1KBUILD_DEFCONFIG := mmu_defconfig 2 3ifeq ($(CONFIG_MMU),y) 4UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\" 5else 6UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\" 7endif 8 9# What CPU vesion are we building for, and crack it open 10# as major.minor.rev 11CPU_VER := $(shell echo $(CONFIG_XILINX_MICROBLAZE0_HW_VER)) 12CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1) 13CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2) 14CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3) 15 16export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV 17 18# Use cpu-related CONFIG_ vars to set compile options. 19# The various CONFIG_XILINX cpu features options are integers 0/1/2... 20# rather than bools y/n 21 22# Work out HW multipler support. This is tricky. 23# 1. Spartan2 has no HW multipliers. 24# 2. MicroBlaze v3.x always uses them, except in Spartan 2 25# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings 26ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY))) 27 ifeq ($(CPU_MAJOR),3) 28 CPUFLAGS-1 += -mno-xl-soft-mul 29 else 30 # USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support. 31 CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high 32 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul 33 endif 34endif 35CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div 36CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift 37CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare 38 39CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER)) 40 41# r31 holds current when in kernel mode 42KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2) 43 44LDFLAGS := 45LDFLAGS_vmlinux := 46 47head-y := arch/microblaze/kernel/head.o 48libs-y += arch/microblaze/lib/ 49core-y += arch/microblaze/kernel/ 50core-y += arch/microblaze/mm/ 51core-$(CONFIG_PCI) += arch/microblaze/pci/ 52 53drivers-$(CONFIG_OPROFILE) += arch/microblaze/oprofile/ 54 55boot := arch/microblaze/boot 56 57# Are we making a simpleImage.<boardname> target? If so, crack out the boardname 58DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS))) 59 60ifneq ($(DTB),) 61 core-y += $(boot)/dts/ 62endif 63 64# defines filename extension depending memory management type 65ifeq ($(CONFIG_MMU),) 66MMU := -nommu 67endif 68 69export MMU DTB 70 71all: linux.bin 72 73archclean: 74 $(Q)$(MAKE) $(clean)=$(boot) 75 76linux.bin linux.bin.gz linux.bin.ub: vmlinux 77 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 78 79simpleImage.%: vmlinux 80 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 81 82define archhelp 83 echo '* linux.bin - Create raw binary' 84 echo ' linux.bin.gz - Create compressed raw binary' 85 echo ' linux.bin.ub - Create U-Boot wrapped raw binary' 86 echo ' simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in' 87 echo ' - stripped elf with fdt blob' 88 echo ' simpleImage.<dt>.unstrip - full ELF image with fdt blob' 89 echo ' *_defconfig - Select default config from arch/microblaze/configs' 90 echo '' 91 echo ' Targets with <dt> embed a device tree blob inside the image' 92 echo ' These targets support board with firmware that does not' 93 echo ' support passing a device tree directly. Replace <dt> with the' 94 echo ' name of a dts file from the arch/microblaze/boot/dts/ directory' 95 echo ' (minus the .dts extension).' 96endef 97 98MRPROPER_FILES += $(boot)/simpleImage.* 99