xref: /openbmc/linux/arch/arm/Makefile (revision b6dcefde)
1#
2# arch/arm/Makefile
3#
4# This file is included by the global makefile so that you can add your own
5# architecture-specific flags and dependencies.
6#
7# This file is subject to the terms and conditions of the GNU General Public
8# License.  See the file "COPYING" in the main directory of this archive
9# for more details.
10#
11# Copyright (C) 1995-2001 by Russell King
12
13LDFLAGS_vmlinux	:=-p --no-undefined -X
14ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
15LDFLAGS_vmlinux	+= --be8
16endif
17
18OBJCOPYFLAGS	:=-O binary -R .note -R .note.gnu.build-id -R .comment -S
19GZFLAGS		:=-9
20#KBUILD_CFLAGS	+=-pipe
21# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
22KBUILD_CFLAGS	+=$(call cc-option,-marm,)
23
24# Do not use arch/arm/defconfig - it's always outdated.
25# Select a platform tht is kept up-to-date
26KBUILD_DEFCONFIG := versatile_defconfig
27
28# defines filename extension depending memory management type.
29ifeq ($(CONFIG_MMU),)
30MMUEXT		:= -nommu
31endif
32
33ifeq ($(CONFIG_FRAME_POINTER),y)
34KBUILD_CFLAGS	+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
35endif
36
37ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
38KBUILD_CPPFLAGS	+= -mbig-endian
39AS		+= -EB
40LD		+= -EB
41else
42KBUILD_CPPFLAGS	+= -mlittle-endian
43AS		+= -EL
44LD		+= -EL
45endif
46
47comma = ,
48
49# This selects which instruction set is used.
50# Note that GCC does not numerically define an architecture version
51# macro, but instead defines a whole series of macros which makes
52# testing for a specific architecture or later rather impossible.
53arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
54arch-$(CONFIG_CPU_32v6)		:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
55# Only override the compiler option if ARMv6. The ARMv6K extensions are
56# always available in ARMv7
57ifeq ($(CONFIG_CPU_32v6),y)
58arch-$(CONFIG_CPU_32v6K)	:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
59endif
60arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
61arch-$(CONFIG_CPU_32v4T)	:=-D__LINUX_ARM_ARCH__=4 -march=armv4t
62arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4
63arch-$(CONFIG_CPU_32v3)		:=-D__LINUX_ARM_ARCH__=3 -march=armv3
64
65# This selects how we optimise for the processor.
66tune-$(CONFIG_CPU_ARM610)	:=-mtune=arm610
67tune-$(CONFIG_CPU_ARM710)	:=-mtune=arm710
68tune-$(CONFIG_CPU_ARM7TDMI)	:=-mtune=arm7tdmi
69tune-$(CONFIG_CPU_ARM720T)	:=-mtune=arm7tdmi
70tune-$(CONFIG_CPU_ARM740T)	:=-mtune=arm7tdmi
71tune-$(CONFIG_CPU_ARM9TDMI)	:=-mtune=arm9tdmi
72tune-$(CONFIG_CPU_ARM940T)	:=-mtune=arm9tdmi
73tune-$(CONFIG_CPU_ARM946E)	:=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
74tune-$(CONFIG_CPU_ARM920T)	:=-mtune=arm9tdmi
75tune-$(CONFIG_CPU_ARM922T)	:=-mtune=arm9tdmi
76tune-$(CONFIG_CPU_ARM925T)	:=-mtune=arm9tdmi
77tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi
78tune-$(CONFIG_CPU_FA526)	:=-mtune=arm9tdmi
79tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
80tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
81tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
82tune-$(CONFIG_CPU_XSC3)		:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
83tune-$(CONFIG_CPU_FEROCEON)	:=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
84tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
85
86ifeq ($(CONFIG_AEABI),y)
87CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork
88else
89CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
90endif
91
92ifeq ($(CONFIG_ARM_UNWIND),y)
93CFLAGS_ABI	+=-funwind-tables
94endif
95
96ifeq ($(CONFIG_THUMB2_KERNEL),y)
97AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
98AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
99CFLAGS_THUMB2	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
100AFLAGS_THUMB2	:=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
101endif
102
103# Need -Uarm for gcc < 3.x
104KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
105KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
106
107CHECKFLAGS	+= -D__arm__
108
109#Default value
110head-y		:= arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
111textofs-y	:= 0x00008000
112textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
113# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
114ifeq ($(CONFIG_ARCH_SA1100),y)
115textofs-$(CONFIG_SA1111) := 0x00208000
116endif
117
118# Machine directory name.  This list is sorted alphanumerically
119# by CONFIG_* macro name.
120machine-$(CONFIG_ARCH_AAEC2000)		:= aaec2000
121machine-$(CONFIG_ARCH_AT91)		:= at91
122machine-$(CONFIG_ARCH_BCMRING)		:= bcmring
123machine-$(CONFIG_ARCH_CLPS711X)		:= clps711x
124machine-$(CONFIG_ARCH_DAVINCI)		:= davinci
125machine-$(CONFIG_ARCH_DOVE)		:= dove
126machine-$(CONFIG_ARCH_EBSA110)		:= ebsa110
127machine-$(CONFIG_ARCH_EP93XX)		:= ep93xx
128machine-$(CONFIG_ARCH_GEMINI)		:= gemini
129machine-$(CONFIG_ARCH_H720X)		:= h720x
130machine-$(CONFIG_ARCH_INTEGRATOR)	:= integrator
131machine-$(CONFIG_ARCH_IOP13XX)		:= iop13xx
132machine-$(CONFIG_ARCH_IOP32X)		:= iop32x
133machine-$(CONFIG_ARCH_IOP33X)		:= iop33x
134machine-$(CONFIG_ARCH_IXP2000)		:= ixp2000
135machine-$(CONFIG_ARCH_IXP23XX)		:= ixp23xx
136machine-$(CONFIG_ARCH_IXP4XX)		:= ixp4xx
137machine-$(CONFIG_ARCH_KIRKWOOD)		:= kirkwood
138machine-$(CONFIG_ARCH_KS8695)		:= ks8695
139machine-$(CONFIG_ARCH_L7200)		:= l7200
140machine-$(CONFIG_ARCH_LH7A40X)		:= lh7a40x
141machine-$(CONFIG_ARCH_LOKI) 		:= loki
142machine-$(CONFIG_ARCH_MMP)		:= mmp
143machine-$(CONFIG_ARCH_MSM)		:= msm
144machine-$(CONFIG_ARCH_MV78XX0)		:= mv78xx0
145machine-$(CONFIG_ARCH_MX1)		:= mx1
146machine-$(CONFIG_ARCH_MX2)		:= mx2
147machine-$(CONFIG_ARCH_MX25)		:= mx25
148machine-$(CONFIG_ARCH_MX3)		:= mx3
149machine-$(CONFIG_ARCH_MXC91231)		:= mxc91231
150machine-$(CONFIG_ARCH_NETX)		:= netx
151machine-$(CONFIG_ARCH_NOMADIK)		:= nomadik
152machine-$(CONFIG_ARCH_NS9XXX)		:= ns9xxx
153machine-$(CONFIG_ARCH_OMAP1)		:= omap1
154machine-$(CONFIG_ARCH_OMAP2)		:= omap2
155machine-$(CONFIG_ARCH_OMAP3)		:= omap2
156machine-$(CONFIG_ARCH_OMAP4)		:= omap2
157machine-$(CONFIG_ARCH_ORION5X)		:= orion5x
158machine-$(CONFIG_ARCH_PNX4008)		:= pnx4008
159machine-$(CONFIG_ARCH_PXA)		:= pxa
160machine-$(CONFIG_ARCH_REALVIEW)		:= realview
161machine-$(CONFIG_ARCH_RPC)		:= rpc
162machine-$(CONFIG_ARCH_S3C2410)		:= s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
163machine-$(CONFIG_ARCH_S3C24A0)		:= s3c24a0
164machine-$(CONFIG_ARCH_S3C64XX)		:= s3c6400 s3c6410
165machine-$(CONFIG_ARCH_S5PC1XX)		:= s5pc100
166machine-$(CONFIG_ARCH_SA1100)		:= sa1100
167machine-$(CONFIG_ARCH_SHARK)		:= shark
168machine-$(CONFIG_ARCH_STMP378X)		:= stmp378x
169machine-$(CONFIG_ARCH_STMP37XX)		:= stmp37xx
170machine-$(CONFIG_ARCH_U300)		:= u300
171machine-$(CONFIG_ARCH_U8500)		:= ux500
172machine-$(CONFIG_ARCH_VERSATILE)	:= versatile
173machine-$(CONFIG_ARCH_W90X900)		:= w90x900
174machine-$(CONFIG_FOOTBRIDGE)		:= footbridge
175
176# Platform directory name.  This list is sorted alphanumerically
177# by CONFIG_* macro name.
178plat-$(CONFIG_ARCH_MXC)		:= mxc
179plat-$(CONFIG_ARCH_OMAP)	:= omap
180plat-$(CONFIG_ARCH_STMP3XXX)	:= stmp3xxx
181plat-$(CONFIG_PLAT_IOP)		:= iop
182plat-$(CONFIG_PLAT_NOMADIK)	:= nomadik
183plat-$(CONFIG_PLAT_ORION)	:= orion
184plat-$(CONFIG_PLAT_PXA)		:= pxa
185plat-$(CONFIG_PLAT_S3C24XX)	:= s3c24xx s3c samsung
186plat-$(CONFIG_PLAT_S3C64XX)	:= s3c64xx s3c samsung
187plat-$(CONFIG_PLAT_S5PC1XX)	:= s5pc1xx s3c samsung
188
189ifeq ($(CONFIG_ARCH_EBSA110),y)
190# This is what happens if you forget the IOCS16 line.
191# PCMCIA cards stop working.
192CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
193export CFLAGS_3c589_cs.o
194endif
195
196# The byte offset of the kernel image in RAM from the start of RAM.
197TEXT_OFFSET := $(textofs-y)
198
199# The first directory contains additional information for the boot setup code
200ifneq ($(machine-y),)
201MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
202else
203MACHINE  :=
204endif
205
206machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
207platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
208
209ifeq ($(KBUILD_SRC),)
210KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
211else
212KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
213endif
214
215export	TEXT_OFFSET GZFLAGS MMUEXT
216
217# Do we have FASTFPE?
218FASTFPE		:=arch/arm/fastfpe
219ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
220FASTFPE_OBJ	:=$(FASTFPE)/
221endif
222
223# If we have a machine-specific directory, then include it in the build.
224core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
225core-y				+= $(machdirs) $(platdirs)
226core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/
227core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)
228core-$(CONFIG_VFP)		+= arch/arm/vfp/
229
230drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
231
232libs-y				:= arch/arm/lib/ $(libs-y)
233
234# Default target when executing plain make
235ifeq ($(CONFIG_XIP_KERNEL),y)
236KBUILD_IMAGE := xipImage
237else
238KBUILD_IMAGE := zImage
239endif
240
241all:	$(KBUILD_IMAGE)
242
243boot := arch/arm/boot
244
245archprepare:
246	$(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
247
248# Convert bzImage to zImage
249bzImage: zImage
250
251zImage Image xipImage bootpImage uImage: vmlinux
252	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
253
254zinstall install: vmlinux
255	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
256
257# We use MRPROPER_FILES and CLEAN_FILES now
258archclean:
259	$(Q)$(MAKE) $(clean)=$(boot)
260
261# My testing targets (bypasses dependencies)
262bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
263i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
264
265
266define archhelp
267  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
268  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
269  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
270  echo  '  uImage        - U-Boot wrapped zImage'
271  echo  '  bootpImage    - Combined zImage and initial RAM disk'
272  echo  '                  (supply initrd image via make variable INITRD=<path>)'
273  echo  '  install       - Install uncompressed kernel'
274  echo  '  zinstall      - Install compressed kernel'
275  echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
276  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
277  echo  '                  install to $$(INSTALL_PATH) and run lilo'
278endef
279