18e1a6dd2SChris Zankel# 28e1a6dd2SChris Zankel# This file is subject to the terms and conditions of the GNU General Public 38e1a6dd2SChris Zankel# License. See the file "COPYING" in the main directory of this archive 48e1a6dd2SChris Zankel# for more details. 58e1a6dd2SChris Zankel# 68e1a6dd2SChris Zankel# Copyright (C) 2001 - 2005 Tensilica Inc. 7420ae951SMax Filippov# Copyright (C) 2014 Cadence Design Systems Inc. 88e1a6dd2SChris Zankel# 98e1a6dd2SChris Zankel# This file is included by the global makefile so that you can add your own 108e1a6dd2SChris Zankel# architecture-specific flags and dependencies. Remember to do have actions 118e1a6dd2SChris Zankel# for "archclean" and "archdep" for cleaning up and making dependencies for 128e1a6dd2SChris Zankel# this architecture 138e1a6dd2SChris Zankel 148e1a6dd2SChris Zankel# Core configuration. 15173d6681SChris Zankel# (Use VAR=<xtensa_config> to use another default compiler.) 168e1a6dd2SChris Zankel 17420ae951SMax Filippovvariant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME)) 188e1a6dd2SChris Zankel 19173d6681SChris ZankelVARIANT = $(variant-y) 20173d6681SChris Zankelexport VARIANT 218e1a6dd2SChris Zankel 2270cefe76SGeert Uytterhoeven# Test for cross compiling 2370cefe76SGeert Uytterhoeven 2470cefe76SGeert Uytterhoevenifneq ($(VARIANT),) 2570cefe76SGeert Uytterhoeven COMPILE_ARCH = $(shell uname -m) 2670cefe76SGeert Uytterhoeven 2770cefe76SGeert Uytterhoeven ifneq ($(COMPILE_ARCH), xtensa) 2870cefe76SGeert Uytterhoeven ifndef CROSS_COMPILE 2970cefe76SGeert Uytterhoeven CROSS_COMPILE = xtensa_$(VARIANT)- 3070cefe76SGeert Uytterhoeven endif 3170cefe76SGeert Uytterhoeven endif 3270cefe76SGeert Uytterhoevenendif 3370cefe76SGeert Uytterhoeven 348e1a6dd2SChris Zankel# Platform configuration 358e1a6dd2SChris Zankel 368e1a6dd2SChris Zankelplatform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 378e1a6dd2SChris Zankelplatform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 380d456badSMax Filippovplatform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga 398e1a6dd2SChris Zankel 408e1a6dd2SChris ZankelPLATFORM = $(platform-y) 418e1a6dd2SChris Zankelexport PLATFORM 428e1a6dd2SChris Zankel 43b2444d34SChris Zankel# temporarily until string.h is fixed 44a753cd9aSMax FilippovKBUILD_CFLAGS += -ffreestanding -D__linux__ 45b2444d34SChris Zankel 46a0f97e06SSam RavnborgKBUILD_CFLAGS += -pipe -mlongcalls 478e1a6dd2SChris Zankel 48cf1c0aafSChris ZankelKBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) 49cf1c0aafSChris Zankel 5065501622SChris Zankelifneq ($(CONFIG_LD_NO_RELAX),) 5165501622SChris ZankelLDFLAGS := --no-relax 5265501622SChris Zankelendif 5365501622SChris Zankel 54123f15e6SMax Filippovifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1) 5572100ed7SMax FilippovCHECKFLAGS += -D__XTENSA_EB__ 564611bf7eSMax FilippovKBUILD_CPPFLAGS += -DCONFIG_CPU_BIG_ENDIAN 5772100ed7SMax Filippovendif 58123f15e6SMax Filippovifeq ($(shell echo __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1) 5972100ed7SMax FilippovCHECKFLAGS += -D__XTENSA_EL__ 604611bf7eSMax FilippovKBUILD_CPPFLAGS += -DCONFIG_CPU_LITTLE_ENDIAN 6172100ed7SMax Filippovendif 6272100ed7SMax Filippov 63367b8112SChris Zankelvardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y)) 64367b8112SChris Zankelplfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y)) 65367b8112SChris Zankel 66367b8112SChris Zankelifeq ($(KBUILD_SRC),) 67367b8112SChris ZankelKBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs)) 68367b8112SChris Zankelelse 69367b8112SChris ZankelKBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs)) 70367b8112SChris Zankelendif 71367b8112SChris Zankel 72e7d163f7SChris ZankelKBUILD_DEFCONFIG := iss_defconfig 738e1a6dd2SChris Zankel 74f1933189SChris Zankel# Only build variant and/or platform if it includes a Makefile 75f1933189SChris Zankel 760eff08b5SGeert Uytterhoevenbuildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) 770eff08b5SGeert Uytterhoevenbuildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) 78f1933189SChris Zankel 79f1933189SChris Zankel# Find libgcc.a 808e1a6dd2SChris Zankel 81a0f97e06SSam RavnborgLIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 828e1a6dd2SChris Zankel 838e1a6dd2SChris Zankelhead-y := arch/xtensa/kernel/head.o 84e7d163f7SChris Zankelcore-y += arch/xtensa/kernel/ arch/xtensa/mm/ 85f1933189SChris Zankelcore-y += $(buildvar) $(buildplf) 86f1933189SChris Zankel 878e1a6dd2SChris Zankellibs-y += arch/xtensa/lib/ $(LIBGCC) 88e6ffe17eSdanndrivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ 898e1a6dd2SChris Zankel 90da844a81SMax Filippovifneq ($(CONFIG_BUILTIN_DTB),"") 912a02bc16SStephen Warrencore-$(CONFIG_OF) += arch/xtensa/boot/dts/ 92da844a81SMax Filippovendif 93da844a81SMax Filippov 948e1a6dd2SChris Zankelboot := arch/xtensa/boot 958e1a6dd2SChris Zankel 968e1a6dd2SChris Zankelall: zImage 978e1a6dd2SChris Zankel 988e1a6dd2SChris ZankelbzImage : zImage 998e1a6dd2SChris Zankel 1009ad79b58SMax FilippovzImage: vmlinux 1018e1a6dd2SChris Zankel $(Q)$(MAKE) $(build)=$(boot) $@ 1028e1a6dd2SChris Zankel 103da844a81SMax Filippov%.dtb: 1042a02bc16SStephen Warren $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ 105da844a81SMax Filippov 10699085704SRob Herringdtbs: scripts 10799085704SRob Herring $(Q)$(MAKE) $(build)=$(boot)/dts 10899085704SRob Herring 1098e1a6dd2SChris Zankeldefine archhelp 1108e1a6dd2SChris Zankel @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 11199085704SRob Herring @echo ' dtbs - Build device tree blobs for enabled boards' 1128e1a6dd2SChris Zankelendef 113