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@@ -0,0 +1,69 @@
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+UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
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+
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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=$(subst ",,$(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 $(CPU_VER) | cut -d '.' -f 3)
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+
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+export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
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+
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+# Use cpu-related CONFIG_ vars to set compile options.
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+
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+# Work out HW multipler support. This is icky.
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+# 1. Spartan2 has no HW multiplers.
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+# 2. MicroBlaze v3.x always uses them, except in Spartan 2
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+# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
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+ifeq (,$(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 heirarchy 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) += -mxl-pattern-compare
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+
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+CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
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+
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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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+CFLAGS += $(CPUFLAGS-1)
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+CFLAGS += $(CPUFLAGS-2)
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+
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+# r31 holds current when in kernel mode
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+CFLAGS += -ffixed-r31
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+
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+LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
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+
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+LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
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+
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+head-y := arch/microblaze/kernel/head.o
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+libs-y += arch/microblaze/lib/ $(LIBGCC)
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+core-y += arch/microblaze/kernel/ arch/microblaze/mm/ \
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+ arch/microblaze/platform/
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+
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+boot := arch/$(ARCH)/boot
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+
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+# defines filename extension depending memory management type
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+ifeq ($(CONFIG_MMU),)
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+MMUEXT := -nommu
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+endif
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+export MMUEXT
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+
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+all: linux.bin
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+
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+archclean:
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+ $(Q)$(MAKE) $(clean)=$(boot)
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+
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+linux.bin linux.bin.gz: vmlinux
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+ $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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+
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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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+endef
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