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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | # 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.%, $(MAKECMDGOALS))) ifneq ($(DTB),) core-y += $(boot)/dts/ endif # defines filename extension depending memory management type ifeq ($(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.* |