# SPDX-License-Identifier: GPL-2.0KBUILD_DEFCONFIG := mmu_defconfig UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\" # What CPU version are we building for, and crack it open# as major.minor.revCPU_VER   := $(CONFIG_XILINX_MICROBLAZE0_HW_VER)CPU_MAJOR := $(word 1, $(subst ., , $(CPU_VER)))CPU_MINOR := $(word 2, $(subst ., , $(CPU_VER)))CPU_REV   := $(word 3, $(subst ., , $(CPU_VER))) export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV # Use cpu-related CONFIG_ vars to set compile options.# The various CONFIG_XILINX cpu features options are integers 0/1/2...# rather than bools y/n # Work out HW multipler support. This is tricky.# 1. Spartan2 has no HW multipliers.# 2. MicroBlaze v3.x always uses them, except in Spartan 2# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settingsifeq (,$(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-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul  endifendifCPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-divCPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shiftCPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare ifdef CONFIG_CPU_BIG_ENDIANKBUILD_CFLAGS += -mbig-endianKBUILD_AFLAGS += -mbig-endianKBUILD_LDFLAGS += -EBelseKBUILD_CFLAGS += -mlittle-endianKBUILD_AFLAGS += -mlittle-endianKBUILD_LDFLAGS += -ELendif CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER)) # r31 holds current when in kernel modeKBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2) libs-y += arch/microblaze/lib/ boot := arch/microblaze/boot # Are we making a simpleImage.<boardname> target? If so, crack out the boardnameDTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS))) export DTB all: linux.bin archheaders:	$(Q)$(MAKE) $(build)=arch/microblaze/kernel/syscalls all PHONY += linux.bin linux.bin.gz linux.bin.ublinux.bin.ub linux.bin.gz: linux.binlinux.bin: vmlinuxlinux.bin linux.bin.gz linux.bin.ub:	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@	@echo 'Kernel: $(boot)/$@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')' PHONY += simpleImage.$(DTB)simpleImage.$(DTB): vmlinux	$(Q)$(MAKE) $(build)=$(boot) $(addprefix $(boot)/$@., ub unstrip strip)	@echo 'Kernel: $(boot)/$@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')' 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> - Create the following images with <dt>.dtb linked in'  echo '                    simpleImage.<dt>        : raw image'  echo '                    simpleImage.<dt>.ub     : raw image with U-Boot header'  echo '                    simpleImage.<dt>.unstrip: ELF (identical to vmlinux)'  echo '                    simpleImage.<dt>.strip  : stripped ELF'  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.*