Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#
# arch/arm/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1995-2001 by Russell King

LDFLAGS_vmlinux :=-p --no-undefined -X
CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
OBJCOPYFLAGS    :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
GZFLAGS         :=-9
#KBUILD_CFLAGS  +=-pipe
# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
KBUILD_CFLAGS   +=$(call cc-option,-marm,)

# Do not use arch/arm/defconfig - it's always outdated.
# Select a platform tht is kept up-to-date
KBUILD_DEFCONFIG := versatile_defconfig

# defines filename extension depending memory manement type.
ifeq ($(CONFIG_MMU),)
MMUEXT          := -nommu
endif

ifeq ($(CONFIG_FRAME_POINTER),y)
KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
endif

ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
KBUILD_CPPFLAGS += -mbig-endian
AS              += -EB
LD              += -EB
else
KBUILD_CPPFLAGS += -mlittle-endian
AS              += -EL
LD              += -EL
endif

comma = ,

# This selects which instruction set is used.
# Note that GCC does not numerically define an architecture version
# macro, but instead defines a whole series of macros which makes
# testing for a specific architecture or later rather impossible.
arch-$(CONFIG_CPU_32v7)         :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a)
arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
# Only override the compiler option if ARMv6. The ARMv6K extensions are
# always available in ARMv7
ifeq ($(CONFIG_CPU_32v6),y)
arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
endif
arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3

# This selects how we optimise for the processor.
tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
tune-$(CONFIG_CPU_ARM7TDMI)     :=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM740T)      :=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM9TDMI)     :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM940T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM946T)      :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)

ifeq ($(CONFIG_AEABI),y)
CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
else
CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
endif

# Need -Uarm for gcc < 3.x
KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float

CHECKFLAGS      += -D__arm__

#Default value
head-y          := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
textofs-y       := 0x00008000

 machine-$(CONFIG_ARCH_RPC)        := rpc
 machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
 machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
 machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
 machine-$(CONFIG_ARCH_CO285)      := footbridge
  incdir-$(CONFIG_ARCH_CO285)      := ebsa285
 machine-$(CONFIG_ARCH_SHARK)      := shark
 machine-$(CONFIG_ARCH_SA1100)     := sa1100
ifeq ($(CONFIG_ARCH_SA1100),y)
# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 textofs-$(CONFIG_SA1111)          := 0x00208000
endif
 machine-$(CONFIG_ARCH_PXA)        := pxa
 machine-$(CONFIG_ARCH_L7200)      := l7200
 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
 textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
 machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
 machine-$(CONFIG_ARCH_IOP32X)     := iop32x
 machine-$(CONFIG_ARCH_IOP33X)     := iop33x
 machine-$(CONFIG_ARCH_IOP13XX)    := iop13xx
 machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
 machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
 machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
 machine-$(CONFIG_ARCH_OMAP1)      := omap1
 machine-$(CONFIG_ARCH_OMAP2)      := omap2
  incdir-$(CONFIG_ARCH_OMAP)       := omap
 machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
 machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
 machine-$(CONFIG_ARCH_VERSATILE)  := versatile
 machine-$(CONFIG_ARCH_IMX)        := imx
 machine-$(CONFIG_ARCH_H720X)      := h720x
 machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 machine-$(CONFIG_ARCH_REALVIEW)   := realview
 machine-$(CONFIG_ARCH_AT91)       := at91
 machine-$(CONFIG_ARCH_EP93XX)     := ep93xx
 machine-$(CONFIG_ARCH_PNX4008)    := pnx4008
 machine-$(CONFIG_ARCH_NETX)       := netx
 machine-$(CONFIG_ARCH_NS9XXX)     := ns9xxx
 textofs-$(CONFIG_ARCH_NS9XXX)     := 0x00108000
 machine-$(CONFIG_ARCH_DAVINCI)    := davinci
 machine-$(CONFIG_ARCH_KS8695)     := ks8695
  incdir-$(CONFIG_ARCH_MXC)        := mxc
 machine-$(CONFIG_ARCH_MX3)        := mx3

ifeq ($(CONFIG_ARCH_EBSA110),y)
# This is what happens if you forget the IOCS16 line.
# PCMCIA cards stop working.
CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
export CFLAGS_3c589_cs.o
endif

# The byte offset of the kernel image in RAM from the start of RAM.
TEXT_OFFSET := $(textofs-y)

ifeq ($(incdir-y),)
incdir-y := $(machine-y)
endif
INCDIR   := arch-$(incdir-y)

ifneq ($(machine-y),)
MACHINE  := arch/arm/mach-$(machine-y)/
else
MACHINE  :=
endif

export  TEXT_OFFSET GZFLAGS MMUEXT

# Do we have FASTFPE?
FASTFPE         :=arch/arm/fastfpe
ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
FASTFPE_OBJ     :=$(FASTFPE)/
endif

# If we have a machine-specific directory, then include it in the build.
core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
core-y                          += $(MACHINE)
core-$(CONFIG_ARCH_S3C2410)     += arch/arm/mach-s3c2400/
core-$(CONFIG_ARCH_S3C2410)     += arch/arm/mach-s3c2412/
core-$(CONFIG_ARCH_S3C2410)     += arch/arm/mach-s3c2440/
core-$(CONFIG_ARCH_S3C2410)     += arch/arm/mach-s3c2442/
core-$(CONFIG_ARCH_S3C2410)     += arch/arm/mach-s3c2443/
core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
core-$(CONFIG_VFP)              += arch/arm/vfp/

# If we have a common platform directory, then include it in the build.
core-$(CONFIG_PLAT_IOP)         += arch/arm/plat-iop/
core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
core-$(CONFIG_PLAT_S3C24XX)             += arch/arm/plat-s3c24xx/
core-$(CONFIG_ARCH_MXC)         += arch/arm/plat-mxc/

drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/

libs-y                          := arch/arm/lib/ $(libs-y)

# Default target when executing plain make
ifeq ($(CONFIG_XIP_KERNEL),y)
KBUILD_IMAGE := xipImage
else
KBUILD_IMAGE := zImage
endif

all:    $(KBUILD_IMAGE)

boot := arch/arm/boot

#       Update machine arch and proc symlinks if something which affects
#       them changed.  We use .arch to indicate when they were updated
#       last, otherwise make uses the target directory mtime.

include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
        @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
ifneq ($(KBUILD_SRC),)
        $(Q)mkdir -p include/asm-arm
        $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
else
        $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
endif
        @touch $@

archprepare: maketools

PHONY += maketools FORCE
maketools: include/linux/version.h include/asm-arm/.arch FORCE
        $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h

# Convert bzImage to zImage
bzImage: zImage

zImage Image xipImage bootpImage uImage: vmlinux
        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@

zinstall install: vmlinux
        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@

CLEAN_FILES += include/asm-arm/mach-types.h \
               include/asm-arm/arch include/asm-arm/.arch

# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
        $(Q)$(MAKE) $(clean)=$(boot)

# My testing targets (bypasses dependencies)
bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@


define archhelp
  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
  echo  '  bootpImage    - Combined zImage and initial RAM disk' 
  echo  '                  (supply initrd image via make variable INITRD=<path>)'
  echo  '  install       - Install uncompressed kernel'
  echo  '  zinstall      - Install compressed kernel'
  echo  '                  Install using (your) ~/bin/installkernel or'
  echo  '                  (distribution) /sbin/installkernel or'
  echo  '                  install to $$(INSTALL_PATH) and run lilo'
endef