1 files changed, 98 insertions, 0 deletions
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
new file mode 100644
index 000000000..740f2b82a
--- /dev/null
+++ b/arch/microblaze/Makefile
@@ -0,0 +1,98 @@
+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
+
+CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
+
+# r31 holds current when in kernel mode
+KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
+
+LDFLAGS		:=
+LDFLAGS_vmlinux	:=
+
+head-y := arch/microblaze/kernel/head.o
+libs-y += arch/microblaze/lib/
+core-y += arch/microblaze/kernel/
+core-y += arch/microblaze/mm/
+core-$(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.*