mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 19:53:59 +08:00
37c8a5fafa
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>
105 lines
3.4 KiB
Makefile
105 lines
3.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
KBUILD_DEFCONFIG := mmu_defconfig
|
|
|
|
ifeq ($(CONFIG_MMU),y)
|
|
UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
|
|
else
|
|
UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
|
|
endif
|
|
|
|
# What CPU vesion are we building for, and crack it open
|
|
# as major.minor.rev
|
|
CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER))
|
|
CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
|
|
CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
|
|
CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
|
|
|
|
export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
|
|
|
|
# Use cpu-related CONFIG_ vars to set compile options.
|
|
# The various CONFIG_XILINX cpu features options are integers 0/1/2...
|
|
# rather than bools y/n
|
|
|
|
# Work out HW multipler support. This is tricky.
|
|
# 1. Spartan2 has no HW multipliers.
|
|
# 2. MicroBlaze v3.x always uses them, except in Spartan 2
|
|
# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
|
|
ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
|
|
ifeq ($(CPU_MAJOR),3)
|
|
CPUFLAGS-1 += -mno-xl-soft-mul
|
|
else
|
|
# USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
|
|
CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
|
|
endif
|
|
endif
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
|
|
CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
|
|
|
|
ifdef CONFIG_CPU_BIG_ENDIAN
|
|
KBUILD_CFLAGS += -mbig-endian
|
|
KBUILD_AFLAGS += -mbig-endian
|
|
KBUILD_LDFLAGS += -EB
|
|
else
|
|
KBUILD_CFLAGS += -mlittle-endian
|
|
KBUILD_AFLAGS += -mlittle-endian
|
|
KBUILD_LDFLAGS += -EL
|
|
endif
|
|
|
|
CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
|
|
|
|
# r31 holds current when in kernel mode
|
|
KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2)
|
|
|
|
head-y := arch/microblaze/kernel/head.o
|
|
libs-y += arch/microblaze/lib/
|
|
core-y += arch/microblaze/kernel/
|
|
core-y += arch/microblaze/mm/
|
|
core-$(CONFIG_PCI) += arch/microblaze/pci/
|
|
|
|
drivers-$(CONFIG_OPROFILE) += arch/microblaze/oprofile/
|
|
|
|
boot := arch/microblaze/boot
|
|
|
|
# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
|
|
DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
|
|
|
|
core-y += $(boot)/dts/
|
|
|
|
# defines filename extension depending memory management type
|
|
ifeq ($(CONFIG_MMU),)
|
|
MMU := -nommu
|
|
endif
|
|
|
|
export MMU DTB
|
|
|
|
all: linux.bin
|
|
|
|
archclean:
|
|
$(Q)$(MAKE) $(clean)=$(boot)
|
|
|
|
linux.bin linux.bin.gz linux.bin.ub: vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
|
|
|
simpleImage.%: vmlinux
|
|
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
|
|
|
|
define archhelp
|
|
echo '* linux.bin - Create raw binary'
|
|
echo ' linux.bin.gz - Create compressed raw binary'
|
|
echo ' linux.bin.ub - Create U-Boot wrapped raw binary'
|
|
echo ' simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
|
|
echo ' - stripped elf with fdt blob'
|
|
echo ' simpleImage.<dt>.unstrip - full ELF image with fdt blob'
|
|
echo ' *_defconfig - Select default config from arch/microblaze/configs'
|
|
echo ''
|
|
echo ' Targets with <dt> embed a device tree blob inside the image'
|
|
echo ' These targets support board with firmware that does not'
|
|
echo ' support passing a device tree directly. Replace <dt> with the'
|
|
echo ' name of a dts file from the arch/microblaze/boot/dts/ directory'
|
|
echo ' (minus the .dts extension).'
|
|
endef
|
|
|
|
MRPROPER_FILES += $(boot)/simpleImage.*
|