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# This is far from simple, but I couldn't think of a good name. This is
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# for making the 'zImage' or 'zImage.initrd' on a number of targets.
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#
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# Author: Tom Rini <trini@mvista.com>
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#
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# Notes:
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# (1) For machines that do not want to use the ELF image directly (including
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# stripping just the ELF header off), they must set the variables
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# zimage-$(CONFIG_MACHINE) and zimagerd-$(CONFIG_MACHINE) to the target
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# that produces the desired image and they must set end-$(CONFIG_MACHINE)
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# to what will be suffixed to the image filename.
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# (2) Regardless of (1), to have the resulting image be something other
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# than 'zImage.elf', set end-$(CONFIG_MACHINE) to be the suffix used for
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# the zImage, znetboot, and znetbootrd targets.
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# (3) For machine targets which use the mktree program, you can optionally
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# set entrypoint-$(CONFIG_MACHINE) to the location which the image should be
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# loaded at. The optimal setting for entrypoint-$(CONFIG_MACHINE) is the link
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# address.
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# (4) It is advisable to pass in the memory size using BI_MEMSIZE and
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# get_mem_size(), which is memory controller dependent. Add in the correct
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# XXX_memory.o file for this to work, as well as editing the
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# misc-$(CONFIG_MACHINE) variable.
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boot := arch/ppc/boot
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common := $(boot)/common
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utils := $(boot)/utils
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bootlib := $(boot)/lib
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images := $(boot)/images
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of1275 := $(boot)/of1275
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tftpboot := /tftpboot
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# Normally, we use the 'misc.c' file for decompress_kernel and
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# whatnot. Sometimes we need to override this however.
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misc-y := misc.o
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# Normally, we have our images end in .elf, but something we want to
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# change this.
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end-y := elf
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# Additionally, we normally don't need to mess with the L2 / L3 caches
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# if present on 'classic' PPC.
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cacheflag-y := -DCLEAR_CACHES=""
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# This file will flush / disable the L2, and L3 if present.
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clear_L2_L3 := $(srctree)/$(boot)/simple/clear.S
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#
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# See arch/ppc/kconfig and arch/ppc/platforms/Kconfig
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# for definition of what platform each config option refer to.
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#----------------------------------------------------------------------------
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zimage-$(CONFIG_CPCI690) := zImage-STRIPELF
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zimageinitrd-$(CONFIG_CPCI690) := zImage.initrd-STRIPELF
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extra.o-$(CONFIG_CPCI690) := misc-cpci690.o
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end-$(CONFIG_CPCI690) := cpci690
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cacheflag-$(CONFIG_CPCI690) := -include $(clear_L2_L3)
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zimage-$(CONFIG_IBM_OPENBIOS) := zImage-TREE
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zimageinitrd-$(CONFIG_IBM_OPENBIOS) := zImage.initrd-TREE
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end-$(CONFIG_IBM_OPENBIOS) := treeboot
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misc-$(CONFIG_IBM_OPENBIOS) := misc-embedded.o
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end-$(CONFIG_EMBEDDEDBOOT) := embedded
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misc-$(CONFIG_EMBEDDEDBOOT) := misc-embedded.o
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zimage-$(CONFIG_BAMBOO) := zImage-TREE
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zimageinitrd-$(CONFIG_BAMBOO) := zImage.initrd-TREE
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end-$(CONFIG_BAMBOO) := bamboo
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entrypoint-$(CONFIG_BAMBOO) := 0x01000000
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extra.o-$(CONFIG_BAMBOO) := pibs.o
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zimage-$(CONFIG_BUBINGA) := zImage-TREE
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zimageinitrd-$(CONFIG_BUBINGA) := zImage.initrd-TREE
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end-$(CONFIG_BUBINGA) := bubinga
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entrypoint-$(CONFIG_BUBINGA) := 0x01000000
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extra.o-$(CONFIG_BUBINGA) := openbios.o
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zimage-$(CONFIG_EBONY) := zImage-TREE
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zimageinitrd-$(CONFIG_EBONY) := zImage.initrd-TREE
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end-$(CONFIG_EBONY) := ebony
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entrypoint-$(CONFIG_EBONY) := 0x01000000
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extra.o-$(CONFIG_EBONY) := openbios.o
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zimage-$(CONFIG_LUAN) := zImage-TREE
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zimageinitrd-$(CONFIG_LUAN) := zImage.initrd-TREE
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end-$(CONFIG_LUAN) := luan
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entrypoint-$(CONFIG_LUAN) := 0x01000000
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extra.o-$(CONFIG_LUAN) := pibs.o
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zimage-$(CONFIG_YUCCA) := zImage-TREE
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zimageinitrd-$(CONFIG_YUCCA) := zImage.initrd-TREE
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end-$(CONFIG_YUCCA) := yucca
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entrypoint-$(CONFIG_YUCCA) := 0x01000000
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extra.o-$(CONFIG_YUCCA) := pibs.o
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zimage-$(CONFIG_OCOTEA) := zImage-TREE
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zimageinitrd-$(CONFIG_OCOTEA) := zImage.initrd-TREE
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end-$(CONFIG_OCOTEA) := ocotea
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entrypoint-$(CONFIG_OCOTEA) := 0x01000000
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extra.o-$(CONFIG_OCOTEA) := pibs.o
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zimage-$(CONFIG_SYCAMORE) := zImage-TREE
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zimageinitrd-$(CONFIG_SYCAMORE) := zImage.initrd-TREE
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end-$(CONFIG_SYCAMORE) := sycamore
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entrypoint-$(CONFIG_SYCAMORE) := 0x01000000
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extra.o-$(CONFIG_SYCAMORE) := openbios.o
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zimage-$(CONFIG_WALNUT) := zImage-TREE
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zimageinitrd-$(CONFIG_WALNUT) := zImage.initrd-TREE
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end-$(CONFIG_WALNUT) := walnut
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entrypoint-$(CONFIG_WALNUT) := 0x01000000
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extra.o-$(CONFIG_WALNUT) := openbios.o
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extra.o-$(CONFIG_EV64260) := misc-ev64260.o
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end-$(CONFIG_EV64260) := ev64260
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cacheflag-$(CONFIG_EV64260) := -include $(clear_L2_L3)
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extra.o-$(CONFIG_CHESTNUT) := misc-chestnut.o
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end-$(CONFIG_CHESTNUT) := chestnut
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zimage-$(CONFIG_GEMINI) := zImage-STRIPELF
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zimageinitrd-$(CONFIG_GEMINI) := zImage.initrd-STRIPELF
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end-$(CONFIG_GEMINI) := gemini
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extra.o-$(CONFIG_KATANA) := misc-katana.o
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end-$(CONFIG_KATANA) := katana
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cacheflag-$(CONFIG_KATANA) := -include $(clear_L2_L3)
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extra.o-$(CONFIG_RADSTONE_PPC7D) := misc-radstone_ppc7d.o
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end-$(CONFIG_RADSTONE_PPC7D) := radstone_ppc7d
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cacheflag-$(CONFIG_RADSTONE_PPC7D) := -include $(clear_L2_L3)
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extra.o-$(CONFIG_EV64360) := misc-ev64360.o
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end-$(CONFIG_EV64360) := ev64360
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cacheflag-$(CONFIG_EV64360) := -include $(clear_L2_L3)
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# kconfig 'feature', only one of these will ever be 'y' at a time.
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# The rest will be unset.
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motorola := $(CONFIG_MVME5100)$(CONFIG_PRPMC750) \
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$(CONFIG_PRPMC800)$(CONFIG_LOPEC)$(CONFIG_PPLUS)
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motorola := $(strip $(motorola))
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zimage-$(motorola) := zImage-PPLUS
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zimageinitrd-$(motorola) := zImage.initrd-PPLUS
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end-$(motorola) := pplus
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# Overrides previous assingment
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extra.o-$(CONFIG_PPLUS) := prepmap.o
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extra.o-$(CONFIG_LOPEC) := mpc10x_memory.o
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# Really only valid if CONFIG_6xx=y
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zimage-$(CONFIG_PPC_PREP) := zImage-PPLUS
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zimageinitrd-$(CONFIG_PPC_PREP) := zImage.initrd-PPLUS
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ifeq ($(CONFIG_6xx),y)
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extra.o-$(CONFIG_PPC_PREP) := prepmap.o
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misc-$(CONFIG_PPC_PREP) += misc-prep.o mpc10x_memory.o
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endif
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end-$(CONFIG_PPC_PREP) := prep
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end-$(CONFIG_SANDPOINT) := sandpoint
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cacheflag-$(CONFIG_SANDPOINT) := -include $(clear_L2_L3)
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zimage-$(CONFIG_SPRUCE) := zImage-TREE
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zimageinitrd-$(CONFIG_SPRUCE) := zImage.initrd-TREE
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end-$(CONFIG_SPRUCE) := spruce
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entrypoint-$(CONFIG_SPRUCE) := 0x00800000
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misc-$(CONFIG_SPRUCE) += misc-spruce.o
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zimage-$(CONFIG_LITE5200) := zImage-STRIPELF
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zimageinitrd-$(CONFIG_LITE5200) := zImage.initrd-STRIPELF
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end-$(CONFIG_LITE5200) := lite5200
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cacheflag-$(CONFIG_LITE5200) := -include $(clear_L2_L3)
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# SMP images should have a '.smp' suffix.
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end-$(CONFIG_SMP) := $(end-y).smp
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# This is a treeboot that needs init functions until the
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# boot rom is sorted out (i.e. this is short lived)
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EXTRA_AFLAGS := $(extra-aflags-y)
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# head.o needs to get the cacheflags defined.
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AFLAGS_head.o += $(cacheflag-y)
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# Linker args. This specifies where the image will be run at.
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LD_ARGS := -T $(srctree)/$(boot)/ld.script \
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-Ttext $(CONFIG_BOOT_LOAD) -Bstatic
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OBJCOPY_ARGS := -O elf32-powerpc
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# head.o and relocate.o must be at the start.
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boot-y := head.o relocate.o $(extra.o-y) $(misc-y)
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boot-$(CONFIG_REDWOOD_5) += embed_config.o
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boot-$(CONFIG_REDWOOD_6) += embed_config.o
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boot-$(CONFIG_8xx) += embed_config.o
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boot-$(CONFIG_8260) += embed_config.o
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boot-$(CONFIG_EP405) += embed_config.o
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boot-$(CONFIG_XILINX_ML300) += embed_config.o
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boot-$(CONFIG_XILINX_ML403) += embed_config.o
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boot-$(CONFIG_BSEIP) += iic.o
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boot-$(CONFIG_MBX) += iic.o pci.o qspan_pci.o
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boot-$(CONFIG_MV64X60) += misc-mv64x60.o
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boot-$(CONFIG_RPXCLASSIC) += iic.o pci.o qspan_pci.o
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boot-$(CONFIG_RPXLITE) += iic.o
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# Different boards need different serial implementations.
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ifeq ($(CONFIG_SERIAL_CPM_CONSOLE),y)
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boot-$(CONFIG_8xx) += m8xx_tty.o
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boot-$(CONFIG_8260) += m8260_tty.o
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endif
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boot-$(CONFIG_SERIAL_MPC52xx_CONSOLE) += mpc52xx_tty.o
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boot-$(CONFIG_SERIAL_MPSC_CONSOLE) += mv64x60_tty.o
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LIBS := $(common)/lib.a $(bootlib)/lib.a
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ifeq ($(CONFIG_PPC_PREP),y)
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LIBS += $(of1275)/lib.a
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endif
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OBJS := $(addprefix $(obj)/,$(boot-y))
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# Tools
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MKBUGBOOT := $(utils)/mkbugboot
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MKPREP := $(utils)/mkprep
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MKTREE := $(utils)/mktree
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targets := dummy.o
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$(obj)/zvmlinux: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \
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$(images)/vmlinux.gz $(obj)/dummy.o
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$(OBJCOPY) $(OBJCOPY_ARGS) \
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--add-section=.image=$(images)/vmlinux.gz \
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--set-section-flags=.image=contents,alloc,load,readonly,data \
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$(obj)/dummy.o $(obj)/image.o
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$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS)
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$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \
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-R .stabstr -R .ramdisk
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$(obj)/zvmlinux.initrd: $(OBJS) $(LIBS) $(srctree)/$(boot)/ld.script \
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$(images)/vmlinux.gz $(obj)/dummy.o
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$(OBJCOPY) $(OBJCOPY_ARGS) \
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--add-section=.ramdisk=$(images)/ramdisk.image.gz \
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--set-section-flags=.ramdisk=contents,alloc,load,readonly,data \
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--add-section=.image=$(images)/vmlinux.gz \
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--set-section-flags=.image=contents,alloc,load,readonly,data \
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$(obj)/dummy.o $(obj)/image.o
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$(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/image.o $(LIBS)
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$(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab \
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-R .stabstr
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# Sort-of dummy rules, that let us format the image we want.
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zImage: $(images)/$(zimage-y) $(obj)/zvmlinux
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cp -f $(obj)/zvmlinux $(images)/zImage.elf
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rm -f $(obj)/zvmlinux
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zImage.initrd: $(images)/$(zimageinitrd-y) $(obj)/zvmlinux.initrd
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cp -f $(obj)/zvmlinux.initrd $(images)/zImage.initrd.elf
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rm -f $(obj)/zvmlinux.initrd
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znetboot: zImage
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cp $(images)/zImage.$(end-y) $(tftpboot)/zImage.$(end-y)
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znetboot.initrd: zImage.initrd
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cp $(images)/zImage.initrd.$(end-y) $(tftpboot)/zImage.initrd.$(end-y)
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$(images)/zImage-STRIPELF: $(obj)/zvmlinux
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dd if=$(obj)/zvmlinux of=$(images)/zImage.$(end-y) skip=64 bs=1k
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$(images)/zImage.initrd-STRIPELF: $(obj)/zvmlinux.initrd
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dd if=$(obj)/zvmlinux.initrd of=$(images)/zImage.initrd.$(end-y) \
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skip=64 bs=1k
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$(images)/zImage-TREE: $(obj)/zvmlinux $(MKTREE)
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$(MKTREE) $(obj)/zvmlinux $(images)/zImage.$(end-y) $(entrypoint-y)
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$(images)/zImage.initrd-TREE: $(obj)/zvmlinux.initrd $(MKTREE)
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$(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y) \
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$(entrypoint-y)
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$(images)/zImage-PPLUS: $(obj)/zvmlinux $(MKPREP) $(MKBUGBOOT)
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$(MKPREP) -pbp $(obj)/zvmlinux $(images)/zImage.$(end-y)
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$(MKBUGBOOT) $(obj)/zvmlinux $(images)/zImage.bugboot
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$(images)/zImage.initrd-PPLUS: $(obj)/zvmlinux.initrd $(MKPREP) $(MKBUGBOOT)
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$(MKPREP) -pbp $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y)
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$(MKBUGBOOT) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.bugboot
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