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There is nothing arch specific about building dtb files other than their location under /arch/*/boot/dts/. Keeping each arch aligned is a pain. The dependencies and supported targets are all slightly different. Also, a cross-compiler for each arch is needed, but really the host compiler preprocessor is perfectly fine for building dtbs. Move the build rules to a common location and remove the arch specific ones. This is done in a single step to avoid warnings about overriding rules. The build dependencies had been a mixture of 'scripts' and/or 'prepare'. These pull in several dependencies some of which need a target compiler (specifically devicetable-offsets.h) and aren't needed to build dtbs. All that is really needed is dtc, so adjust the dependencies to only be dtc. This change enables support 'dtbs_install' on some arches which were missing the target. Acked-by: Will Deacon <will.deacon@arm.com> Acked-by: Paul Burton <paul.burton@mips.com> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Michal Marek <michal.lkml@markovi.net> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: linux-kbuild@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: uclinux-h8-devel@lists.sourceforge.jp Cc: linux-mips@linux-mips.org Cc: nios2-dev@lists.rocketboards.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-xtensa@linux-xtensa.org Signed-off-by: Rob Herring <robh@kernel.org>
61 lines
1.6 KiB
Makefile
61 lines
1.6 KiB
Makefile
#
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# linux/arch/c6x/Makefile
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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KBUILD_DEFCONFIG := dsk6455_defconfig
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cflags-y += -mno-dsbt -msdata=none -D__linux__
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cflags-$(CONFIG_C6X_BIG_KERNEL) += -mlong-calls
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KBUILD_CFLAGS_MODULE += -mlong-calls -mno-dsbt -msdata=none
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CHECKFLAGS +=
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_AFLAGS += $(cflags-y)
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ifdef CONFIG_CPU_BIG_ENDIAN
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KBUILD_CFLAGS += -mbig-endian
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KBUILD_AFLAGS += -mbig-endian
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LINKFLAGS += -mbig-endian
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KBUILD_LDFLAGS += -mbig-endian -EB
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CHECKFLAGS += -D_BIG_ENDIAN
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endif
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head-y := arch/c6x/kernel/head.o
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core-y += arch/c6x/kernel/ arch/c6x/mm/ arch/c6x/platforms/
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libs-y += arch/c6x/lib/
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# Default to vmlinux.bin, override when needed
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all: vmlinux.bin
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boot := arch/$(ARCH)/boot
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# Are we making a dtbImage.<boardname> target? If so, crack out the boardname
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DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS)))
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export DTB
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core-y += $(boot)/dts/
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# With make 3.82 we cannot mix normal and wildcard targets
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vmlinux.bin: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
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dtbImage.%: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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define archhelp
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@echo ' vmlinux.bin - Binary kernel image (arch/$(ARCH)/boot/vmlinux.bin)'
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@echo ' dtbImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
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@echo ' - stripped elf with fdt blob'
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endef
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