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android_kernel_xiaomi_sm8350/arch/powerpc/boot/Makefile
Grant Likely 2543133381 [POWERPC] bootwrapper: Build multiple cuImages 
Currently, the kernel uses CONFIG_DEVICE_TREE to wrap a kernel image
with a fdt blob which means for any given configuration only one dts
file can be selected and so support for only one board can be built

This moves the selection of the default .dts file out of the kernel
config and into the bootwrapper makefile.  The makefile chooses which
images to build based on the kernel config and the dts source file
name is taken directly from the image name.  For example "cuImage.ebony"
will use "ebony.dts" as the device tree source file.

In addition, this patch allows a specific image to be requested from the
command line by adding "cuImage.%" and "treeImage.%" targets to the list
of valid built targets in arch/powerpc/Makefile.  This allows the default
dts selection to be overridden.

Another advantage to this change is it allows a single defconfig to be
supplied for all boards using the same chip family and only differing in
the device tree.

Important note: This patch adds two new zImage targets; zImage.dtb.% and
zImage.dtb.initrd.% for zImages with embedded dtb files.  Currently
there are 5 platforms which require this: ps3, ep405, mpc885ads, ep88xc,
adder875-redboot and ep8248e.  This patch *changes the zImage filenames*
for those platforms.  ie. 'zImage.ps3' is now 'zImage.dtb.ps3'.

This new zImage.dtb targets were added so that the .dts file could be
part of the dependancies list for building them.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-07 11:40:19 +11:00

380 lines
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Makefile
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# Makefile for making ELF bootable images for booting on CHRP
# using Open Firmware.
#
# Geert Uytterhoeven September 1997
#
# Based on coffboot by Paul Mackerras
# Simplified for ppc64 by Todd Inglett
#
# NOTE: this code is built for 32 bit in ELF32 format even though
# it packages a 64 bit kernel. We do this to simplify the
# bootloader and increase compatibility with OpenFirmware.
#
# To this end we need to define BOOTCC, etc, as the tools
# needed to build the 32 bit image. That's normally the same
# compiler for the rest of the kernel, with the -m32 flag added.
# To make it easier to setup a cross compiler,
# CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
# in the toplevel makefile.
all: $(obj)/zImage
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -Os -msoft-float -pipe \
-fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
-isystem $(shell $(CROSS32CC) -print-file-name=include)
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
ifdef CONFIG_DEBUG_INFO
BOOTCFLAGS += -g
endif
ifeq ($(call cc-option-yn, -fstack-protector),y)
BOOTCFLAGS += -fno-stack-protector
endif
BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
$(obj)/4xx.o: BOOTCFLAGS += -mcpu=440
$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
zlib := inffast.c inflate.c inftrees.c
zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
zliblinuxheader := zlib.h zconf.h zutil.h
$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
$(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
src-wlib := string.S crt0.S stdio.c main.c \
$(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
ns16550.c serial.c simple_alloc.c div64.S util.S \
gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
fsl-soc.c mpc8xx.c pq2.c
src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
fixed-head.S ep88xc.c ep405.c \
cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
cuboot-warp.c cuboot-85xx-cpm2.c
src-boot := $(src-wlib) $(src-plat) empty.c
src-boot := $(addprefix $(obj)/, $(src-boot))
obj-boot := $(addsuffix .o, $(basename $(src-boot)))
obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
quiet_cmd_copy_zlib = COPY $@
cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
quiet_cmd_copy_zlibheader = COPY $@
cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
# stddef.h for NULL
quiet_cmd_copy_zliblinuxheader = COPY $@
cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
$(call cmd,copy_zlib)
$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
$(call cmd,copy_zlibheader)
$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
$(call cmd,copy_zliblinuxheader)
$(obj)/empty.c:
@touch $@
$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
@cp $< $@
clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds
quiet_cmd_bootcc = BOOTCC $@
cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
quiet_cmd_bootas = BOOTAS $@
cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
quiet_cmd_bootar = BOOTAR $@
cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,bootcc)
$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,bootas)
$(obj)/wrapper.a: $(obj-wlib) FORCE
$(call if_changed,bootar)
hostprogs-y := addnote addRamDisk hack-coff mktree dtc
targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
dtstree := $(srctree)/$(src)/dts
wrapper :=$(srctree)/$(src)/wrapper
wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
$(wrapper) FORCE
#############
# Bits for building dtc
# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
# prerequisites on generated files needs to be explicit
$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
$(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h
HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
targets += dtc-src/dtc-parser.tab.c
targets += dtc-src/dtc-lexer.lex.c
ifdef DTC_GENPARSER
BISON = bison
FLEX = flex
quiet_cmd_bison = BISON $@
cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
quiet_cmd_flex = FLEX $@
cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
$(call if_changed,bison)
$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
$(call if_changed,flex)
endif
#############
# Bits for building various flavours of zImage
ifneq ($(CROSS32_COMPILE),)
CROSSWRAP := -C "$(CROSS32_COMPILE)"
else
ifneq ($(CROSS_COMPILE),)
CROSSWRAP := -C "$(CROSS_COMPILE)"
endif
endif
# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
quiet_cmd_wrap = WRAP $@
cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
$(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
image-$(CONFIG_PPC_PSERIES) += zImage.pseries
image-$(CONFIG_PPC_MAPLE) += zImage.pseries
image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
image-$(CONFIG_PPC_PS3) += zImage-dtb.ps3
image-$(CONFIG_PPC_CELLEB) += zImage.pseries
image-$(CONFIG_PPC_CHRP) += zImage.chrp
image-$(CONFIG_PPC_EFIKA) += zImage.chrp
image-$(CONFIG_PPC_PMAC) += zImage.pmac
image-$(CONFIG_PPC_HOLLY) += zImage.holly
image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800
image-$(CONFIG_PPC_ISERIES) += zImage.iseries
image-$(CONFIG_DEFAULT_UIMAGE) += uImage
#
# Targets which embed a device tree blob
#
# Theses are default targets to build images which embed device tree blobs.
# They are only required on boards which do not have FDT support in firmware.
# Boards with newish u-boot firmare can use the uImage target above
#
# Board ports in arch/powerpc/platform/40x/Kconfig
image-$(CONFIG_EP405) += zImage-dtb.ep405
image-$(CONFIG_WALNUT) += treeImage.walnut
# Board ports in arch/powerpc/platform/44x/Kconfig
image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
image-$(CONFIG_SEQUOIA) += cuImage.sequoia
image-$(CONFIG_RAINIER) += cuImage.rainier
image-$(CONFIG_TAISHAN) += cuImage.taishan
image-$(CONFIG_KATMAI) += cuImage.katmai
image-$(CONFIG_WARP) += cuImage.warp
# Board ports in arch/powerpc/platform/8xx/Kconfig
image-$(CONFIG_PPC_MPC86XADS) += cuImage.mpc866ads
image-$(CONFIG_PPC_MPC885ADS) += cuImage.mpc885ads
image-$(CONFIG_PPC_EP88XC) += zImage-dtb.ep88xc
image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \
zImage-dtb.adder875-redboot
# Board ports in arch/powerpc/platform/52xx/Kconfig
image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b
# Board ports in arch/powerpc/platform/82xx/Kconfig
image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads
image-$(CONFIG_PQ2FADS) += cuImage.pq2fads
image-$(CONFIG_EP8248E) += zImage-dtb.ep8248e
# Board ports in arch/powerpc/platform/83xx/Kconfig
image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds
image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb
image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \
cuImage.mpc8349emitxgp
image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds
image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds
# Board ports in arch/powerpc/platform/85xx/Kconfig
image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads
image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads
image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \
cuImage.mpc8548cds \
cuImage.mpc8555cds
image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds
image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \
cuImage.mpc8572ds
image-$(CONFIG_TQM8540) += cuImage.tqm8540
image-$(CONFIG_TQM8541) += cuImage.tqm8541
image-$(CONFIG_TQM8555) += cuImage.tqm8555
image-$(CONFIG_TQM8560) += cuImage.tqm8560
image-$(CONFIG_SBC8548) += cuImage.tqm8548
image-$(CONFIG_SBC8560) += cuImage.tqm8560
# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
image-$(CONFIG_STORCENTER) += cuImage.storcenter
image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
ifeq ($(CONFIG_PPC32),y)
image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
endif
initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
initrd-y := $(patsubst zImage%, zImage.initrd%, \
$(patsubst treeImage%, treeImage.initrd%, $(image-y)))
initrd-y := $(filter-out $(image-y), $(initrd-y))
targets += $(image-y) $(initrd-y)
$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
# Don't put the ramdisk on the pattern rule; when its missing make will try
# the pattern rule with less dependencies that also matches (even with the
# hard dependency listed).
$(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
$(obj)/zImage.%: vmlinux $(wrapperbits)
$(call if_changed,wrap,$*)
$(obj)/zImage-dtb.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
$(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
$(obj)/zImage-dtb.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
$(call if_changed,wrap,$*,$(dtstree)/$*.dts)
# This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
# prefix
$(obj)/vmlinux.strip: vmlinux
$(STRIP) -s -R .comment $< -o $@
$(obj)/zImage.iseries: vmlinux
$(STRIP) -s -R .comment $< -o $@
$(obj)/uImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,uboot)
$(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts)
$(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
$(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts)
# If there isn't a platform selected then just strip the vmlinux.
ifeq (,$(image-y))
image-y := vmlinux.strip
endif
$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
@rm -f $@; ln $< $@
$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
@rm -f $@; ln $< $@
install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
# anything not in $(targets)
clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
otheros.bld
# clean up files cached by wrapper
clean-kernel := vmlinux.strip vmlinux.bin
clean-kernel += $(addsuffix .gz,$(clean-kernel))
# If not absolute clean-files are relative to $(obj).
clean-files += $(addprefix $(objtree)/, $(clean-kernel))
WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
WRAPPER_BINDIR := /usr/sbin
INSTALL := install
extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))
all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_mkdir = mkdir -p $@
quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
-e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
$(call cmd,mkdir)
$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
$(call cmd,install)
$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
$(call cmd,install_exe)
$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
$(call cmd,install_dts)
$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
$(call cmd,install_wrapper)
$(obj)/bootwrapper_install: $(all-installed)
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