1 # SPDX-License-Identifier: GPL-2.0
2 KBUILD_DEFCONFIG := mmu_defconfig
3
4 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
5
6 # What CPU version are we building for, and cr
7 # as major.minor.rev
8 CPU_VER := $(CONFIG_XILINX_MICROBLAZE0_HW_VE
9 CPU_MAJOR := $(word 1, $(subst ., , $(CPU_VER)
10 CPU_MINOR := $(word 2, $(subst ., , $(CPU_VER)
11 CPU_REV := $(word 3, $(subst ., , $(CPU_VER)
12
13 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
14
15 # Use cpu-related CONFIG_ vars to set compile
16 # The various CONFIG_XILINX cpu features optio
17 # rather than bools y/n
18
19 # Work out HW multipler support. This is trick
20 # 1. Spartan2 has no HW multipliers.
21 # 2. MicroBlaze v3.x always uses them, except
22 # 3. All other FPGa/CPU ver combos, we can tru
23 ifeq (,$(findstring spartan2,$(CONFIG_XILINX_M
24 ifeq ($(CPU_MAJOR),3)
25 CPUFLAGS-1 += -mno-xl-soft-mul
26 else
27 # USE_HW_MUL can be 0, 1, or 2, defining a
28 CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROB
29 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_H
30 endif
31 endif
32 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV)
33 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARRE
34 CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_
35
36 ifdef CONFIG_CPU_BIG_ENDIAN
37 KBUILD_CFLAGS += -mbig-endian
38 KBUILD_AFLAGS += -mbig-endian
39 KBUILD_LDFLAGS += -EB
40 else
41 KBUILD_CFLAGS += -mlittle-endian
42 KBUILD_AFLAGS += -mlittle-endian
43 KBUILD_LDFLAGS += -EL
44 endif
45
46 CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VE
47
48 # r31 holds current when in kernel mode
49 KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(C
50
51 libs-y += arch/microblaze/lib/
52
53 boot := arch/microblaze/boot
54
55 # Are we making a simpleImage.<boardname> targ
56 DTB:=$(subst simpleImage.,,$(filter simpleImag
57
58 export DTB
59
60 all: linux.bin
61
62 archheaders:
63 $(Q)$(MAKE) $(build)=arch/microblaze/k
64
65 PHONY += linux.bin linux.bin.gz linux.bin.ub
66 linux.bin.ub linux.bin.gz: linux.bin
67 linux.bin: vmlinux
68 linux.bin linux.bin.gz linux.bin.ub:
69 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$
70 @echo 'Kernel: $(boot)/$@ is ready' '
71
72 PHONY += simpleImage.$(DTB)
73 simpleImage.$(DTB): vmlinux
74 $(Q)$(MAKE) $(build)=$(boot) $(addpref
75 @echo 'Kernel: $(boot)/$@ is ready' '
76
77 define archhelp
78 echo '* linux.bin - Create raw binary'
79 echo ' linux.bin.gz - Create compressed raw
80 echo ' linux.bin.ub - Create U-Boot wrapped
81 echo ' simpleImage.<dt> - Create the follow
82 echo ' simpleImage.<dt>
83 echo ' simpleImage.<dt>.u
84 echo ' simpleImage.<dt>.u
85 echo ' simpleImage.<dt>.s
86 echo ' Targets with <dt> embed a device tre
87 echo ' These targets support board with fir
88 echo ' support passing a device tree direct
89 echo ' name of a dts file from the arch/mic
90 echo ' (minus the .dts extension).'
91 endef
92
93 MRPROPER_FILES += $(boot)/simpleImage.*
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