1 # SPDX-License-Identifier: GPL-2.0
2 KBUILD_DEFCONFIG
:= mmu_defconfig
5 UTS_SYSNAME
= -DUTS_SYSNAME
=\"Linux
\"
7 UTS_SYSNAME
= -DUTS_SYSNAME
=\"uClinux
\"
10 # What CPU vesion are we building for, and crack it open
12 CPU_VER
:= $(shell echo
$(CONFIG_XILINX_MICROBLAZE0_HW_VER
))
13 CPU_MAJOR
:= $(shell echo
$(CPU_VER
) | cut
-d
'.' -f
1)
14 CPU_MINOR
:= $(shell echo
$(CPU_VER
) | cut
-d
'.' -f
2)
15 CPU_REV
:= $(shell echo
$(CPU_VER
) | cut
-d
'.' -f
3)
17 export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
19 # Use cpu-related CONFIG_ vars to set compile options.
20 # The various CONFIG_XILINX cpu features options are integers 0/1/2...
21 # rather than bools y/n
23 # Work out HW multipler support. This is tricky.
24 # 1. Spartan2 has no HW multipliers.
25 # 2. MicroBlaze v3.x always uses them, except in Spartan 2
26 # 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
27 ifeq (,$(findstring spartan2
,$(CONFIG_XILINX_MICROBLAZE0_FAMILY
)))
29 CPUFLAGS-1
+= -mno-xl-soft-mul
31 # USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
32 CPUFLAGS-
$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL
)) += -mxl-multiply-high
33 CPUFLAGS-
$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL
) += -mno-xl-soft-mul
36 CPUFLAGS-
$(CONFIG_XILINX_MICROBLAZE0_USE_DIV
) += -mno-xl-soft-div
37 CPUFLAGS-
$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL
) += -mxl-barrel-shift
38 CPUFLAGS-
$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR
) += -mxl-pattern-compare
40 ifdef CONFIG_CPU_BIG_ENDIAN
41 KBUILD_CFLAGS
+= -mbig-endian
42 KBUILD_AFLAGS
+= -mbig-endian
45 KBUILD_CFLAGS
+= -mlittle-endian
46 KBUILD_AFLAGS
+= -mlittle-endian
50 CPUFLAGS-1
+= $(call cc-option
,-mcpu
=v
$(CPU_VER
))
52 # r31 holds current when in kernel mode
53 KBUILD_CFLAGS
+= -ffixed-r31
$(CPUFLAGS-y
) $(CPUFLAGS-1
) $(CPUFLAGS-2
)
55 head-y
:= arch
/microblaze
/kernel
/head.o
56 libs-y
+= arch
/microblaze
/lib
/
57 core-y
+= arch
/microblaze
/kernel
/
58 core-y
+= arch
/microblaze
/mm
/
59 core-
$(CONFIG_PCI
) += arch
/microblaze
/pci
/
61 drivers-
$(CONFIG_OPROFILE
) += arch
/microblaze
/oprofile
/
63 boot
:= arch
/microblaze
/boot
65 # Are we making a simpleImage.<boardname> target? If so, crack out the boardname
66 DTB
:=$(subst simpleImage.
,,$(filter simpleImage.
%, $(MAKECMDGOALS
)))
68 core-y
+= $(boot
)/dts
/
70 # defines filename extension depending memory management type
80 $(Q
)$(MAKE
) $(clean)=$(boot
)
83 $(Q
)$(MAKE
) $(build
)=arch
/microblaze
/kernel
/syscalls
all
85 PHONY
+= linux.bin linux.bin.gz linux.bin.ub
86 linux.bin.ub linux.bin.gz
: linux.bin
88 linux.bin linux.bin.gz linux.bin.ub
:
89 $(Q
)$(MAKE
) $(build
)=$(boot
) $(boot
)/$@
90 @echo
'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
92 PHONY
+= simpleImage.
$(DTB
)
93 simpleImage.
$(DTB
): vmlinux
94 $(Q
)$(MAKE
) $(build
)=$(boot
) $(addprefix $(boot
)/$@.
, ub unstrip
strip)
95 @echo
'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
98 echo
'* linux.bin - Create raw binary'
99 echo
' linux.bin.gz - Create compressed raw binary'
100 echo
' linux.bin.ub - Create U-Boot wrapped raw binary'
101 echo
' simpleImage.<dt> - Create the following images with <dt>.dtb linked in'
102 echo
' simpleImage.<dt> : raw image'
103 echo
' simpleImage.<dt>.ub : raw image with U-Boot header'
104 echo
' simpleImage.<dt>.unstrip: ELF (identical to vmlinux)'
105 echo
' simpleImage.<dt>.strip : stripped ELF'
106 echo
' Targets with <dt> embed a device tree blob inside the image'
107 echo
' These targets support board with firmware that does not'
108 echo
' support passing a device tree directly. Replace <dt> with the'
109 echo
' name of a dts file from the arch/microblaze/boot/dts/ directory'
110 echo
' (minus the .dts extension).'
113 MRPROPER_FILES
+= $(boot
)/simpleImage.
*