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