber: clean
find $(OBJTREE) -type f /( -name .depend /
-o -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)include/version_autogenerated.h
rm -fr $(obj)*.*~
rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL)
rm -f $(obj)tools/crc32.c $(obj)tools/environment.c $(obj)tools/env/crc32.c
rm -f $(obj)tools/inca-swap-bytes $(obj)cpu/mpc824x/bedbug_603e.c
rm -f $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm
ifeq ($(OBJTREE),$(SRCTREE))
mrproper /
distclean: clobber unconfig
else
mrproper /
distclean: clobber unconfig
rm -rf $(OBJTREE)/*
endif
backup:
F=`basename $(TOPDIR)` ; cd .. ; /
gtar --force-local -zcvf `date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
#########################################################################
