| 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 $(CPU_VER) | cut -d '.' -f 3) |
| |
| export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV |
| |
| # Use cpu-related CONFIG_ vars to set compile options. |
| # The various CONFIG_XILINX cpu features options are integers 0/1/2... |
| # rather than bools y/n |
| |
| # Work out HW multipler support. This is icky. |
| # 1. Spartan2 has no HW multiplers. |
| # 2. MicroBlaze v3.x always uses them, except in Spartan 2 |
| # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings |
| ifeq (,$(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 |
| |
| CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER)) |
| |
| # r31 holds current when in kernel mode |
| KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2) |
| |
| LDFLAGS := |
| LDFLAGS_vmlinux := |
| |
| LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) |
| |
| head-y := arch/microblaze/kernel/head.o |
| libs-y += arch/microblaze/lib/ |
| libs-y += $(LIBGCC) |
| core-y += arch/microblaze/kernel/ |
| core-y += arch/microblaze/mm/ |
| core-y += arch/microblaze/platform/ |
| core-$(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 += $(boot)/ |
| endif |
| |
| # defines filename extension depending memory management type |
| ifeq ($(CONFIG_MMU),) |
| MMU := -nommu |
| endif |
| |
| export MMU DTB |
| |
| all: linux.bin |
| |
| BOOT_TARGETS = linux.bin linux.bin.gz simpleImage.% |
| |
| archclean: |
| $(Q)$(MAKE) $(clean)=$(boot) |
| |
| $(BOOT_TARGETS): vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
| |
| define archhelp |
| echo '* linux.bin - Create raw binary' |
| echo ' linux.bin.gz - Create compressed 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.* |