# This is far from simple, but I couldn't think of a good name. This is
# for making the 'zImage' or 'zImage.initrd' on a number of targets.
#
# Author: Tom Rini <trini@mvista.com>
#
# Notes:
# (1) For machines that do not want to use the ELF image directly (including
# stripping just the ELF header off), they must set the variables
# zimage-$(CONFIG_MACHINE) and zimagerd-$(CONFIG_MACHINE) to the target
# that produces the desired image and they must set end-$(CONFIG_MACHINE)
# to what will be suffixed to the image filename.
# (2) Regardless of (1), to have the resulting image be something other
# than 'zImage.elf', set end-$(CONFIG_MACHINE) to be the suffix used for
# the zImage, znetboot, and znetbootrd targets.
# (3) For machine targets which use the mktree program, you can optionally
# set entrypoint-$(CONFIG_MACHINE) to the location which the image should be
# loaded at. The optimal setting for entrypoint-$(CONFIG_MACHINE) is the link
# address.
# (4) It is advisable to pass in the memory size using BI_MEMSIZE and
# get_mem_size(), which is memory controller dependent. Add in the correct
# XXX_memory.o file for this to work, as well as editing the
# misc-$(CONFIG_MACHINE) variable.
boot := arch/ppc/boot
common := $(boot)/common
utils := $(boot)/utils
bootlib := $(boot)/lib
images := $(boot)/images
of1275 := $(boot)/of1275
tftpboot := /tftpboot
# Normally, we use the 'misc.c' file for decompress_kernel and
# whatnot. Sometimes we need to override this however.
misc-y := misc.o
# Normally, we have our images end in .elf, but something we want to
# change this.
end-y := elf
# Additionally, we normally don't need to mess with the L2 / L3 caches
# if present on 'classic' PPC.
cacheflag-y := -DCLEAR_CACHES=""
# This file will flush / disable the L2, and L3 if present.
clear_L2_L3 := $(srctree)/$(boot)/simple/clear.S
#
# See arch/ppc/kconfig and arch/ppc/platforms/Kconfig
# for definition of what platform each config option refer to.
#----------------------------------------------------------------------------
zimage-$(CONFIG_CPCI690) := zImage-STRIPELF
zimageinitrd-$(CONFIG_CPCI690) := zImage.initrd-STRIPELF
extra.o-$(CONFIG_CPCI690) := misc-cpci690.o
end-$(CONFIG_CPCI690) := cpci690
cacheflag-$(CONFIG_CPCI690) := -include $(clear_L2_L3)
zimage-$(CONFIG_IBM_OPENBIOS) := zImage-TREE
zimageinitrd-$(CONFIG_IBM_OPENBIOS) := zImage.initrd-TREE
end-$(CONFIG_IBM_OPENBIOS) := treeboot
misc-$(CONFIG_IBM_OPENBIOS) := misc-embedded.o
end-$(CONFIG_EMBEDDEDBOOT) := embedded
misc-$(CONFIG_EMBEDDEDBOOT) := misc-embedded.o
zimage-$(CONFIG_EBONY) := zImage-TREE
zimageinitrd-$(CONFIG_EBONY) := zImage.initrd-TREE
end-$(CONFIG_EBONY) := ebony
entrypoint-$(CONFIG_EBONY) := 0x01000000
extra.o-$(CONFIG_EBONY) := openbios.o
zimage-$(CONFIG_LUAN) := zImage-TREE
zimageinitrd-$(CONFIG_LUAN) := zImage.initrd-TREE
end-$(CONFIG_LUAN) := luan
entrypoint-$(CONFIG_LUAN) := 0x01000000
extra.o-$(CONFIG_LUAN) := pibs.o
zimage-$(CONFIG_OCOTEA) := zImage-TREE
zimageinitrd-$(CONFIG_OCOTEA) := zImage.initrd-TREE
end-$(CONFIG_OCOTEA) := ocotea
entrypoint-$(CONFIG_OCOTEA) := 0x01000000
extra.o-$(CONFIG_OCOTEA) := pibs.o
extra.o-$(CONFIG_EV64260) := misc-ev64260.o
end-$(CONFIG_EV64260) := ev64260
cacheflag-$(CONFIG_EV64260) := -include $(clear_L2_L3)
extra.o-$(CONFIG_CHESTNUT) := misc-chestnut.o
end-$(CONFIG_CHESTNUT) := chestnut
zimage-$(CONFIG_GEMINI) := zImage-STRIPELF
zimageinitrd-$(CONFIG_GEMINI) := zImage.initrd-STRIPELF
end-$(CONFIG_GEMINI) := gemini
extra.o-$(CONFIG_K2) := prepmap.o
end-$(CONFIG_K2) := k2
cacheflag-$(CONFIG_K2) := -include $(clear_L2_L3)
extra.o-$(CONFIG_KATANA) := misc-katana.o
end-$(CONFIG_KATANA) := katana
cacheflag-$(CONFIG_KATANA) := -include $(clear_L2_L3)
extra.o-$(CONFIG_RADSTONE_PPC7D) := misc-radstone_ppc7d.o
end-$(CONFIG_RADSTONE_PPC7D) := radstone_ppc7d
cacheflag-$(CONFIG_RADSTONE_PPC7D) := -include $(clear_L2_L3)
# kconfig 'feature', only one of these will ever be 'y' at a time.
# The rest will be unset.
motorola := $(CONFIG_MCPN765)$(CONFIG_MVME5100)$(CONFIG_PRPMC750) \
$(CONFIG_PRPMC800)$(CONFIG_LOPEC)$(CONFIG_PPLUS)
motorola := $(strip $(motorola))
pcore := $(CONFIG_PCORE)$(CONFIG_POWERPMC250)
zimage-$(motorola) := zImage-PPLUS
zimageinitrd-$(motorola) := zImage.initrd-PPLUS
end-$(motorola) := pplus
# Overrides previous assingment
extra.o-$(CONFIG_PPLUS) := prepmap.o
extra.o-$(CONFIG_LOPEC) := mpc10x_memory.o
zimage-$(pcore) := zImage-STRIPELF
zimageinitrd-$(pcore) := zImage.initrd-STRIPELF
extra.o-$(pcore) := chrpmap.o
end-$(pcore) := pcore
cacheflag-$(pcore) := -include $(clear_L2_L3)
# Really only valid if CONFIG_6xx=y
zimage-$(CONFIG_PPC_PREP) := zImage-PPLUS
zimageinitrd-$(CONFIG_PPC_PREP) := zImage.initrd-PPLUS
ifeq ($(CONFIG_6xx),y)
extra.o-$(CONFIG_PPC_PREP) := prepmap.o
misc-$(CONFIG_PPC_PREP) += misc-prep.o mpc10x_memory.o
endif
end-$(CONFIG_PPC_PREP) := prep
end-$(CONFIG_SANDPOINT) := sandpoint
cacheflag-$(CONFIG_SANDPOINT) := -include $(clear_L2_L3)
zimage-$(CONFIG_SPRUCE) := zImage-TREE
zimageinitrd-$(CONFIG_SPRUCE) := zImage.initrd-TREE
end-$(CONFIG_SPRUCE) := spruce
entrypoint-$(CONFIG_SPRUCE) := 0x00800000
misc-$(CONFIG_SPRUCE) += misc-spruce.o
zimage-$(CONFIG_LITE5200) := zImage-STRIPELF
zimageinitrd-$(CONFIG_LITE5200) := zImage.initrd-STRIPELF
end-$(CONFIG_LITE5200) := lite5200
cacheflag-$(CONFIG_LITE5200) := -include $(clear_L2_L3)
# SMP images should have a '.smp' suffix.
end-$(CONFIG_SMP) := $(end-y).smp
# This is a treeboot that needs init functions until the
# boot rom is sorted out (i.e. this is short lived)
extra-aflags-$(CONFIG_REDWOOD_4) := -Wa,-m405
extra.o-$(CONFIG_REDWOOD_4) := rw4/rw4_init.o rw4/rw4_init_brd.o
EXTRA_AFLAGS := $(extra-aflags-y)
# head.o needs to get the cacheflags defined.
AFLAGS_head.o += $(cacheflag-y)
# Linker args. This specifies where the image will be run at.
LD_ARGS := -T $(srctree)/$(boot)/ld.script \
-Ttext $(CONFIG_BOOT_LOAD) -Bstatic
OBJCOPY_ARGS := -O elf32-powerpc
# head.o and relocate.o must be at the start.
boot-y := head.o relocate.o $(extra.o-y) $(misc-y)
boot-$(CONFIG_40x) += embed_config.o
boot-$(CONFIG_8xx) += embed_config.o
boot-$(CONFIG_8260) += embed_config.o
boot-$(CONFIG_BSEIP) += iic.o
boot-$(CONFIG_MBX) += iic.o pci.o qspan_pci.o
boot-$(CONFIG_MV64X60) += misc-mv64x60.o
boot-$(CONFIG_RPXCLASSIC) += iic.o pci.o qspan_pci.o
boot-$(CONFIG_RPXLITE) += iic.o
# Different boards need different serial implementations.
ifeq ($(CONFIG_SERIAL_CPM_CONSOLE),y)
boot-$(CONFIG_8xx) += m8xx_tty.o
boot-$(CONFIG_8260) += m8260_tty.o
endif
boot-$(CONFIG_SERIAL_MPC52xx_CONSOLE) += mpc52xx_tty.o
boot-$(CONFIG_SERIAL_MPSC_CONSOLE) += mv64x60_tty.o
LIBS := $(common)/lib.a $(bootlib)/lib.a
ifeq ($(CONFIG_PPC_PREP),y)
LIBS += $(of1275)/lib.a
endif
OBJS := $(addprefix $(obj)/,$(boot-y))
# Tools
MKBUGBOOT := $(utils)/mkbugboot
MKPREP := $(utils)/mkprep
MKTREE := $(utils)/mktree
targets := dummy.o
$(obj)/zvmlinux: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \
$(images)/vmlinux.gz $(obj)/dummy.o
$(OBJCOPY) $(OBJCOPY_ARGS) \
--add-section=.image=$(images)/vmlinux.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data \
$(obj)/dummy.o $(obj)/image.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS)
$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \
-R .stabstr -R .ramdisk
$(obj)/zvmlinux.initrd: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \
$(images)/vmlinux.gz $(obj)/dummy.o
$(OBJCOPY) $(OBJCOPY_ARGS) \
--add-section=.ramdisk=$(images)/ramdisk.image.gz \
--set-section-flags=.ramdisk=contents,alloc,load,readonly,data \
--add-section=.image=$(images)/vmlinux.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data \
$(obj)/dummy.o $(obj)/image.o
$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS)
$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \
-R .stabstr
# Sort-of dummy rules, that let us format the image we want.
zImage: $(images)/$(zimage-y) $(obj)/zvmlinux
cp -f $(obj)/zvmlinux $(images)/zImage.elf
rm -f $(obj)/zvmlinux
zImage.initrd: $(images)/$(zimageinitrd-y) $(obj)/zvmlinux.initrd
cp -f $(obj)/zvmlinux.initrd $(images)/zImage.initrd.elf
rm -f $(obj)/zvmlinux.initrd
znetboot: zImage
cp $(images)/zImage.$(end-y) $(tftpboot)/zImage.$(end-y)
znetboot.initrd: zImage.initrd
cp $(images)/zImage.initrd.$(end-y) $(tftpboot)/zImage.initrd.$(end-y)
$(images)/zImage-STRIPELF: $(obj)/zvmlinux
dd if=$(obj)/zvmlinux of=$(images)/zImage.$(end-y) skip=64 bs=1k
$(images)/zImage.initrd-STRIPELF: $(obj)/zvmlinux.initrd
dd if=$(obj)/zvmlinux.initrd of=$(images)/zImage.initrd.$(end-y) \
skip=64 bs=1k
$(images)/zImage-TREE: $(obj)/zvmlinux $(MKTREE)
$(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(end-y) $(ENTRYPOINT)
$(images)/zImage.initrd-TREE: $(obj)/zvmlinux.initrd $(MKTREE)
$(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y) \
$(ENTRYPOINT)
$(images)/zImage-PPLUS: $(obj)/zvmlinux $(MKPREP) $(MKBUGBOOT)
$(MKPREP) -pbp $(obj)/zvmlinux $(images)/zImage.$(end-y)
$(MKBUGBOOT) $(obj)/zvmlinux $(images)/zImage.bugboot
$(images)/zImage.initrd-PPLUS: $(obj)/zvmlinux.initrd $(MKPREP) $(MKBUGBOOT)
$(MKPREP) -pbp $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y)
$(MKBUGBOOT) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.bugboot
